What is the sum of 2/5 and 2/4?

Answers

Answer 1

Answer: Make sure they are under the same denominator:

2/5 x 4 = 8/20
2/4 x 5 = 10/20

= 18/20
= 9/10 (simplified)

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If y^8= 4 and y^7=3/x, what is the value of y in terms of x?

Answers

y^8 = y^7 * y => 4 = (3/x) *y => y = (4x)/3;

Please help? I'll fail if I miss this....Which triangle is similar to triangle SRT? (6 points)

Triangle QRP

Triangle PST

Triangle PQR

Triangle TRP

Answers

Answer:

TRP

got the answer right on the test!

In which of the following stores would you pay the least amount for an item that is priced $360? Store A: Sale of 10% off and a successive discount of 10% off. Store B: Sale of 15% with no additional discount. Store C: Sale of $35 off and a successive discount of 10% off

Answers

The right answer for the question that is being asked and shown above is that: "A: Sale of 10% off and a successive discount of 10% off." The store that would let you pay the least amount for an item that is priced $360 is the Store A.

The correct answer is Store A: Sale of 10% off and a successive discount of 10% off.

Further explanation:

Discount is the reduction of amount in the cost price of any item.

The following formula for discount can be used when the rate of discount and the cost price is given.

$\boxed{{\text{Discount}}=\left( {\frac{{{\text{rate of discount}}}}{{100}}}\right)*{\text{cost price}}}$

The following formula for selling price can be used when the discount and the cost priceis given.

$\boxed{{\text{Selling price}}={\text{Cost price}}-{\text{Discount}}}$

Given:

The price of an item is $\boxed{\$360}$ .

Calculation:

Store A is allowing 10% off and then allowing a successive discount of 10%.

The first discount of an item by the use of the formula can be calculated as,

$\begin{aligned}{\text{discount}}&=\left( {\frac{{10}}{{100}}}\right)* 360\n&= 36\n\end{aligned}$

Now, the selling price after allowing the first discount is,

$\begin{aligned}{\text{Selling price}}&={\text{360}}-36\n&=324\n\end{aligned}$

The successive discount on the item can be calculated as,

$\begin{aligned}{\text{discount}}&=\left( {\frac{{10}}{{100}}}\right)*324\n&=32.4\n\end{aligned}$

Now, the selling price after allowing second discount is,

$\begin{aligned}{\text{Selling price}}&={\text{324}}-32.4\n&=291.6\n\end{aligned}$

Therefore, the amount we have to pay to Store A is $\boxed{\$291.6}$ .

Store B is giving 15% off with no additional discount.

The discount of an item by the use of the formula can be calculated as,

$\begin{aligned}{\text{discount}}&=\left( {\frac{{15}}{{100}}}\right)*360\n&=54\n\end{aligned}$

Now, the selling price after allowing discount can be calculated as,

$\begin{aligned}{\text{Selling price}}&={\text{360}}-54\n&=306\n\end{aligned}$

Therefore, the amount we have to pay to Store B is $\boxed{\$306}$ .

Store C is giving $35 off and then allowing a successive discount of 10%.

Now, the selling price after allowing first discount can be calculated as,

$\begin{aligned}{\text{Selling price}}&={\text{360}}-35\n&=325\n\end{aligned}$

The successive discount on the item can be calculated as,

$\begin{gathered}{\text{discount}}=\left( {\frac{{10}}{{100}}}\right)*325\n=32.5\n\end{gathered}$

Now, the selling price after deducting second discount can be calculated as,

$\begin{aligned}{\text{Selling price}}&={\text{325}}-32.5\n&=292.5\n\end{aligned}$

Therefore, the amount we have to pay to Store C is $\boxed{\$292.5}$ .

It can be clearly seen that if we buy an item which is priced at $360 from Store A then we have to pay least amount of $291.6.

Learn more:

1. Learn more about profit and loss brainly.com/question/2479097

2. Learn more about domain and range of thefunctionbrainly.com/question/3412497

3. Learn more about the word problem for magnitude of the acceleration brainly.com/question/1597065

Answer details:

Grade: Middle school

Subject: Mathematics

Chapter: Profit and Loss

Keywords: Percentage , profit , loss, discount, cost price, selling price, marked price, rate of discount, amount, succesive discount, reduction, maximum, price .

What is the first step in writing f(x) = 6x2 + 5 – 42x in vertex form?Factor 6 out of each term.
Factor 6 out of the first two terms.
Write the function in standard form.
Write the trinomial as a binomial squared

Answers

f(x) = 6x² + 5 - 42x

first step in writing the f(x) in vertex form? WRITE THE FUNCTION IN STANDARD FORM.

f(x) = 6x² - 42x + 5

Exponents must be in decreasing order.

Answer:

Option 3rd is correct

Write the function in standard form.

Step-by-step explanation:

The standard form of the quadratic equation is given by:

$y=Ax^2+Bx+C$

As per the statement:

Given the function:

$f(x) = 6x^2+5-42x$

We have to find the first step writing f(x) vertex form.

Firstly, write the given function in standard form

by definition we have;

$f(x) = 6x^2-42x+5$

Therefore, the first step writing f(x) vertex form is, Write the function in standard form.

Multiply. Enter your answer in scientific notation.
(7 x 10^*13) (3.39 x 10^*5)=

Answers

Step-by-step explanation:

(7 x 10^*13) (3.39 x 10^*5)

= 23.73 × 10¹⁸

=2.373 × 10¹⁹

Hello there!

(7x10^13)(3.39x10^5)

70,000,000,000,000

339,000

2.373x10^19

Hope this helps!

#HaveAnAmazingDay

$(: GraceRosalia :)$

What is the maximum value of the function f(x)= 12 - 3sin (3pi/2 x)

Answers

The lowest value of sinα is -1.

When x=1, you get:

$f\left( x \right) =12-3\sin { \left( \frac { 3 }{ 2 } \pi \right) } \n \n =12-3\left( -1 \right) \n \n =12+3\n \n =15$

So the maximum value of the function is 15.

f(x) = 12 - 3sin(3π/2x)
f(x) = 12 - 3sin(9.42/2x)

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