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vredina [299]
3 years ago
5

If the temperture rises from 4 to 15.5 percent what is the increase

Mathematics
1 answer:
fiasKO [112]3 years ago
8 0
The temperature increase is 11.5 

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An alloy consists of nickel, zinc, and copper in the ratio 2:7:9.
docker41 [41]
Zinc = 7/18
Divide 4.9 by 7 = 0.7
Multiply by 18 = 12.6

The answer is 12.6 lbs of alloy. Sorry if I'm wrong
4 0
3 years ago
Simplify the following expression 6X2 plus 8X -3 minus 3X2-6
Murrr4er [49]

Answer:

-24

Step-by-step explanation:

I´m guessing by the big x sign you want me to multiply so the first step in the equation is to multiply because of PEMDAS so(6*2)+(8*-3)-3*2-6,

so 6*2=12,8*-3=-24,-3*2=-6

12+-24-6-6,

12-24=-12,-6+-6=-12

-12+-12=-24

7 0
3 years ago
SinA/sinB=2/√3 and cosA/cosB=1/√2 ,tan^2B=?​
Talja [164]

Answer:

3/8 tan²A

Step-by-step explanation:

sinB = √3/2 sinA and cos B= √2 cosA (from given)

6 0
2 years ago
25 is 45% of what number
Oksi-84 [34.3K]

Answer: 55.56

Step-by-step explanation:

Let the unknown number be k

(45 x k) / 100 = 25

45k/100 = 25

multiply both sides by 100

45k = 25 x 100

45k = 2500

divide both sides by 45

k = 2500/45

k = 55.56

6 0
3 years ago
The sum of 9 and a number is less than 12. Which of the following
Fofino [41]

Answer:

9+x<12

Step-by-step explanation:

add 9 to an unknown number.

9+x

use the < less than symbol (instead of an equal sign) and write 12.

3 0
3 years ago
Read 2 more answers
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