Answer:
Step-by-step explanation:
Stefanie's mixture of 18 grams has a 20% sugar content. Therefore, there are 
grams of sugar in her syrup.
John's mixture of 30 grams has a 25% sugar content. Therefore, there are 
grams of sugar in her syrup.
Therefore, if they mix their syrups together, there will be 
grams of sugar.
Answer:
18
Step-by-step explanation:
you always do the parenthesis first
10-7=3
6x3=18
The total cost of her haircut was 28 dollars
step by step:
(percentage) 15 x 6 = 90
4.20 x 6 =25.2
(perscentage) 15 divided by 3 = 5
4.20 divided by 3 = 1.4
1.4 + 1.4 = 2.8
25.2 + 2.8 =28
Answer:
x=18.0
Step-by-step explanation:
Answer =-0.7x +0
Find the gradient by y2-y1/x2-x1
-14 -7/ 20- -10
-21/30
-0.7
And plug in the coordinates to find the y intercept
7= -0.7 (-10) + c
C=0
