3 years ago

When twice a certain number is added to 7,the result is less than 17.what is the number.

Mathematics

1 answer:

EleoNora [17]3 years ago

7 0

Answer: 2?

Step-by-step explanation:

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3 years ago

The square of a number is equal to 10 less than 7 times that number. What are the two possible solutions?

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4 years ago

Mariam’s uncle donate 120 cans of juice and 90 packs of cheese cracker for the school picnic. Each student must receive the same

monitta

Answer:

8 students,

15 cans of juice and 11 packs of cheese cracker

Step-by-step explanation:

Mariam’s uncle donate 120 cans of juice and 90 - 2 = 88 packs of cheese cracker (eats two packs) for the school picnic.

Factor these numbers:

$120=2\cdot 60=2\cdot 2\cdot 30=2\cdot 2\cdot 2\cdot15=2\cdot 2\cdot 2\cdot 3\cdot 5\\ \\88=2\cdot 44=2\cdot 2\cdot 22=2\cdot 2\cdot 2\cdot 11$

The greatest common factor is

$2\cdot 2\cdot 2=8,$

so the greatest number of students who can share the food equally is 8 and each student will get $3\cdot 5=15$ cans of juice and 11 packs of cheese cracker.

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3 years ago

for a fundraising campaign, a club has a choice of buying products for $20 plus 50% of the sales or $100 plus 25% of the sales.

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Answer:

Step-by-step explanation:

20 plus .5x = 100 plus .25x

.25x=80

x=320.

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3 years ago

When twice a certain number is added to 7,the result is less than 17.what is the number.​

When twice a certain number is added to 7,the result is less than 17.what is the number.