The dash on each side of the triangle show that those three sides have the same measurement. Therefore, divide 24 by 3 to get 8, which is the measurement for each side of the triangle.
Meaning your answer is:
a. 8cm, 8cm, 8cm
X = 19
8x + 11 = 5x + 68
-5x -11 = -5x -11
3x = 57
x = 19
Answer:
72
Step-by-step explanation:
80x.90= 72
Answer:
12 hours
Step-by-step explanation:
Let the number of hours Lily works each week be x.
This implies that of Olivia's is
x+4.
We were also told that for every two weeks, Olivia works a total of 32 hours.
This implies that
2(x+4)=32
We divide through by 2


We subtract 4 from both sides


Hence Lily works 12 hours each week.
Answer:
A ≈ 1900.7 m²
Step-by-step explanation:
The area (A) of the race track is
area of outer circle - area of inner circle
= πR² - πr²
= π × 63² - π × 58²
= π (63² - 58² )
= π(3969 - 3364)
= π × 605
≈ 1900.7 m² ( to 1 dec. place )