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Alex787 [66]
3 years ago
8

What is the value of x? 40,000 mg = 10x g. A.400 B.40 C.4 or D 0.4

Mathematics
2 answers:
xeze [42]3 years ago
8 0
There are 1000mg in 1g, so 40,000mg = 40g
40g = 10x
x = C. 4g
MissTica3 years ago
3 0
I hope this helps you

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If 8 men on a construction crew make up 40% percent of the entire crew, how many people are in the crew?
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Step-by-step explanation:

Since 40% of the crew are men, which means n. 40=8 n=8/. 40 n=20 total number of crew 20 - 8=12 are women

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Drag and drop numbers into the boxes to complete and solve the equation for the situation. One month, Ruby worked 6 hours more t
d1i1m1o1n [39]

Answer:

Ruby = x = 22 hours

Isaac = y = 16 hours

Svetlana = 88 hours

Step-by-step explanation:

Let the number of hours worked be represented as:

Ruby = x

Isaac = y

Svetlana = z

Total number of hours worked =

x + y + z = 126 hours........ Equation 1

Ruby worked 6 hours more than Isaac,

x = y + 6..... Equation 2

Svetlana worked 4 times as many hours as Ruby

z = 4 × x

z = 4x

z = 4(y + 6)

z = 4y + 24....... Equation 3

Substituting y + 6 for x and 4y + 24 for z in Equation 1

x + y + z = 126 hours........ Equation 1

y + 6 + y + 4y + 24 = 126

Collect like terms

y + y + 4y + 6 + 24 = 126

6y + 30 = 126

6y = 126 - 30

6y = 96

Divide both sides by 6

6y/6 = 96/6

y = 16

Since y represents the number of hours Isaac worked, Isaac worked for 16 hours

Substitute 16 for y in equation 2

x = y + 6

x = 16 + 6

x = 22

Since x represents the number of hours Ruby worked, Ruby worked for 22 hours

Substitute 16 for y in equation 3

z = 4y + 24

z = 4 × 16 + 24

z = 64 + 24

z = 88

Since z represents the number of hours Svetlana worked, Svetlana worked for 88 hours

Therefore:

Ruby worked for 22 hours

Isaac worked for 16 hours

Svetlana worked for 88 hours

5 0
3 years ago
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