Let the number of 30 pound boxes represented by =x
Let the number of 20 pound boxes be represented by =y
As given, there are 64 boxes so equation is:
or ..... (1)
Total weight is 1400 pounds so equation becomes
...............(2)
Plug in the value of in 2nd equation
and
Hence, the number of boxes for delivery that weigh 20 pounds is 52.
Answer:
80%
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
53 + 44 + x = 180
97 +x = 180
x = 83
|Ω| = 6 - number of all results
A = {1, 3} → |A| = 2 - number of (a) results
P(A) = 2/6 = 1/3
Answer:
b = 9√5 (see below)
Step-by-step explanation:
Using the Pythagorean Theorem, you can find the missing side. The two sides connect to the right angle are the legs, and the sloping side across from the right angle is the hypotenuse.
We know that:
a² + b² = c²
—where a and b are legs and c is the hypotenuse.
Plug in the known values:
a² + b² = c²
18² + b² = 27²
324 + b² = 729
b² = 405
√b² = √405
b = √81 √5
b = 9√5