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I am Lyosha [343]
3 years ago
8

the cost of having photos taken includees fee and $12 for each photo.Mrs.fong buys 6 photos for a total cost of $87.what

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
3 0

Answer:

The rate of change is $12/photo and the sitting charge would be 15.

y = 12x + 15

Step-by-step explanation:

Multiply 6 * 12 and subtract that from 87.

6 * 12 = 72

87 - 72 = 15

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$5

Step-by-step explanation:

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2 years ago
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The rectangle below has an area of x^2-x-72x 2 ?x?72 square meters and a length of x+8x+8 meters. What expression represents the
Varvara68 [4.7K]

Answer:

Area of the rectangle is given by:

A = l \times w

where

A is the area of the rectangle

l is the length of the rectangle

w is the width of the rectangle respectively.

As per the given statement:

Area of the rectangle(A) =  x^2-x-72 square meters

length of the rectangle(l) = x+8

Substitute these in the given formula we have;

x^2-x-72 = (x+8) \times w

x^2-9x+8x-72 = (x+8) \times w

x(x-9)+8(x-9)= (x+8) \times w

or

(x+8)(x-9)= (x+8) \times w

Divide both sides by x+8 we have;

w = (x-9) meters.

Therefore, the expression represents the width of the rectangle is x-9 meters


4 0
3 years ago
Javier is building a model train. He has enough track for a train that is
Musya8 [376]
He doesn’t have enough for both to be on at a time but if the cars are on without the train the cars will take up 2.4 meters leaving them with an extra .1 meters of length
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2 years ago
A 10-metre long pipe is cut into 2 pieces. One piece is 5 times the length of the other piece. Find the length of each piece, en
elena55 [62]

9514 1404 393

Answer:

  1.67 m, 8.33 m

Step-by-step explanation:

If the ratio of lengths is 1 : 5, then the ratio of the shortest length to the total is ...

  1 : (1+5) = 1 : 6

The shortest length is (10 m)×(1/6) = 1.67 m. The longer length is 10 -1.67 = 8.33 m.

The lengths of the pieces are 8.33 m and 1.67 m.

6 0
2 years ago
Guy's y'all plzz answer this who knows about it...and also exam is near​
Yanka [14]

Answer:

Step-by-step explanation:

Okay so I will explain the first one.

2 to the power of 4 = 2x2x2x2

2 to the power of 6 = 2x2x2x2x2x2

2 to the power of 4 = 2x2x2x2

2^4 = 16

2^6 = 64

When you are multiplying powers you add.

+

When you subtract you takeaway.

-

So you would do

4+6+4

= 14

Meaning 2 to the power of 14

2x^{14}

So what is 2 to the power of 14.

You would do

2x2x2x2x2x2x2x2x2x2x2x2x2x2

The answer is 16384

You can also use a calculator

GOOD LUCK FOR YOUR TEST!

7 0
3 years ago
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