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3 years ago

A(b-c)=d Solve for c.

1 answer:

7 0

A(b-c)=d
We are trying to leave c on one side, so we have to divide by A on both sides first to get
b-c=d/A
now we can subtract by b on both sides to get
-c=d/A-b
now multiply both sides by -1 to get
c=-d/A+b

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at a local print shop 20 copies can be made for $4. At this rate how mamy copoes can be made for $14

Anon25 [30]

Answer:

70 copies

Step-by-step explanation:

If 20 copies makes $4 then if you take 20/4 then that gives you 5 copies/dollar

So 5 times 14 equals 70 copies

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4 years ago

Read 2 more answers

An employer interviews 12 people for four openings at a company. Five of the 12 people are women. All 12 applicants are qualifie

MA_775_DIABLO [31]

Answer:

a) The employer can fill the four positions in 495 ways.

b) The employer can fill the four positions in 210 ways.

Step-by-step explanation:

The order is not important.

For example:

Selecting John, Laura, Mary and Tre'Davious is the same as selecting Laura, John, Mary and Tre'Davious.

So we use the combinations formula to solve this problem.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

(a) the selection is random

There are 12 people, and 4 are selected. So

$C_{12,4} = \frac{12!}{4!8!} = 495$

(b) exactly two selections are women?

There are 7 men and 5 women. We want to select 2 men and 2 women. So

$C_{7,2}*C_{5,2} = \frac{7!}{2!5!}*\frac{5!}{2!3!} = 210$

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4 years ago

Reid is taking piano and trumpet lessons. He likes the piano more, and last month

castortr0y [4]

Answer:

he would have spent 10 hours on the piano.

Step-by-step explanation:

every time he practices he practices two more hours on the piano then on the trumpet times that by two and you have your answer

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3 years ago

Please help me! (I'm new to Algebra)

KiRa [710]

Answer:

part A is crosby is correct because when u see multiplying by exponents, the exponents are gonna be added.

part B is Adam is correct because when u divide numbers by exponents its gonna be subtracting the exponents

Step-by-step explanation:

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3 years ago

Can we conclude that these two triangles are congruent?

Aleonysh [2.5K]

Answer:

Yes,

Step-by-step explanation:

because two sides are shown equal to each other, a and b. Also two angles are equal to each other, x and y. Once you know two angles or two sides are equal so is the third side.

Another way is SAS (side angle side). There is side a, angle y, and side b. These are shown on both triangles.

Therefore, we can conclude these two triangles are congruent.

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4 years ago