Answer:
150 blue marbles
Step-by-step explanation:
1 green = 6 blue
25 green = x blue
- 6 x 25 = 150
Answer:
C
Step-by-step explanation:
To form a proportion, you need two equal ratios.
Divide the numerator by the denominator of all fractions.
Any two fractions that are equal are a proportion.
A.
4/9 = 0.4444...
9/4 = 2.25
Fractions are not equal. Not a proportion.
B.
4/10 = 0.4
10/25 = 0.4
Fractions are equal. Proportion
C.
4/11 = 0.363636...
6/13 = 0.46153846...
Fractions are not equal. Not a proportion.
D.
I can't read the fractions, but do the same I did above.
Divide each numerator by the denominator and compare the decimals. If they are equal its a proportion. If theya re not equal, it is not a proportion.
The answer is 6 inch sandwiches. You will have 7 sandwiches.
25 is our base, so, we need to find out what 19 out of 25 is what percentage. Let's just start with something a little small, like 30%
(We can experiment with different percentages using our trusty calculator)
30% of 25 = 7.5
We are way off, we need to bring it a bit higher if it is to reach 19. Let's try 67%
67% of 25 = 16.75
Not quite but close, lets try something a bit higher, like 76%.
76% of 25 = 19
So, 19 out of 25 is 76% all we need to do now is subtract that from 100 to get the remaining percentage.
100 - 76 = 24
24% of the students don't have a pet. :D
