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svet-max [94.6K]
3 years ago
6

Need help ASAP please

Mathematics
2 answers:
ratelena [41]3 years ago
8 0

Answer:

I think its 22%

Step-by-step explanation:

fredd [130]3 years ago
5 0

Answer:

22%

Step-by-step explanation:

x/100 * 160=35

160x=3500

21.875

hence to the nearest percent: 22%

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78% of the class completed their homework last night. What fraction of the class completed their homework?
mixas84 [53]

Answer:

\frac{39}{50}

Step-by-step explanation:

=> 78% makes:

=> \frac{78}{100}

<u><em>In simplest form:</em></u>

=>\frac{39}{50}

3 0
3 years ago
Read 2 more answers
A supplier delivers an order for 20 electric toothbrushes to a store. by accident, three of the electric toothbrushes are defect
evablogger [386]
<span>3 of the 20 toothbrushes are defective, so the initial probability of selecting a defective toothbrush on the first try is 3/20. After that, there will be 2 defective toothbrushes in the remaining 19, so the probability of selecting one of those on the 2nd try will be 2/19. To get the probability of those two events happening sequentially, we multiply the two probabilities. Thus (3/20)*(2/19) = 6/380 = 0.0157, or about 1.6%.</span>
3 0
3 years ago
How can these models be used to find the sum 1.8 + 1.56?
enyata [817]

Answer:

The sum of  1.8 and 1.56 is 3.36 according to the model

Sum of decimals

Given the expression  1.8 + 1.56

Using the partial sum method

1.8 + 1.56 = (1.0 + 0.8) + (1.0+0.56)

Regroup as whole and decimal number

1.8 + 1.56 = (1.0 + 1.0) + (0.8 +0.56)

1.8 + 1.56 = 2.0 + 1.36

1.8 + 1.56 = 3.36

Hence the sum of  1.8 and 1.56 is 3.36 according to the model

3 0
2 years ago
√(5-22(√5)+121)<br> Simplify and show your steps
JulijaS [17]
The answer would be 8.7639
7 0
3 years ago
Solve by elimination.<br> 5x-7y=19<br> 7x-7y=-7
SVEN [57.7K]

Answer:

(x,y)=(-13,-12)

Step-by-step explanation:

5x - 7y = 19

7x - 7y = -7  Multiply both sides of the equation by -1

Which then gives you :

5x-7y=19  Sum the equations vertically to eliminate  

-7x+7y=7                 at least on variable

-2x=26      Divide both sides of the equation by -2

X=-13       Substitute the given value of x into the equation 7x - 7y =-7

7 x(-13)-7y=-7 solve the equation for y

y=-12

Thus gives you (-13,-12)

Hope this was useful!!! Sorry if it's wrong.

4 0
3 years ago
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