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s2008m [1.1K]
3 years ago
10

Carl is boarding a plane. He has 2 checked bags of equal weight and a backpack that weight 4kg. The total weight of Carl’s bagga

ge is 35kg.
Write an equation to determine the weight, w, of each of Carl’s checked bags.
Mathematics
2 answers:
maw [93]3 years ago
8 0

Answer: 2x + y = 35kg   or  2x + 4kg = 35kg

Step-by-step explanation:

The checked bags = 2 x

A backpack = y = 1* 4kg

2 x  + y = 35 kg

2 x   + 4Kg = 35kg

2 x  = 31 kg

x = 31 kg / 2

x= 15.5Kg

garik1379 [7]3 years ago
5 0

35 = 4 + 2b

2b = 35 - 4

b = backpack

35 - 4 = 31

2b = 31

Divide by 2

15.5 = b

Each bag weighs 15.5kg.

15.5 * 2 + 4 = 35

31 + 4 = 35

35 = 35

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If 60% of a KNOWN NUMBER is 180, what is the 40% of that UNKNOWN NUMBER?
Lana71 [14]

Step-by-step explanation:

I think you mean you want to find out 40% of a number,, when 60% of it is 180, so I'll answer that:

60% = 180

÷6

10% = 30

x4

40% = 120

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Hopefully this helps :)

4 0
2 years ago
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2 years ago
The sum of 69 and 42 is five more than the difference of 146 and a number. Calculate the value of the unknown number.
Len [333]
As an equation, we have:
69+42=5+(146-x)

You just have to simplify:

111=5+(146-x)
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5 0
3 years ago
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Harlamova29_29 [7]

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Step-by-step explanation:

4 0
2 years ago
Stella wants to buy colored pencils that cost $3.50. She has 1 dollar, 5 quarters, 4 dimes, and 7 pennies. Does she have enough
Andrews [41]

Answer:

no

Step-by-step explanation:

Lets she how much money she has

1.00   dollars

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4 * .10 = .40 dimes

7 * .01 = .07 pennies

Add it all together

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6 0
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