Answer:
4x + y = 43
Step-by-step explanation:
The equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
Given
y = 43 - 4x ( add 4x to both sides )
4x + y = 43 ← in standard form
Answer:
7
Step-by-step explanation:
The two parallel line indicates that the sides are proportional.
12:15, the ratio is 0.8
0.8*8.75=7
C, move the decimal point to the left according to the exponent on the 10, in this case 4 steps.
Answer: 2000/25 = 80 tiles
Step-by-step explanation:
Date: s=20
equation of surface area of a cube prism: surface area = 6s*2
the surface area to be covered with tiles is requires, the base is not included, so the equation reduces: surface area = 5s*2
subtitute values: surface area = 5(20)*2
= 5(400)
surface area = 2000
area of 2 tile is 5*2 = 25 square inches
2000/25 = 80 tiles
