the cement truck can pour 20 pounds of cement I 45 seconds how long will it take the cement truck to pour 150 pounds of cement

Mathematics

1 answer:

Rufina [12.5K]3 years ago

6 0

337.5 seconds for 150 pounds of cement to be poured

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Can anyone please help me out? I have to find the Greatest Common Factor for each, thank you!

CaHeK987 [17]

Answer:

1= 4x^2

2= 5b^4

3= 3u^2v^2w

4= 7

5= bc^3d^6

Note: ^ stands for exponents

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3 years ago

Brian has 5 marbles, Sarah has 9 marbles, Jimi has 4 marbles, and Juan has 6 marbles. They want to redistribute the marbles so t

Dvinal [7]

6 marbles per person.

If we count the number of marbles in total, we get 24: 5+9+4+6= 24

Now that we know the Total # of marbles, we need to know how many people we need to distribute marbles to. We count Brian, Sarah, Jimi, and Juan and get 4 people in total.

To find how many marbles each person needs to receive, we then need to do 24 divided by 4.

When we do this, we get 6 marbles per person.

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3 years ago

A student answers

Marina CMI [18]

So, we have the percentage she gets which is, 90% and the number of questions she answers correctly, which is 27

To find the number of questions in the exam, make an equation
(90% = $\frac{90}{100}$ = 0.9)
$\frac{90}{100}$ = $\frac{27}{x}$
cross multiply and equate them
90x = 27 x 100
90x = 2700
divide by 90 on either sides to isolate x in order to find the answer
$\frac{90x}{90} = \frac{2700}{90}$
90 and 90 cancels out
x = 30
So your final answer will be, there were 30 questions in the exam paper.

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3 years ago

Please help what are the points ?

insens350 [35]

Answer:
You go to the orgin and the move 7 steps left to the negative, after that move 5 steps up

(-7,5)

4 0

3 years ago

1/2x+4=20 solve for x.. Help?

hichkok12 [17]

Answer: 32

Step-by-step explanation: ok so here is what i do for those I grab a caculator (desmos online caculator i like to use but not required) then ill do (1/2×x)+4 but then once i write that i go back to the x delete the x and keep putting random numbers in higher and higher by one till the i get the answer (example: for this one i wrote that than i removed the x in it and did 1/2×5+4 then when that did not equal 20 i turned the 5 into a 6 then 6 was wrong so 7, then 8, then i just skipped to 20 then 20 was still wrong so skipped to 30, 30 was also wrong but CLOSE so then i tried 31 then 32 till the answer was 20 and when i did 32 it did say 20) hopes this helps

7 0

3 years ago

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