Answer:
x = 4
Step-by-step explanation:
Subtract 1 from both sides:
10x = 40
Divide both sides by 10:
x = 4
Answer:
7
Step-by-step explanation:
a right angle is 90 degrees so
90=76+2x subtract 76 from both sides
-76 -76
________
14=2x divide 2 from both sides
_ ___
2 2
7=x
Check:
76+(2*7)=90 correct
Answer: 20 tests
Step-by-step explanation: She does every test in 2 1/2 mins. So she can do 20 in 50 mins.
Answer:
AD=AB
Step-by-step explanation:
3x-5=x+1
It's a square
You solve for x then plug it back in
Answer: 9 telephones Hope this helps, please consider making me Brainliest.
Step-by-step explanation:
This is basically division, so 3 3/8 = 27/8.
27/8 divided by 3/8 = 9.
Therefore, Rob needs 9 telephones.
Hope this helps, please consider making me Brainliest.
