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2 years ago

if an airplane travels 660 mph how long will it take an airplane to travel to a distance of 2970 miles?

Mathematics

1 answer:

vazorg [7]2 years ago

4 0

Answer:

4 hours and 30 minutes.

Step-by-step explanation:

660 miles = 1 hour
1320 miles = 2 hours
1980 miles = 3 hours
2640 miles = 4 hours

There are only 330 miles left and that is half of 660mph so therefore it would only take half an hour for these last 330 miles.

So we know that it will be taking 4 hours, you would then add the 30 minutes which gives you 4 hours and 30 minutes.

Hope this helps!

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Daniel and Alice each earn money by babysitting. Daniel earned a total of $84 in a 5-week period. During a 6-week period, Alice

sweet [91]

Answer:12

Step-by-step explanation:

16 • 6= 96

96-84=12

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2 years ago

brent counted 10 red cards, 10 black cards and 20 blue cards. what is the ratio of red cards to other cards

Ber [7]

Red Cards = 10
Other Cards (Black + Blue) = 10+20 = 30

So, the ratio would be: 10/30 = 1/3

So, your final answer is 1/3

Hope this helps!

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3 years ago

Find the y-intercept and slope of the functions graph, and find the equation for the function

VikaD [51]

Answer:

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2 years ago

What is an equation of the line that is perpendicular to −x+2y=4 and passes through the point (−2, 1) ?

Elza [17]

Answer:

y=-2x-3

Step-by-step explanation:

Since our equation is in standard form Ax+By=C we must first manipulate the equation so that we have it in the slope-intercept form such that y=mx+b. Therefore:

$-x+2y=4\\2y=x+4\\\\y=\frac{x+4}{2}\\\\y=\frac{1}{2}x+2$

Therefore, our slope is 1/2 and our y-intercept is 2. Now in order to determine a perpendicular line to the one stated above we must then get the negative inverse of our slope meaning $\frac{1}{2}=-2$ (negative reciprocal). Now we must use the point slope formula:

$y=m(x-x_1)+y_1$

Where m is the slope, x1 is -2 and y1 is 1 (because of the ordered pair given). And so:

$y=-2(x-(-2))+1\\\\y=-2(x+2)+1\\\\y=-2x-4+1\\\\y=-2x-3$

Therefore, the line that is perpendicular to -x+2y=4 is y=-2x-3.

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3 years ago

A square has a perimeter of 52cm , what is the area ?

UNO [17]

✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧

Hello!

✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧

❖ The area is 169 square cm.

Find the value of each side (a square has 4 sides so divide by 4 ):

52/4 = 13

To find the area of a square, you only need 2 sides so multiply 2 sides:

13 x 13 = 139

Area = 139 square cm

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3 years ago