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agasfer [191]
3 years ago
13

What is an expression for the calculation 2/3 times the sum of 2/8 and 4/8?

Mathematics
1 answer:
Naily [24]3 years ago
8 0
2/3((2/8)+(4/8))
For the 2/8 + 4/8 you wouldn't need the extra set of parentheses, but for I typed it to not confuse you.

So 2/3 times the sum of 2/8 and 4/8. Get the sum of 2/8 and 4/8 (which is
((2/8)+(4/8)) and then add 2/3 outside to parentheses to indicate that you are multiplying them.
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betty's bakery calculates the total price d in dollars for c cupcakes using the equation d=2c. What does 2 mean in this situatio
zmey [24]
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8 0
3 years ago
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There are 4 chaperone for every 15 students who attend a school field trip. if there were 135 students, how many adults would th
fredd [130]
Let's just make 15 students a group. how many groups are there if there r 135 student? 135/15 = 9 groups.
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3 0
3 years ago
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The average of 3, 15, and my number is 40. What is my number?<br><br> I'll give 30 points!
stepan [7]

Answer:

102

Step-by-step explanation:

The average is calculated using

average = \frac{totalscore}{count}

let your score be x, then

\frac{3+15+x}{3} = 40 ( multiply both sides by 4 )

18 + x = 120 ( subtract 18 from both sides )

x = 102 ← your number

3 0
3 years ago
Help me on this.<br><br><br>what can be used in step 3?​
wolverine [178]

Step-by-step explanation:

answer is been attached, hope u understand

5 0
3 years ago
4 (x-9) = -48 x= please help me <br>​
valentina_108 [34]

distribute the 4:

4x-36=-48x

subtract 4x

-36=-52x

divide by -52

x=1/2

7 0
3 years ago
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