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2 years ago

12

Katarina bought a package of 500 stickers. Each sheet in the package has 20 stickers.

1 answer:

Mashcka [7]2 years ago

5 0

I think there are 125 heart stickers and 375 star stickers. 20/4 = 5, so there are 5 heart stickers per sheet. there are 25 sheets in the package, 5 x 25 = 125. if the remaining stickers on a sheet are stars then there are 15 star stickers per sheet. 15 x 25 = 375.

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It takes 12 minutes to fill an entire bathtub using both the cold and hot water. If just the cold water is used, it takes 18 min

Kipish [7]

Answer:

<h2>It takes 36 minutes to fill the bathtub using just hot water.</h2>

Step-by-step explanation:

We are gonna name V the complete volume of the bathtub, which is filled a certain amount of minutes. Each filling rate or speed is gonna be expressed as: $\frac{V}{t}$ .

So, if we apply this consideration to each case we have:

Using cold and hot water: $\frac{V}{12}$

Using only cold water: $\frac{V}{18}$

Using only hot water: $\frac{V}{x}$ ; because we don't knot the time it takes to fill the bathtub with hot water.

Now, as you can see, Cold and Hot water is a sum of cold water only and hot water only:

$\frac{V}{12}=\frac{V}{18}+\frac{V}{x}$

Solving the equation for <em>x: </em>

$\frac{V}{12}=\frac{xV+18V}{18x} \\\frac{V}{12}=\frac{(x+18)V}{18x}\\\\\frac{18xV}{V}=12(x+18)\\18x=12x+216\\18x-12x=216\\6x=216\\x=\frac{216}{6}=36$

Therefore, it takes 36 minutes to fill the bathtub using just hot water.

7 0

2 years ago

Read 2 more answers

For Joe's illness, the doctor gave him a prescription of 28 pills. He needs to take 4 pills the first day, and then 2 pills each

kiruha [24]

Answer:

12 days.

Step-by-step explanation:

I looked at it this way:

He has to take 4/28 pills the first day, so it's 28-4=24. Then I divided 24 by 2.

In simpler terms:

28-4=24

24/2

12

8 0

2 years ago

I round to 900 I have twice as many hundreds as ones and all my digits are different but their sums are 18 can someone answer th

stellarik [79]

Answer:

The number of once is 9.1

The number of hundreds is 8.9

Step-by-step explanation:

Given as :

The total of digits having ones and hundreds = 900

The sum of digits = 18

Let The number of ones digit = O

And The number of hundreds digit = H

So, According to question

H + O = 18 .........1

100 × H + 1 × O = 900 ........2

Solving the equation

( 100 × H - H ) + ( O - O ) = 900 - 18

Or, 99 H + 0 = 882

Or , 99 H = 882

∴ H = $\frac{882}{99}$

I.e H = 8.9

Put the value of H in eq 1

So, O = 18 - H

I.e O = 18 - 8.9

∴ O = 9.1

So, number of once = 9.1

number of hundreds = 8.9

Hence The number of once is 9.1 and The number of hundreds is 8.9

Answer

4 0

2 years ago

Alice is shopping for cheese. She notices that the cheddar and brie have the same volume, even though their shapes are different

shutvik [7]

The correct answer is B: 4 cm

6 0

2 years ago

Read 2 more answers

Factor the algebraic expression below in terms of a single trigonometric function. csc 2x - 1

hjlf

(csc(x) + 1)(csc(x) -1)

5 0

2 years ago