Answer:
15
Step-by-step explanation:
just cause
Let w bet the number of white cars and y the numbers of yellow cars.
"Rafael counted a total of 40 white and yellow cars" So w+y = 40.
"There were 9 times as many white cars as yellow cars" So 9Y = W
We get the system:
w+y=40 (1)
9y=w (2)
In equation (1), let's replace w by it's value from equation (2) since w=9y.
We get: 9y+y = 40
10y=40
y=4
So there's 4 yellow cars.
In equation (1), let's replace y by it's value
w+4=40
w=40-4
w=36
Rafael counted 36 white cars.
You can re-check your answer:
4+36=40 (w+y=40)
9*4=36 (9y=w)
The answer has been approved.
Hope this Helps! :)
Answer:
I believe the answer would be 8 1/4 cups.
Hope this helps!
Answer:
1/5
Step-by-step explanation:
Total marbles = 20
Black marbles = 10
(10/20) x (4/10)
= (1/2) x (2/5)
= 2/10
= 1/5
Answer
A
Step-by-step explanation:
$\mathrm{Convert\:mixed\:numbers\:to\:improper\:fractions}:\quad6\frac{2}{3}=\frac{20}{3}$
=8\div \frac{20}{3}
=\frac{8}{1}\div \frac{20}{3}
=\frac{8}{1}\times \frac{3}{20}
=\frac{2}{1}\times \frac{3}{5}
=\frac{2\times \:3}{1\times \:5}
=\frac{6}{1\times \:5}
=\frac{6}{5}
Convert improper fractions to mixed numbers
=1\frac{1}{5}
Brainliest plz
