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zvonat [6]
3 years ago
12

Nicholas wrote the steps below to

Mathematics
1 answer:
Inessa05 [86]3 years ago
7 0

Answer:

He does not divide the numerator and the denominator by the same number. Nicholas divides 20 by 5 and 30 by 6. He ought to have divided 30 by 5 as well and then simplified.

P.S. Nicholas should have just divided both 20 and 30 by 10 to simplify in one step

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Solve each equation. check you solution.<br> (7t - 2) - (-3t + 1) = -3(1 - 3t)
Lynna [10]
(7t-2) - (-3t+1) = -3*(1-3t)
First distribute:
7t-2+3t-1 = -3+9t
Now get all the terms with 't' on the same side by subtracting/adding:
7t+3t-9t = -3+2+1
Combine the terms:
1t=0
t=0

Check:
Plug in 0 for t and see if both sides of the equation come out the same:
Does (7(0)-2) - (-3(0)+1) = -3(1-3(0))  ?
(-2) - (1) = -3(1)  ?
-3 = -3  ?
Yes! It works, so t=0! 
5 0
4 years ago
a deep sea diver dives from the surface to 240 meters below the surface and then swims down another 25 meters,up 80 meters,up 12
Ne4ueva [31]

if your wanting to know how far the diver will be down you do 240+25 which is 265

265-80=185 (cause the diver swims up)

185+12+30 =227

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the deep see diver is at 211 meters below the surface

8 0
4 years ago
20. in an apple orcherd in 2015,
Margarita [4]

Answer:

<u>5-number summary is:</u>

  • Minimum = 750
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  • Median = 2250
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The numbers are added to the box plot.

See attached

7 0
3 years ago
What is the simplified expression for 2(x-5)?<br> 2x<br> -10x<br> 2x-10<br> 2x+5
ratelena [41]

Answer:

2x-10

Step-by-step explanation:

2(x) - 2(5) = 2x - 10

7 0
3 years ago
How come the π/6 is equal to 1/2 and radical 3 over 2?
bearhunter [10]

Answer:

cos(π/6)= radical 3 over 2 sin(π/6) = 1/2

Step-by-step explanation:

In the unit circle the coordinates of the point for the particular angle can be expressed by cos(x) for the x value and sin(x) for the y value. For π/6, the point's x value is radical 3 over 2 as expressed by cos(π/6) and the y value is 1/2 as expressed by sin(π/6)

5 0
3 years ago
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