Answer:
The answer to your question is Antony bought 5 pens
Step-by-step explanation:
pens = p = $0.35
pencils = n = $0.15
total amount = 12
total money spent = $2.80
Process
1.- Write equations
p + n = 12 -------------- (l)
0.35p + 0.15n = 2.80 --------------(ll)
2.- Solve the system of equations by elimination
Multiply equation l by - 0.35
- 0.35p - 0.35n = -4.2
0.35p + 0.15 n = 2.8
0 - 0.2n = -1.4
Solve for n
n = -1.4 / -0.2
n = 7 He bought 7 pencils
3.- Find the value of p
p + 7 = 12
p = 12 - 7
p = 5 He bought 5 pens
(10-3)(-2)
giving brainlist out
Answer:
i think the answers 5
Step-by-step explanation:
Answer:
-14
Step-by-step explanation:
(10-3)(-2)
(7)(-2)
-14
At a concert, you buy some T-shirts for $12.00 each and the
same number of CDs for $7.50 each. Write an expression in
simplest form that represents the total amount spent.
Answer:
19.5x
Step-by-step explanation:
12x +7.50x = 19.5x
x-is the number of t-shirts or CDs
The following system of equations intersects at one point. What is the y-coordinate of this point? y = -x-1 3x - 2y = 1
Answer:
-3
Step-by-step explanation:
What is the slope of the line graphed on the coordinate plane?
Answer:
3/4 slope
Step-by-step explanation:
Mark me brainleist please ;c
don’t make me cry ;c
Step-by-step explanation:
When the line moves up 3 blocks, it also moves across 4 blocks.
Therefore the slope of the line is 3/4.
Hellppppp plzzz I’m bad at math-
Tony wants to buy a new iPad mini for his birthday. A brand new iPad mini has a regular price
of $399. If Tony buys the iPad today, he will receive 20% off the original price. Find the
discount and the sale price of the iPad mini.
Answer:
319.20
Step-by-step explanation:
399×20%=79.8
399 - 79.8= 319.20
I need help with this :( will mark brainliest
a. 20 because y is the amount of $$ in account now
b. 12 a $$
c. 260, bc 12*20= 240 240+20=260
What is the equation of the line that passes through the point (8,-8) and has a
slope of – 12
Answer:
y + 8 = -12(x - 8)
General Formulas and Concepts:
Algebra I
Point-Slope Form: y - y₁ = m(x - x₁)
x₁ - x coordinate y₁ - y coordinate m - slopeStep-by-step explanation:
Step 1: Define
Point (8, -8)
Slope m = -12
Step 2: Write Function
Substitute variables into general form.
y + 8 = -12(x - 8)
please help me answer this!! i will give brainliest and 5 star rating!!
please help due in a couple of minutes
Step-by-step explanation:
the answer is steaming
-3.6h = -10.8
what's h
Answer: 3
Step-by-step explanation:
your meal at the school cafeteria costs $3.45. Your friends meal costs $3.90. you pay for both meals with a $10bill. How much change do you receive? show your work
Answer:
You pay for both 10-(3.45+3.90)= 2.65Answer:
well for me
Step-by-step explanation:
3.45+3.90=7.35
10-7.35
2.65
Martin made 16 of of his 20 free throws attempted. What percent of free throws did Martin make?
Answer:
80 percent
Step-by-step explanation:
20 / 100 = 0.20
16 / 0.20 = 80
16 is 80 percent of 20
Answer:
80% or .8
Step-by-step explanation:
16/20 is equal to .8 or 80%
transversals angles
the answer of your question is angle 3
Please help!
Stephen had his scooter repaired for a total of $90. The cost for the parts was $25. The cost for the labor was $15 an hour. If h represents the number of hours, which of the following shows an equality between two different ways of expressing the total cost of Stephen's scooter repairs?
A. 40h = 90
B. 15 + 25h = 90
C. 90 + 25h = 15
D. 15h + 25 = 90
Answer: D
Step-by-step explanation:
Answer:D
Step-by-step explanation:
...
Solve there Systems of equations. Step - by - Step 2x + y = 15
3x - y = 5
Answer:
2x+y=15, 6x+3y=45
3x-y=5, 6x-2y=10
Y=35, plug it in, x=-10
Step-by-step explanation:
Maria had $100 at the beginning of summer vacation. She plans to mow lawns and charge $20 per lawn. Which graph could be used to determine the amount of money Maria will have after mowing 10 lawns if she saves all of her money?
Answer:
Line graph
Step-by-step explanation:
GEOMETRY Please find the X! plspls
Answer:
What she said
Step-by-step explanation:
A circular region has a population of about 250,000 people and a population density of about 125 people per square mile. Find the radius of the
region. Round your answer to the nearest hundredth.
The radius of the region is about
miles
Answer:
2.5 km
Step-by-step explanation:
Order the set of integers from greatest to least. {6, 17, -20, 15, -19, 26}
Joseph buys carrots for his horse every weekend. He paid $4.69 for 7 carrots at a farm stand last weekend. This weekend, Joseph paid $5.76 for 12 carrots at the supermarket. Which location offers the better deal?
Answer:
The super market offers the best deal
Step-by-step explanation:
Answer:
Its the super market ~your friendy neighborhood austrailain~
Step-by-step explanation:
what is the quotient of -0.05 ÷ -5/16
Answer:
Step-by-step explanation:
-0.05 you will multiply with reversal of -5/16
-0.05 x (-16/5)= 0.01x16=0.16
Solve for x:122+4x=3x+87
Answer:
122+4x=3x+87
the first step is to move the variable and constants because we can not add variable and constants together we will move 3x and 122 it will be something like this: 3x-4x=122-87 now that the constants and variables have moved we can solve it because we moved them the addition symbol will become a subtraction symbol the answer will be: 1x=35
Step-by-step explanation:
122+4x=3x+87
3x-4x=122-87
1x=35
I hope this helped
david is 5 years older than jonathan. in 6 years, double jonathans age added to quadruple davids age will equal to 128. what is each of their current ages?
Answer:
David a 17 ans et Jonathan a 12 ans
Step-by-step explanation:
David aura 23 ans dans 6 ans et Jonathan aura 18 ans dans 6 ans
Donc 23 * 4 = 92 et 18*2 = 36 comme 92+36=128 on trouve leurs ages dans 6 ans et on soustrait ensuite 6 à leurs ages dans 6 ans pour trouver leurs ages aujourd'hui
Which equation is represented by the graph below?
Will give crown to the most helping
Answer:
15
19
23
35
Step-by-step explanation:
Just replace x with the numbers in the chart.
Answer:
15, 19, 23, 35
Step-by-step explanation:
Just substitute the variable.
please answer!! Is due tmrrw! WILL GIVE BRAINLIEST! :)
Answer
division
Step-by-step explanation:
i barely know division
Answer:
N - 45
O - 77
P - 125
Q - 113
R - 120
S - 136
T - 149
U - 216
V - 343
hudson went into a restaurant and bought 8 hamburgers and 4 drinks, costing a total of $52. Levi went into the same restaurant and bought 5 hamburgers and 7 drinks costing a total of $46.
Answer:
The price of each hamburger is $5 and the price of each drink is $3.
Step-by-step explanation:
x --> the price of each hamburgery --> the price of each drink8x+4y=525x+7y=46Solve system of equationsThe intersection is (3,5)Which house and decorations is better
Answer:
The First house, also has a bigger bed! :)
Step-by-step explanation:
Answer: the first one hi Nana if u keep getting friend request ignore it im tryna make a bunch of acc but tell josh 2 talk 2 me
Step-by-step explanation:
Given that log x = 3 and log y = 5, find log (x^2)(y^2)- log xy
Step-by-step explanation:
logx²y² - logxy
= log(x²y²/xy)
= logxy
= logx + logy
= (3) + (5)
= 8.
The value of logx²y² - logxy when log x = 3 and log y = 5 is 8.
What is a logarithm?The logarithm is the opposite of exponentiation as a function. The exponent to which b must be raised in order to obtain a number x is hence the logarithm of a number x to the base b.
Given:
log x = 3 and log y = 5
logx²y² - logxy
Calculate the above expression as shown below,
logx²y² - logxy = log x²y² / xy
logx²y² - logxy = log xy
logx²y² - logxy = logx + logy
logx²y² - logxy = 3 + 5
logx²y² - logxy = 8
Therefore, the value of logx²y² - logxy when log x = 3 and log y = 5 is 8.
To know more about logarithms:
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