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evablogger [386]
3 years ago
12

Please help! Write an expression for 6 times more than twice a number decreased by

Mathematics
1 answer:
Shalnov [3]3 years ago
3 0
Answer (6•2) - 7 ) \ 4
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If 2 sodas and 3 hot dogs are $17 while 5 sodas and 6 hot dogs are $38.75 - how much are each separately?
Bond [772]

The cost of soda is $4.75 and the cost of hot dog is $2.5

<u>Step-by-step explanation</u>:

<u>Let us assume :</u>

  • The cost of soda be 'x'.
  • The cost of hot dog be 'y'.

<u>Given that,</u>

The cost of 2 sodas and 3 hot dogs are $17.

⇒ 2x + 3y = 17  ------(1)

The cost of 5 sodas and 6 hot dogs are $38.75

⇒ 5x + 6y = 38.75  -------(2)

<u>Solving the equations to find x and y values :</u>

Multiply eq(1) by 2 and subtract eq(2) from eq(1),

 4x + 6y = 34

-(<u>5x + 6y = 38.75</u>)

 <u>-x         = -4.75 </u>

The value of x = 4.75

The cost of soda is $4.75

Substitute x=4.75 in eq(1),

2(4.75) + 3y = 17

3y = 17 - 9.5

3y = 7.5

y = 7.5/3

y = 2.5

The cost of hot dog is $2.5

7 0
3 years ago
Which point on the number line represents the product of 4 and –2?
Goshia [24]

Answer:

It's A

Step-by-step explanation:

the one above me is incorrect it's "A"

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3 years ago
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Question 10
KonstantinChe [14]

Answer:

area of the trapezoid=1/2(7+12)×5

=47.5cm

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3 years ago
If x-2y=1 and 2x+3y=9 then what is x
yan [13]
The first one is x=2y plus one.
The second one is

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3 years ago
Need help people please help me
Ugo [173]

This is the answer .

If you need more explanation I am free

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