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GalinKa [24]
3 years ago
13

Write the negation of the quantified statement all dogs are friendly

Mathematics
1 answer:
Sladkaya [172]3 years ago
7 0
All dogs are friendly because they help humans to walk and to protect them
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Marlo uses 252 lb of gravel to cover a garden plot of 36 ft2. How many pounds of gravel does it take to cover one square foot? H
irakobra [83]

The area and the amount of gravel are illustrations of proportions.

7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.

The given parameters are:

252\ lb= 36ft^2

The number of pound for an area of <em>1 square foot </em>is calculated as follows:

x = 1ft^2

So, we have:

x = 1ft^2

252\ lb= 36ft^2

Cross multiply

x \times 36 = 252 \times 1

Divide both sides by 36

x = 7lb

The area to be covered with 315lb gravel is calculated as follows:

315lb = y

So, we have:

315lb = y

252\ lb= 36ft^2

Cross multiply

y \times 252 = 36 \times 315

y \times 252 = 11340

Divide both sides by 252

y = 45

Hence, 7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.

Read more about proportions at:

brainly.com/question/13114933

6 0
3 years ago
Aladdin had two envelopes to start. He bought three packs of
Stells [14]
Since it starts with 2 envelopes, subtract 2 from 17 to get how many and in all 3 packs.
17 - 2 = 15
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Plz help I put 25 ponts
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What number is 30% of 100
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Step-by-step explanation:

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