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Keith_Richards [23]
3 years ago
14

Please help with this question!!

Mathematics
1 answer:
Over [174]3 years ago
6 0

5/8

A. Real number.  True, all rational numbers are real;  SELECT ME

B. Non-real; nope, it's real, so not non-real

C. Irrational; nope, it's a rational number, the ratio of integers

D. Rational.  Natural numbers on top and bottom, bottom not zero.   SELECT ME.

E. Integer; no, it's a fraction.

F. Whole; that's a non-negative integer, nope.

G. Natural, that's a non-zero whole number, nope.

Answer: A D

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Varvara68 [4.7K]

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Lisa drove 240 miles, then increased her speed by 20 miles per hour for 540 miles. If the second part of the drive took 3 hours
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We have been given that Lisa increased her speed 20 mph than initial speed over next 540 miles. So her speed on next 540 miles will be u+20 mph.

Further more we are given that she took 3 hours more to complete the next 540 miles of the trip than she took in completing initial 240 miles. So she took (t+3) hours in completing next 540 miles.

Since we know \text{Speed}=\frac{\text{Distance}}{\text{Time}}

Now we will substitute our given values in our equation and find out the unknowns. After substitution we will get two equations and two unknowns.

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Now we will substitute equation 1 in equation 2

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Upon solving this equation, we get

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B. 33x+25=33x+25

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