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3 years ago

Five cups of coffee cost £4.00 how much does 3 cups of coffee cost

Mathematics

2 answers:

Eddi Din [679]3 years ago

8 0

Answer:

2.00

Step-by-step explanation:

mixer [17]3 years ago

7 0

Answer:

3 cups of coffee cost £2.4

Step-by-step explanation:

5 cups of coffee cost - £4.00

Thus, 1 cup coffee costs - 4/5

Thereby, 3 cups of coffee cost - (4/5)*3 = £2.4

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Which is equal to 6^-8/6^-2 A. 616 B. 64 C. 6−6 D. 6−10

rjkz [21]

6-6.
6^-8/6^-2 becomes 6^-8(6^2) which is 6^-8+2=6^-6

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3 years ago

Which inequality is true?

DENIUS [597]

Answer:

A. 7pi>21

Step-by-step explanation:

7*pi=21.99

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1 year ago

Moby sold half his toy car collection, and then bought 12 more cars the next day. He now has 48 toy cars. How many cars did he h

castortr0y [4]

Answer: 72 cars.

Step-by-step explanation:

Let be "x" the number of toys that Moby had to start with.

According to the information given in the exercise, Moby sold half his toy car collection. This can be represented with the following expression:

$\frac{1}{2}x$

Then he bought 12 more cars, giving a total amount of 48 toy cars.

Therefore, the equation that represents this situation is the equation shown below:

$x-\frac{1}{2}x+12=48$

Now you must solve for "x" in order to find its value.

You get that this is:

$\frac{1}{2}x+12=48\\\\\frac{1}{2}x=48-12\\\\\frac{1}{2}x=36\\\\x=(36)(2)\\\\x=72$

7 0

4 years ago

Is the following argument valid?

cestrela7 [59]

I believe the answer is A! I hope that's correct! :)

3 0

3 years ago

Read 2 more answers

Suppose the discrete random variable X has the probability distribution below:

Talja [164]

(a) P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.11 + 0.52 + 0.19 = 0.82

(b) P(X ≥ 1) = P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) = 0.52 + 0.19 + 0.12 + 0.06 = 0.89

(d) σ² = (0²×0.11 + 1²×0.52 + 2²×0.19 + 3²×0.12 + 4²×0.06) - µ² = 1.07

σ = √(σ²) ≈ 1.03

4 0

3 years ago