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Paha777 [63]
3 years ago
10

Allie is deciding to take her vacation she wrote each year on a separate piece of paper...

Mathematics
1 answer:
rosijanka [135]3 years ago
3 0
The answer is J, 23/100.
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A migrating bird flies 312 miles in 13 hours. How many miles does it fly in 5 ​hours?
irinina [24]
The answer is 120 miles , because it is a proportion 
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3 years ago
Hello i would need help with this
Vika [28.1K]
if u download photomath and take a picture of each problem it will give u a solution to each problem along with the steps of how they got that answer
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I don't understand how this would work. Ive tried to figure it out but i don't know.
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3 years ago
How many pennies would be in a tower that is 10 miles<br> high?
Rufina [12.5K]
Just measure the width (or height, if you'll be stacking the pennies
a mile high) of a penny, then divide 5280 feet by whatever you find.
This is a great activity for a class, and in fact a good way to start
the project. First take one penny, and work out an answer. Then get
100 pennies, and measure them; do the same calculation to see how many
pennies it will take to make a mile. There will probably be a
difference, because you can measure 100 pennies more accurately than a
single penny. Or maybe you have a micrometer that will measure one
penny precisely. Which is better can be a good discussion starter. And
don't forget to try it in metric, too.

Just to illustrate, using a very rough estimate of a penny's width,
let's say a penny is about 3/4 inch wide. The number of pennies in a
mile will be

5280 ft 12 in 1 penny
1 mile * ------- * ----- * ------- = 5280 * 12 * 4/3 pennies
1 mi 1 ft 3/4 in

This gives about 84,480 pennies. (This method of doing calculations
with units is very helpful, and would be worth teaching.)

If we measure 100 pennies as 6 ft 1 in, we will get

5280 ft 100 pennies
1 mile * ------- * ----------- = 5280 * 100 * 12 / 73 pennies
1 mi 6 1/12 ft

This gives us 86794.5205 pennies in a mile.
5 0
3 years ago
What number goes into 97?
Tresset [83]
<span>97 is a prime number because it has no factors but 1 & itself.</span>
8 0
3 years ago
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