Which of the following simplifies the expression shown below?

Mathematics

1 answer:

kkurt [141]2 years ago

7 0

Answer:

Step-by-step explanation:

I just took the same quiz :/.... Please mark me Brainliest :D

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What value of x satisfies the equation 6.4−2x−6.63x=610.5 ?

Nesterboy [21]

6.4 - 2x - 6.63x = 610.5
subtract 6.4 from both sides
-2x -6.63x =604.1
collect like terms
-8.63x = 604.1
divide both sides by -8.63

x= -70

4 0

3 years ago

12 ten thousands, 8 thousands,14 hundreds, 7 ones in standard form

coldgirl [10]

12 x 10000 = 120000
8 x 1000 = 8000
14 x 100 = 1400
7 x 1 = 7

120000 + 8000 + 1400 + 7
129407 is your answer

hope this helps

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3 years ago

if y varies inversely as x and y = 194 when x = -13, find y when x = 50. Round your answer to the nearest hundredth, if necessar

pashok25 [27]

Step-by-step explanation:

Since, y varies inversely as x.

$\therefore \: y = \frac{k}{x} \\ (k = constant \: of \: proportionality) \\ \therefore \: xy = k...(1) \\ plug \: y = 194 \: \: and \: \: x = - 13 \: in \: (1) \\ \therefore \: - 13 \times 194= k \\ \therefore \: k = - 2522 \\ substituting \: k = - 2522 \: in \: (1) \\ xy = - 2522...(2) \\ this \: is \: equation \: of \: variation. \\ plug \: x = 50 \: in \: (2) \\ 50 \times y = - 2522 \\ \therefore \:y = \frac{ - 2522}{50} \\ \huge \red{ \boxed{\therefore \:y = - 50.44}}$

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3 years ago

Marie has a part time job. She earns $7 an hour. She makes at most $143.50 per week. What is the greatest number of hours that s

Troyanec [42]

We can divide 143.50 by 7. This gives us 20.5. This means that she works 20.5 hours a week or 21 hours if you round up.

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3 years ago

HELP PLEASE!!! Picture below!

Lady_Fox [76]

Answer:

7 (units)

Step-by-step explanation:

If E is placed at the number 6- then it would take 6 to get to 0. If B is placed at -1, then it would be one more backward to get to B- so it would take 7 to get from E to B.

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2 years ago