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dem82 [27]
3 years ago
12

Please help freshman math much-needed

Mathematics
2 answers:
Damm [24]3 years ago
5 0
You can make the equatin: y=15x+22
X is the number of weeks
Y is the total amount of money needed

Plug in 120 for y and solve for x
120=15x+22
98=15x
x=6.53

But the answer is 7 weeks because we have to round up so he gets paid for the whole week
Oxana [17]3 years ago
5 0
Here you go :) hope it helped
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Explain why the x-coordinates of the points where the graphs of the equations y = 2−x and y = 8x+4 intersect are the solutions o
Luda [366]
Part 1)
We have two lines:  y = 2-x   and   y = 8x+4
Given two simultaneous equations that are both required to be true.
the solution is the points where the lines cross
Which is where the two equations are equal
Thus the solution that works for both equations is when
2-x = 8x+4
because
where that is true is where the two lines will cross and that is the common point that satisfies both equations.

Part 2) Make tables to find the solution to 2−x = 8x+4. take the integer values of x between −3 and 3

see the attached table
The table shows that none of the integers from [-3,3] work because in no case does
<span>2-x = 8x+4
</span>
To find the solution we need to rearrange the equation to the form x=n
2-x =8x+4
8x+x=2-4
9x=-2
x=-2/9

 The only point that satisfies both equations is
where
 x = -2/9
Find y:
   y = 2-x  = 2 - (-2/9) = 2 + 2/9 = 20/9
Verify we get the same in the other equation
y = 8x+4   =  8(-2/9) + 4 = 20/9 
Thus the only actual solution, being the point where the lines cross,
 is the point (-2/9, 20/9)------> (-0.22,2.22)

Part 3) how can you solve the equation 2−x = 8x+4 graphically?
<span>The point on the graph where the lines cross is the solution to the system of equations
</span>
using a graph tool
see the attached figure

the solution is the point (-0.22,2.22)

4 0
3 years ago
Geno signed up for a text messaging plan. He pays a $5.00 monthly fee and $0.04 per text message.
Marysya12 [62]

Answer:

The correct answer is [C.) 0.04r + 5.00}

Step-by-step explanation:

hope this hlps

7 0
3 years ago
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Hannah has 67.32 centimeters of wire. She uses 2 pieces of the wire.
mojhsa [17]

Answer:

38.46 (Rounded: 38.5)

Step-by-step explanation:

67.32-2(14.43)=38.46

3 0
3 years ago
Pascale leaves the office to go home. She walks 12 blocks due north and then 9 blocks due west. How far is she from the office?
Stells [14]

Answer:

15 blocks

Step-by-step explanation:

We can use the Pythagorean theorem to solve the right triangle

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12^2 + 9^2 = h^2

144+81 = h^2

225= h^2

Taking the square root of each side

sqrt(225) = sqrt(h^2)

15 = h

7 0
3 years ago
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I need some heeelp please
VARVARA [1.3K]

Answer:

Min:  3

Q1:  7

Med:  10

Q3:  13

Max:  16

Step-by-step explanation:

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