High School

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Tentukan:

2) Konstanta [tex]$a$[/tex]
3) Variabel
- Koefisien [tex]$p$[/tex]
- Koefisien [tex]$a$[/tex]
- Koefisien [tex]$r$[/tex]

Tentukan:

[tex]\[(2p + a) \cdot (20 + 5a)\][/tex]

[tex]\[
\begin{array}{l}
6.627,351 - 549,43 \\
7.136,51 - 10,700 \\
8 \frac{1}{6} \cdot \frac{2}{3} \cdot \frac{1}{4} \cdot 60\% \text{ (dari terbesar)} \\
9 \cdot 0,75 \cdot \frac{2}{10} - 60\% \text{ (dari terkecil)}
\end{array}
\][/tex]

10. Doni membeli sepatu seharga 200.000 dan anggur seharga 300.000. Doni mendapat diskon sebesar [tex]$5\%$[/tex]. Berapa yang harus dibayar Doni?

12. Sederhanakan!

A. [tex]$3x - 6y + 2z + y + 10z - 12$[/tex]
B. [tex]$-4p + 2q - 5p + 10q + 14$[/tex]

14. Kurangkan [tex]$10a + 6b - 17c + 1$[/tex] dengan [tex]$12 - 4b + 3c$[/tex].

16. Substitusikan [tex]$x=2$[/tex], [tex]$y=-1$[/tex] ke dalam [tex]$A = -8x + 2y - 10$[/tex].

Answer :

Sure! Let's go through the problem step-by-step.

Doni is purchasing two items: a serule that costs 200,000 and a bottle of wine that costs 300,000. He receives a discount of 5% on these purchases. We're tasked with finding out how much Doni has to pay after applying the discount.

Here are the steps:

1. Calculate the Total Cost:
- First, add the cost of the serule and the wine together.
- Total cost before discount = 200,000 + 300,000 = 500,000.

2. Calculate the Discount Amount:
- The discount is 5% of the total cost.
- To find out how much that is, calculate 5% of 500,000.
- Discount amount = (5/100) * 500,000 = 25,000.

3. Calculate the Final Amount to Pay:
- Subtract the discount amount from the total cost to find out how much Doni needs to pay.
- Amount to pay = 500,000 - 25,000 = 475,000.

So, Doni has to pay 475,000 after the discount is applied.

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