8n-20=15+n
n=5
20 less than 8 times a number = 8(n)-20 same as (=) 15 more (+) than a number(n) 15+n
Answer:
Step-by-step explanation:
the last one
Answer:
a. 16
Step-by-step explanation:
Triangles = 180 degrees
180 - 80 = 100
100 = (4x - 4) + (0.5x + 32)
4x - 4 + 0.5x + 32 =100
(4x + 0.5x) +(-4 + 32) = 100
4.5x + 28 = 100
4.5x + 28 -28 = 100 - 28
4.5x = 72
4.5x/4.5 = 72/4.5
x = 16
Answer:
x=-8
Step-by-step explanation:
-1.6/-4.8=1/3
1/3=?/-24
24/3=8
1*8=8
The age of a person whose maximum pulse is 152 is 30 years old.