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3 years ago

What are compatible numbers?

Mathematics

2 answers:

posledela3 years ago

4 0

Numbers that are close in value to the actual numbers.

andriy [413]3 years ago

3 0

Compatible numbers are numbers that are close

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How do u solve for s?

Rzqust [24]

Divided by 0 on both sides

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3 years ago

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Which expressjon is equivalent to -15x+39

Travka [436]

B is the correct answer

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Members of the drama club held a car wash to raise funds for their spring musical. They

jenyasd209 [6]

Answer:

100 cars

25 trucks

Step-by-step explanation:

$3c + $5t = $425

c + t = 125 vehicles

($3 * 100) + ($5 * 25) = $425

100 + 25 = 125

Therefore, they washed 100 cars and 25 trucks

Hope this helps!

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3 years ago

Next-door neighbors Bob and Jim use hoses from both houses to fill Bob's swimming pool. They know that it takes 12 h using both

Leokris [45]

Answer:

Jim's hose: 27 hours.

Bob's hose: 21.6 hours.

Step-by-step explanation:

Let t represent hours taken by Jim's hose.

Part of pool filled by Jim's hose in 1 hour would be $\frac{1}{t}$ .

We have been given that Bob's hose, used alone, takes 20% less time than Jim's hose alone. This means that Bob's hose take will take 80% time of Jim's hose that is $0.8t$ .

Part of pool filled by Bob's hose in 1 hour would be $\frac{1}{0.8t}$ .

We are also told that it takes 12 hours using both hoses. Part of pool filled by both hoses in 1 hour would be $\frac{1}{12}$ .

Now, we will add rates of both hoses and equate with $\frac{1}{12}$ as:

$\frac{1}{t}+\frac{1}{0.8t}=\frac{1}{12}$

$\frac{0.8}{0.8t}+\frac{1}{0.8t}=\frac{1}{12}$

$\frac{0.8+1}{0.8t}=\frac{1}{12}$

$\frac{1.8}{0.8t}=\frac{1}{12}$

Cross multiply:

$0.8t*1=1.8(12)$

$0.8t=21.6$

$\frac{0.8t}{0.8}=\frac{21.6}{0.8}$

$t=27$

Therefore, it will take 27 hours for Jim's hose to fill the pool alone.

Time take by Jim's hose alone: $0.8t\Rightarrow 0.8(27)=21.6$ .

Therefore, it will take 21.6 hours for Bob's hose to fill the pool alone.

3 0

4 years ago

Is 1/8+1 2/5=1 21/40?

vladimir1956 [14]

Answer:

Yes

Step-by-step explanation:

1 21/40=1.525

1/8+1 2/5=1.525

Hope this helps :)

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3 years ago

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