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melomori [17]
3 years ago
14

How do you solve twelve less than the quotient of a number and 7 is -2

Mathematics
1 answer:
Drupady [299]3 years ago
6 0

Remark

One of the things you need to do is learn to read phrase by phrase.

What is the quotient of a number and 7? That meas you have a number, x, and it is divided by 7. What you do that the answer you get is the quotient.

x/7 is what you know so for. Now the first part says you take 12 away from that.

x/7 - 12 is what you have after doing that.

The result you get is - 2

x/7 - 12 = - 2 Add 12 to both sides

x/7 - 12 + 12 = - 2 + 12

x/7 = 10 Now multiply by 7

x = 10 *7

x = 70 <<< Answer the number is 70


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25. John hired a plumber who charges a flat fee of $75 plus $55 per hour. The total charge
mestny [16]

Answer: 55x + 75 = 350; 5 hours

Step-by-step explanation:

What we know:

- A flat fee is $75

- John charges $55 an hour

- The total charge is $350

We need to write an equation to find how many hours John works.

<em>x </em>will represent hours worked.

55x + 75 = 350

We now need to solve for x.

Subtract 75 from both sides.

55x + 75 - 75 = 350 - 75

Simplify.

55x = 275

Divide 55 from both sides.

55x/55 = 275/55

Simplify.

x = 5

John worked 5 hours.

To check our work, we just plug in our x value!

55(5) + 75

275 + 75 = 350

3 0
2 years ago
(12x6) - (3x2) how do you write in words to match the expression?
notka56 [123]

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3 years ago
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sattari [20]

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7 0
3 years ago
Write an equation in slope-intercept form for the line parallel to y= -7x-9 that passes through the point (4,9). Show your work.
MrRa [10]

Answer:  y=-7x + 37

Step-by-step explanation:

Parallel lines will have the same slope but different y-intercepts  so again we can  use the coordinates to determine the y intercept of the new equation.

So we know that the slope intercept formula is y=mx + b where m is the slope and b is the y-intercept so we will input the x and y coordinates to solve for b.

9 = -7(4) + b

9 = -28 + b

+28  +28

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The equation will be y= -7x + 37

6 0
3 years ago
Please answer quickly for 5 stars and brainliest!!
nydimaria [60]

Answer:

Bank West

$242.82

Step-by-step explanation:

To find which bank will yield more interest for Emilio, we can solve for the interest of each bank by using the Compound interest formula:

A=P(1+\dfrac{r}{n})^{nt}

For the Bank West we have:

n = 4 Quarterly

t = 6 years

r = 3.8% or 0.038

P = 15820

Let's substitute them in the formula.

A=15820(1+\dfrac{0.038}{4})^{4(6)}

A=15820(1+\dfrac{0.038}{4})^{24}

A=15820(1+0.0095)^{24}

A=15820(1.0095)^{24}

A=19849.89

Now let's solve for the Interest. We subtract our total amount to the principal amount.

Interest = 19849.89 - 15820

Interest = 4029.89

Now let's solve for the First Bank.

n = 12 Monthly

t = 5 years

r = 4.3% or 0.043

P = 15820

Let's substitute them in the formula.

A=15820(1+\dfrac{0.043}{12})^{12(5)}

A=15820(1+\dfrac{0.043}{12})^{60}

A=19607.07

Now for the interest:

Interest = 19607.07 - 15820

Interest = 3787.07

This gives us:

Bank West Interest = $4029.89

First Bank Interest = $3787.07

So Bank West will earn more interest than First Bank.

To find how much more interest we subtract the interest of Bank West to First Bank.

4029.89 - 3787.07 = $242.82

4 0
3 years ago
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