Answer:
<h2>
11.11 square yard </h2>
Step-by-step explanation:
Step one:
given data
charges=$90
installation=$9 per square yard
total cost of installation= $810
let x represents the number of square feet
Step two:
The expression for the installation cost is given as
810=9x+90------------1
solve for x, collect like terms
810-90=9x
720=9x
divide both sides by 9 we have
x=720/9
x=11.11 square yard
Answer:
1. x=10
2.x=8
3.x=10
4.x=5
Step-by-step explanation:
Plug in the x values below into the questions and what ever works is the answer so make the left side equal the right side
Dana made 96 strides.
Step-by-step explanation:
Given,
Ratio of Sally's stride to Dana's strides = 5:4
Strides made by Sally = 120
Let,
x be the strides made by Dana.
Ratio of Sally to Dana = 120:x
Using proportion;
Ratio of Sally's stride to Dana's stride :: Ratio of Sally to Dana

Product of mean = Product of extreme

Dividing both sides by 5

Dana made 96 strides.
Keywords: ratio, proportion
Learn more about proportion at:
#LearnwithBrainly
Answer: 3/6
Step-by-step explanation:
Calculation steps:
2
3
+
3
6
=
2 × 2
3 × 2
+
3
6
=
4
6
+
3
6
=
4 + 3
6
=
7
6
=
1 1
6