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Damm [24]
3 years ago
9

What is the simplified value of the expression below?

Mathematics
2 answers:
VikaD [51]3 years ago
7 0
-78.12 is the answer
Y_Kistochka [10]3 years ago
6 0

Answer:

-78.12

Step-by-step explanation:

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20+2x=x+56 solve for x
liubo4ka [24]

Answer:

Rearrange the numbers to their like terms.

which is 2x-x=56-20.

x=36.

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3 years ago
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The ratio of money in Brian's wallet to Colin's wallet one day was 5:1. Brian spent £27 that day. Brian now had £3 less than Col
myrzilka [38]

Answer:

Brian had $30 initially.Brian had $30 initially.

Step-by-step explanation:

WE are given the following in the question:

Let Brian have x dollars and Colin have y dollars.

Ration of Brian's money to Colin's money is 5:1. This, we can write the equation:

\dfrac{x}{y} = \dfrac{5}{1}\\\\x = 5y

"Brian spent £27 that day. Brian now had £3 less than Colin."

Thus, we can write the equation:

x-27 = y-3\\x-y = 24

Solving the two equation by substitution, we get,

x - y - 24\\5y - y = 24\\4y = 24\\y=6\\x = 5y =30

Thus, Brian had $30 initially.

7 0
3 years ago
The length of a rectangle is 3 m longer than its width.
Veseljchak [2.6K]

Step-by-step explanation:

With this question ,

The length of the rectangle is 3m longer than it's width=3 +w

then the width =w

therefore perimeter= 2L +2w

34= 2(3+w) +2w

34= 6+2w +2w

34-6 = 4w

28=4w

7= w

Area= Length x breadth

Area = (7+3) x7

Area= 10 x7

Area= 70cm square

5 0
2 years ago
What is the equation of the line, in point-slope form, that passes through the points (-1, 7) and (-2, 3)?
myrzilka [38]

Answer:

Step-by-step explanation:

(3-7)/(-2+1)= -4/-1= 4

y - 7 = 4(x + 1)

y - 7 = 4x + 4

y = 4x + 11

4 0
4 years ago
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