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Oduvanchick [21]
3 years ago
5

If you know that 4 of an item costs a certain amount, and you want to find out how much one costs, which operation will you use?

Mathematics
2 answers:
Natalija [7]3 years ago
6 0

Answer:

The answer would be division (B)

Step-by-step explanation:

4x equals the total amount

x equals the cost of one item

Therefore you'd divide total cost by 4 and that would find the cost of one item

ziro4ka [17]3 years ago
5 0

Answer:

We will use division operation

Step-by-step explanation:

Let x be the cost of 4 items

So, cost of 1 item = \frac{x}{4}

So, we have used division operation

So, to find out how much one costs, we will use division operation

So, Option B is true

Hence we will use division operation

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Jully bought 3 slices of cheese pizza and 4 slices of pepperoni pizza for $18.00. Christian bought 3 slices of cheese pizza and
andrew11 [14]

Answer:

$2.00

Step-by-step explanation:

You can form an equation with these statements, x being the price of cheese pizza and y being the price of pepperoni. Making the equation,

3x+4y=18

3x+2y=12

Solving the equation,

3x+4y=18

6x+4y=24

-3x=-6

x=2

y=3

Solving another way,

2y=6

y=3

x=2

Therefore, the answer is $2.00

8 0
2 years ago
2x+55=105<br>pls hurry ​
labwork [276]

Answer:

x = 25.

Step-by-step explanation:

Move all of the terms that don't contain x to the right side and solve.

Hope this helps,

Davinia.

4 0
2 years ago
Read 2 more answers
A botanist collected one leaf at random from each of 10 randomly selected mature maple trees of the same species. The mean and t
Zarrin [17]

Answer:

One sample t-test for population mean would be the most appropriate method.

Step-by-step explanation:

Following is the data which botanist collected and can use:

  • Sample mean
  • Sample Standard Deviation
  • Sample size (Which is 10)
  • Distribution is normal

We have to find the best approach to construct the confidence interval for one-sample population mean. Two tests are used for constructing the confidence interval for one-sample population mean. These are:

  • One-sample z test for population mean
  • One-sample t test for population mean

One sample z test is used when the distribution is normal and the population standard deviation is known to us. One sample t test is used when the distribution is normal, population standard deviation is unknown and sample standard deviation is known.

Considering the data botanist collected, One-sample t test would be the most appropriate method as we have all the required data for this test. Using any other test will result in flawed intervals and hence flawed conclusions.

Therefore, One-sample t-test for population mean would be the most appropriate method.

8 0
3 years ago
PLEASE HELP
slavikrds [6]

Answer:

B. Yes! Jason has printed 73/100 of the posters needed.

Step-by-step explanation:

7/10(1500) = 1050 minimum to print

1500-400 = 1100 printed

1100/1500 = 73/100

7 0
3 years ago
6) Dairon needs 20 pieces of string 3/8
OleMash [197]

Answer:

I do believe that your correct anwer is D.

Step-by-step explanation:Hope it helped

3 0
3 years ago
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