The Lamaster family is a family of five people. They have used 4,885.78 gallons of water so far this month. They cannot exceed 7
1 answer:
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Answer:
Step-by-step explanation:
To find the area of a rectangle you have to multiply the length by the width.
In your problem, the length and width are both equations, so you just have to multiply each part of the equation separately.
For example, if you were to put both equations with one over the other, you just have to multiply the aligned numbers.
The length is: x2 + 6x + 3
The width is: 3x2 + 4x - 2
and if you multiply the aligned numbers together, you get
3x2 + 24x - 6. Because:
x2 × 3x2 = 3x2,
6x × 4x = 24x,
and 3 × -2 = -6
Answer:
25 miles per hour
Step-by-step explanation:
Given
The joint variation can be represented as:
Where:
Required
Find V, when:
We have:
Express as an equation
Where k is the constant of variation
Make k the subject
When:
We have:
When:
We have:
Substitute: and
Make V the subject