Given:
8000 homes
color flyers : $0.08 each
black and white flyers : $0.05 each
budget of $500
c + b = 8,000
0.08c + 0.05b = 500
c = 8,000 - b
0.08(8,000 - b) + 0.05b = 500
640 - 0.08b + 0.05b = 500
-0.03b = 500 - 640
-0.03b = -140
b = -140 / -0.03
b = 4,667 black and white flyers
c = 8,000 - b
c = 8,000 - 4,667
c = 3,333 colored flyers
0.08(c) + 0.05(b) = 500
0.08(3,333) + 0.05(4,667) = 500
266.64 + 233.35 = 500
499.99 = 500
500 = 500
Answer: Multiply by 3 in everyone
Step-by-step explanation: 4 times 3 is 12 5 times 3 is 15 6 times 3 is 18 and 7 times 3 is 21
The answer is <span>He subtracted 10 from the right side instead of adding 10 to the right side
Let's solve it:
</span><span>2x + y = 5
x − 2y = 10
________
Rearrange first equation to get y:
y = 5 - 2x
________
Substitute y into the second equation:
x - 2(5 - 2x) = 10
________
Multiply the terms:
x - 10 + 4x = 10
________
Combine the terms:
5x - 10 = 10
________
Add 10 on the both sides of the equation:
5x = 10 + 10
5x = 20
x = 4</span>
Answer:
72 students
Step-by-step explanation:
If 48 is the total of 2/3 of the drama club, that must mean 1/3 of the drama club is 24. To follow on this pattern, you add: 24+48=72.
Equation:
1/3 + 1/3 + 1/3 = 24 + 24 + 24 = 72
5,12,13 because a squared + b squared = c squared. 25 + 144 = 169 and 13 squared equals 168
