6 + 4x = 156
4x = 150
X = 37.5
Answer:
Martha ran at 12 miles per hour for x amount of time
Step-by-step explanation:
Answer:
22.4
Step-by-step explanation:
using altitude theorem, the height of the triangle is 20
let y = height
10/y = y/40
y² = 400
y =
or 20
Now we can us the Pythagorean Theorem to find 'x':
10² + 20² = x²
100 + 400 = x²
x=
≈ 22.4
Answer:
10 is the only one i'm pretty sure
Step-by-step explanation:
Because < is the less than symbol and 10 is the only number less than 10.5