Peter drive 320 miles in 8 hours . calculate his average speed .

Mathematics

2 answers:

Ad libitum [116K]3 years ago

6 0

Answer: 40

Step-by-step explanation:

You will take the miles he drove and divided it by the time it took him to get there

320/8=40

noname [10]3 years ago

6 0

Peter drive 320 miles in 8 hours . calculate his average speed .

The formula is Speed = Distance over Time. So 320 divided by 8 which is 40. So speed = 40

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<h3><u>Solution:</u></h3>

Let "f" be the cost of each flower

Let "b" be the cost of each bush

<em><u>Given that Mrs. Kelly buys 15 flowers and 3 bushes for a total cost of $160.32</u></em>

15 flowers x cost of each flower + 3 bushes x cost of each bush = 160.32

$15 \times f + 3 \times b = 160.32$

15f + 3b = 160.32 ----- eqn 1

<em><u>Each bush costs $11.50 more than each flower</u></em>

Cost of each bush = 11.50 + cost of each flower

b = 11.50 + f ------ eqn 2

<u><em>Let us solve eqn 1 and eqn 2 to find values of "b" and "f"</em></u>

Substitute eqn 2 in eqn 1

15f + 3(11.50 + f) = 160.32

15f + 34.5 + 3f = 160.32

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3 years ago

A random draw is being designed for 210 participants. A single winner is to be chosen, and all the participants must have an equ

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Answer: The correct number of balls is (b) 4.

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We are using 10 balls, numbered through 0 to 9. We are to find the number of balls which needs to be picked up, regardless of order, so that each of the 210 participants can be assigned a unique set of numbers.

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