John has $10 in his bank account when he gets a job. He begins making $120 a day. A student found that
the equation that represents this situation is y = 10x + 120.
What is wrong with the student's equation? Complete the explanation and correct the student's error.

its a

Step-by-step explanation:

Answer:

Option A

Step-by-step explanation:

A linear function's standard form is represented by the equation

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept(where the line crosses the y-axis).

So if a function has a slope of 7/2 which is the value of m and crosses the y-axis at 9 which is the value of b then the equation would be

[tex]y=mx+b\\y=\frac{7}{2}x+9[/tex]

So option A is our answer

Answer:

185

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

3885=21d

21d=3885

d=185

Answer:

x<-4

Step-by-step explanation:

First you have to add 4 by both sides, which will give you 8x<-32.

Then  just divide both sides by 8 and you should get the same answer.

Answer:

Area = a^4 + 10 a^2 + 6 a + 15

Step-by-step explanation:

Height: a^2+3

Width: a^2 +2a+5

Area of the entire rectangle = Height x Width

So we have to multiply both expressions and apply distributive property:

Area = (a^2 + 3) x (a^2 + 2a + 5)

Area = a^2 x (a^2 + 2a + 5) + 3 x (a^2 +2a + 5)

Area = a^4 + 2a^2 + 5a^2   + 3a^2 + 6a + 15

grouping terms of same power of a:

Area = a^4 + (2+5+3)a^2 + 6a + 15

Area = a^4 + 10 a^2 + 6 a + 15

Answer:

Lost Boy, One Call Away, Train wreck, Sad song?

Step-by-step explanation:

Those are just some songs I thought of their not the best but hope it helps some. And good job on singing hope you do well... YOU GOT THIS!! Have a nice day stranger!!

Answer:

For a rectangle with length 3x+4 and perimeter of 10x+18, what is the width of the rectangle

Answer:

[tex]\sqrt{x^2+y^2+1}=18[/tex]

Step-by-step explanation:

We are given:

[tex]x^2=18x+y\qquad\qquad[1][/tex]

[tex]y^2=18y+x\qquad\qquad[2][/tex]

Subtracting [1] and [2]:

[tex]x^2-y^2=18x+y-(18y+x)[/tex]

Operating:

[tex]x^2-y^2=18x+y-18y-x[/tex]

Recall:

[tex]x^2-y^2=(x-y)(x+y)[/tex]

Substituting:

[tex](x-y)(x+y)=18x+y-18y-x[/tex]

Rearranging:

[tex](x-y)(x+y)=18x-18y-(x-y)[/tex]

[tex](x-y)(x+y)=18(x-y)-(x-y)[/tex]

Dividing by x-y (recall x≠y):

[tex]x+y=18-1=17[/tex]

[tex]x+y=17\qquad[3][/tex]

Now we add [1] and [2]:

[tex]x^2+y^2=18x+y+18y+x[/tex]

Rearranging:

[tex]x^2+y^2=18x+18y+x+y[/tex]

[tex]x^2+y^2=18(x+y)+(x+y)[/tex]

[tex]x^2+y^2=19(x+y)[/tex]

Substituting from [3]

[tex]x^2+y^2=19*17=323[/tex]

Adding 1:

[tex]x^2+y^2+1=324[/tex]

Taking the square root:

[tex]\sqrt{x^2+y^2+1}=\sqrt{324}=18[/tex]

Thus:

[tex]\mathbf{\sqrt{x^2+y^2+1}=18}[/tex]

Answer:

A is the correct equation to use when solving this problem

The least number of cars she can wash is 15

Step-by-step explanation:

If "'x" is the number of cars Emilia washes, then we would need to multiply that by the amount of money she gets from each car which means that "14x" needs to be in the equation somewhere. From this, we can already rule out C and D because those don't have "14x".

Also, since it says that Emilia needs at least $240, that would mean that she needs $240 or higher. Since the sign in equation A shows that, we know that it is equation A.

Since Emilia needs $240 or higher, the least number of cars she could wash would need to give her enough money to get to $240 when added to the $30 Emilia already has. We can multiply 14 by 15 to give us 210 which when added to the $30 she already has, will give us $240 which is the minimum amount of money she needs to buy new headphones.

(I'm sorry this is so confusing. I'm not good with words but I hope this helped)

Answer:

95.40 total and 5.40 in intreset

Step-by-step explanation:

Answer:

A = $95.40

I = A - P = $5.40

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 6%/100 = 0.06 per year.

Solving our equation:

A = 90(1 + (0.06 × 1)) = 95.4

A = $95.40

The total amount accrued, principal plus interest, from simple interest on a principal of $90.00 at a rate of 6% per year for 1 years is $95.40.

Answer:

$12.35

Step-by-step explanation:

Amount earned by Campbell per week = $494

Tax rate = 2.25 %

Amount withheld = 2.25% of his earning;

Amount withheld = 2.25 % of 494

Amount withheld = 0.025 * 494

Amount withheld  = $12.35

Hence the amount withheld from his weekly pay for state income tax is $12.35

Answer:

either b or d

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:

Answer:

The total amount of money Bernadette earned in April was $6200

Step-by-step explanation:

Let us solve the question

∵ Each month Bernadette receives $2000

∵ She also receives a 5% commission for all of her sales

∴ She earns each month = 2000 + 5% of her sales

∵ In April, Bernadette sold $84,000 worth of used cars

→ Multiply it by 5% to find her commission

∴ Her commission = 5% × 84,000

→ Change 5% to decimal by divide it by 100

∵ 5% = 5 ÷ 100 = 0.05

∴ Her commission = 0.05 × 84,000

∴ Her commission = $4200

→ Add her commission to her fixed amount to find her salary in April

∵ She earned in April = 2000 + 4200

∴ She earned in April = 6200

∴ The total amount of money Bernadette earned in April was $6200

Answer: Bernadette works at a Car Lot in Buffalo selling used cars. Each month Bernadette receives $2000 plus she receives a 5% commission for all of her sales. In April, Bernadette sold $84,000 worth of used cars. Calculate the total amount of money Bernadette earned in April.

Step-by-step explanation:

$2000 + 5% + $84,000= 86000.05 or 86000

All you have to do is just Add - $2000 + 5% + $84,000=

And it gives you 86000.05 or 86000

Sorry if I got it wrong.

Answer:

-36

Step-by-step explanation:

3+2+1+2=8-4-3=1-2=-1-1=-2x1x2=-4-1=-5-27=-33-3=-36

Answer:

m angle B=141

Step-by-step explanation:

a 7 sided shape has 900 total degrees

subtract all the known angkes to find your answer

900-90-148-142-130-129-120=141

hope this helps :)

1.) As the sun light travels along path through as atmosphere to reach our eyes, the blue light has been mostly remove living mostly red and yellow light remain since red light waves are scattered the list by atmospheric gas molecules

2.) Rainbows are formed when it’s misty or spray the sky with water. It’s not solely just from after a rain; you only need water that can act at as prism and light to shine to create a rainbow.

3.) Having gold at the end of rainbow is just a myth since you can never reach the end of the rainbow. A rainbow is caused by dispersion of light in water droplet which is why they occur when sun comes out after rain.

Answer:

-1/626 and for 23-3x=2   x=7

Step-by-step explanation:

Answer:

He told me that he was a nice fellow

I told him that he looked sad and tired

She told me that I was a clever person

She told them that they could pass their exams if they worked hard

Sabnam said that she had gone to the hospital the previous day

Shilpa said that she had been extremely nervous the previous week

Husaain said that they had gone to bed early the previous night

Rahul said that he had not taken a taxi home the previous night

Answer:

In each bowl, Cory put 500 grams of candy.

Step-by-step explanation:

You would do 4,500 - 1 (since he save a kilogram for himself), which would equal 3,500.

Then, you would do 3,500 divided by 7 (since there are 7 bowls and he wants to split the remaining candy evenly), which would equal 500.

Answer:

Cory served 500 grams of candy in each bowl.

Step-by-step explanation:

4,500 = 4.50 kilograms

4.50kg - 1.00kg = 3.50kg

3.50kg ÷ 7kg = 0.50kg

0.50kg = 500g

Answer:

1. 27.0 m

2. 28.0 degrees

Step-by-step explanation:

1. AB

To find AB, we start by getting the measure of the third angle A

Mathematically;

A + 90 + 51 = 180

The sum of angles in a triangle is 180

A = 180-90-51

A = 39

We then proceed to use the sine rule

Mathematically, the sine rule states that the ratio of the measure of a side and the sine of the angle facing the side is same for each side of the triangle

Thus, with respect to the given triangle;

17/sin 39 = x/sin 90

x = 17sin90/sin 39

x = 27.0 m

Kindly note that we substituted x for AB

2. To find the measure of angle A we use the sine rule as used above, but here we have a missing angle and not a missing side

Thus;

34/sin 127 = 20/sin A

Sin A = (20 sin 127)/34

sin A = 0.469

A = sin^-1 0.469

A = 28.0 degrees

Answer:

6.8 - 0.9 = 5.9

Step-by-step explanation:

5.9 is the only average that seemed reasonable. Hope I helped.

According to the margin of error, it is found that plausible values for the mean wingspans of the population of local dragonflies are between 5.9 and 7.7 cm.

It is about how much the measure can plausibly differ from the sample mean.

In this problem, considering the sample mean of 6.8 cm and the margin of error of 0.9 cm, the bounds of plausible values are given by:

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Answers and steps are in the picture below!

Answer:

to verify this answer you need to substitute the answer you got for x

Step-by-step explanation:

7(3)-2=19

21-2=19

19=19

this means that you are correct

Answer:

D BOTTOM RIGHT

Step-by-step explanation:

Answer:b

Step-by-step explanation:

Answer:B

Step-by-step explanation:

Answer:

A - 90ml

B - 150ml

Step-by-step explanation:

A - 150ml ÷ 100 = 1.5 x 60 = 90ml

B - 250ml ÷ 100 = 2.5 x 60 = 150ml

Brandon needs 90 ml and 150 ml of alcohol to make 150 ml and 250 ml hand sanitizer.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Brandon decided to make his own hand sanitizer.

To be effective, hand sanitizer should contain 60% alcohol.

a) 150ml of hand sanitizer;

Use percentage formula,

Percentage of alcohol = 150 x 60 / 100

Percentage of alcohol = 90 ml

a) 250ml of hand sanitizer;

Use percentage formula,

Percentage of alcohol = 250 x 60 / 100

Percentage of alcohol = 150 ml

Therefore, he needs 90 ml and 150 ml of alcohol to make 150 ml and 250 ml hand sanitizer.

To learn more about the percentage;

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Answer:

What 108 represents here is that the total number of phones she has to fix each week is 108 phones

Step-by-step explanation:

The linear equation is

P = 108-23d

compare this with the general form;

y = mx + c

we have;

P = -23d + 108

We can see that 108 represents the y-intercept in this case

The x-value at the y-intercept is 0

So what this mean is that the number of phones she has to fix each week is 108

Answer:

the answer is 612 -4n4+6n-5772

The expression that has like terms is (C) 7n+4n-3m-6n.

An expression can be as simple as a single number or variable, or it can be more complex, involving multiple operations and variables.

For example, the expression "3x + 4" contains the variable x, along with the constant values 3 and 4, and the operations of multiplication and addition.

Like terms are terms that have the same variables raised to the same powers.

In the first expression, 9n^7 and -2n have different powers of n, so they are not like terms. The constant term, -4112, is also not like any other term.

In the second expression, 3n and -3 are like terms, as they are both constants with no variables.

In the third expression, 7n, 4n, and -6n are all like terms because they all have the same variable, n, raised to the first power.

In the fourth expression, -4n^4 and 6n have different powers of n, so they are not like terms. The constant term, 612-5772=-5160, is also not like any other term.

Therefore, the expression that has like terms is (C) 7n+4n-3m-6n.

To know more about an expression follow

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