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BARSIC [14]
3 years ago
10

Someone solve this for me please

Mathematics
1 answer:
Butoxors [25]3 years ago
5 0

Answer:

x=2; y=1

Step-by-step explanation:

Since the triangle is equilateral, which means three sides have the same length.

So we have:4x-y=2x+3y=7

4x-y=2x+3y\\4x-y+y=2x+3y+y\\4x=2x+4y\\2x=4y\\x=2y\\

Since 2x+3y=7 and plug in x=2y

we have

2x+3y=7\\2(2y)+3y=7\\4y+3y=7\\7y=7\\y=1

and since y=1

x=2

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Dress mart is having an end of summer sale that reduces all prices by 25%. What is the sale price of a dress that is regularly $
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Answer:

$28.50

Step-by-step explanation:

$38.00 x 0.75 = $28.50

8 0
3 years ago
Study island question...need help...PLSSSS HELP MEHHHHHH!!! 1 pic included...
OlgaM077 [116]

Answer:

C

Step-by-step explanation:

Keep a consistent ratio of 4:2, and we need a total of 36 glasses of punch.

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Hope this helps in some way.

4 0
3 years ago
Read 2 more answers
Abbey is stacking boxes of candles for a store display. The volume of each cube-shaped box is 125 cubic inches. If the display h
OLEGan [10]

The display after stacking of 6 layers of cube is 30 inches high.

Step-by-step explanation:

The volume of cubic box used by Abbey= 125 inch³

Total no of layer he has in display= 6

Height of the display-

We know that the volume of the cube is a³  

Where a is the side of the cube

Hence to find the side of the cubic box we need to find the cube root of the volume i.e. ∛125

Hence the side of each cube is 5 inch. Since all the sides for cube are equal hence the height would also be 5 inch

The total height of the display would be 6*5= 30 inches

4 0
3 years ago
Help on this complete the square problem.<br><br><br><img src="https://tex.z-dn.net/?f=x%5E2%2B3x%2B7" id="TexFormula1" title="x
Lesechka [4]
X2+3x+7=0 that’s the answer
6 0
3 years ago
Shelby is an entrepreneur who has decided to open a small advertising firm. She rents office space at a cost of $25,000 per year
mestny [16]

Answer:

$ 125,000

Step-by-step explanation:

Given,

The amount of rent = $ 25,000,

The salary of assistant = $ 30, 000

Expenses = $ 20,000,

Also, her best alternative is to work elsewhere and to earn a salary of $50,000 per year.

Thus, the investment in the firm = 25000 + 30000 + 20000 + 50000

= $ 125,000,

Now, if she earns zero economic profit,

Then her revenue = investment

= $ 125,000

7 0
3 years ago
Read 2 more answers
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