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kramer
3 years ago
8

A television is advertised for K2000 cash or on terms of 10% deposit and K80 per month for 3

Mathematics
1 answer:
lilavasa [31]3 years ago
3 0

Answer:

a. K3080

Step-by-step explanation:

K2000×10/100=K200

K80×36months=2880

K2880+K200=K3080

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Find two consecutive positive even integers such that the square of the first decreased by 64 equals 3 times the second.
IRINA_888 [86]

Answer:

10 and 12

Step-by-step explanation:

let the consecutive even integers be n and n + 2 , then

n² - 64 = 3(n + 2) ← distribute parenthesis

n² - 64 = 3n + 6 ( subtract 3n + 6 from both sides )

n² - 3n - 70 = 0 ← in standard form

(n - 10)(n + 7) = 0 ← in factored form

Equate each factor to zero and solve for n

n - 10 = 0 ⇒ n = 10

n + 7 = 0 ⇒ n = - 7

Since n must be a positive even integer then n = 10 and n + 2 = 10 + 2 = 12

The 2 numbers are 10 and 12

8 0
2 years ago
Standard form for 69,108
andre [41]
The standard form for 69,108 is 69,108.
3 0
3 years ago
Helppp! idk why its needs to be 20 charactes so i wrote this
marin [14]
This should be 1.35, sorry if it’s wrong
6 0
3 years ago
Read 2 more answers
9. Aaron has a lemonade business. If he sells each glass of lemonade for $2.75, and he sold 11
marin [14]

Answer:

$27.75

Step-by-step explanation:

Multiply $2.25 by 11 to get the answer

4 0
3 years ago
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John and Gary share a workload. At a certain point, John worked 2 more hours than Gary. The next day, John has worked 4 of Gary’
il63 [147K]
If these both men were working at normal hours, and then, (John) worked "2 more hours" than Gary has, this would just mean that he has worked more.

x+2= x+2.

Now if John has worked the double amount, 4 more times than Gary's usual hours, this would mean something quite different.

Then the expression would look like, (x+2×4x)

We don't know how many hours are the "usual hours", this is what "x" would then represent.

John has then worked (4×2+x) more hours than Gary.

Your answer: (4×2+x)
4 0
3 years ago
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