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sp2606 [1]
3 years ago
13

Mr.Chang had 30 boxes each box has 10 erasers If he gave each student has 2 erasers how many students could he give erasers to

Mathematics
1 answer:
Kitty [74]3 years ago
5 0
150 students 30x10 = 300. 300÷2=150
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What must be added to both sides of the equation x – 12 = 15 to isolate the variable?
pishuonlain [190]

Answer:

c. 12

Step-by-step explanation:

To isolate the variable, you need to cancel out whatever's on the same side of the variable by using the inverse of the operation.

Hope this helps!! Have an awesome day φ(*^0^)

8 0
3 years ago
A published report of a repeated-measures research study includes the following description of the statistical analysis. "The re
balandron [24]

Answer:

3 treatment conditions were compared in the study.

14 individuals participated in the study.

Step-by-step explanation:

Consider the provided information.

Part (A) How many treatment conditions were compared in the study?

There are two sets of degrees of freedom; one for the numerator and one for the denominator.

F ratio is defined as: df=(df_{\text{Between treatment}}, df_{error})

The formula for between treatment is: df_{\text{Between treatment}}=k-1

Substitute df_{\text{Between treatment}}=2 in above formula.

2=k-1

k=3

Therefore, 3 treatment conditions were compared in the study.

Part (B) How many individuals participated in the study?

The error degree of freedom is df_{error}=(k-1)(n-1)

Substitute df_{error}=26 and k=3 in above formula.

26=(3-1)(n-1)

26=2(n-1)

14=n

Hence, 14 individuals participated in the study.

3 0
3 years ago
Find the perimeter of the shape below and explain your process. <br> Bruh it’s 50 points.
frosja888 [35]

Answer:

The perimeter is 6x+8

Step-by-step explanation:

2(2x+3) +2(x+1)

4x+6+2x+2

6x+8

5 0
2 years ago
Read 2 more answers
An equilateral triangle has a perimeter of 60m and a height of 17.3m. what is its area?
Simora [160]

The area of any triangle is            (1/2) x (length of the base) x (height) .

In this problem, we know the triangle's height,
but what is the length of the base ?

The base is the side that the triangle is sitting on.  This particular triangle
is an equilateral one, and its perimeter is 60m.  So each side must be 20m. 
No matter which side the triangle is sitting on, the length of the base is 20m.

           Area = (1/2) x (base) x (height)

           Area = (1/2) x (20m) x (17.3m) =  <em>173 m²</em>


3 0
4 years ago
Read 2 more answers
Help plz most of points!
dmitriy555 [2]
First, we need to know how much profit in dollar value by this method
profit = percentage × whole price

Plug in the numbers to the formula above
profit = percentage × whole price
profit = 40% × 25
profit = 0.40 × 25
profit = 10
The profit Daniel gets is $10

Second, add the original price and the profit together and you'll find the new price.
new price = original price + profit
new price = $25 + $10
new price = $35

Daniel sold the computer game for $35
3 0
3 years ago
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