Answer:
Step-by-step explanation:
Givens
Let a = the first number
Let b = the second number
Equations
a + b = 39
b = 1/2 * a + 6
Put the second equation into the first one
a + 1/2 * a + 6 = 39 Simplify the left.
(3/2)a + 6 = 39 Subtract 6 from both sides
(3/2)a + 6 - 6 = 39 - 6 Combine
(3/2)a = 33 Multiply both sides by 2
3a = 33*2
3a = 66 Divide both sides by 3
3a/3 = 66/3
a = 22
b = 1/2 a + 6
a = 22
b = 1/2 * 22 + 6
b = 11 + 6
b = 17
Check
22 + 17 = 39
Answer:
3^6
Step-by-step explanation:
it is correct answer.it will help you.
Answer:
3a-21
Step-by-step explanation:
You multiple 3 with the inside of the parenthesis. 3 time a = 3a and 3 times negative 7 is -21
If you round 38.85 to $39 then divide by 3 you'd get $13 each. This would be a little high since we rounded the 38.85 UP
Answer: 3 3/4
Step-by-step explanation:
From the question, we are informed that Jerome use 3 1/4 gallons of gasoline while driving from school to his baseball game.
Assuming that he originally had 7 gallons in his car, the amount of gasoline he have left will be:
= 7 - 3 1/4
= 3 3/4 gallons
