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3 years ago

What method should I use to solve this?

Mathematics

1 answer:

tekilochka [14]3 years ago

8 0

Answer:

$9.10

Step-by-step explanation:

$455 \div 50 = 9.1$

455 ÷ 50 = 9.1. The student tickets cost $9.10. (I think)

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What is the interquartile range of a data set? what does the IRQ tell you about a data set?

Naddik [55]

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3 years ago

To decorate 6 dozen cupcakes with red hot candies, Nan needs about 550 red hots. Which two sacks of candy would be the best buy?

olasank [31]

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Is there supposed to be a picture?

Step-by-step explanation:

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2 years ago

Find inverse of y=1/2x+3

yKpoI14uk [10]

Answer: f⁻¹(x)=2x-6

Step-by-step explanation:

To find the inverse of an equation, you replace y with x and x with y. Then, you solve for y.

y=1/2x+3 [replace y with x and x with y]

x=1/2y+3 [subtract both sides by 3]

x-3=1/2y [multiply both sides by 2]

y=2(x-3) [distribute]

y=2x-6

Now, we know the inverse function is f⁻¹(x)=2x-6.

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3 years ago

If i read 90 pages every 30 minutes how many pages can i read in 1 minute

Katen [24]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

A ladder 10 feet long rests against a vertical wall. Initially, the top of the ladder is 8 feet above the ground. If the top of

lora16 [44]

Step-by-step explanation:

Let vertical height of ladder from ground be y and

horizontal distance of the base of the ladder from the wall be x respectively.

Length of the ladder = l (constant) = 10 ft

Using Pythagoras theorem:

${l}^{2} = {y}^{2} + {x}^{2}$

Differentiate both sides w.r.t time

$0 = 2y \frac{dy}{dt} + 2x \frac{dx}{dt}$

$y \frac{dy}{dt} + x \frac{dx}{dt} = 0$

We know that (After 1 sec, y = 6 ft and x = 8 ft ; dy/dt = 2 ft/sec)

$6\times 2 + 8\frac{dx}{dt} = 0$

$\frac{dx}{dt} = - 1.5 ft \: per \: sec$

( Ignore - ive sign)

Therefore, bottom of the ladder is sliding away from the wall at a speed of 1.5 ft/sec one second after the ladder starts sliding.

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3 years ago