Take 28% of 500 which is 140 then add that to 500.
The answer is 640.
Answer:

Step-by-step explanation:


We are going to do a replacement of x for a second equation
So instead

in the place of x we are putting 12-y from the first equation, so

To leave the brackets we need to do multiplication

Which is


How to determine x? From the first equation:
If the x +y = 12 then the x = 12-y so x = 12-7 = 5
We should write solution as a pair:

X = 63 because they are complementary angles same degree! :) please mark brainliest
Answer:
square root of 44
Step-by-step explanation:
Answer:
Sabrina bought 3 pounds of bananas.
Step-by-step explanation:
Given equations are:
a + b = 8 Eqn 1
0.95a + 1.10b = 8.05 Eqn 2
As we have to find the number of pounds of bananas bought, we will eliminate the variable a from the equation.
Multiplying Eqn 1 by 0.95
0.95(a+b=8)
0.95a+0.95b=7.60 Eqn 3
Subtracting Eqn 3 from Eqn 2
(0.95a+1.10b)-(0.95a+0.95b)=8.05-7.60
0.95a+1.10b-0.95a-0.95b=0.45
0.15b = 0.45
Dividing both sides by 0.15

Hence,
Sabrina bought 3 pounds of bananas.