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madreJ [45]
2 years ago
10

12x - 3x + 4 = 5x - 16 Please show me how you got it!

Mathematics
2 answers:
FinnZ [79.3K]2 years ago
8 0

Answer:

x = -5

Step-by-step explanation:

Combine them like terms,then you subtract 4 from both sides,and then Simplify

oksano4ka [1.4K]2 years ago
6 0

Step-by-step explanation:

12x-3x+4=5x-16

9x+4=5x-16

collect like terms

9x-5x= -16-4

4x= -20

divide both sides by 4

x = -5

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Sam runs 2 miles in 16 minutes. If Sam runs at the same rate, how far can he run in 64 minutes?
Pie

Answer:

8 miles

Step-by-step explanation:

Since

16 x 4 = 64

Therefore

2 x 4 = 8

8 miles

5 0
3 years ago
For how many minutes did Lynn run at a greater speed than Kael? 12 17 23 28.
Archy [21]

Answer:

<u><em>28 minutes.</em></u>

Step-by-step explanation:

We can see from our graph that 12 minutes after starting the race Lynn left Kael behind and he ran at a greater speed till the race ended after 40 minutes.

To find total number of minutes Lynn ran faster than Kael we will subtract 12 from 40.

Therefore, Lynn ran at a greater speed than Kael for <u><em>28 minutes.</em></u>

4 0
2 years ago
Solve for x. Leave your answer in simplest radical form.
pochemuha

Answer:

x = 4√7

Step-by-step explanation:

You can use the pythagorean theorem which is a² + b² = c²

if you plug it in, it would be...

x² + 12² = 16²

x² + 144 = 256, subtract 144 to both sides

x² = 112, square root both sides to make x by itself.

x = 4√7  

6 0
3 years ago
Which statement is true?
Nata [24]
P(hemoglobin level between 9 and 11) = P(age between 25 and 35 years)..
8 0
3 years ago
Mandi learned that each 10% of charge on her cell phone gave her an hour and twenty minutes of use. While playing a game today o
Sonja [21]

Answer:

3hrs 12 mins

Step-by-step explanation:

For every 10% charge she gets 1hr 20mins (or 80 mins)

Charge drop = (81% - 57%) = 24%

Since 10% gives 80 mins;

          24% gives (24/10) x 80 mins = 192 mins

since 1hr = 60 mins

192 mins = 192/60 = 3hrs 12 mins

3 0
3 years ago
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