The wall is to be 5ft by 7 ft. A brick is 4 inches by 12 inches. How many bricks are needed

Mathematics

1 answer:

Tatiana [17]3 years ago

3 0

you need 83 bricks i believe

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On a six-day vacation, the forecast is a 70% chance of rain every day. What’s the probability that it rains every day?

docker41 [41]

Answer:

0.12 (12%)

Step-by-step explanation:

Step 1: Given data

Probability of rain every day: 70% (0.7)

Step 2: Calculate the probability that it rains every day

The probability that it rains one day is independent of the probability that it rains another day. For independent events, we can calculate the probability that it rains every day by multiplying the individual probabilities. Since the individual probabilities are equal, this is the same as raising the individual probability to the number of days.

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3 years ago

#1 What is the explicit equation of the sequence 10125, 2025, 405, 81, ..? *

vazorg [7]

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3 years ago

Nine less than five times a number is equal to -30

disa [49]

To solve this question, we can start to set up an equation using what the question is telling us. Since we don't know what the number is, let's make it equal to x.

The phrase "5 times a number" means that we're multiplying our unknown, x, by 5. That is equal to 5x. 9 less than that would be 5x - 9. Since we know that it's equal to -30, we can solve.

5x - 9 = -30

Get all terms with x on one side and the constants on the other

5x - 9 +9 = -30 + 9

Simplify

5x = -21

Now, we can divide both sides by 5 to get our answer of x = - $\frac{21}{5}$