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wariber [46]
3 years ago
10

Write an expression that shows how to use the halving and doubling strategy to find 28 x 50

Mathematics
1 answer:
Anna71 [15]3 years ago
4 0
Multiply the values then either divide by 2 or multiply by 2
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What two numbers add up to 18 and multiply to 80
mestny [16]

Answer:

8 and 10

Step-by-step explanation:

First, let's look at the factors of 80.

1 • 80 = 80

2 • 40 = 80

4 • 20 = 80

5 • 16 = 80

8 • 10 = 80

Look at each pair and evaluate their sum.

1 • 80 = 80

  • 1 + 80 = 81

2 • 40 = 80

  • 2 + 40 = 42

4 • 20 = 80

  • 4 + 20 = 24

5 • 16 = 80

  • 5 + 16 = 21

8 • 10 = 80

  • 8 + 10 = 18

Our last pairing multiplies to 80 and adds up to 18. Therefore, your answer is 8 & 10.

Hope this helps!

4 0
3 years ago
a class has 14 students, 8 students are females, and 6 students are males. how many teams of 7 students contain at most 4 female
arlik [135]

Answer:

2416

Step-by-step explanation:

8 0
3 years ago
Solve the variable<br>Show ALL steps.<br>-25 + x = 37​
vodomira [7]

Answer:

x=62

Step-by-step explanation:

1. add + 25 to both sides because when you have a negative you have to add.

2.  When you add 25 to 37 you get 62.

therefore 62 is the answer

6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%3Cbr%3E%0Ay%3D%20x%5E%7B2%7D%20-9" id="TexFormula1" title="&amp;#10;y= x^{2} -9" alt="&amp;#1
svp [43]
Simple...

y=x^{2} -9

y= x^{2} -9

It's quite easy to see x^{2} = x^{2}

Thus, any value of x makes the equation true.

Thus, your answer.
7 0
3 years ago
Which option shows the graph of 3y+18&gt;5x
andrew-mc [135]

Hi, I'm so sorry I can't answer that. but I have something you can answer that. Search in browser or anything searcher that you have "Quickmath" or "Cymath" all your equations,problems can solved

Step-by-step explanation:

i hope it helps

3 0
3 years ago
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