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3 years ago

What is 80 percent of 90

Mathematics

2 answers:

fredd [130]3 years ago

6 0

80 percent of 90 is 72

Karolina [17]3 years ago

3 0

80 percent of 90 is 72! :)

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Daniel bought four bags of potatoes. The weight of the first bag was 2.6 pounds. The second bag weighed 0.4 pound less than twic

ipn [44]

Answer:

Average weight of the bags of potatoes is 3.8 pounds.

Step-by-step explanation:

Given:

Weight of the first bag, $W_{1}=2.6$ pounds.

Weight of the second bag is 0.4 pounds less than twice the weight of first bag. This means,

$W_{2}=2W_{1}-0.4=2(2.6)-0.4=5.2-0.4=4.8\textrm{ pounds}$

Weight of the third bag is 0.6 pounds more than that of the first bag. This means,

$W_{3}=W_{1}+0.6=2.6+0.6=3.2\textrm{ pounds}$

Weight of the fourth bag is 0.3 pounds less than that of the second bag. This means,

$W_{4}=W_{2}-0.3=4.8-0.3=4.5\textrm{ pounds}$

Therefore, the average weight of the bags of potatoes is given as the sum of all the weights and then divide the sum by 4. Therefore,

$W_{average}=\frac{W_{1}+W_{2}+W_{3}+W_{4}}{4}=\frac{2.6+4.8+3.2+4.5}{2}=\frac{15.1}{4}=3.775\approx 3.8$

Therefore, average weight of the bags of potatoes is 3.8 pounds.

8 0

3 years ago

Which of the following would you most likely measure in kilograms?

garri49 [273]

Answer:

The mass of a longhorn cow.

Step-by-step explanation:

Kilograms will measure mass, not length, so we are left between two options. Kilograms would be used for heavier objects, so between a paper clip (which would be likely measured in grams,) and the longhorn, the cow would be what you would measure in kilograms.

5 0

3 years ago

You went to the mall with $80 you spend 25% of your money on a pair of shorts and 65% of the remainder on sandels how much did y

stiv31 [10]

80*0.25=20
20*65=13
You spend $13 on the sandals

5 0

3 years ago

Read 2 more answers

A trader bought x mangoes at the rate of 4 mangoes for 10 naira, five of the mangoes were bad so he sold the remaining at the ra

Artemon [7]

Answer:

Step-by-step explanation:

The cost of the x mangoes was ...

c = 10(x/4)

The revenue from the sale of mangoes was ...

r = 20(x-5)/5

The profit is the difference between revenue and cost:

10 = r - c = 20(x -5)/5 -10(x/4) = 1.5x -20 . . . . substitute and simplify

30 = 1.5x . . . . . add 20

20 = x . . . . . . . .divide by 1.5

The trader bought 20 mangoes.

_____

<em>Check</em>

He paid 20(10/4) = 50 naira. He sold the 15 good mangoes for 20/5(15) = 60 naira, so made a 10 naira profit.

8 0

3 years ago

( 9 + 2 i ) ( 3 − 5 i ) − ( 9 + i ) ( 3 − 5 i ) Steps would be appreciated!

Harlamova29_29 [7]

<span>( 9 + 2 i ) ( 3 − 5 i ) − ( 9 + i ) ( 3 − 5 i )
FOIL
i x i = -1
(27 + 6i - 45i +10) - (27 +3i - 45i +5)
Combine like terms and distribute the negative
37 - 39i + 42i - 32
3i + 5
This is the farthest I could go with it. Assuming you were looking for a simplification though you did not specify your desired answer's criteria. Hope this helped!</span>

3 0

3 years ago