Answer:
x=1
Step-by-step explanation:
34=12+12+5x+5x
34=24+10x
10=10x
x=1
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
Hello Myeisha91!
First we need to find how many inches in total to wrap 4 boxes. We do that by multiplying 18 x 4 = 72 so Jena needs 72 inches. The question wants to know how many yards so we need to convert 72 inches into yards. We can convert inches to yards by using a conversion factor. We know that 1 inch = 0.0277778 yd. Now that we know 1 inch = 0.0277778 yd, lets convert the 72 inches to yards.
We convert 72 in to yards by multiplying 72 in by


So Jenna will need 2 yards to wrap 4 boxes.
Answer:
c.
Step-by-step explanation:
Hello there!
9 - 12r > -99
-12r > -108
r

9 is your first inequality.
-2r - 4 < -12
-2r < -8
r

4 is your second inequality.
I hope this helps!