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evablogger [386]

2 years ago

15

Mike jogged 6 laps around a 0.25-mile track on Monday and 7 laps on Tuesday. How many miles did he jog on Monday and Tuesday com

bined?

1 answer:

Triss [41]2 years ago

8 0

Answer:

3.25 miles

Step-by-step explanation:

Combine the total laps by doing 6 + 7 to get 13. Then, multiple 13 by 0.25 to get your sum of 3.25 miles.

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Andy drove 825 miles to California. The trip takes him 17 hours. He uses 38 gallons of gas on the trip, which cost him $125

babunello [35]

48 is the average speed

he uses 7.3 dollars per hour

6.6 per mile

21.7 gallons per mile

3.20 dollars per gallon of gas

these are the answers I could get

3 0

3 years ago

19) A submarine ascended from 56.8 meters under the sea level to 27.4 meters under the sea level.

ElenaW [278]

Answer:

29.4 meters

Step-by-step explanation:

Given the following :

A submarine ascended from 56.8 meters under the sea level to 27.4 meters under the sea level.

distance it moved between two positions. Use the "distance on the number line "formula

Initial Position or distance of submarine before ascension = 56.8 meters

Final position after ascension = 27.4 meters

The distance moved by the submarine between the two positions can be obtained by.

(Initial distance - Final distance)

(56.8 - 27.4) = 29.4 meters

5 0

3 years ago

What is the value of the expression. -8-(-3) <br> = -8 blank 3 <br> = blank

Mashutka [201]

Answer:

Step-by-step explanation:

-(-)=+

so -8-(-3)=-8+3

=-5

6 0

3 years ago

Solve <br><img src="https://tex.z-dn.net/?f=2x%20%2B%205%20%3D%2012" id="TexFormula1" title="2x + 5 = 12" alt="2x + 5 = 12" alig

VMariaS [17]

Answer:

x=3.5

Step-by-step explanation:

subract 5 on the other side, than divide by 2

8 0

2 years ago

The average value of two positive numbers is 30% less than one of the two numbers. By which percentage is average value bigger t

Viefleur [7K]

Answer:

75% bigger

Step-by-step explanation:

Let the first number be x and the second be y.

So:

$Average = \frac{x + y}{2}$

And:

$Average = (1 - 30\%) * x$ -----30% less than x

Substitute $Average = (1 - 30\%) * x$ in $Average = \frac{x + y}{2}$

$\frac{x + y}{2} = (1 - 30\%) * x$

$\frac{x + y}{2} = (1 - 0.30) * x$

$\frac{x + y}{2} = 0.70 * x$

$\frac{x + y}{2} = 0.70x$

Cross multiply

$x + y = 0.70x * 2$

$x + y = 1.40x$

Collect like terms

$1.40x - x = y$

$0.40x = y$

Make x the subject

$x = \frac{y}{0.40}$

$x = 2.50y$

So, the average is:

$Average = (1 - 30\%) * x$

$Average = (1 - 30\%) * 2.50y$

$Average =0.70 * 2.50y$

$Average =1.75y$

Rewrite as:

$Average =(1 + 0.75)y$

Express as percentage

$Average =(1 + 75\%)y$

This means that the average is 75% bigger than the second number

6 0

2 years ago