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3 years ago

A equation to determine the number of minutes(t) that Raymond was on the trampoline

Mathematics

2 answers:

gtnhenbr [62]3 years ago

8 0

Answer: t=43.25-7/1.25=29 minuets

Step-by-step explanation:

he spent $43.25. he had to pay $7 first to get in. then for each minuet had to pay 1.25.

KatRina [158]3 years ago

4 0

Answer:

1.25(t)=43.25 or

7+1.25(t)=43.25

Step-by-step explanation:

Ok, so the total of his whole session costs him $43.25 so that would be what you want your outcome or equivalent to be. Then, he paid just the $7 to get in the Trampoline Center so the other dollar amount is $1.25 and that's for every minute spent on the trampoline. So t would go after 1.25.

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6/7 (7/6)x=5 (6/7)<br><br> what is the value of x?

Masja [62]

Answer:

x is 30/7

Step-by-step explanation:

You want to isolate x.

First, solve 5 * 6/7. The answer is 30/7.

Next, divide both sides by 6/7. This will cancel out the 6/7 on the left . For the right, when dividing fractions, you must take the reciprocal of the second fraction and multiply by it. So instead of having 30/7 divided by 6/7, you will have 30/7 * 7/6. The answer is 210/45 which simplifies to 5.

Third, you want to divide both sides by 7/6. Again the 7/6 on the left will be cancelled out. And you must do 5 * 6/7. In order to make the 5 look like a fraction to reduce confusion, you can set it over 1 (thus, you would do 5/1 * 6/7). The answer is 30/7.

You can plug it back into the equation to check.

3 0

3 years ago

Please help and explain

pogonyaev

Answer:

$x = 12$

Step-by-step explanation:

$3x - 1 + x + 7 = 54$

$4x + 6 = 54$

$4x + 6 - 6 = 54 - 6$

$4x = 48$

$\frac{4x}{4} = \frac{48}{4}$

$x = 12$

$3(12) - 1 + (12) + 7 = 54$

$36 - 1 + 12 + 7 = 54$

$35 + 12 + 7 = 54$

$35 + 19 = 54$

$54 = 54$

3 0

3 years ago

Read 2 more answers

The price of a wrist watch has decreased from $50 to $30.What is the percentage decrease in the price of the wrist watch

Anit [1.1K]

Answer:

It is 40% off!

Step-by-step explanation:

Since 50 x 2 is 100, you only have to double both numbers.

100 decreased to 60 is subtracting 40. It is 40% off!

4 0

3 years ago

You are the coordinator for a program that is going to take place at night in a rectangular amphitheater in the mountains. You w

White raven [17]

The equation to model the situation is $\mathbf{y = \dfrac{k}{x^2}}$ . The constant for the variation is 2250.

<h3>What is the intensity of light?</h3>

The intensity of light from a lantern varies inversely to the square of the distance from the lantern.

From the given information:

Let y be the intensity of light, and
x be the distance from the lantern

Then:

$\mathbf{y \alpha \dfrac{1}{x^2} }$

$\mathbf{y = \dfrac{k}{x^2} }$ here, k = constant.

If y = 90 W/m² when the distance x = 5m

Then:

$\mathbf{90 = \dfrac{k}{(5)^2}}$

k = 90 × 25

k = 2250

The equation to model the situation by using the constant variation is:

$\mathbf{y = \dfrac{2250}{x^2}}$

If the light intensity y = 40, then x is determined as:

$\mathbf{40 = \dfrac{2250}{x^2}}$

$\mathbf{x = \sqrt{\dfrac{2250}{40}}}$

x = 7.5 m

The light is needed in (225 × 1000)m = 225000 km of illumination.

The lantern required for the new light estimation is:

y = 2250/225000

y = 0.01 intensity

Therefore, we can conclude that to get an intensity of 1 W/m², we need to put 100 lanterns.

Learn more about intensity of light here:

brainly.com/question/19791748

#SPJ1

4 0

2 years ago

What can you multiply by 3 and add 2 to get -19?

katrin2010 [14]

Answer:

$let \: the \: unknown \: = x \\ then \: x \times 3 + 2 = - 19 \\ 3x + 2 = - 19 \\ 3x = - 19 - 2 \\ 3x = - 21 \\ x = - 21 \div 3 = - 7 \\ x = - 7 \\ thank \: you$

4 0

3 years ago