3 years ago

Express -5 1/4 as a decimal

Mathematics

2 answers:

mash [69]3 years ago

6 0

-5.25 if you literally meant -5 1/4

rewona [7]3 years ago

5 0

I believe it would be -5.25

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If 9 were subtracted from three times a number, the result would be the same as if 4 were added to twice the number. what is the

amid [387]

3x-9=2x+4
3x-9+9=2x+4+9
3x=2x+13
3x-2x=2x-2x+13
x=13
Check:
3(13)-9=2(13)+4
39-9=26+4
30=30

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3 years ago

Can you construct a triangle that has side lengths 2 yd, 9 yd, and 10 yd?

yan [13]

Yes

The rule to check if a triplet of numbers can represent the sides of a triangle is the following: the sum of the length of two sides must exceed the third one.

This happens for all possible couples in your case:

$2+9=11>10$

$2+10=12>9$

$9+10=19>2$

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3 years ago

Convert 9 over 4 into mixed numbers

Maslowich

9/4
well, 4 times 2 is 8, there would be a quarter left over
answer: 2 1/4

so it would be 2 and a quarter.

Hope this helped :)

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3 years ago

A family went on vacation and used 45.3 gallons of gasoline to travel 150 miles. How many total gallons of gasoline will they ne

victus00 [196]

Answer:

d) $105.7\ \text{gallons}$

Step-by-step explanation:

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$200\ \text{miles}$ requires $200\times \dfrac{45.3}{150}=60.4\ \text{gallons of fuel}$

So, total amount of gasoline required for the trip is $60.4+45.3=105.7\ \text{gallons}$ .

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3 years ago

Based on Pythagorean identities, which equation is true?

balu736 [363]

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