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julia-pushkina [17]
3 years ago
12

Help!!!!!!!!!!!!!!!!!!!!????

Mathematics
1 answer:
ratelena [41]3 years ago
3 0
1. 77 mph
We already know they travel 38.5 miles in 30 minutes. So we multiply 38.5 x 2 because 30 minutes is 1/2 of an hour. 38.5 x 2 = 77

5. 8.5 minutes (8 minutes and 30 seconds) per mile
We have to divide 25.5 by 3 to know how many minutes it takes Jerry to run one mile.

8. 34.06
This one is kinda easier. We already know 34 is the whole number. 6 divided by 100 is 0.06, so we simply add 34 + 0.06
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The answer would be 9 feet.
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Simplify w1/2 and w1/3
mars1129 [50]

Answer:

They are on their simplified form.

Step-by-step explanation:

Since these numbers are prime numbers we can't simplify them. But we can change them to decimal.

1/2=0.5

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Sing acts are 5 min long and comedy acts are 3 min long. The show has 12 acts and last 50 min. How many singing acts and how man
ryzh [129]

Answer

so there are 7 singing acts and 5 comedy acts.

Step-by-step explanation:

Let x= number of singing acts.

Let y= number of comedy acts.

We will take x+y=12 as our first equation, as there are 12 shows in total. We will take 5x+3y=50 as our second equation as there are 50 total minutes, and singing acts are 5 mins and comedy acts are 3 mins.

We solve x+y=12

Y=-x+12

We know y=-x+12, so we will substitute that for the y in the second equation.

1. Substitute 5x+3(-x+12)=50

2. Distribute 5x-3x+36=50

3. Solve 2x+36=50

2x=14

X=7

Now that we have found x, we will find y by substitute the x in 5x+3y=50 with the value, 7, that we found for x.

5(7)+3y=50

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What number does these numbers share -21,22,65?
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Answer:

uh cuz

Step-by-step explanation:

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