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kirill [66]
2 years ago
6

Ezra enjoys gardening.

Mathematics
1 answer:
GalinKa [24]2 years ago
6 0

Answer:

8

Step-by-step explanation:

That is the quetion that sal khan explaind in the vid BOI

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What is 3(9-3r)= simplifyed
Gwar [14]

27-9r
explaintion:
3•9+3•-3r
27+3•-3r=
27-9r
6 0
3 years ago
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Isabella has dance class every 3 days and soccer
Nataliya [291]

Answer:

15

Step-by-step explanation:

first you need to find the LCM (least common multiple) which is 15 so then every 15 days she will have both soccer, dance class and swimming class on the same day

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3 years ago
It take 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same Pace, how many days will
ludmilkaskok [199]

Answer:

The workers will need 10 days to finish the job.

Step-by-step explanation:

To solve this question we can use a compound rule of three. We have:

10 road workers -> 5 days -> 2h/day

2 road workers ->  x days -> 5h/days

The first thing we should do is analyze how the proportions between the variables work, if they're inversely or directly proportional. If we raise the number of workers we expect that the amount of days needed to finish the job lowers and if we raise the number of hours worked in a day we expect that the workers would need less days to finish the job. So we need to invert the fractions that are inversely proportional to the amount of days worked, then we have:

2 -> 5 -> 5

10-> x -> 2

x = (5*2*10)/(2*5) = 100/10 = 10 days

8 0
2 years ago
Factor the polynomial by its greatest common monomial factor.<br><br> 9m3 – 27m=
jek_recluse [69]

Step-by-step explanation:

9m out of 9m³h−27m

9m(m²h−3)

8 0
2 years ago
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The product of two rational number is 7. If one of the number
FinnZ [79.3K]

Answer:

7/12 OR 0.58 (2.d.p)

Step-by-step explanation:

Product means that the two rational numbers are being multiplied to get 7.

The question also tells us that one of them is 12. Therefore we can write an equation to express this information where we represent the unknown rational number using the letter 'r':

r x 12 = 7

Rearrange to find r:

r x 12 / 12 = 7 /12

r = 7/12 = 0.5833....

= 0.58 (2.d.p)

Hope this helped!

7 0
2 years ago
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