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raketka [301]
3 years ago
5

The sum of two numbers is 48.if the smaller number is subtracted from the larger the difference is 12 find the number

Mathematics
2 answers:
yulyashka [42]3 years ago
8 0

Answer:

the two numbers are 30 and 18

Step-by-step explanation:

Let the two numbers be m and n then

m+n=48.............i)

m - n = 12 ...............ii)

Adding both equations

2m = 60

m = 30

Putting m = 30 in equation i

30 + n = 48

n = 48 - 30

n = 18

kvasek [131]3 years ago
7 0

Answer:

18

Step-by-step explanation:

30 + 18 = 48

30 - 18 = 12

Both true, so our solution is correct.

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Two negatives equal a positive, so its just like subtracting 50 and 30, but your answer will be a positive.
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James has just sold his motorbike for £1,890. He bought the motorbike for £2,700. What was his percentage loss? %
Usimov [2.4K]
£2.700 - £1890 = £810

<span>£ (money) -------------- percentage (%)
</span>2.700 -------------------- 100
810 ----------------------- x

2700*x = 810*100
2700x = 81000
x =  \frac{81000}{2700}
\boxed{x = 30}

Answer: 
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6 0
3 years ago
Please can you help me
NARA [144]
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2 years ago
Which expression is equivalent to 7z + 7z?
Ierofanga [76]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Consider the differential equationy′′+3y′−10y=0.(a) Find the general solution to this differential equation.(b) Now solve the in
RSB [31]

Answer:

Y= 2e^(5t)

Step-by-step explanation:

Taking Laplace of the given differential equation:

s^2+3s-10=0

s^2+5s-2s-10=0

s(s+5)-2(s+5) =0

(s-2) (s+5) =0

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Hence, the general solution will be:

Y=Ae^(-2t)+ Be^(5t)………………………………(D)

Put t = 0 in equation (D)

Y (0) =A+B

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Now take derivative of (D) with respect to "t", we get:

Y=-2Ae^(-2t)+5Be^(5t)   ....................... (E)

Put t = 0 in equation (E) we get:

Y’ (0) = -2A+5B

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2(i) + (ii) =>

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Now put B=2 in (i)

A=2-2

A=0

By putting the values of A and B in equation (D)

Y= 2e^(5t)

6 0
3 years ago
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