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lidiya [134]
3 years ago
15

Evaluate the numerical expression8×{[(7+4)×2]-[(11-7)×4]}

Mathematics
1 answer:
alina1380 [7]3 years ago
3 0

Answer:

We have:

7 + 4 = 11;

11 - 7 = 4;

11 x 2 = 22;

4 x 4 = 16;

22 - 16 = 6;

Finally, 8 x 6 = 48;

Step-by-step explanation:


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One pumpkin weighs 7 lb 12 oz. A second pumpkin with 10 pounds 4 ounces. A pumpkin weighs 2 pounds 9 ounces more than the second
Nesterboy [21]

Answer:  30 lbs, 13 oz

This converts to 493 ounces

===============================================================

Explanation:

Pumpkin A weighs 7 lb, 12 oz. Let's convert that to ounces only

1 lb = 16 oz

7 lbs = 112 oz (multiply both sides by 7)

7 lbs, 12 oz = 112 oz + 12 oz .... add 12 oz to both sides

7 lbs, 12 oz = 124 oz

Pumpkin A's weight of 7 lbs, 12 oz is the same as 124 oz

-----------

Do something similar for pumpkin B

1 lb = 16 oz

10 lbs = 160 oz

10 lbs, 4 oz = 160 oz + 4 oz

10 lbs, 4 oz = 164 oz

Pumpkin B weighs 164 oz

-----------

Let's convert the "2 lbs, 9 oz" to ounces only

1 lb = 16 oz

2 lbs = 32 oz

2 lbs, 9 oz = 32 oz + 9 oz

2 lbs, 9 oz = 41 oz

So pumpkin C is 41 ounces heavier compared to pumpkin B

The weight of pumpkin C is 164+41 = 205 ounces

----------

We have these three weights in ounces only

  • Pumpkin A = 124 oz
  • Pumpkin B = 164 oz
  • Pumpkin C = 205 oz

Adding those three ounces only weights leads to

124+164+205 = 493 ounces

The total weight of all three pumpkins is 493 ounces

Now let's convert back to the unit "pounds, ounces"

Divide that result over 16 since there are 16 ounces per pound

493/16 = 30.8125

Ignore the decimal portion. The 30 is the quotient which means 493-30*16 = 13 is the remainder.

In other words,

493/16 = 30 remainder 13

which leads to

493 ounces = 30 pounds, 13 ounces

--------------

As a check,

1 lb = 16 oz

30 lbs = 480 oz

30 lbs, 13 oz = 480 oz + 13 oz

30 lbs, 13 oz = 493 oz

The answer is confirmed.

8 0
2 years ago
According to Home Water Works, the average American shower uses 17.2 gallons and lasts about 8.2 minutes. To the nearest tenth o
bearhunter [10]

\huge\pink {\underline { \overline{ \bf \mid\: \: \: \: \: Question\: \: \: \: \mid}}}

Home Water Works says that in most homes, showers are the third-largest user of water after toilets and clothes washers. The average American shower water usage is 17.2 gallons with the average shower length being 8.2 minutes. The average flow rate is 2.1 gallons per minute.

\huge\mathbb\colorbox{white}{\color{pink}{Hope\:It\:Help\:U}}

3 0
2 years ago
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Given: BA = 6 feet
bogdanovich [222]
The answer is definitely not 7.777777
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2 years ago
The pencil is 10 cm long and the cup is 8 cm tall. Find the diameter of the base of the cup?
vlada-n [284]
80 because when u do 10 times 8 it’s 80
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Rylie paid $12 for two cans of racquetballs as shown in the tape diagram, where the green bars represent the amount she spent, a
aleksklad [387]

Answer:

your answer is 18$

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