Answer:
S=a^2
Step-by-step explanation:
Note all sides of a square are equal, and the formula for finding the area is length x width of which the length=a and the with =a. So S=a^2.
Answer:
7.50 + 0.12x = 13.02
Charlene spent 46 min on the phone last month
Step-by-step explanation:
First you would do 13.02 - 7.50 = 5.52
Secondly you would do 5.52/0.12 = x
this will give you x= 46
Answer:
4yards
Step-by-step explanation:
4ft×3=12ft
1yrd=3ft
12ft÷3ft=4yards
184 milliliters of the first brand and 46 milliliters of the second brand
Step-by-step explanation:
Step 1:
Let x be the number of milliliters of the first brand in the final mixture
Since the chef requires 230 milliliters, 230 - x would be the milliliters of dressing of the second brand
Step 2:
The first brand contains 6% vinegar, and the second brand contains 11% vinegar
Hence we have,
x * 6/100 + (230-x) * 11/100 = 230 * 7/100
0.06 x + 25.3 - 0.11 x = 16.1
0.05x = 9.2 => x = 184
Hence the 184 milliliters of the first brand is to be used
Step 3 :
Quantity of the second brand to be used is 230 - x = 230 -184 = 46 milliliters.
Answer:
Step-by-step explanation:
9y + 12 = 4y - 10
Sub. 4y from both sides
5y + 12 = 10
Sub. 12 from both sides
5y = -2
Divide 5from both sides
y = -2/5
Substitute -2/5 into 4y - 10
