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2 years ago

What is the value of 3(y + 4) – (x – 1) when x = 3 and y = 2

Mathematics

1 answer:

olga_2 [115]2 years ago

7 0

Answer:

Step-by-step explanation:

First, substitute the values of the variables into the expression:

3(y + 4) - (x - 1)

3(2 + 4) - (3 - 1)

Now, simplify both parentheses:

3(6) - 2

18 - 2

Finally, simplify:

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Question 3,4&5 Cindy bought a car for $21,330. A few years later she sold the car for $19,700.find the percent of change in

san4es73 [151]

The change in value was 8% which amounts to $1630

Further explanation:

The change in value is calculated by using the initial price and selling price of the car.

Given

Purchase Price = P = $21330

Selling Price = S = $19700

As the selling price is less than the purchase price, Cindy had loss.

$Loss=L= Cost\ price-selling\ price\\=21330-19700\\=\$1630$

Percentage of loss will be calculated as:

$Percent\ loss=\frac{1630}{21330}*100\\=8\%$

The change in value was 8% which amounts to $1630

Keywords: Loss, Percentage loss

Learn more about profit and loss at:

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3 years ago

Find the product of 27×6×60 then explain how you would use mental math to find the product of 27×600

Ne4ueva [31]

27x6x60=9,720 *You can use mental math by multiplying 27 by 6 and adding the 2 zeros to the end of the product*

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2 years ago

Bentley is going to invest $98,000 and leave it in an account for 7 years. Assuming

den301095 [7]

Answer:

The rate of interest for compounded daily is 2.1 6

Step-by-step explanation:

Given as :

The principal investment = $ 98,000

The Time period for investment = 7 years

Let The rate of interest compounded daily = R %

The Amount at the end up = $ 114,000

<u>From compounded method</u>

Amount = Principal × $(1+\dfrac{rate}{365\times 100})^{365\times Time}$

Or, $ 114,000 = $ 98,000 × $(1+\dfrac{R}{365\times 100})^{365\times 7}$

Or, $\frac{114000}{98000}$ = $(1+\dfrac{R}{36500})^{2555}$

or, 1.16326 = $(1+\dfrac{R}{36500})^{2555}$

or, $(1.16326)^{\frac{1}{2555}}$ = 1 + $\frac{R}{36500}$

1.00005919 - 1 = $\frac{R}{36500}$

or, 0.00005919 = $\frac{R}{36500}$

∴ R = 0.00005919 × 365000 = 2.16

Hence the rate of interest for compounded daily is 2.1 6 Answer

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3 years ago

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erik [133]

Answer:

r = 6.4/(1+sin(θ))

Step-by-step explanation:

As the attachment shows, for the given directrix and eccentricity, the equation is ...

$r=\dfrac{ed}{1+e\sin{\theta}}\\\\r=\dfrac{1.6\cdot 4}{1+1.6\sin{\theta}}\\\\\boxed{r=\dfrac{6.4}{1+\sin{\theta}}}\qquad\text{matches the 2$^{\text{nd}}$ choice}$

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2 years ago

-4/9 repeating decimal

Liula [17]

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3 years ago