MATHEMATICS MIDDLE SCHOOL

3. The first car of the train, right behind the engine, contains 10 boxes. In each of the followingcars there are twice as many boxes as in the car in front of it.
How many boxes are there in the fifth car?
(A) 100
(B) 120
(C) 140
(D) 160
(E) 180

Answers

Answer 1
Answer:

Answer:

10×2=20 second car

20×2=40 third car

40×2=80 fourth car

80×2=160 fifth car

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What is 5 5/7-5 2/7 please help fast

Answers

Your answer is 3/7 because you have to go 5-5=0 and 5/7-2/7=3/7 so it is 3/7

Answer:

3/7

Step-by-step explanation:

5-5=0

5/7-2/7=3/7

15.2 m
20 m
18.8 m
What is the area

Answers

Answer:

5715.2 cubic metres

Step-by-step explanation:

I'm assuming that by area you mean volume. If you just take 15.2 x 20 x 18.8 you find the volume, 5715.2 cubic metres.

Answer: 15.2 x 20 x 18.8 = 57, 152 m

Step-by-step explanation: Just multiply all numbers

I need help on 13-26 please

Answers

13. 10% of 40
= 40 × 0.10 = 4

14. 12% of 100
= 100 × .12 = 12

15. 99% of 60
= 60 × .99 = 59.4

16. 100% of 81
= 81 × 1 = 81

17. 45% of 360
= 360 × .45 = 162

18. 55% of 1,024
= 1024 × .55 = 563.2

19. 45 + n = 97
n = 97 - 45 = 52

20. n - 18 = 100
n = 100 + 18 = 118

21. n - 72 = 91
n = 91 + 72 = 163

22. n + 23 = 55
n = 55 - 23 = 32

23. 5 × t = 105
t = 105 ÷ 5 = 21

24. b ÷ 13 = 8
b = 8 × 13 = 104

25. k × 18 = 90
k = 90 ÷ 18 = 5

26. d ÷ 7 = 8
d = 8 × 7 = 56

What is |58| in absolute value?

Answers

"So in practice "absolute value" means to remove any negative sign in front of a number, and to think of all numbers as positive (or zero)."

so your answer is { 58 } :)
The answer is 58 because there is no negative sign on the outside. For instance, -|58| this would be -58 since the negative sign is on the outside.

Is 4/5 less than greater than or equal to 3/4

Answers

4/5=0.8
3/4=.75
So, 4/5 is greater than 3/4
Hope this helped
The correct answer is that its equal. Hoped it Helped. Please Mark the Brainliest.

Write 3 3/5 as a improper fraction

Answers

18/5, you do the C method which you take the 3 and multiply it by the denominator which is 15 and add the numerator which is 3 
18/5 cause you times the bottom one and add the top
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