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3 years ago

I need this working of this question

Mathematics

1 answer:

CaHeK987 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

15+7=22

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Rafael is choosing a 2-letter password from the letters A, B, C, D, and E. The password cannot have the same letter repeated in

sasho [114]

Answer:

there are 6 available passwords.

Step-by-step explanation: abcd

there are:

3 0

4 years ago

Enjal paid Rs 15,255 for smart phone with 10% discount and 13% vat. Find marked price of that smart phone.

OlgaM077 [116]

Answer:

The marked price of the smart phone is Rs 15,000.

Step-by-step explanation:

We proceed to explain step by step how to determine the marked price of the smart phone:

1) Divide the resulting price by the VAR factor:

$C' = \frac{C''}{1 + \frac{r}{100} }$ (1)

Where:

$C''$ - Resulting price, measured in rupees.

$C'$ - Price of the product after discount, measured in rupees.

$r$ - VAT rate, measured in percentage.

If we know that $C'' = 15,255\,INR$ and $r = 13$ , then the price of the product after discount is:

$C' = \frac{15,255\,INR}{1+\frac{13}{100} }$

$C' = 13,500\,INR$

2) Divide the price of the product after discount by the discount factor:

$C = \frac{C'}{1-\frac{r'}{100} }$ (2)

Where:

$C$ - Marked price of the product, measured in rupees.

$r'$ - Discount rate, measured in percentage.

If we know that $C' = 13,500\,INR$ and $r' = 10$ , then the marked price of the product is:

$C = \frac{13,500\,INR}{1-\frac{10}{100} }$

$C = 15,000\,INR$

The marked price of the smart phone is Rs 15,000.

8 0

3 years ago

10) (k - 9) (5k - 8)

zalisa [80]

5k²-8k-45k+72 = 5k²-53k+72

Answer: 5k² - 53k + 72

7 0

4 years ago

(04.01, 04.02 HC)

lord [1]

I’ve broken it down into the parts that you’ve highlighted:

Part A:
x = 25 + y
x + y = 95

Part B:
I’m using the substitution method to find the amount of time that Eric plays volleyball, so:
x + y = 95
x = 95 - y
95 - y = 25 + y
70 = 2y
y = 35, 35 minutes spent playing volleyball

Part C: i don’t completely understand the question, perhaps there was a typo?

5 0

2 years ago

Solve for x 5^x-2=2^x

12345 [234]

Answer:

x ≈ 0.82476307

Step-by-step explanation:

6 0

3 years ago