Answer:
the first field (rate 3/4) has 32 square yards and the second field (rate 2/3) has 24 square yards.
Step-by-step explanation:
With the statement we can make a system of 2x2 equations, where:
"x" is the area of the first field
"y" is the area of the second field
However,
x + y = 56 => x = 56 - y
3/4 * x + 2/3 * y = 40
replacing we have:
3/4 * (56 - y) + 2/3 * y = 40
42 - 3/4 * y + 2/3 * y = 40
-0.0833 * y = 40 - 42
y = -2 / -0.0833
y = 24
now for x:
x = 56 - 24
x = 32
This means that the first field (rate 3/4) has 32 square yards and the second field (rate 2/3) has 24 square yards.
Answer:
Jane drives at an average speed of 45 mph on a journey of 135 miles. How long ... by speed. 135 miles ÷ 45 mph = 3 hours ... of 8 mph. If he cycles for 6½ hours, how far does he travel? ... in 4 hours. (a) What is her average speed for the first part of the journey? ... (a) What is average speed of the car in miles per hour? mph.
Step-by-step explanation:
R=1v+h([pi]h^2) all over 3
21x-9+63=180
21x+54=180
21x=126
x=6
Answer:
$2800
Step-by-step explanation:
5% = 0.05 --> 0.05 * 56000.00 = 2800
