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4 years ago

If you run a mile in 12 minutes, how fast are you running in miles per hour?

1 answer:

8 0

1 mile in 12 minutes
x miles in 60 minutes

$\frac{1}{12} = \frac{x}{60}\\\\12x = 60(1)\\\\x = 5$

You are running at 5 miles per hour.

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I need an answer please! The question says Find the value of x that would make the following expression equivalent to sixteen ti

aev [14]

Square root of 6 times 16 will give us 39.19

The square root of 48 times 32 [which gives us 1536] is also equal to 39.19

The square root of 1536 is equal to 39.19

Hence, x is equal to 32

Hope this helped! :D

8 0

3 years ago

What is 4X + 7y =14 in y=form

nydimaria [60]

Answer: y=2

Step-by-step explanation:

5 0

4 years ago

Heather left the hospital and drove toward the desert at an average speed of 35 km/h. Danielle left sometime later driving in th

elena55 [62]

Answer:

Danielle drove 3 hours

Step-by-step explanation:

Suppose Heather moved in the x direction.

Then Danielle moved in the opposite direction, that is, she moved in the -x direction.

Let's call $V_1$ , $x_1$ , $t_1$ at the speed, distance and time that I code Heather

Let's call $V_2$ , $x_2$ , $t_2$ at the speed, distance and time Danielle codes.

Observe the following diagram:

(x) Heather <------ $x_1$ --------- hospital ---------- $x_2$ -----------> Danielle (-x)

So:

$V_1 = 35\ km/h$

$t_1 = 4\ h$

$V_2 = 50\ km/h$

We know that after 4 hours the distance between Heather and Danielle was 290 km.

That is to say:

$x_2 + x_1 = 290\ km/h$

We know that $x_1= v_1t_1$

$x_1 = 35(4)$

$x_1 = 140\ km$

We already know $x_1$ , the distance from the hospital to Heather, so we can find $x_2$ and thus know $t_2$

So:

$x_2 = 290 - 140\\\\x_2 = 150\ km$

Then:

$t_2 = \frac{x_2}{v_2}\\\\t_2 = \frac{150}{50}\\\\t_2 = 3\ h$

7 0

3 years ago

A man left one-third of his property to his son, one-fourth to his daughter and the remaining rupees 20000 to his wife. How much

Tasya [4]

Answer:

48000 rupees

Step-by-step explanation:

1/3+1/4=7/12. This means that the 20000 rupees are 5/12 of his whole fortune. Therefore, 20000÷5×12=48000 is the left money.

4 0

3 years ago

Read 2 more answers

Can someone help me out

77julia77 [94]

Answer:

slope= 2

Step-by-step explanation:

Rise refers to how many units the slope "rises" before it "runs" to get to a value on the line. The rise is 2 and the run is 1 therefore your slope is 2/1 or 2. hope this helps.

3 0

3 years ago

Read 2 more answers