Been a bit since i’ve done this kind of problem.
X+4=20
X is the number of hours needed to work, while 4 is the hours already there.
Again, decimals and fractions represent all the values in between integers. Decimals are simply one step more of simplification from fractions.
3 and four sevenths bcs 25divided by seven is 3r4
The unit rate of the parachutist change in height is 11 feet per second.
• In Mathematics, Unitary method is a technique for solving a question by first finding the value of a single unit and then finding the required value by multiplying the number by value of single unit .
• We use unitary method to find the ratio of one thing with respect to other thing.
• There are two types of unitary method one is Direct Variation and the other is Inverse variation.
We have the rate of descend as 44 feet in 4 sec.
So, in 1 second it will be = 44 / 4 = 11 feet.
Which is the unit rate.
Therefore, the unit rate of descend for the parachutist is 11 feet per second.
Learn more about unit rate here:
brainly.com/question/19493296
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Answer:
x^2 + 2x + 1
Step-by-step explanation:
1. collect the like terms.
2. use the commutative property to reorder the terms.
