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Margarita [4]
3 years ago
13

10 Jenny has 12 marbles.

Mathematics
1 answer:
liraira [26]3 years ago
5 0

Answer:

620

Step-by-step explanation:

12-1=11

11x50

1x70

add the two totals and you should get 620

Hope this helps!

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Sterre charges $ 3 5 $35dollar sign, 35 to file tax returns, but files for free if she only needs the easiest form. Then she don
blagie [28]

Given:

  • $35 is charged per form, but $0 if only the easiest form is filed.
  • $2 donated for every single tax return filed (since it is not explicitly mentioned otherwise, I will assume she donates $2 whether she charges $35 or does it for free)
  • Total amount charged for the full year = $7245
  • Total amount donated for the full year = $1242

To Find: The number of forms for which Sterre charged $35 and the number of forms Sterre did it for free.

Concept:

We can make use of the Unitary Method here. <u>Given the number of units in a group, the Unitary Method can be used to find the value of a single unit or and individual unit when we are given the value for a group.</u>

So,

<u>Value of Single Unit = Value of Entire Group of Units ÷ Number of Units in the Group</u>


Explanation & Calculation:

We are given that Sterre charged $7245 for the full year. Taking each Unit as the $35 type of form, and value of each Unit would be the amount that Sterre charges per form which is obviously $35, we can find the number of $35 forms using the expression written above.

So, putting in the values into the expression,

$35 = $7245 ÷ number of $35 forms

Therefore, number of $35 forms = $7245 ÷ $35

Using simple division, number of $35 forms = 207

Next, we are given Sterre donated $1242 in the full year and she donates $2 for every form (whether it is the $35 form or the free form).

If this time, we define each Unit as being each form (both $35 form and free form), value of each unit we define as the $2 donation money, we see that the value of the full group of units is $1242.

So, putting the values into the expression,

$2 = $1242 ÷ total number of forms

Therefore, total number of forms = $1242 ÷ $2

Using simple division, total number of forms = 621


Conclusion:

Sterre has filed <u>a total of 621 tax returns</u> (both charged and for free).

Of these 621 returns filed, <u>for 207 forms, Sterre charged $35</u>.

The number of returns Sterre filed for free (that is, the easiest forms) is

Total number of forms - Chargeable forms = 621 - 207 = 414

Thus, Sterre filed <u>414 tax returns for free</u>.


8 0
3 years ago
Find the circumference of a circle with a radius of 2 inches. Give an exact answer.
pychu [463]

Answer:C=2πr=2·π·2≈12.56637in

Step-by-step explanation:

4 0
3 years ago
What is the slope of the line joining (8,8) and (12, 6)?
Anna71 [15]

Answer:

\huge \boxed{ \boxed{ -  \frac{1}{2} }}

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\

From the question we have

m =  \frac{6 - 8}{12 - 8}  =  -  \frac{2}{4}  =  -  \frac{1}{2}  \\

We have the final answer as

-  \frac{1}{2}  \\

Hope this helps you

6 0
2 years ago
If it costs $55 for 20 people to go rent a movie at red box how much does it cost per person?​
marusya05 [52]
55/20 = 2.75
It costs $2.75 per person
4 0
2 years ago
If i have a 91% in a class and i got a 78% on a test, and the test is 20% of my grade, what will my grade in the class be once t
Serggg [28]

Answer:

98%

Step-by-step explanation:

You add 78 and 20.

Tell me if it is wrong.

Thank you.

7 0
3 years ago
Read 2 more answers
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