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vovangra [49]
3 years ago
13

Solve the equation y-x=17 y=4x+2

Mathematics
1 answer:
gogolik [260]3 years ago
4 0
Y-x =17
y = -x + 17

substitute this into the second equation

y = 4x + 2
-x + 17 = 4x + 2
0= 5x -15
15/5 = 5x/5
3 = x
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15% of what number is 4.5?
notsponge [240]
4.5/0.15=30
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8 0
4 years ago
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What are the coefficients in the expression 24x-3y+7z?
kirza4 [7]

So, the coefficients are 24, -3, and 7. The letters next to the coefficients are called "variables".

4 0
3 years ago
Y - 3 = -2 ( x + 5 ) in standard form
agasfer [191]

Answer:

2x + y = -7

Step-by-step explanation:

Standard form is Ax + By = C

A represents the coefficient with x

B represents the coefficient with y

C represents the constants

1 - Rewrite to make it easier to work it out

y - 3 = -2 ( x + 5 )

2 - Distribute

y - 3 = -2x - 10

3 - Get the variables on one side and the constants on the other

y - 3 = -2x - 10

+ 2x  + 2x

2x + y - 3 = -10

         + 3   + 3

2x + y = -7

Hope this helps,

7 0
3 years ago
What is the range of the function f(x)=3x−1f(x)=3x-1 when the domain is {-1, 0, 1}?
Triss [41]
<span>f(x)=3x−1

</span><span>domain is {-1, 0, 1}

3(-1) -1 = -4
3(0) - 1 = -1
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Range { -4,  -1,  2}</span>
4 0
3 years ago
Hannah has to make 25 gallons of punch for a potluck. The punch is made of soda and fruit drink. The cost of the soda is $1.79 p
Rus_ich [418]

Answer:

Hannah needs 10 gallons of soda and 15 gallons of fruit drink

Step-by-step explanation:

Let

x -----> the number of gallons of soda needed

y ----> the number of gallons of fruit drink needed

we know that

x+y=25 -----> equation A

1.79x+2.49y=2.21(25)

1.79x+2.49y=55.25 -----> equation B

Solve the system by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The solution is the point (10,15)

see the attached figure

therefore

Hannah needs 10 gallons of soda and 15 gallons of fruit drink

3 0
3 years ago
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