Answer:
First: $65
Second: $115
Step-by-step explanation:
We write equations for each part of this situation.
<u>The Total Charge</u>
Together they charged 1550. This means 1550 is made up of the first mechanics rate for 15 hours and the second's rate for 5 hours. Lets call the first's rate a, so he charges 15a. The second's let's call b. He charges 5b. We add them together 15a+5b=1550.
<u>The Sum of the Rates</u>
Since the first's rate is a and the second is b, we can write a+b=180 since their sum is 180.
We solve for a and b by substituting one equation into another. Solve for the variable. Then substitute the value into the equation to find the other variable.
For a+b=180, rearrange to b=180-a and substitute into 15a+5b=1550.
15a + 5 (180-a)=1550
15a+900-5a=1550
10a+900-900=1550-900
10a=650
a=$65 was charged by the first mechanic.
We substitute to find the second mechanic's rate.
65+b=180
65-65+b=180-65
b= $115 was charged by the second mechanic
The answer is 4
Since 3.3x 4 is 13.2 and plus 3.0 is 16.2
Answer:
f(4) = 0
Step-by-step explanation:
f(4) means what is the value of y when x = 4
Now x = 4 is on the x- axis, where y = 0, thus
f(4) = 0
The model which model the dimensions of the bed has been attached.
- The perimeter and area of the bed is 10 feet and 24 square feet respectively.
- The perimeter of your bed is less than the perimeter of the items, so not all items can be underneath your bed.
<h3>What is the perimeter and area of the bed?</h3>
- Length of the rectangle = 6 feet
- Width of the rectangle = 4 feet
Perimeter of the bed = 2(length + width)
= 2(6 + 4)
= 2(10)
= 20 feet
Area of the bed = Length × width
= 6 feet × 4 feet
= 24 square feet
- Perimeter of the suitcase = 14 feet
- Perimeter of Lego box = 10 feet
- Perimeter of memory box = 10 feet
- Perimeter of stash = 6 feet
Total perimeter = 14 + 10 + 10 + 6
= 40 feet
Therefore, the items listed can not all be underneath your bed because the total perimeter of the items is greater than the perimeter of your bed.
Read more on perimeter of a rectangle:
brainly.com/question/24571594
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