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3 years ago

Please help me answering this question WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

ra1l [238]3 years ago

5 0

The answer you are looking for is 1.

When you divide a fraction by another fraction, you flip the second one (make it the reciplical) and multiply straight across. 1/2 * 2/1 = 2/2, which simplified (divided by 2/2) is 1.

I hope this helps!

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A pharmacist has a 12% solution and a 20% solution of boric acid. How much of each should she use to make 80 grams of a 15% solu

nlexa [21]

Step-by-step explanation:

If x = the amount of 12% and y = the amount of 20%, then x + y = 80

Since we need 80 grams of 15%, 80(.15) = 12.

We are given that .12x + .20y = 12.

We can solve the first equation for x or y. Let's do x.

x = 80 - y

.12(80 - y) + .20y = 12

9.6 - .12y + .20y = 12

.08y = 2.4

y = 30

x = 80 - 30 = 50

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3 years ago

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A taxi driver charges a flat rate of $3.75 plus $1.50 per mile. If you spent

vesna_86 [32]

Answer:

3424

Step-by-step explanation:

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3 years ago

Amnar deposited $5600 in a simple interest saving account with an annual interest rate yo 2.9 percent.how much is in the account

BaLLatris [955]

The answer is D
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6 0

3 years ago

A coin is tossed 8 times. Which of the following represents the probability of the coin landing on heads all 8 times?

ElenaW [278]

Answer:

$\large\boxed{\large\boxed{Probability=1/256\approx 0.0039}}$

Explanation:

Since, there are two possible outcomes for every toss (head or tail), the sample space for a coin tossed 8 times is 2×2×2×2×2×2×2×2 = 2⁸ = 256.

Landing on heads all 8 times is just one of the possible outcomes: HHHHHHHH ⇒ 1.

Hence, the probability is calculated from its own definition:

Probability = number of favorable outcomes / number of possible outcomes

$Probability=1/256\approx 0.0039\text{ }\leftarrow answer$

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3 years ago

A coffee shop gives the customer a free cup of coffee after the purchase of 5 cups: a.) industrial marketing program b.) loyalty

AveGali [126]

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2 years ago