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3 years ago

I haven't been on here for a while, what's new brain.ly?????!!!!

Mathematics

1 answer:

crimeas [40]3 years ago

4 0

Answer:

nothing

Step-by-step explanation:

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A man drove his car a distance of 260 miles in 4 hours. If continuing at this rate is possible, he will travel ____ miles in 8 h

spayn [35]

Answer:

520 miles

Step-by-step explanation:

since 4 is half of 8, you just multiply 260 by 2.

4 0

3 years ago

Read 2 more answers

A falling object travels a distance given by the formula d=3t+5t2, where d is measured in feet and t is measured in seconds. How

Romashka-Z-Leto [24]

Answer:

4.52secs

Step-by-step explanation:

Given the height of a falling object expressed as;

d=3t+5t^2

If the object travel 84 feet, we are to find the time t it takes to travel. On substituting;

84 = 3t+5t^2

3t+5t^2 - 84 = 0

t = -5±√25-4(3)(-84)/2(3)

t = -5±√25+1008/6

t = -5±32.14/6

t = -5+32.14/6

t = 27.14/6

t = 4.52 secs

Hence it will take 4.52secs for the object to travel 84feet

8 0

3 years ago

Solve the following equation for x to find the total number of people who became members of a social networking site for a certa

zavuch27 [327]

Answer:

360 people

Step-by-step explanation:

x = 0.8x + 72 Subtract 0.8x on both sides

0.2x = 72 Divide 0.2 on both sides

x = 360

5 0

4 years ago

Read 2 more answers

The sum of 2 numbers is 50. the second number is 5 times the first. what is the number.

sp2606 [1]

Let the first and smaller number be x. Since the second number is 5 times the first, the second number is 5x. We also know both of these numbers must add to 50; thus, we can create the following equation.

$x+5x=50$

Combine like terms

$6x = 50$

Divide both sides by 6

$x = 50/6 = 25/3 \approx 8.333$

This is the value of the first number. The number you're looking for isn't specified in the question description, so I'll just provide the value of the second number. The second number has to be 5 times the first.

Thus, we just multiply 5 to x.

$5x = 5(25/3) = 125/3 \approx 41.667$