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3 years ago

How do I solve this problem? Please help

Mathematics

2 answers:

Westkost [7]3 years ago

8 0

9n + 6 = 456
9n = 456 - 6
9n = 450
n = 450/9
n = 50

I believe this is the answer, though i'm not sure.

bekas [8.4K]3 years ago

7 0

I believe the answer is 5

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Roman55 [17]

Answer: -1.78

Step-by-step explanation:

As per given description, we have

Population proportion : $p=0.35$

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3 years ago

Trigonometry please help

kotykmax [81]

Answer:

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2 years ago

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Oliver and Lenny started hiking a hill simultaneously from the bottom to the top. Oliver hiked at a speed of 5 km/h during the f

Papessa [141]

Answer:

Oliver and Lenny reached the top of the hill at the same time

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Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Oliver's speed = 5 km/h during the first half, then decreased his speed to 4 km/h during the second half.

Lenny's speed = 4 km/h during the first half, then increased his speed to 5 km/h in the second half.

2. Who reached the top of the hill first? What is the proportion of time he spent hiking to that of his friend?

Let's assume the distance from the bottom to the top of the hill is 10 kilometers for calculating the time it will take Oliver and Lenny to reach the top of the hill:

Speed = Distance/Time

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Oliver = Time of hiking first 5 km + Time of hiking second 5 km

Lenny = Time of hiking first 5 km + Time of hiking second 5 km

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Lenny = 5/4 + 5/5

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2 years ago

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bixtya [17]

Answer:

Step-by-step explanation:he first digit must be a 6, 7, or 8, because the number has to be bigger than 6,000.

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So if the first digit is 6 or 8, there are 4 odd-number options for the last digit. If the first digit is a 7, then there are only 3 options for the last digit, as 7 can’t be used twice.

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At this point, we have everything we need to express this as an equation:

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Step-by-step explanation:

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