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Georgia [21]
3 years ago
6

Can someone help me with first question

Mathematics
2 answers:
garik1379 [7]3 years ago
4 0

Answer:

16

Step-by-step explanation:

You would multiply 4 by 4 because it is 4 to the second power to get 16.

weeeeeb [17]3 years ago
3 0

Answer:

Step-by-step explanation:

4^2= 4 x 4 =16

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Josephine can correct her students test papers in 5 hours, but if her teacher’s assistant helps, it would take them 3 hours. How
ipn [44]

<u><em>7 hours 30 minutes</em></u>

<u><em></em></u>

Sure hope this helps you :D

4 0
2 years ago
ALGEBRA Find the value of each variable in the parallelogram.
Doss [256]
You didn’t include the parallelograms
3 0
3 years ago
Stock A changed by - $2,60 during the day. Stock B changed by 3
Slav-nsk [51]

Answer:

$7.80

Step-by-step explanation:

$2.60 * 3 = $7.80

5 0
3 years ago
Two trains leave New York at the same time heading in opposite directions. Train A travels at 4/5 the speed of train one. After
grandymaker [24]
<h3>Answer:  </h3><h3>speed of train A = 44 mph</h3>

=============================================

Work Shown:

x = speed of train A

y = speed of train B

"train A travels 4/5 the speed of train B" (I'm assuming "train one" is supposed to read "train B"). So this means x = (4/5)y

distance = rate*time

d = x*7

d = (4/5)y*7 = (28/5)y represents the distance train A travels

d = y*7 = 7y represents the distance train B travels

summing those distances will give us 693

(28/5)y + 7y = 693

5*(  (28/5)y + 7y ) = 5*693

28y + 35y = 3465

63y = 3465

y = 3465/63

y = 55

Train B's speed is 55 mph

4/5 of that is (4/5)y = (4/5)*55 = 4*11 = 44 mph

Train A's speed is 44 mph

8 0
3 years ago
Solve the equation.<br> 8 -(x + 5) = 5x - 3
Mandarinka [93]

Answer:

x = 1

Step-by-step explanation:

8 -(x+5) = 5x - 3

-(x+5)  --->   -1 (x +5) = -x - 5

8 - x - 5 = 5x -3            8 - 5 = 3

-x + 3 = 5x - 3

+x         +x

3 = 6x - 3

+3       +3

6 = 6x

/6   /6

<u>x = 1</u>

8 0
3 years ago
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