Answer:
20
Step-by-step explanation:
The two given and marked angles add up to 90.
A = x
B = 3x + 10
A + B = 90 Substitute for A and B. A and B are just letters I gave things.
x + 3x + 10 = 90 Combine the left
4x + 10 = 90 Subtract 10 from both sides.
4x +10-10 = 90-10 Combine
4x = 80 Divide by 4
4x/4=80/4
x = 20
Answer:
B
Step-by-step explanation:
Answer:
20/sin 100=x/s 20
x=(20s 20)/100
x=6.95 feet
The answer is 6.95 feet
Step-by-step explanation:
Answer: 21
steps:
1) 6(4) - 3
2) 24 - 3
3) 21
Answer:
y = 10
Step-by-step explanation:
40 = 4y
y = 40 : 4
y = 10
