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Georgia [21]
2 years ago
7

A school bought 10³ erasers as part of an order for supplies. The total cost of the erasers was $30. What was the cost of each e

raser?
Mathematics
1 answer:
tresset_1 [31]2 years ago
8 0

Answer:

0.03

Step-by-step explanation:

divide 3 by 10^3 to obtain the answer.

You might be interested in
What is the volume of the right rectangular prism?<br> Area of base = 56 sq ft<br> Need help
Lilit [14]
Step by step: 4 divided by 56

because the 4 represents how many sides of the shape .

and 56 is the total of the rectangle prism .

and u won’t multiply because u can’t get a bigger number than the total .

Answer: 14

Hope this helps !

7 0
3 years ago
Scarlett tried to shade all the factors of 15 on the hundred chart.What mistake did Scarlett make? A.Scarlett shaded the factors
Xelga [282]

Answer:

C. Scarlett shaded the multiples instead of the factors of 15

Step-by-step explanation:

Scarlett tried to shade all the factors of 15 on the hundred chart 15,45,75,30,60,90 What mistake did she make

She shaded 15,45,75,30,60,90 on the chart

Factors of 15 are 1, 3, 5 and 15

15, 45, 75, 30, 60, 90 are multiples of 15

That is,

15 × 1 = 15

15 × 3 = 45

15 × 5 = 75

15 × 2 = 30

15 × 4 = 60

15 × 6 = 90

Therefore Scarlett's mistake is:

C. Scarlett shaded the multiples instead of the factors of 15

4 0
3 years ago
It has been hypothesized that overall academic success for college freshmen as measured by grade point average is a function of
liubo4ka [24]

Answer:

23.2586 ; IQ ; hours spent studying per week

Step-by-step explanation:

Given the regression model:

y = 6.9+0.055x1 +0.107x2 + 0.0853X3.

IQ scores = (X1)

Hours spent studying each week = (X2),

one's high school average = (x3)

The multiple standard error is 6.313 and R^2=0.826.

What is the predicted GPA for a student with a IQ of 108, 32 hours spent studying per week and a high school average of 82?

X1 = 108 ; X2 = 32 ; X3 = 82

y = 6.9 + 0.055(108) + 0.107(32) + 0.0853(82)

y = 23.2586

B.

The Independent variable with the smallest effect on GPA is the variable with the smallest Coefficient, which is IQ with a Coefficient of 0.055

C.

The Independent variable whiae unit change has the greatest effect on GPA is X2, hours spent studying per week as it has the highest Coefficient of all independent variables with a Coefficient value of 0.107.

5 0
3 years ago
george is paints his fence . he paints 1/4 of the fence in 2/5 an hour . how long will it take him to the entire fence
arsen [322]
2/5 of an hour is 24 minutes (60 minutes divided by 5, multiplied by 2)
Then you multiply 24 minutes by 4 (Since he can paint 1/4 of the fence in 24 minutes) and you get 96 minutes to paint the entire fence.
3 0
3 years ago
A Bank manager receives Rs. 18000 for a basic 36 hours per week Over time is paid at a time and a half. How many hours are worke
-Dominant- [34]

He worked 43 hours to earn Rs. 23250

His basic pay is Rs. 18000 for a basic 36 hours a week. His salary is

Rs. 23250. This proves that he has worked extra time. So the amount earned in the extra hours equals Rs. 23250 - Rs. 18000 = Rs.5250.

Amount per hour earned in basic pay = 18000/36 = Rs.500 a hour.

∴ Amount per hour earned in extra hours = 1.5 x 500 = 750  per hour.

So number of hours he worked in extra time =  Rs.5250/750 = 7 hours.

Thus total number of hours = 36 + 7 = 43 hours.

Learn more about basic salary here :

brainly.com/question/18798457

#SPJ1

3 0
2 years ago
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