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3 years ago

Please help need answer. NO LINKS

Mathematics

1 answer:

nikklg [1K]3 years ago

7 0

Answer:

Answer choice C) 3a-3

Step-by-step explanation:

Your perimeter is of (10a-6). The first step would be multiply 2a by 2 since you have to sides. Which would give you to 4a. Next you will have to subtract 4a from (10a-6). This would give you 6a-6. Finally divide by two and you will get 3a-3.

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A coach needs to rank his top 2 players in order. How many possible ways can this be done if there are 25 boys on the team?

likoan [24]

Assuming "top two" are ranked first and second:
The coach can choose one out of 25 for the first and 24 for the second.
So there are 25*24=600 ways to choose.

If "top two" simply means the two best, without distinction, then we divide 600 by two to get 300 ways because the choice of the order can be reversed (AB instead of BA).

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3 years ago

Which equations can be used to find the area?

vaieri [72.5K]

Answer:

A.) 2(1/2×20×50)+2(1/2×20×10)

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Stels [109]

Answer:

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Step-by-step explanation:

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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the eq

wlad13 [49]

The value of x in terms of b is x = $\frac{-3}{b}$ . Therefore the value of x when b = 3 is x = $\frac{-3}{3}$ = -1.

We can find both answers by rearranging the equation to get "x =", and then substituting in 3 for b:

-2(bx - 5) = 16

-2bx + 10 = 16

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-2bx = 6

÷ -2

bx = -3

÷ b

x = -3/b, which is the answer to the first part.

To get the second answer, we just substitute b = 3 into this equation and we get:

x = -3/b = -3/3 = -1

I hope this helps!

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3 years ago

Simplify by dividing negative three over eight divided by five over nine.

goblinko [34]

Answer:

$\frac{-27}{40}$

Step-by-step explanation:

First we need to write in correct form :

$\frac{-3}{8}:\frac{5}{9}$

We know how to divide fractions. If we can divide numerator by numerator, denominator by denominator, we just do it. In this example we can not do that.

So, we rewrite first fraction and multiply by reciprocal second ( numerator and denominator change place)

$\frac{-3}{8} *\frac{9}{5}$

Now, multiply numerator by numerator, denominator by denominator :

$\frac{-27}{40}$

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3 years ago

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