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Blizzard [7]
4 years ago
9

The sum of two numbers is 8, and their difference is 22

Mathematics
1 answer:
lawyer [7]4 years ago
8 0

Answer:

15, -7 x=15 y=-7

Step-by-step explanation:

x+y=8, we'll come back to this

x-y=22, move y to the other side, x=y+22

now insert the value of x =(y+22) to the other equation like so, (y+22)+y=8, simplify

2y+22=8 2y=(-14), y=(-7)

Insert the value of y into the first equation again like so, x+(-7)=8, simplify

x=15

15, -7

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Pachacha [2.7K]

Answer:

Linear function

Step-by-step explanation:

Given

f(x) = -\frac{1}{4}x + 5

Required

Linear or Exponential

A linear equation has the form: f(x) = mx + c;

An exponential has the form: f(x) = ab^x

By comparing both functions to: f(x) = -\frac{1}{4}x + 5

The linear function is similar to f(x) = -\frac{1}{4}x + 5

<em>Hence, the given function is a linear function.</em>

8 0
3 years ago
Find the value of g(x)=2-x^2 and f(x)=2x-1 . f(-4)
Ivenika [448]

Answer:

f(-4) = -9

Step-by-step explanation:

f(x)=2x-1

Let x = -4

f(-4)=2*-4-1

      = -8 -1

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6 0
3 years ago
Read 2 more answers
Solve for X.<br><br> -3/2(x-2)=45/14<br><br> Please show work.
ICE Princess25 [194]

Answer:

-1/7

Step-by-step explanation:

-3/2(x-2)=45/14

x-2=(45/14)/(-3/2)

x-2=(45/14)(-2/3)

x-2=-90/42

simplify -90/42 into -15/7

x-2=-15/7

x=-15/7+2

x=-15/7+14/7

x=-1/7

7 0
3 years ago
Read 2 more answers
PLEASE HELP<br> solve for V
motikmotik

Answer:

-102.4 = v

Step-by-step explanation:

-15.9 = -3.1 + v/8

Add 3.1 to each side

-15.9 + 3.1 = -3.1+3.1 + v/8

-12.8 = v/8

Multiply each side by 8

-12.8 * 8 = v/8*8

-102.4 = v

7 0
3 years ago
37-(y-19)=2y this is a problom from rsm
ankoles [38]

Answer:

y = 56/3

Step-by-step explanation:

Distribute:

37 - (y - 19) = 2y

37 - y + 19 = 2y

Add the numbers:

37 - y + 19 = 2y

56 - y = 2y

Rearrange the terms:

56 - y = 2y

-y + 56 = 2y

Solution:

y = 56/3

8 0
2 years ago
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