Answer:
∠ QPR = 90°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
120° is an exterior angle of the triangle , then
∠ QPR + ∠ PQR = 120° , that is
∠ QPR + 30° = 120° ( subtract 30° from both sides )
∠ QPR = 90°
Answer:
The herd migrated a total of 43 3/10 miles and migrated about 14 13/30 miles a day.
Step-by-step explanation:
11 9/10 + 17 1/5 + 14 1/5 =
11 9/10 + 17 2/10 + 14 2/10 =
29 1/10 + 14 2/10 =
43 3/10
43 3/10 divided by 3/1 =
433/10 x 1/3 =
433/30 =
14 13/30
Answer:
a. 80.25
b. 104
Step-by-step explanation:
For (a), you add all the numbers together and divide by 4 because there are 4 test scores.
87 + 92 + 63 + 79 ÷ 5 = 80.25
For (b), we need to set up an equation. It is going to be a similar concept.
87 + 92 + 63 + 79 + x ÷ 5 = 85
x = 104
Hope this helps!
Step-by-step explanation:
10000-(10000n/20) = 10000 - (500n)
6500 = 10000 - 500n
3500 = 500n
n = 7