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Ugo [173]
2 years ago
13

Please help with this table

Mathematics
1 answer:
Lyrx [107]2 years ago
7 0

Answer:

10

Step-by-step explanation:

Mean = 8+12+10+6+14 = 50

50 divided by 5 = 10

(Divided by 5 because there are 5 numbers)

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(d) A car travels at an average speed of 80 km/h. How far does it travel in: (1) 2 hours? (11) 12 minutes?​
zepelin [54]
Answer is (1) 160 km in 2 hours and
(2) 16 miles in 12 minutes.

Step by step.
80 km / 1 hour = x km /2 hours
Cross multiply =
x = 160

The second one requires a little more math. Because we are looking at how far in minutes, we change the rate of 80km in 1 hour to 80 km in 60 minutes.
80 km / 60 = x / 12
Cross multiply
12x = 960
Solve for x by dividing both sides by 12
X = 16

I did the math on a print screen to explain the cross multiply.

3 0
1 year ago
2u^2 + v when u=3 and v=7
Mariana [72]

Answer: 25

Step-by-step explanation:

There are two variables which is u and v and is given that u is 3 and v is 7  so input that into the expression and solve.

2(3)^2 + 7      Solve the exponent first

2(9) + 7      Now multiply then add

18 + 7 = 25

5 0
3 years ago
Victor needs to calculate the number of miles per gallon his car averages. His car's gas tanks holds 15 gallons of gas. Write an
krek1111 [17]
Since you're looking for the unit rate, you can start do this:
mpg= \frac{miles}{gallon}\\
y=\frac{x}{15}
And yes, 15y=x is also correct, it's just switching around the 15
8 0
2 years ago
Read 2 more answers
Simplify (8j3 + 5j2 – 3) – (5j3 + 7j2 – 12j + 7) ...?
Free_Kalibri [48]
The answer to the problem is:

<span>8j^3 + 5j^2 - 3 - 5j^3 - 7j^2 + 12j - 7
 </span>
<span>3j^3 - 2j^2 + 12j - 10 
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!


5 0
3 years ago
Read 2 more answers
10x - 4x <br>combine like terms​
mojhsa [17]

Answer:

6x

Step-by-step explanation:

Combining like terms is simply representing them as a single term. With algebra, you can perform arithmetic on the coefficient (the 10 and the 4) to simplify the expression, giving you 6x.

4 0
3 years ago
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