Answer:
a = 5 or a = -5
Step-by-step explanation:
Answer:
4 hours
Step-by-step explanation:
Since we know he travels at a rate of 1:7.5 all we have to do is divide 7.5 by 30. Do you use proportions? You can set this up as a proportion and the find answer easily.
1
Now we cross product.
7.5 multipled by x =7.5x
1x30=30
so now we have
7.5x=30
Now we have to divide 7.5 on both sides which gives us
x=4
Answer:
c
Step-by-step explanation:
6 X 2 = 12 +5 = 17
Answer:
(a) 1:2
(b) 6 cups
(c) 
Step-by-step explanation:
(a) Given,
amount of rice mixture contains= 1 cup
amount of water mixture contains= 2 cups


So, the ratio of rice to water is 1:2.
(b) Amount of rice in mixture = 3 cups


=> amount of water in mixture = 3 x 2
= 6 cups
(c) 



So, the amount of water in the mixture will be
cup.