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madam [21]
3 years ago
10

6 erasers cost $6.60. Which equation would help determine the cost of 3 erasers

Mathematics
2 answers:
rewona [7]3 years ago
5 0

I think its just 6.60 divided by six, thats how many each one costs, then multiply it by 3

Hope this helps :)

IrinaVladis [17]3 years ago
3 0

Answer:

3.3

Step-by-step explanation:

because you can divide 6.60 by 6 which is 1.1 then multiply it by 3

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What is the value of the expression below when x = 3?<br> 10x2 – 7x + 10
QveST [7]

Answer:

79

Step-by-step explanation:

To find the value of 10x^2 – 7x + 10, when x = 3, simply plug in the value of x in the expression and solve as follows:

10(3)^2 – 7(3) + 10

10(9) – 21 + 10

90 – 21 + 10

79

The value of 10x^2 – 7x + 10, when x = 3, is 79

5 0
3 years ago
sylvie needs $110 for a concert ticket. she already has $ 16 and she can earn the rest by working 10 hours at her job. if h repr
n200080 [17]

Given, Sylvie needs $110 for a concert ticket.

Sylvie has $16.

Her hourly earnings = $h

Sylvie is working 10 hours at her job.

She is getting in 1 hour = $h

So, 10 hours she will get = $ = $

So the total amount she has now = $16 + $(10h) = $()

So we can write the equation as,

110=16+10h

We can move 16 to the left side also. 16 is added to the right side. We can move it by using reverse operation of addition. Reverse operation of addition is subtraction. So we will subtract 16 from both sides. Subtracting 16 we will get,

110-16=16+10h-16

110-16=10h

We have got the required answer.

To find Sylvie's hourly income the correct options are option A and option D.

4 0
3 years ago
Read 2 more answers
Which ordered pair is a solution to this equation? y = 2x + 1
Irina18 [472]
Y = 2x + 1
y - 1 = 2x
x = y - 1/2
8 0
3 years ago
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A square is removed from the right hand corner of a square board. What is the area of the remaining board in square feet?
Mama L [17]
<h2>Answer:</h2>

The area of the remaining board in square feet is:

                             108 square feet.

<h2>Step-by-step explanation:</h2>

The remaining area of board=

Area of the whole board-Area of square which is removed.

i.e.

Area of remaining board= Area of square of side length 12 feet-Area of square with side length 6 feet.

We know that the area of square with side length s units is given by: s² square units

Hence, we get:

Area of remaining board= (12)²-(6)²

i.e.

Area of remaining board= 144-36

i.e.

Area of remaining board= 108 square feet.

3 0
3 years ago
Find the quotient of 2.632 x 10^4 and 2 x 10^-7
givi [52]
(2.632\cdot10^4):(2\cdot10^{-7})=(2.632:2)\cdot(10^4:10^{-7})\\\\=1.316\cdot10^{4-(-7)}=1.316\cdot10^{4+7}=\boxed{1.316\cdot10^{11}}
6 0
3 years ago
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