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ad-work [718]
3 years ago
8

12 (5x-1) = 7x (2x +2)

Mathematics
2 answers:
murzikaleks [220]3 years ago
7 0
60x - 12 = 14x^2 + 14x

Subtract 60x & Combine

-12 = 14x^2+14x-60x
-12= 14x^2-46x
Add 12
0= 14x^2-46x-14
erica [24]3 years ago
3 0
12(5x-1)=7(2x+2)
Distribute 12 and 7

60x-12=14x+14
Add 12 to each side

60x=14x+26
Subtract 14x on each side

46x=26
Divide by 46 on each side

x=26/46 or x=13/23
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Solve 48=4b-4(4b-3) and show work.
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Answer:

Step-by-step explanation:

4b - 16b + 12 = 48

-12b + 12 = 48

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4 0
3 years ago
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3 years ago
Banabas must pay his ex-wife an amount of R350 000 in two years’ time. Calculate the amount that he must invest today to have th
White raven [17]

Answer:

He must invest R297 521 today.

Step-by-step explanation:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Banabas must pay his ex-wife an amount of R350 000 in two years’ time.

This means that t = 2, A(t) = 350000

Interest rate of 8.15% per annum compounded monthly:

This means that r = 0.0815, n = 12.

Amount he must invest today:

This is P. So

A(t) = P(1 + \frac{r}{n})^{nt}

350000= P(1 + \frac{0.0815}{12})^{2*12}

P = \frac{350000}{(1 + \frac{0.0815}{12})^{2*12}}

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4 0
3 years ago
-3(1+6r)+12=14. solve for r
emmasim [6.3K]

Answer: r = -5/18


Step-by-step explanation: You solve -3(1+6r)+12=14

-3-18r+12=14 (When distributed)

-18r+9=14

-18r=5

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6 0
3 years ago
Read 2 more answers
PLEASE ANSWWR ASAP thanks
AleksAgata [21]
(4x - 8) = 80/2
4x - 8 = 40
4x = 48
x = 12
answer
x = 12
4 0
3 years ago
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