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nekit [7.7K]
3 years ago
11

Find three equivalent fractions for 2/3 by multiplying by 3/3, 5/5 and 6/6. What property of multiplication do we use to find eq

uivalent fractions?

Mathematics
1 answer:
RideAnS [48]3 years ago
4 0
<h3><em>The property of multiplication used to find equivalent fractions is called the multiplicative identity. It says that when a number is multiplied by 1, it remains same. When finding equivalent fractions, the numerator and denominator of a fraction is multiplied by the same number. In other words, the fraction is multiplied by 1, hence it remains the same.</em></h3>

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Find the selling price<br><br><br>Cost to store: $90<br><br>Markup: 60%
lisabon 2012 [21]
The markup is what the store adds to its cost of the item to cover expenses and give the store a profit. Find the amount of markup, and add it to the cost to find the selling price.

60% of $90 =

= 60% * 90

= 0.6 * 90

= $54

$90 + $54 = $144

The selling price is $144
8 0
3 years ago
Which graph best represents the function f(x)=2x ?
yan [13]

Answer:

B

Step-by-step explanation:

The best - well, only way- is to check a few points.

Namely -1 (unless your eyesight is really poor!), 0, 1, 2, and 3.

f(x) = 2^x\\f(-1) = 2^-^1 = \frac12\\f(0) =2^0 =1\\f(1)= 2^1=2\\f(2)=2^2=4\\f(3)=2^3= 8

Now you can mark all these points in each graph (well, you could if they were on paper and not on a screen) and see which one of the lines passes through all of them. Spoiler alert, it's the B graph.

A represents 2(2^x) = 2^{x+1}, B is the one you want, C is \frac{2^x}2 = 2^{x-1} and D looks like 4^x = 2^2^x

3 0
2 years ago
The heights (in cm) and arm spans (in cm) of 31 students were measured. The association between (height) and (arm span) is shown
sergeinik [125]

Answer: Mike's arm span is 7.165 cm longer than the George's one.

Step-by-step explanation:

We have that the association between height and arm span is modeled by the equation

y = 4.5 + 0.977*x

where y is height and x is arm span.

Mike is 172 cm tall, so his arm span is:

172cm = 4.5 + 0.977*x

x = (172 - 4.5)/0.977 = 171.443 cm

and George is 165 cm tall, so his arm span is:

x = (165 - 4.5)/0.977 = 164.278 cm

Then the difference between their arm span is:

171.443cm - 164.278cm = 7.165 cm

So Mike's arm span is 7.165 cm longer than the George's one.

6 0
3 years ago
Dan and Becca have cups that are the same size. Dans cup is 1/4 full of water. Beccas cup is 1/6 full of water. Compare the amou
matrenka [14]

Answer:

>

Step-by-step explanation:

1/4 is greater than 1/6.

8 0
3 years ago
Sin(x)= 4/5 dilated by 2
Damm [24]
It would remain the same (4/5). <span>Sin of the angle is unchanged regardless of the size; it is a ratio related only to the angle, not the size of the triangles.</span>
6 0
3 years ago
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