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Andru [333]
3 years ago
11

Brian answered 35 questions, or 70%, correctly on a test. James answered 90% of the questions correctly.

Mathematics
1 answer:
Vinil7 [7]3 years ago
3 0
He answered 50 questions
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Fatima took 546 US dollars to the bank to exchange for Canadian dollars. If the exchange rate on that day was 1.6 Canadian dolla
olchik [2.2K]

Answer:

$873.60 Canadian dollars

Step-by-step explanation:

All you have to do here is multiply the rate, so 1.6, by the total amount, so 546.

546 x 1.6=873.6

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3 years ago
Which of the following terms correctly describe the object below?
Anuta_ua [19.1K]

Answer:

B,E and F are your answers

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PLEASE HELP!!!! The problem is in the photo below.
Nataly_w [17]
B should be the correct answer
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What is the area of a regular octagon with the side length 1 meter
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1

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3 0
3 years ago
Rachel has 60 scones. She sells them to Robbie, Cameron, Louis, Tom and Charlie in that order. Each customer buys more scones th
Korvikt [17]
Robbie bought the smallest amount. Let's use x for that amount.
Let's use n for amount that each following customer increases.

We have:
Robbie=x
Cameron=x+n
Louis=x+n+n
Tom=x+n+n+n
Charlie=x+n+n+n+n

We know that they bought total of 60 scones.
Robbie + Cameron + Louis + Tom + Charlie = 60
x + x+n + x+n+n + x+n+n+n + x+n+n+n+n = 60
5x + 10n = 60 /:5
x + 2n = 12

We are also given this information:
(Robbie + Cameron) = 3/7 * (Louis + Tom + Charlie)
We insert the equations from above:
(x + x+n) = 3/7 * (x+n+n + x+n+n+n + x+n+n+n+n) 
2x + n = 3/7 * (3x + 9n) /*7
14x + 7n = 3* (3x + 9n)
14x +7n = 9x + 27n
We take everything on the left side.
14x + 7n - 9x - 27n = 0
5x - 20n = 0/:5
x - 4n = 0

Now we have two equations:
x + 2n = 12
x - 4n = 0
We solve second one for x and insert it into first one.
x + 2n = 12
x = 4n

4n + 2n =12
6n = 12 /:6
n = 2
x=4*2
x=8


Now we can solve for the amount for each customer.
Robbie=x = 8
Cameron=x+n = 8 + 2 = 10
Louis=x+n+n = 8 + 2 + 2 = 12
Tom=x+n+n+n = 8 + 2 + 2 + 2 = 14
Charlie=x+n+n+n+n = 8 + 2 + 2 + 2 + 2 = 16
7 0
3 years ago
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