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kvasek [131]
2 years ago
10

What is the solution to the system of equations? (Hint: Use Substitution.)

Mathematics
1 answer:
Jet001 [13]2 years ago
8 0

Answer:

(-1,9)

Step-by-step explanation:

y = -3x + 6

y = 9

-3x + 6 = 9

-3x = 3

x = -1

y is already given as 9, but you can solve for y by plugging the x value into y = -3x + 6,

-3(-1) + 6 = 9

(-1,9)

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Answer:

Step-by-step explanation:

Let the cost of one soft taco = s

Let the cost of one burrito  = b

 

So  we have this system

 

3s  + 3b  = 11.25  

4s +  2b   = 10.00   (1)

 

Divide  the first equation through by 3   and we have that

 

s +  b  =  3.75         subtract  b from both sides

s   =  3.75 - b   (2)

 

Sub  (2) into (1)  and we have

 

4 (3.75 - b)  +  2b  =  10.00      simplify

15 - 4b  + 2b   = 10.00

-2b + 15  =10.00      subtract 15 from both sides

-2b  =  - 5.00         divide both sides by -2

b  = 2.50

 

And using (2)

s  =  3.75 - 2.50   =   1.50

 

 

So...  a soft taco  1.50 and a burrito is  2.50

6 0
3 years ago
Reduce -7/8 + (-1/2) to the simplest form.
ololo11 [35]

Answer:

-1.375

Step-by-step explanation:

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Gary brings a 64 ounce water jug to baseball practice everyday Gary drinks 47 ounces of water himself if he were to choose to al
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Solve the formula Ax+By = C for A.
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Answer:

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Step-by-step explanation:

Given

Ax + By = C

Required

Solve for A

The question implies that we make A the subject of the formula.

Start by subtracting By from both sides of the equation by x

Ax + By - By= C - By

Ax = C - By

Divide both sides by x

\frac{Ax}{x} = \frac{C - By}{x}

A = \frac{C - By}{x}

<em>Solved</em>

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Which point(s) are solutions to the inequality -x - 2y &gt; 3? Select all that apply.
wariber [46]
C if u need a step-by-step just comment
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