4x = 2x + 30 Alternate angles in parallel lines are equal
2x = 30
x = 15
solution is (4, - 7 )
given the equations
y = 2x - 15 → (1)
4x + 3y = - 5 → (2)
substitute y = 2x - 15 into (2)
4x + 3(2x - 15) = - 5
4x + 6x - 45 = - 5
10x - 45 = - 5 ( add 45 to both sides )
10x = 40 ( divide both sides by 10 )
x = 4
substitute x = 4 into (1) for corresponding value of y
y = (2 × 4 ) - 15 = 8 - 15 = - 7
solution is (4, - 7 )
Step-by-step explanation:
Count the family first
- $15x3=$45
- $3.50x2=$7
- $45+$7=$52
He will have to pay$52
Answer:
Step-by-step explanation:
<u>Here are the steps on how we will solve this problem.</u>
- Step 1: Divide the shape into squares and rectangles.
- Step 2: Find the area of all squares and rectangles
- Step 3: Sum up all the areas to get your final answer.
Now, let's follow the steps. Please consider looking at the picture I uploaded. Looking at the picture, we can tell that the area is 70 + 32 + 15. Now, let's solve.
- 70 + 32 + 15
- => 102 + 15
- => 117 in²
Hence, the area of the shape is 117 in².