They are to make variables.
I think it's a rectangle block because the surface is flat on all the sides.
Answer:
D.5
Step-by-step explanation:
You can write the following equations from the information given:
y=x+3 (1)
11x+5y=47 (2)
x is the number of hardback books
y is the number of paperback books
You can replace (1) in (2):
11x+5(x+3)=47
11x+5x+15=47
16x=47-15
16x=32
x=32/16
x=2
Then, you can replace the value of x in (1) to find the value of y:
y=2+3
y=5
According to this, the answer is that Jamal bought 5 paperback books.
Answer:
D
Step-by-step explanation:
1 - 1/4 + 2/5 = 23/20
20/20 - 5/20 = 15/20
15/20 + 8/20 = 23/20
hope this helps! :)
