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scoray [572]
3 years ago
13

What's the answer for 2 and 3

Mathematics
1 answer:
Lorico [155]3 years ago
5 0
To find the unit rate you do distance ÷ time
16 miles ÷ 2 hours = 18
To find the time you do distance ÷ unit rate
20 miles ÷ 18 = 1.1
To find the distance you do time • unit rate
3 hours • 18 = 54

2) 1.1, 54, 1.8, 90, 27
3) 48, 3, 30, 2, 1
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What is the value expression for |-8|
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Answer:

8

Step-by-step explanation:

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3 years ago
Write in expanded form 72.864
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Answer:

70 + 5 + 8/10 + 6/100 + 4/1000

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7*10 + 5*1 + 8*1/10 + 6*1/100 + 4*1/1000

5 0
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Please help<br>what is the solution to the system? Use substitution<br> y=x+5 <br>-2x+12=y
Novay_Z [31]
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3 years ago
Brainliest, thanks, five stars
lutik1710 [3]

Answer:

Option C) 16(0.5x - 0.75y + 2)

Step-by-step explanation:

16(0.5x - 0.75y + 2) = 16*0.5x - 0.75y*16 + 2 *16

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5 0
3 years ago
The algebraic expression 0.07d^3/2 describes the duration of a storm, in hours, whose diameter is d miles. use a calculator to d
Shkiper50 [21]

Answer:

  1.30 hours

Step-by-step explanation:

Put the given number in the formula and do the arithmetic. The value of "d" is given as 7, so you are evaluating the expression ...

  duration = 0.07×7^(3/2) . . . . put 7 where "d" is in the expression

  = 0.07×18.520 . . . . . . . . . . . . evaluate 7^(3/2)

  = 1.2964 . . . . . . . . . . . . . . . . . do the multiplication

  ≈ 1.30 . . . . rounded to hundredth

The duration of a storm 7 miles in diameter is predicted to be 1.30 hours.

___

With a suitable calculator, this can all be done at once.

6 0
3 years ago
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