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schepotkina [342]

3 years ago

7

hayden is planning a party he bakes 21 cookies if he plans to give each person 3 cookies how many people will be at his party

1 answer:

NikAS [45]3 years ago

4 0

Answer:

7 people

Step-by-step explanation:

(21 cookies)/(3 cookies/person) = 7 person

_____

If you're really challenged figuring this out, you can count out 21 of some object—such as pennies, scraps of paper, or even cookies—and deal them into piles of 3 each. Then count the piles. Working with actual physical objects can often give you mathematical insight not obtainable any other way.

Each pile subtracts 3 from the original amount. We use the arithmetic operation "division" to simplify repeated subtraction.

Knowing number facts such as 3×7 = 21 is very helpful to solving problems of this nature.

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Cameron buys 2.45 pounds of apples and 1.65 pounds of pears. Apples and pears each cost c dollars per pound. If the total cost a

nordsb [41]

Answer:

$4.12=2.45c+1.65c$

Step-by-step explanation:

We are given,

Cameron buys 2.45 pounds of apple and 1.65 pounds of pears.

Also, the cost of apples and pears is 'c' dollars per pound.

Thus, the cost of 2.45 pounds of apple is $2.45c$ dollars and the cost of 1.65 pounds of pear is $1.65c$ dollars.

Since, the total cost after using a coupon is $4.12.

So, we get the equation representing the situation is,

Total cost = Total cost of apples + Total cost of pears.

i.e. $4.12=2.45c+1.65c$

i.e. $4.12=4.1c$

i.e. $c=\frac{4.12}{4.1}$

i.e. c = 1 dollar

Hence, the required equation to find c is $4.12=2.45c+1.65c$ .

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Sedbober [7]

Answer:

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The cost of 1 dozen pencil is Rs.96.what is the cost of 2 pencils

natali 33 [55]

Answer:

Rs.16

Step-by-step explanation:

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cost of 2 pencils = 2 × Rs.8 = Rs.16

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Step-by-step explanation: addition

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Step-by-step explanation:

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