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4 years ago

suppose the leftmost digits of two numbers are 8 and 3.can you tell which number is greater?explain.

1 answer:

3 0

No, you can not tell because 8 could be in the tens place of one number, while 3 could be in the thousands place of anothrf number.

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Robert earned 10$ which is 4 less than twice what Eric earned ,how much did Eric earn?

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3 years ago

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Neko [114]

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3 years ago

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4 years ago

PLZ help picture included

cupoosta [38]

Answer:

4 miles

Step-by-step explanation:

Let

x ----> the time to returned back biking in hours

d ---> the distance in miles

s ---> speed in miles per hour

Remember that

The speed or rate is equal to divide the distance by the time

$s=\frac{d}{t}$

The distance is equal to multiply the speed by the time

$d=st$

we know that

$18\ min=\frac{18}{60}\ hours$

The distance to his friend's house and the distance of return is the same

$10x=4(x+\frac{18}{60})$

solve for x

$10x=4x+\frac{18}{15}$

subtract 4x both sides

$10x-4x=\frac{18}{15}$

$6x=\frac{18}{15}$

$x=\frac{1}{5}\ hours$

The total distance of the round trip is

$y=10x+4x+\frac{18}{15}$

substitute the value of x

$y=10(\frac{1}{5})+4(\frac{1}{5})+\frac{18}{15}$

$y=2+2=4\ miles$

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3 years ago

Number bonds subtract ten

Ymorist [56]

You can arrange it any way as long as you keep the 2 as the very first number

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3 years ago