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tatuchka [14]
3 years ago
15

If a = 2, b = 4 and c = 5, then what is the value of this expression? 5a + 3c - 2b

Mathematics
1 answer:
skad [1K]3 years ago
8 0
Its quite simple. All you have to due is substitute the numbers they gave you for each letter. So.... it would look like this > 5(2) + 3(5) - 2(4) = ? Now all you have to do is solve it! Hope this helps :)
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What is the solution to this equation -13x =25
abruzzese [7]

Answer:

-1 12⁄13

Step-by-step explanation:

-13x = 25 [Divide by -13]

x = -1 12⁄13

13 is your <em>divisor</em>, which will be your denominator, and the numerator is your <em>remainder</em><em>.</em><em> </em>Since 13 goes into 25 ONCE, 1 gets multiplied by 13 to get 13, then deduct that from 25 to get your remainder of 12. This is where you start putting the pieces together as a mixed number. Then attach the negative because whenever you divide a positive by a negative, you get a negative:

-25⁄13 = -1 12⁄13

I am joyous to assist you anytime.

3 0
3 years ago
83/10y-(38/11-11/4y)
IrinaK [193]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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lung cancer kills about 3,000 people per day. if 90% of the deaths from luung cancer are attributted to smoking, what is the rat
defon

Answer:

2700!

Step-by-step explanation:

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5 0
3 years ago
Hi! I need to get this answered right away asap! <br>Waht is 4500, divided by 23400?
ANEK [815]
According to a calculator, this is the answer: 0.1923076923. Hope this helped?
8 0
3 years ago
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For a sample variance of n = 36 that has a sample variance of 1,296, what is the estimated error for the sample?
lukranit [14]

Answer:

6

Step-by-step explanation:

Given :

Sample size, n = 36

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Standard deviation, s = √1296 = 36

S.E = 36/√36

S.E = 36/6

S.E = 6

Hence, estimated standard error = 6

7 0
3 years ago
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