Alexandra Ran 2 7/10 miles on Monday. She ran twice as far on Tuesday. How far did Alexandra run in all on those days?

Answers

Answer 1

Answer: 8 1/10 miles in total and nice pika :)

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What is the simplest form of 2/10?

Answers

To get to the simplest form you have to divide numerator and denominator by numbers they can both be divided by, until you get to a fraction where you can't divide both anymore getting an integer as a result.
Here you can only divide by 2 and you get 1/5. That's the simplest form, if you kept dividing you'd get decimals, but the simplest form must be integers.

Choose like terms:

3x, y, 2x

Answers

3x and 2x are alike terms, as they have the same variable

Estimate the sum of 299 and 388

Answers

For this case we have the following numbers:

299

388

Let's round up each of the numbers to the nearest hundred,

We have then:

299 = 300

388 = 400

We note that now we have two numbers whose approximation is easier to add.

We have then:

300 + 400 = 700

Answer:

The sum of 299 + 388 is approximately:

700

An estimate of the sum 299 + 388 would be 300 + 400. The answer is therefore around 700.

Need help question 4

Answers

You need to find what 3 is if 5 is $520,000
$520,000 divided by 5 = 104,000
104,000 x 3 = 312,000

Therefore 3 is 312,000
Hope this helps :3

A pair of Shoes are 40% off, regular price is n dollars, what’s the algebraic expression of the sale price

Answers

Answer:

.6n

Step-by-step explanation:

If we get 40 % off, we still have to pay 100-40 or 60%

The original price is n

We pay 60% of n

60%*n

.60*n

.6n

F(x) = x^2 what is the derivative

Answers

Answer:

$\displaystyle F'(x) = 2x$

General Formulas and Concepts:

Calculus

Differentiation

Derivatives
Derivative Notation

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle F(x) = x^2$

Step 2: Differentiate

Basic Power Rule: $\displaystyle F'(x) = 2x$

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

Answer:

$F^(')$ (x) = 2x

Step-by-step explanation:

F(x) = x²

differentiate F(x) with respect to x

$F^(')$ (x) = 2x

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Abby can buy T-shirts in packs of 5 for $11.25 or in packs of 2 for $5.98. How much money does she save by buying 20 T-shirts at the better price?