3 years ago

Shareen walked a total of 8.96 miles in a walk-a-thon. If her average speed was 2.8 miles per hour, how

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

3 0

Answer:

3 hours and 12 minutes

Step-by-step explanation:

8.96 ÷ 2.8= 3.2

I know that 2/10 of 60 is 12

3.2= 3hrs & 12 mins

You might be interested in

What is two rays sharing a common endpoint?

Finger [1]

Two rays sharing a common endpoint is the vertex.

7 0

4 years ago

Read 2 more answers

For the function F defined by F(x) = x2 – 2x + 4, find F(b+3).

Ivanshal [37]

Answer:

$\displaystyle F(b + 3) = b^2 + 4b + 7$

Step-by-step explanation:

We are given the function:

$\displaystlye F(x) = x^2 - 2x + 4$

And we want to find F(<em>b</em> + 3).

We can substitute:

$\displaystyle F(b + 3) = (b + 3)^2 - 2(b+3) + 4$

Expand:

$\displaystyle = (b^2 + 6b + 9) + (-2b -6) + 4$

Rearrange:

$\displaystyle = (b^2) + (6b-2b) + (9 - 6 + 4)$

Combine like terms. Hence:

$\displaystyle = b^2 +4b + 7$

In conclusion:

$\displaystyle F(b + 3) = b^2 + 4b + 7$

6 0

3 years ago

Copycats copies charges $.18 for the first copy and $.12 for each additional copy what is the greatest number of copies you can

Kazeer [188]

The greatest number of copies you can et for three dollars is 24.

4 0

4 years ago

25/2 in simplest form

diamong [38]

25/2

..........

12.5

...........

6 0

3 years ago

Read 2 more answers

A card is drawn from a standard 52 card deck.What is the probability that the card is a red 8, given that the card is an 8?

Olenka [21]

Answer:D

Step-by-step explanation:

You know that the card picked is an 8, so forget the rest of the deck (they are trying to trick you into thinking it is 2 cards out of 52 cards). So there are 4 8's in a deck. 2 are red, 2 are black. You have a 2/4 chance of pulling a red. 2/4 = 1/2

3 0

3 years ago

Read 2 more answers