Answer:
z = 35
Step-by-step explanation:
-9 + z = 26
Add 9 on both sides to leave the z alone
z = 35
You can verify this by adding 35 into -9 which leads you to the answer: 26
16. 5(7)+13 /8
35+13/8
48 /8
6 is the answer for 16
17. 45+40= 85
85 is the answer
18. I don’t see 18
Answer:
good luck............................
Answer:
to start of in math you use stuff like numbers and equations although you can use equations in science in science you use different types of technology for that.
Let's put this in terms of a system of equations. Let's call the numbers x and y, with x being the larger integer and y the smaller one. Since they are consecutive odd integers, we know that:
x = y + 2
The constraint is:
xy= 3(x+y) + 71 Simplify
xy = 3x + 3y + 71 Plug in (y+2) for x:
(y + 2) y = 3(y + 2) + 3y + 71 Simplify
y² + 2y = 3y + 6 + 3y + 71 Subtract 6y from both sides, add 71+6
y² -4y = 77
y² - 4y - 77 = 0
Factor:
(y - 11) (y+7) = 0
y = 11 or y=-7
When y = 11, x = 13, since x = y+2
Plug in to make sure:
xy = 3(x+y) + 71
11*13 = 3 (11 + 13) + 71
143 = 3 (24) + 71
143 = 72 + 71
143 = 143
Our values work!
Answer: 11, 13
