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Oliga [24]
3 years ago
15

25 POINTS!!!!! add. express your answer as a fraction. Do not include spaces in your answer 5 1/4+ 15.5

Mathematics
2 answers:
ICE Princess25 [194]3 years ago
8 0

Answer:

20\frac{3}{4}

Step-by-step explanation:

=> 5\frac{1}{4} + 15\frac{1}{2}

=> \frac{21}{4}+ \frac{31}{2}

=> \frac{21+62}{4}

=> \frac{83}{4}

=> 20\frac{3}{4}

ss7ja [257]3 years ago
5 0

Answer:

The answer is 83/4

Step-by-step explanation:

5 1/4+15.5

21/4+15.5

Taking LCM

21/4+15.5*4/1*4

21/4+62/4

83/4

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A lamp was on sale for 25% off its regular price of $80. Craig had a coupon that took an additional 25%
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Answer:

$45

Step-by-step explanation:

The sale price changed from $80 to 60, then with the coupon another 25% was taken off leading it to come to a price of $45

$80 x .75 = 60

$60 x .75 = 45

(.75 is for the price of the original value that he will be paying later)

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In any triangle ABC, which of the relations
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ab+bc>can is the correct answer

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From the sum of 2 and -11, subtract the sum of 2 and -6<br>​
jolli1 [7]

Answer: -5

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7 0
3 years ago
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Find the inverse of the function y = x2 – 12
vivado [14]

Answer: y=\sqrt{x+12}

Step-by-step explanation:

I hope you mean y = x² - 12 and not y = 2x - 12.

You switch the y and x variables:

x = y² - 12

And solve for y:

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7 0
3 years ago
Solve,justify and check: 3(7+5n)=6n+6(1+4n)
vlabodo [156]

Answer:

1=n

Step-by-step explanation:

Step 1- Distribute into the parenthesis.

7(3)+5(3)n= 6n+1(6)+4(6)n

Step 2- Multiply

21+15n= 6n+6+24n

Step 3- Add common variables to simplify.

21+15n= (24n+6n)+6

21+15n= 30n+6

Step 4- Subtract the smallest variable to both sides.

21+15n= 30n+6

   -15n  -15n

21= 15n+6

Step 5- Subtract 6 to both sides.

21= 15n+6

-6           -6

15= 15n

Step 6- Divide both sides by 15.

<u>15</u>= <u>15n</u>

15   15

1=n

4 0
3 years ago
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