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Nookie1986 [14]
3 years ago
10

Tiffany answered 80% of the questions on her math test correctly. There were 40 questions on the test. How many questions did Ti

ffany answer correctly?
Mathematics
1 answer:
coldgirl [10]3 years ago
4 0

Answer:32

Step-by-step explanation:

P%=p/100

80/100*40

4/8*40

4*8=32

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The patriot diner sells 2 cheeseburgers and one soda for $11.00 and 3 hamburgersand 2 sodas for $18.00. What is the cost of a ch
kvasek [131]

Answer: the cost of a cheeseburger is $4

Step-by-step explanation:

Let x represent the cost of one cheeseburgers.

Let y represent the cost of one Soda.

The patriot diner sells 2 cheeseburgers and one soda for $11.00. It means that

2x + y = 11 - - - - - - - - - - - 1

She also sells 3 cheeseburgers and 2 sodas for $18.00. It means that

3x + 2y = 18 - - - - - - - - - - -2

Multiplying equation 1 by 3 and equation 2 by 2, it becomes

6x + 3y = 33

6x + 4y = 36

Subtracting, it becomes.

- y = - 3

y = 3

Substituting y = 3 into equation 1, it becomes

2x + 3 = 11

2x = 11 - 3 = 8

x = 8/2 = 4

6 0
3 years ago
Third term of (x + 3) 12
dem82 [27]
12 I’m pretty sure because you have x then 3 then 12
5 0
2 years ago
In a sale the price of a bike is reduced by 40% the sale price of the bike is £192 how much did the bike cost before the sale?
OleMash [197]
The original price was £320 before the 40% sale price
4 0
2 years ago
Please explain!!!!!!!!!!!!!!
dexar [7]
You have to multiply by 16's and then divide the two numbers
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Write thThe bookstore is selling a series of 4 books for $97.50. What is the unit price for one book? Round your answer to the n
Sveta_85 [38]

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Step-by-step explanation: I don’t understand the kilometers.

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