Answer:
50.6
Step-by-step explanation:
it says 7 students traveled by car so you need to take 7 from 311, then divide your answer (304) by 6, which is 50.6
Answer:
t ≤ 11 (or all values 11 or less)
Step-by-step explanation:
8t - 9 ≤ 79
<em>So, I am assuming you are trying to find the value(s) of "t".</em>
Add 9 to both sides.
8t ≤ 88
Divide 8 by both sides.
t ≤ 11
ANSWER
t ≤ 11
Answer:
27
Step-by-step explanation:
You add 63 and 90 (90 being the right angle) and then subtract that from 180 which is the sum of all three angles and you get 27.
Answer:
x² + y² = 85
Step-by-step explanation:
Using the expansion
(x - y)² = x² + y² - 2xy , then
x² + y² - 2xy = (x - y)² ( add 2xy to both sides )
x² + y² = (x - y)² + 2xy ← substitute given values
= 9² + 2(2)
= 81 + 4
= 85
