Answer:
Step-by-step explanation:
Tex wants to make a lawn in the front of his house. The total yards are 30 by 30 yards. This means that the total area of the lawn is
30 × 30 = 900 yards^2
he gets 20 by 10 yards. This means that the total area of what he got would be
20 × 10 = 200 yards^2
Since what he needs is 900 yards^2 and it is greater than what he got, 200 yards^2, then it won't be enough.
What he needs more would be
900 - 200 = 700 yards^2
The question asks for the unit rate when 1/4 of a kilometer is covered in 1/3 of an hour.
Recall that rate is the quotient of two quantities. In our case the numerator is the distance (1/4) of a kilometer, and the denominator is the time: 1/3 of an hour.
So, we perform the following division of fractions:
1/4 diided by 1/3 which is the same as: 1/4 times 3/1 = 3/4
and since we are asked for the UNIT rate, we do the actual division:
The unit rate is 0.75 km per hour.
Answer:
5/9
Step-by-step explanation:
F(-2)for f(x)=5•3^x
Let x = -2
f(-2)=5•3^(-2)
= 5 * 1/3^2
= 5 * 1/9
= 5/9