Mathematics Middle School

Kayla is given a monthly allowance. She uses 40% of this allowance to purchase a designer bag, and then donates $15 to a charity. If she ends up with $155, which of the equations below can be used to determine what her monthly allowance was?
a. 0.40 X -15 = 155
b. 40 X + 15 = 155
c. 0.60 X - 15 = 155
d. 60 X -15 = 155

Answers

Answer 1

Answer:

A. 0.40x - 15=155

Step-by-step explanation:

40% can be written as 0.40

x = total money earned

-15 from that total

Answer 2

The expression which can be used to calculate her monthly allowance is 0.6X - 15 = 155

Let :

monthly allowance = X

Designer bag purchase = 40% of X = 0.4X

Donation to charity = $15

Total amount left = $155

Percentage left after bag purchase :

1 - 0.4X = 0.6X

0.6X - charity = amount left

Therefore, the required expression is 0.6X - 15 = 155

Learn more : https://brainly.com/question/18106342

Related Questions

what is the decimal form and fractioin form

Answers

Answer: Mathematics includes the study of such topics as quantity, structure, space, and change. It has no generally accepted definition. Mathematicians seek and use patterns to formulate new conjectures; they resolve the truth or falsity of such by mathematical proof.

Step-by-step explanation:

Answer:

fraction: 67 1/2 decimal: 67.5

Step-by-step explanation:

Look at the word “permission.” a) What is the ratio of consonants to vowels? b) What fraction of the letters are consonants? c) What percent of the letters are vowels. please do all steps giving brain list

Answers

Answer:

6:4 or 3:2

6/10 are consonants

40%

Step-by-step explanation:

A) count the numbers of consonants and vowels. There are 6 consonants and 4 vowels so the ration is 6:4. If you're simplifying, you divide both sides by 2 to get 3:2

B) Count the total letters. There are 6 consonants and 10 total letters so the fraction is 6/10 because 6 put of 10 are consonants.

C) 4. x

- = 10x = 4(100)

10. 100. 10x = 400

- -

10. 10

x= 40

You divide 10 by 10 to get x alone and then divide 400 by ten.

HA look at ur nose Check my nose Man U donut

A tepee is designed to have a diameter of 10 feet and a volume of 366 feet at what h Igor should the support poles cross to assemble the tepee (round ur answer to the nearest foot)

Answers

Answer:

A. 14ft

Step-by-step explanation:

First get the cones volume formula v=(3.14*r^2*h)/3

Second find the radius which is 1/2 the diameter.

Third plug in given and solve 366= (3.14*5^2*h)/3

366*3=3*(3.14*25*h)/3

1098=78.5h

1098/78.5=78.5h/78.5

13.987=h

Answer:

Step-by-step explanation:

Plz answer and explain!!! 10 points!!

Answers

I think it’s 5
Hopefully this helps

Answer:

20 square units

Step-by-step explanation:

First you would divide the sqaure into 2 triangles and 1 suqare then you would find the area of those

Please help!
omplete the table for an object that goes 3/4 miles in 6 minutes.
distance (mi)
3/4, 1 1/2, 2 1/4
time (h)
1/10,?

Answers

I’m pretty sure that the answer would be. 13 hours in all but dk!

Identify the terms, like terms, coefficients, and constants in each expression.

PLZ HELP I WILL GIVE BRAINLIEST!!
BUT to get brainliest you must:
- explain
- give answers
- Answer all
- NO INAPPROPIATE CONTENT (its happened before)

Answers

Like terms:2, and 7 Coefficent:5, constant:2 and 7

The sum of two numbers is 14 and their difference is 18. Find the larger number.

Answers

Answer:

Let a = the larger number and b = the smaller

a + b = 14

a - b = 18

We can add the 2 equations together.

2a = 32

2a/2 = 32/2

a = 16

The answer is 16
Because a = the larger number and b = the smaller number so equations would look like a+b=14 and a-b=18 we can add the 2 equations together and get 2a=32 then simply to 2a/2=32/2 then simplify that and get the answer a=16

Write 0.46 as a fraction in simplest form.
0.46=

Answers

The answer is 23 over 50 or 23/50 what ever you can understand better hope it help

it would be 23/50 because it’s originally 46/100 but that simplified as far down as possible is 23/50

Ms. Barno found that the slope of the line that passes through the points (-6, 1) and (2, 5) is 2. Her work is below: m=−6−21−5=−8−4=2 Is her work correct or incorrect? If it is correct, justify her work. If it is incorrect, explain her mistake and what the correct answer should be. A Ms. Barno is correct B Ms. Barno is incorrect, the slope should be -2. She forgot her negaitive sign. C Ms. Barno is incorrect, the slope is 12 . She switched the x and y values in the formula. D Ms. Barno is incorrect, the slope is −32 . She did not follow the rule of subtraction.

Answers

I think it’s B , hope this helped

I thinks it’s b but I’m not entirely sure

A courier originally had 5 packages to deliver. Suppose x represents the number of packages she has delivered so far and y represents the total weight of the packages she has yet to deliver. Which of the following statements are correct? Select three that apply.

Answers

Answer:

A,E,F

Step-by-step explanation:

You can read 1/10 of your book in 1/2 hour. How much of the book can you read in 1 hour?

Answers

Answer:

Then you read none

Step-by-step explanation:

18383

Can someone help me with theses

Answers

The answer is 6.30$

1. $50
2. $ 1.01, $0.94, $0.91, The unit rate decreases
3. $0.53 per dozen muffins

The shaded portion of the grid below represents the portion of a granola bar remaining.

Answers

Answer:

A. 1%

B. 80%

C. 0.8, 8/10

Step-by-step explanation:

A. There are 100 blocks so each block is 1/100 which is 1%

B. As you can see, there are 80 blocks shaded so that would be 80/100 which is 80%

C. You can represent a percent as a decimal or a fraction

Hope this helped!

A 1%. Jdjddjdjfjfjdndndbdbdbdbdbdndddd

Number 36 right here

Answers

(0,-3)
I hope this is right

Answer:

0,5 for 36, and for 37 it’s b

Step-by-step explanation:

Rewrite the expression in the form 5^n

(5^-8) (5^-10)

Answers

Step-by-step explanation:

This problem is all about bases and exponents. Because we have a quotient and the bases are both 5's, that means that we can use the rule of exponents for quotients to rewrite and simplify:

That's the simplification as long as you are "allowed" to leave the exponent as a negative number.

pls help me! (question is in the picture)

Answers

Answer:

getting the wrong answer or not using the correct symbols

Step-by-step explanation:

Getting the wrong answer or simply acting bad

What is the slope of the line that passes through the points (-9, 10)(−9,10) and (21, 15) ? (21,15)? Write your answer in the simplest form.

Answers

Answer:

Slope Is 1/6

Step-by-step explanation:

That's the answer

Answer:

slope = 0.75

Step-by-step explanation:

Can someone help me with this? Its math :/

Answers

1. put a point on -2, the go up and down 4/1 , put a point on 3, and go up and down 1/1
2. put a point on 3 and go up and down 2/1,
subtract 4x and add it to the other side, then you get 2y= -4x -8, divide by 2, and you get y= -2x - 4, plot a point on -4, and go up and down 2/1
hope this helps, feel free to mark brainliest

This is a y=mx+b problem
This is how you would graph it
| The answer for the first one would be
V ( 1,2)

please help. I really need it.

Answers

It’s b and d because when simplified they’re both 25/1

PLZ ANSWER ASAP WILL MAKE BRAINLIEST FOR BEST ANSWER AND EXPLAIN YOUR ANSWER
Three friends participated in a fund-raising project. Dexter collected 2/5 of the total amount. Carter collected $272 more than Jack. Jack collected $764 how much did the three of them collect altogether?

There were 1,265 people at a boat show. After 1/5 of the adults and 1/3 of the children left, there was an equal number of children and adults at the show. how many people left the show?

Answers

I pretty sure the answer to the first question is 3,000. I got this by adding the 272 more Carter got to the 764 and then adding the 764 that Jack collected. I then got 1,800. I divided it by 3 cause it was 3/5 of the final project. I got 600 from that. The I did 600 times 5 and got 3,000. I don't know if it's right but it might help...

NEED HELP NOW!!!!!!!!!!!!!!!!!!!!!!!!!!
WILL AWARD BRAINEST!!!!!!!!!!!!!!!!!!!!!!

On a coordinate plane, 2 straight lines are shown. The first solid line has a negative slope and goes through (negative 2, 3) and (0, negative 1). Everything to the left of the line is shaded. The second dashed line has a negative slope and goes through (0, 2) and (1, 0). Everything to the right of the line is shaded.

Which inequality pairs with y≤−2x−1 to complete the system of linear inequalities represented by the graph?

y −2x+2
y 2x−2

Answers

The answer for this is y-2x+2

I agree it’s y - 2x+2

PLZ ANSWER I WILL MARK BRAINLIEST

Answers

Answer:

9.6 cm to (t) or 9.6:(t) im pretty shore

and

(t) to 9.6 cm or (t):9.6

Step-by-step explanation:

Answer:

Step-by-step explanation:

an equation for it is When x > 3, (3 - x )2 > 0; we say (3 - x )2 is positive ( + )

Tyler bought a shirt from the 25% off rack. It normally costs $16. Here is the money he paid.

A ten dollar bill and two one dollar bills

Why did he pay $12? the options are (Sales Tax, Markup, Interest, Tip, Markdown, and Commission)

Answers

25% = 1/4 of 100
$16/4 = $4
$16-$4= $12
The item (the shirt in this case) was marked down

25%*16=4
so, subtract 4 from 16 to get the marked down price of $12.

he paid $12 because the original price was marked down.

Geometry Question!! 10 points!!!

Answers

Answer:

Step-by-step explanation:

just

The water park is a popular field trip destination. This year the senior class at high school a and high school b both planned trips there. The senior class at high school a rented filled 4 vans and 14 buses with 742 students. High school b rented and filled 4 vans and 6 buses with 350 students. Each van and each bus carried the same number of students. Find the number of students in each van and in each bus.

Answers

so let’s start of by setting variables for buses and vans
x = buses
y = vans

our equations will look something like this :

4x + 14y = 742 &’
4x + 6y = 350

let’s solve for y first . we need to cancel out our x’s so we turn on of them into a negative and since both of them have the same common factor we don’t need to find it . let’s multiply the bottom equation by ( -1 )

here’s what our new equations look like :
4x + 14y = 742
-4x - 6y = -350

now that our x’s are cancelled out we add our y’s and our totals :

14y + ( -6y ) = 8y
742 + ( -350 ) = 392

we want y alone so we divide :

392/8 = 49

y = 49

now we can substitute 49 for y :

4x + 14 ( 49 ) = 742
4x + 6 ( 49 ) = 350

we can multiply those numbers together :

4x + 686 = 742
4x + 294 = 350

now we add downward :

8x + 980 = 1,092

we need x alone so we subtract 980 from both sides :

8x = 112

divide by 8 :

x = 14

now , we can substitute 14 for x and 49 for y to check our work :

4 ( 14 ) + 14 ( 49 ) = 742

742 = 742 ✅

4 ( 14 ) + 6 ( 49 ) = 350

350 = 350 ✅

A family eats at a restaurant. The bill is $42. The family leaves a tip......

How much was the tip as a percentage of the bill

Answers

7.77% because yes. Also hope this helps lol.

7.77% I hope that’s it

A school allots £2500 to spend on a trip to the theatre.
Theatre tickets have a regular cost of £35 each and are on offer for
1/5off.
A train ticket for the day will cost £20 each.
If 3 teachers and the maximum number of students attend, how much money will the school have left over?

Answers

Answer:

Theatre tickets have a regular cost of £35 each and are on offer for 1/5 off. A train ticket for the day will cost £20 each. If 3 teachers and the maximum number of students attend

Step-by-step explanation:

WILL MARK BRAINLIEST IF CORRECT
What is the solution to the system of equations below?

y = one-half x + 6 and y = negative three-fourths x minus 4

A. (–8, 2)
B. (–8, –1)
C. (8, 10)
D. (8, –10)

Answers

Hey that’s the problem I put in my classes test

can anyone help me with this

Answers

The answer is 27 :) ......

At the start of the month,the value of an investment was $48.45.By the end of the month, the value of the investment changed by a loss of $13.8.What is the value, in dollars,of the investment at the end of the month?

Answers

Answer:

34.65$

you just subtract the 13.8$ from the 48.45$

Other Questions

can some please help me !will mark brainliest ! Andrea runs a fruit store. She started Sunday with 20 cherries in stock. During the day, she sold 17 cherries and got a shipment of fresh cherries. The shipment contained 4 times as many cherries as she started the day with. How many cherries does Andrea have in stock at the end off the day?answer:example Which of the following is true about Bindusaras birth?He never knew who his father was.His mother was poisoned and died before she gave birth.He was born to a peasant woman.His fathers advisor tried to assassinate him as he was being born. Which native american group cleared large areas of rainforest to farm Lana makes eight dollars an hour Plus $12 an hour for every hour overtime. Overtime hours are any hours more than 40 hours for the week create an equation that shows the amount of wages earned, W, for working X hours in a week when there is no overtime Scientists use _____ as chemical symbols.dotslettersshapeslines how do family member and peer group help to socialize a person? Elucidate Choose the correct set of y-values for the function y = -2x when x = -2, 0, 2.(-2, 4), (0, 0), (2, -4)(-2, -4), (0, 0), (2, -4)(-2, 4), (0, -2), (2, 4)(-2, -4), (0, 0), (2, 4) Solve each equation mentally for x.5/2 x = 1Your answer must be in the form of a fraction. PLS HELP I'M STRUGGLING!!!These days, fewer and fewer traditional incandescent lightbulbs are being used in homes. This is because lightbulb technology has improved since incandescent bulbs were developed. Incandescent bulbs work by running electricity through a wire inside the bulb. The wire glows, creating light. However, incandescent bulbs waste a lot of electricity by producing heat rather than light. In the past several years, less wasteful LED lights and compact fluorescent bulbs have become increasingly popular for home use.Which option best evaluates how well the following summary reflects the original passage? Incandescent bulbs are a great form of technology. A. The summary is weak because it does not accurately convey the meaning of the passage. B. The summary is strong because it states the main idea of the passage and the most important supporting detail.C. The summary is strong because it gives a good overview of the passage without getting into minor details. D. The summary is weak because it focuses on a supporting detail rather than the main idea of the passage. complete the following table to show the total revenue and the total profit of the firm at each level of output the firm might produce. Asuume the market price is 200 Chemical Equations :p Yes, because each input has an output.Yes, because 3 has one output.No, because 1 has two inputs.No, because -2 has two outputs. What is the molecular formula of the compound with a molecular weight of 112 g/mol and percent composition: 85.6% C and 14.4% H?Select one:a. C2H4b. CH2c. C4H8d. C8H16 Jeremy wants to borrow $100 from his brother. His brother agreed butsaid he would add a 15% annual interest rate on. Jeremy will be able to pay him back in 10 months. How much interest will he have to pay his brother? $12.50$1.25$125$13 The following information is also available: A) A count of supplies revealed $1,800 worth on hand at December 31, 2018. B) An insurance policy, purchased on January 1, 2018, covers four years. C) The equipment depreciates at a rate of $2,400 per year; no depreciation has been recorded for 2018. D) One half (or 50%) of the amount recorded as Deferred Revenue remains deferred as of December 31, 2018. E) The accrued amount of salaries and wages at December 31, 2018 is $3,400. When writing an informative essay, the best way to make sure Internet information is reliable is to use Aluminum nitrate reacts with sodium hydroxide to form a precipitate of aluminum hydroxide. What mass of aluminum hydroxide will precipitate when 35.5 mL of 0.145 mol/L aqueous aluminum nitrate is mixed with 44.2 mL of 0.215 mol/L aqueous sodium hydroxide? Assuming there are no reflections or dilations,explain how you would write the oquation of thefunction whose graph is sketched below. How should i come out as pansexual, been different for a while, and i am 12...So they dont take this down: is Pfizer an actual vaccine?