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Goshia [24]
3 years ago
9

Mr Elvis divided his money into the ratio 2 to 6 between Derek and Shan Eric of the smaller amount of 420. how much did Shan rec

eive?
Mathematics
1 answer:
vagabundo [1.1K]3 years ago
3 0

Answer:

Answer: $ 1260

Step-by-step explanation:

2/6 = 1/3  

E = Eric

S = Shan

E/S = 1/3 ⇒ 3·E = S·1 ⇒ 3E = S

S = 3E

S = 3·(420)

S = 1260  

Answer: $ 1260

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Find the surface area and round to the nearest hundredths place when necessary.
UNO [17]

Answer:

6 x 14 = 84

84 x 2(since there are two small rectangles) = 168

22 x 6 = 132

132 x 2 = 264

264 x 2(since there are two of the same shape) = 528

22 x 14 = 308

308  x 2(since there are two of the same shape) = 616

Now we add up all the areas:

168 + 528 + 616 = 1312 square cm is your answer.

8 0
3 years ago
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8 0
3 years ago
Anju had 3 (3 / 4) cup of sugar . She used 1 (2 / 3 )cup of sugar to bake a cake . How mush sugar does anju have lift ?
Artist 52 [7]

Answer:

y=\frac{1}{12} cup\ of\ suger

Step-by-step explanation:

From the question we are told that:

Sample size n=3(3/4)=9/12

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Generally the equation for sugar lift y is given as is mathematically given by

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7 0
3 years ago
Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.
charle [14.2K]

ANSWER

See below

EXPLANATION

Given

f(x) =  \frac{ {x}- 9 }{x + 5}

and

g(x) =   \frac{ - 5x - 9}{x - 1}

(f \circ \: g)(x)=  \frac{ (\frac{ - 5x - 9}{x - 1})- 9 }{(\frac{ - 5x - 9}{x - 1} )+ 5}

(f \circ \: g)(x)=  \frac{ \frac{ - 5x - 9 - 9(x - 1)}{x - 1}}{\frac{ - 5x - 9 + 5(x - 1)}{x - 1} }

Expand:

(f \circ \: g)(x)=  \frac{ \frac{ - 5x - 9 - 9x  + 9}{x - 1}}{\frac{ - 5x - 9 + 5x - 5}{x - 1} }

(f \circ \: g)(x)=  \frac{ \frac{ - 5x - 9x  + 9 - 9}{x - 1}}{\frac{ - 5x + 5x - 5 - 9}{x - 1} }

(f \circ \: g)(x)=  \frac{ \frac{ - 14x }{x - 1}}{\frac{ -14}{x - 1} }

Since the denominators are the same, they will cancel out,

(f \circ \: g)(x)= \frac{ - 14x}{ - 14}  = x

8 0
3 years ago
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