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lesya692 [45]
3 years ago
8

Solve the following system of equations: 6x - 7y = 2 2x = 3y = -10

Mathematics
1 answer:
Pepsi [2]3 years ago
3 0

Answer:

{7, -2}

Step-by-step explanation:

6x-7y=2

2x+3y= -10

multiply the second  one by -3

6x-7y=2

-6x-9x=30

-16y=32

y= -2

2x - 6 = -10

2x= -4  

x= -2

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A charity is selling brooms to raise funds. Each box has 10 brooms. Each broom is sold for $ 15 . If the charity earns $ 50 prof
Finger [1]

Answer:

Total cost= $100

Step-by-step explanation:

Giving the following information:

Each box has 10 brooms. Each broom is sold for $ 15

The charity earns $ 50 profit for each box of brooms.

<u>First, we need to calculate the total revenue per box:</u>

Total revenue per box= 10*15= $150

<u>Now, the total cost:</u>

Total cost= total revenue - total income

Total cost= 150 - 50

Total cost= $100

4 0
3 years ago
5x - 1 +5x<br> 1.1<br> 2.10x-1<br> 3.11x<br> 4.-1
Verdich [7]

Answer:

2

the answer is 2 coz it's like terms

5 0
3 years ago
Carly wants to add texting to her cell phone plan. She has two choices in texting packages. The TURKEY plan charges $.15 per tex
Usimov [2.4K]

Let x be the number of texts (amount of texts) Carly does in a month.

Let y be the "total" amount Carly will have to pay in a month.

Then, as per the TURKEY plan, Carly's monthly total cost will be represented by the equation as shown: y=0.15x+20

As we can clearly see in the above equation even if Carly does not text a single message (when x=0), even then they will have to pay $20 for that month.

For the GOBBLE plan, the equation will be: y=0.2x.

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5 0
3 years ago
Plzzzzzzzzzzzz help me
grigory [225]

Answer:

y=-3/2x+6

Step-by-step explanation:

You can find the slope by taking two points on the graph, and making the one that occurs earlier in the graph (from left to right) the first point (x1, y1) and the one that occurs later in the graph the second point (x2, y2). The equation is m (or slope)=(y2-y1)/(x2-x1). I took the first two points in the table for this. m=(12-18)/-4-(-8)

the double negative on the bottom becomes an addition=> (12-18)/(-4+8)

the top simplifies to be -6 and the bottom simplifies to 4=>-6/4

this fraction can be reduced to -3/2, which is the slope of the graph.

Now, use point slope form (y-y1=m(x-x1)) to find the equation of the graph. Plug any coordinate on the graph in for x1 and y1 here. It should be correct as long as it is a point on the graph, but I am using the point (-8, 18) here.

=>y-18=-3/2(x-(-8))

the double negative in the parentheses becomes a positive=> y-18=-3/2(x+8)

distribute the -3/2 to every term in the parentheses=> y-18=-3/2x-12

add 18 to both sides, cancelling out the -18 on the left side of the equation=>y=-3/2x+6 (-12+18=6 to get 6 for b).

Therefore, the equation is y=-3/2x+6

6 0
3 years ago
How would i go about simplifying (x+h)^3?
Sindrei [870]
H^3+3h^2x+3hx^2+x^3 should be the answer
7 0
3 years ago
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