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krok68 [10]
4 years ago
15

You can work no more than 60 hours each week at your two jobs. Dog walking pays $7 per hour and your sales job at

Mathematics
1 answer:
Ilia_Sergeevich [38]4 years ago
8 0

Answer:

The ordered pair (-3,50) is not a possible solution, because the number of hours cannot be a negative number

The solution in the attached figure

Step-by-step explanation:

Let

x-----> the number of hours worked to dog walking job

y ----> the number of hours worked to Computers & More, Inc job

we know that

x+y\leq60 -----> inequality A

7x+12y \geq 450 ----> inequality B

using a graphing tool

The solution is the triangular shaded area

see the attached figure

The ordered pair (-3,50) is not a possible solution, because the number of hours cannot be a negative number

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The area of a rectangular wall of a barn is 252 square feet. Its length is 10 feet longer than twice its width. Find the length
valentinak56 [21]

Answer: Length = 28 feet and width = 9 feet

Step-by-step explanation:

Let x = width of the wall.

Then, Length of the wall =  10+2x

Since , Area of rectangle = length x width

Then, as per given,

252= (10+2x)x\\\\\Rightarrow\ 252=10x+2x^2\\\\\Rightarrow\ 2x^2+10x-252=0\\\\\Rightarrow\ x^2+5x-126=0\\\\\Rightarrow\ x^2+14x-9x-126=0\\\\\Rightarrow\ (x+14)-9(x+14)=0\\\\\Rightarrow\ (x+14)(x-9)=0\\\\\Rightarrow\ x=-14 \ or \ x= 9

Since width cannot be negative , so x = 9

So width = 9 feet and length = 10+2(9)=10+18 = 28 feet

Hence, length is 28 feet and width is 9 feet of the wall of the barn.

7 0
4 years ago
What does congruent mean
Vikentia [17]

The definition of congruent is:

~In agreement or harmony.

Hope this helps!!!

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4 years ago
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31% of what number is 25?​
melamori03 [73]

Uhh, I think it is 80.65

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3 0
3 years ago
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The volume of a cube depends on the length of its sides. This can be written
White raven [17]

Answer:

Step-by-step explanation:

The given question is that the volume of a cube depends on the length of its sides.This can be written in function notation  as v(s). What is the best interpretation of v(3)=27.

Solution:

According to the question the volume of a cube depends on the length of its sides. According to the statement we will apply the formula of volume of a cube.

V(s)=s³

In this question we have given s=3ft.

So, we will put the value of 's' in the formula.

V(s)=s³

V(3)=3³

Multiply 3 three times to get the answer.

V(3)=3*3*3

V(3)=27 ft³

This means that the cube has a volume of 27ft³ with the length of its sides 3ft....

8 0
4 years ago
Please help, will mark you as brainleist!!!
svet-max [94.6K]

Answer:

(1.) 50 (2). 112.5

Step-by-step explanation:

multiply the both sides and then divide ( for each one)

8 0
3 years ago
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