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zheka24 [161]
3 years ago
9

Rock can read 10 books in 30 minutes.how long does it take rock to read 15 books,if the speed is consistant.

Mathematics
2 answers:
vazorg [7]3 years ago
7 0
10book=30mins
divide 10
1book=3mins

time=(time to read 1 book) times (number of books)
time to read 1 book=3 mins
15 books
15 books=15 times 3mins
15books=45mins

45 mins
cricket20 [7]3 years ago
3 0
45 since 30/10=3 so he reads one book in 3 minutes, Therefore, 15 x 3=45
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8. What is the solution to the equation 3x + 5(4x-6)-8= 3x - 14? a. x = 1 b. r = 1.7 d. There are no solutions to this equation.
Verdich [7]

3x+5(4x-6)-8=3x-14

Step-by-step explanation:

Cancel out the terms on both sides of the equation. (3x)

5(4x-6)-8=-14

Distribute 5 through the parentheses.

20x-30-8=-14

Calculate the difference.

20x-38=-14

Move the constant to the right-hand side and change its sign.

20x=-14+28

Calculate the sum.

20x=24

Divide both sides of the equation by 20.

x=6/5, 1.2, or 1 1/5

Answer:

x=6/5, 1.2, or 1 1/5

Hope this helps! :)

6 0
3 years ago
3/5×2/7×2/3<br> Please fallow
olga55 [171]

Answer:

\frac{12}{105}

Step-by-step explanation:

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\frac{12}{105}

6 0
3 years ago
What is the first step to solve this equation: -3x + 11 = 44​
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otez555 [7]

Answer:

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Step-by-step explanation:

8 0
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