All categories

3 years ago

Kala runs 10 miles in 85 minutes. At the same rate, how many minutes would she take to run 8 miles

1 answer:

4 0

$\text{First, lets find how many miles she can run in 1 minute}\\\\\text{To find this, divide 85 by 10}\\\\85\div10=8.5\\\\\text{Now multiply 8.5 by 8 to see how many minutes she would take:}\\\\8.5 \cdot8 = 68\\\\\text{This means that it'll take her 68 minutes to run 8 miles}\\\\\boxed{68\,\text{minutes}}$

You might be interested in

*PLEASE ANSWER, DIFFICULT QUESTION* Thomas wants to invite Madeline to a party. He has an 80% chance of bumping into her at scho

olchik [2.2K]

B or D

Either one of them

7 0

3 years ago

Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes. If 8 adult smartphone use

vovikov84 [41]

Answer:

≈ 0.2526

Step-by-step explanation:

The number of combinations of 4 out of 8:

8C4 = 8!/(4!(8-4)!)= 8*7*6*5/(1*2*3*4)= 70

Success factor is:

57% = 0.57

and failure factor is:

(100 - 57)%= 43%= 0.43

Probability:

0.57⁴*0.43⁴*70 ≈ 0.2526

6 0

2 years ago

30.54

leonid [27]

<h3>Answer: Choice 2) sin(B) = cos(90-B)</h3>

Explanation:

The rule is that

sin(A) = cos(B)

if and only if A+B = 90.

Solving for A gets A = 90-B

So we end up with

sin(90-B) = cos(B)

which is the same as

cos(B) = sin(90-B)

5 0

3 years ago

45 POINTS! PLEASE HELPPPPPPPPPPPPPP!

VMariaS [17]

Answer:

This is a direct variation where the constant of variation is 5/9

Step-by-step explanation:

The equation for direct variation is y = kx

5x-9y =0

Lets try to get this equation in the above form

Add 9y to each side

5x-9y +9y = 9y

5x = 9y

Divide each side by 9

5/9 x = 9y/9

5/9x = y

This is in the form y = k x where k =5/9

7 0

3 years ago

Simplify:

miv72 [106K]

$576 = {2}^{6} \times {3}^{2} \\ \\$
$64 = {2}^{6}$

good luck

6 0

2 years ago

Read 2 more answers