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stira [4]
3 years ago
14

8x + 7y + 6z– 5x – 4y - 3z

Mathematics
1 answer:
borishaifa [10]3 years ago
4 0
8x-5x+7y-4y+6z-3z
3x+3y+3z
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Evaluate when a=15:2(a-5)+2
sasho [114]

Answer:

22

Step-by-step explanation:

if a=15

then, 2(a-5)+2= 2(15-5)+2 = 2(10)+2= 20+2=22

7 0
3 years ago
What are all the fractions that are between 1/2 and 1.
Oksanka [162]

Answer:

2/4, 3/5,3/4, 2/3,13/25, 27/50 11/20, 14/25, 29/50,31/50, 63/100,16/25,33/50,17/25,7/10,18/25,37/50,19/25,77/100,39/50,4/541/50, 83/100, 21/25 , 17/20, 43/50 , 87/100,22/25,9/10, 91/100, 23/25, 93/100, 47/50, 19/20 , 24/25  97/100, 49/50,99/100(note that I did not state all the fractions between 1/2 and 1)

Step-by-step explanation:

Firstly one half(1/2) represents 0.50 as a decimal and 1 would be 1.00

This is like saying finding Fractions that give you percentages between 50% and 100%

for example:

you could simplify 52/100 and get 31/50

31/50 as a decimal would be 0.52  and 0.52 falls between(0.50 and 1.00) 1/2 and 1

example 2: 89/100= 0.9 (same as0.90) and [90/100] is same as 9/10 = 0.9

0.90 or 0.9 (zero point nine) is not the same as 0.09(zero point zero nine

If you are using a casio calculator, you can simplify the fraction by putting in your numerator then pressing |a b/c| button then enter the denominator, then the calculator should simplify the fraction, if the fraction remains the same, this means that it cant be further simplified.if your calculator has

| a b/c| then you can also use it.

or use an online calculator or simplify if you wish

To <em>find the decimal of that fraction you can simply divide the numerator by the denominator, Example; 82/100 is same as 0.82 and 41/50 is same as 0.82.</em>

5 0
2 years ago
The parking lot is 4 km wide. The area of the parking lot is 24 kilometers. What is length of the parking lot?
dolphi86 [110]
Answer: 6km


Reason: The area of a rectangle is length times width equals area so to find length from with in the area you divide area by height. 24/4=6
6 0
3 years ago
Read 2 more answers
7% of what length is 200 feet ​
Alex17521 [72]

Answer:

Roughly 2857.14

Step-by-step explanation:

7 0
3 years ago
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I add 7 to a certain number. I double the result. My final answer is 34. What was my number?​
Ksju [112]

Answer:

The number is 10.

Step-by-step explanation:

2(7+x)=34\\14+2x=34\\2x=20\\x=10

7 0
3 years ago
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