Answer:
6% of the racers did not ocmplete the marathon
Step-by-step explanation:
290 racers
272 completed the race
15 + 3 = 18 did not complete the race
= 0.94 = 94%
= 0.06 = 6%
So there's 20, 21, 22, 23, 24, 25, 26, 27 7 numbers total
so there are 3 numbers greater then 24 which would be 3/7= 0.42857....
There is only 1 number less then 21 which would be 1/7= 0.14285....
Answer:
325
Step-by-step explanation:
Writing out the equation always makes it easier to solve:
( 21 / 7 ) + 7 + 7( 7 - 2 ) x 9
First, following the rules of P.E.M.D.A.S.
(parenthesis, exponents, multiplication, division, addition, subtraction.)
You would need to solve for the values within each parenthesis... so
(21 / 7). 21 divided by 7 is equal to 3. And in (7 - 2). 7 minus 2 is equal to 5.
The equation is now:
( 3 ) + 7 + 7( 5 ) x 9
Next you must solve for multiplication, so:
7( 5 ), 7 times 5 is 35. the equation is now:
( 3 ) + 7 + ( 35 ) x 9
Then, 35 x 9 is equal to 315. The equation is now:
( 3 ) + 7 + 315.
If you add everything together, you get the answer of:
325!!!
Use the equation to help determine the total cost.
r is given as 8, r=8
C=2.5(8)+15
C=20+15
C=35
Nina’s total cost will be $35
Hope I helped! xx