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Maslowich
3 years ago
11

Katie collects stamps. She has stamps from Canada, the U.S.A, and the rest of the world in a ratio of 1: 1.2: 1.5. She has 135 s

tamps from the rest of the world.
a) How many stamps are from Canada?
b) How many stamps are from the U.S.A?
c) What is the total number of stamps in Katie's collection?

(Please explain and show how you got those answers.)
Mathematics
2 answers:
adoni [48]3 years ago
5 0

Answer:

Step-by-step explanation:

:  I got A)90

          B)108

          C)333

              Hope that's right. I checked it 4 times.

77julia77 [94]3 years ago
5 0

Answer:

Step-by-step explanation:

A) 90

B) 108

C)333

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4) Arnold ate breakfast at a restaurant. His total came to $76.75. There is an 8% sales tax and 15% tip. What is Arnold's total
lisov135 [29]

Answer:

The total cost is $95.32.

Step-by-step explanation:

Given:

Total came to $76.75. There is an 8% sales tax and 15% tip.

Now, to find the total cost.

<em>8% sales tax is there so we calculate the amount after adding sales tax:</em>

$76.75 + 8% of $76.75

76.75+\frac{8}{100}\times 76.75

76.75+0.08\times 76.75

76.75+6.14

82.89

The cost after sales tax is $82.89.

Now, <em>the cost after 15% tip:</em>

$82.89 + 15% of $82.89

82.89+\frac{15}{100}\times 82.89

82.89+0.15\times 82.89

82.89+12.43

95.32

The cost after the tip is $95.32.

Therefore, the total cost is $95.32.

8 0
3 years ago
Rafael counted a total of 40 white cars and yellow cars. There were nine times as many white cars as yellow cars.How many white
Alex777 [14]
You said there were 40 yellow carsso 40×9 is 360
4 0
3 years ago
Given that a = 1, b = 2, and C = -3, evaluate<br>ab²- ac²/ 2bc​
Firlakuza [10]

Answer:

5/12

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6 0
3 years ago
Sally is having a problem with her puppy leaving the yard so she decides to build a new fence. The length of the yard is 7 feet
bezimeni [28]

The length = 6W + 7. 2L + 2W = 70. This is a system of equations. To get L by itself in the second problem, -2W from both sides to get 2L = 70 - 2W. Divide by 2 to get L = 35 - W. Now put them together. 6W +7 = 35 - W. Add W to both sides to get 7W + 7 = 35. Subtract 7 from both sides to get 7W = 28. Divide 7 to both sides to get W = 4. Now replace W with 4. 6(4) + 7 = L. 24 + 7 = 31. The length is 31. To check, do the second equation. 2(31) + 2(4) = 62 + 8 = 70. Your answer is 31.

3 0
3 years ago
Find the value of x<br> 12x<br> 6x+28<br> Your answer
Irina18 [472]

Step-by-step explanation:

Hey there!

By looking at the figure, the given "2x" and "6x + 28" are co-interior angle.

So,

2x + 6x + 28 = 180°. ( sum of co-interior angle is 180°)

8x + 28°=180°

8x = 180° - 28°

8x = 152°

x =  \frac{152}{8}

X = 19°

<u>There</u><u>fore</u><u>,</u><u> </u><u>X </u><u>=</u><u> </u><u>1</u><u>9</u><u>°</u><u>.</u>

<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

3 0
3 years ago
Read 2 more answers
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