The GCF for 45 and 60 is 15
Ask a teacher or look it up or use a text book
I believe the answer is
7(1)-1 =6
7(2)-1 =13
7(3)-1 =20
7(4)-1 =27
7(5)-1 =34
Answer:
A belt costs $15 and a wallet costs $27.
Step-by-step explanation:
Let's mark price of a belt with x and price of the wallet with y. That leaves is with a system of equations:
x + y = $42
7x + 4y = $213
The goal when solving this system is to get rid of one of the variables. We can do that by multiplying first equation with -4:
-4x - 4y = -168
7x + 4y = 213
Now, we simply add these two equations up:
-4x - 4y + 7x + 4y = -168 + 213
3x = 45
x = $15
Now, we plug in x into any of the two starting equations to find y:
x+y=42
15 + y = 42
y = $27
Answer: 22.2, 22,200
Step-by-step explanation: I believe that the comma was supposed to be a decimal, if so the first one is your answer, if its supposed to be a comma, is is the second one.