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3 years ago

8

What is the value of x in the equation 8x-5(x-1)=20 1. 25/3 2. 21/4 3. 5 4. 7

1 answer:

Ede4ka [16]3 years ago

8 0

Answer : x = 5
So pick “(3)”

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Which ratio is proportional to 18/28 ? <br> Help me plzzzz i will give brainliest

maks197457 [2]

Answer:

18/21 = 30/35

Step-by-step explanation:

so the problem says 18/21 so if that's the correct ratio to proportion to the answer would be. 30/35. the reason is that you can divide 18 and 21 by 3 to get 6/7 then if you multiply by 5 you get 30/35. Dividing and multiplying both the denominator and numerator keeps the ratio proportional.

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3 years ago

Write 22 decreased by 6 as an algebraic expression

Alona [7]

Answer:

22-6

Step-by-step explanation:

there isnt a variable so the answer is 16

6 0

3 years ago

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Suppose that a large pumpkin empty a swimming pool in 40 hours and that a small pumpkin empty a pool and 70 hours working togeth

Norma-Jean [14]

Answer:

Total 25.45 hours will be taken to empty the pool.

Step-by-step explanation:

Time taken by large pumpkin to empty the pool=40 hours

Time taken by the smaller pumpkins to empty the pool=70 hours

Amount of pool emptied by large pumpkin in one hour= $\frac{1}{40}$

Amount of pool emptied by small pumpkin in one hour= $\frac{1}{70}$

Amount of pool emptied in one hour if both pumpkins work together=

$\frac{1}{40}$ + $\frac{1}{70}$

= $\frac{11}{280}$

Therefore, the no. of days will be the reciprocal of the amount of work done in one hour ie . $\frac{280}{11}$

Total 25.45 hours will be taken to empty the pool.

5 0

3 years ago

There are 18 girls in a basketball team. If the starting lineup consists of 5 players, then how many possible starting lineups a

vichka [17]

The answer would be 90 line ups

This is because 18 x 5 = 90

8 0

3 years ago

Read 2 more answers

Evaluate (3x-y)/(3(x-y)) if x = 5 and y = 3. *

mel-nik [20]

Answer:

2

Step-by-step explanation:

Write the equation

$\frac{3x-y}{3(x-y)}$

Add the variables

$\frac{3(5)-3}{3(5-3)}$

Multiply 3 x 5

$\frac{15-3}{3(5-3)}$

Subtract the parentheses

$\frac{15-3}{3(2)}$

Subtract the numerator

$\frac{12}{3(2)}$

Reduce the fraction with 3

$\frac{12}{3(2)} = \frac{4}{2}$

Reduce the fraction again with 2

$\frac{4}{2} = 2$

And there's your answer of 2!

5 0

4 years ago