Answer:
Step-by-step explanation:
Add 2 to both sides
Simplify
Subtract 
from both sides
Simplify
Multiply both sides by 
(reverse the inequality)
Simplify
Divide both sides by 
Divide the numbers: 
Divide the numbers: 
Apply fraction rule: 
Divide the numbers: 
Answer:
2x2x2x2x3x7,This is because all of that sum equals the total of
Step-by-step explanation:
2x2x2x2x3x7
Answer:
20/36 = 5/9
Step-by-step explanation:
The fraction could be represented by ( # of pages that typed / # of total pages that has to type).
So
20 is number of pages that typed
36 is the total number of pages that has to types
20/36
Answer:
87.8
Step-by-step explanation:
87 + 80 + 96 + 94 + 88 = 439
439 ÷ 5 = 87.8
Answer:
(- 1, 5 )
Step-by-step explanation:
Using the method of substitution.
Given the 2 equations
3x + 2y = 7 → (1)
x - 4y = - 21 → (2)
Rearrange (2) expressing x in terms of y by adding 4y to both sides.
x = 4y - 21 → (3)
Substitute x = 4y - 21 into (1)
3(4y - 21) + 2y = 7 ← distribute and simplify left side
12y - 63 + 2y = 7
14y - 63 = 7 ( add 63 to both sides )
14y = 70 ( divide both sides by 14 )
y = 5
Substitute y = 5 into (3)
x = (4 × 5) - 21 = 20 - 21 = - 1
Solution is (- 1, 5 )
