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3 years ago

DIGITTI

Mathematics

2 answers:

qaws [65]3 years ago

7 0

Multiply the amount of the sale by the commission rate:

8,000 x 0.20 = 1,600

He earned $1,600

irina1246 [14]3 years ago

7 0

Answer:

The salesman earned $1,600 in commission.

Step-by-step explanation:

$8,000 is 100% of the price, so

20% × 8000 = 1600 so

$1,600 is 20% of $8,000.

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Help me answer these please will give brainlst

Naddika [18.5K]

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2 years ago

A ferry departs from a port along the Sands River at 10:00 am. The ferry travels at a speed of 15 mph in still water and returns

jek_recluse [69]

Answer:

Speed of river's current = 5 mph

Step-by-step explanation:

Let 'd' be the distance covered

Let x be the speed of the rivers current

Speed upstream = 15-x

speed downstream = 15+x

Time = distance / speed

time upstream = $\frac{d}{15-x}$

time downstream = $\frac{d}{15+x}$

the ferry trip upstream takes twice as long as its return trip downstream

$\frac{d}{15-x}$ = $\frac{2d}{15+x}$

divide both sides by d

$\frac{1}{15-x}$ = $\frac{2}{15+x}$

cross multiply

$15+x= 2(15-x)$

$15+x= 30-2x$

Add 2x on both sideds

$15+3x= 30$

subtract 15 from both sides and divide by 3

$3x=15$

x=5

Speed of river's current = 5 mph

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3 years ago

Five out of ten bags of candy had exactly 30 pieces in them. How many bags out of 40 should have exactly 30 pieces?

mylen [45]

Answer:

20 bags should have 30 pieces in them.

Step-by-step explanation:

five out of ten is 1/2

then 1/2 of 40 is 20

therefore there should be twenty bags with 30 pices each.

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3 years ago

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3 years ago

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