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NikAS [45]
2 years ago
9

Please help me asap I will give brainliest or whatever you want

Mathematics
1 answer:
dangina [55]2 years ago
7 0

Answer/Step-by-step explanation:

Part A:

Key:\left[1 Adult = 4 Student]

Formula: Divide by 4

<u> 12 Student = 3 Adult</u>

<u>24 Student = 6 Adult</u>

<u>40 Student = 10 Adult</u>

Part B:

33 Student

Hence, divide 33 by 4 = 8 with a remainder of 1.

Therefore, 8 Adult and for the remainder 1 student either one Adult takes 5 Student or Needed 9 Adult.

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Cam is 3 years older than Lara, If there combined age is 63, determine their ages by solving simultaneous elmination.
dem82 [27]

Answer:

30 and 33 years

Step-by-step explanation:

Let Lara be x years

Cam =x+3

x+x+3=63

2x+3=63

2x=63-3

2x=60

x=60/2

x=30

Lara=30years and Cam =30+3+33years

5 0
3 years ago
Read 2 more answers
The height of 5 boys is 5.4 ft, 6.12 ft., 7.02 ft. 4.9 ft, and 6.25 ft. What is the average
11Alexandr11 [23.1K]

Wll not just this question, but whenever you need to find average, you have to:

Wait, for example let's take ur question:

1st step we will add up all the values aka heights:

5.4+6.12+7.02+4.9+6.25=29.69

And then how many values did you take???

Its, 5 values

1st value= 5.4

2nd value=6.12

aaand so on....

However, then we will have to divide the sum by no.of values

29.69÷5=5.938

Aaand this is your FINAL ANSWER

Done!!!!

Hope I helped you!!!

4 0
3 years ago
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Lincoln saves 40% of every paycheck. His paycheck last week was $660. How much did Lincoln save last week?
sergejj [24]
Take the whole and multiply it by the percentage

so...

660 * .4 = 264
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3 years ago
A boy jogs 250 meters in 110 seconds. What is his average speed in m/s?
babunello [35]
His average speed is 2.27 meters per second
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3 years ago
Cos2a= 2cos^2a-1 for all values of a<br><br> true or false?
Law Incorporation [45]
True
<span>Cos(A+B)=CosACosB-SinASinB
therefore Cos(A+A)= CosACosA - SinASinA
= Cos^2A - Sin^2A</span>
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3 years ago
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