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mrs_skeptik [129]

2 years ago

9

75 percent of the sutdents in a school went on a field trip. If 285 students went on the trip, how any students are in the schoo

l

1 answer:

natita [175]2 years ago

8 0

Answer:

380

Step-by-step explanation:

285 / x = 75 / 100

Cross multiply 28500 = 75x

Divide by 75 380

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AlekseyPX

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2 years ago

Last Sunday an accident caused a traffic jam 12 miles long on a straight stretch of a two lane freeway. how many vehicles do you

Alex787 [66]

Answer:

4310

Step-by-step explanation:

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3 years ago

Convert 11.42424242 … to a rational expression in the form of , where b ≠ 0.

statuscvo [17]

I think it is the second one but im not for sure

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4 0

3 years ago

Resolver la siguiente ecuación por eliminación o sustitución: a-8b= -9 a-2b= -7

Crazy boy [7]

Answer: Solution: $a=\dfrac{-19}{3}$ and $b=\dfrac{1}{3}$ .

Step-by-step explanation:

The given pair of equations:

$a-8b= -9\ ...(i)\\\\ a-2b= -7\ ...(ii)$

Eliminate equation (i) from (ii) , we get

$-2b-(-8b)=-7-(-9)\\\\\Rightarrow\ -2b+8b=-7+9\\\\\Rightarrow\ 6b=2\\\\\Rightarrow\ b=\dfrac{1}{3}$

Put value of b in (ii) , we get

$a-2\times\dfrac{1}{3}=-7\\\\\Rightarrow\ a=-7+\dfrac{2}{3}\\\\\Rightarrow\ a=\dfrac{-21+2}{3}\\\\\Rightarrow\ a=\dfrac{-19}{3}$

Solution: $a=\dfrac{-19}{3}$ and $b=\dfrac{1}{3}$ .

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3 years ago

HURRY PLS HELP ILL GIVE BRAINLYEST Subtract.

natka813 [3]

Answer:

2940

Step-by-step explanation:

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2 years ago

Read 2 more answers