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Ugo [173]
3 years ago
7

I need help on how to do this!!!?​

Mathematics
1 answer:
liraira [26]3 years ago
3 0

Let's say you had a cake that is cut into 5 equal slices. Then someone eats 2 of those slices. They ate 2/5 of the cake.

Now let's say you have another cake that you cut into 10 equal slices. If someone eats 4 of those ten, then they have eaten 4/10 = 2/5 of the cake.

Check out the diagram below to see a visual of how 4/10 and 2/5 are equivalent fractions.

Going from 2/5 to 4/10 has us multiply top and bottom by 2.

-----------

Similarly, 1/2 = 5/10 after multiplying top and bottom by 10

The original expression 2/5 + 1/2 turns into 4/10 + 5/10

Then you add the numerators to get 4+5 = 9, placing that over the common denominator of 10

<h3>Answer: 9/10</h3>

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Natasha_Volkova [10]
I'm pretty sure the answer is G. I'm not 100% sure tho. Hope this helps! :)
5 0
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Select all the equations that have x=20 as a solution
Orlov [11]
The correct answers are A. 2x= 40 and D. 4x= 80~

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4 0
4 years ago
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Factor each by using the GCF.<br> a) 36x+81 b) 24a+36
nydimaria [60]

The Greatest Common Factor (GCF) is very important when factoring. Later on, you will forget to pull out a GCF and the answer will be wrong. Always look for a GCF before doing anything.

Let's try factoring these:

a.) 36x+81

The greatest common factor of this expression is 9, because it is the maximum number that both can go into. Let's solve.

9(4x+9)

This is the simplest this expression can get. This would be your final answer. Let's try the other one.

b.) 24a+36

The GCF of this one is 12. Let's simplify it.

12(2a+3)

This is also the simplest you can get it. You can do nothing further. So, your final answers are:

a.) 9(4x+9)

b.) 12(2a+3)

5 0
4 years ago
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Which of the following numbers has the correct number of significant digits for the sum of 4.0125 and 5.72?
sladkih [1.3K]

Answer:

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6 0
2 years ago
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The pie chart shows the flavours of ice cream sold by a shop in one
Vadim26 [7]

Given:

The pie chart shows the flavours of ice cream sold by a shop in one  day.

There were a total of 270 ice creams sold.

To find:

The number of vanilla flavoured ice creams sold.

Solution:

We know that the complete central angle is 360 degrees.

From the given pie chart, it is clear that the central angle of the vanilla flavoured ice creams sold is 60 degrees.

Total ice creams sold = 270

Now, the number of vanilla flavoured ice creams sold is

n=\dfrac{\text{Central angle of vanilla}}{\text{Complete central angle}}\times \text{Total ice creams sold}

n=\dfrac{60^\circ}}{360^\circ}}\times 270

n=\dfrac{1}{6}\times 270

n=45

Therefore, the number of vanilla flavoured ice creams sold is 45.

4 0
3 years ago
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