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3 years ago

5(x-4)=7x ik its easy just very confused

Mathematics

2 answers:

Dahasolnce [82]3 years ago

5 0

Answer:

- 10

Step-by-step explanation:

Step 1:

5 ( x - 4 ) = 7x Equation

Step 2:

5x - 20 = 7x Multiply

Step 3:

- 20 = 2x Subtract

Step 4:

x = - 20 ÷ 2 Divide

Answer:

x = - 10

Hope This Helps :)

Papessa [141]3 years ago

3 0

X =10 just cause it does

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Tamiku [17]

Answer:

<h3> $\boxed{99°}$ </h3><h3 />

Step-by-step explanation:

m<MON = 8x - 13°

m<LOM = 7x - 17°

To find : m <MON

First, we have to find the value of x :

Create an equation

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Collect like terms

$\mathrm{15x - 13 - 17 = 180}$

Calculate

$\mathrm{15x - 30 = 180}$

Move constant to R.H.S and change its sign

$\mathrm{15x = 180 + 30}$

Calculate the sum

$\mathrm{15x = 210}$

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$\mathrm{ \frac{15x}{15} = \frac{210}{15} }$

Calculate

$\mathrm{x = 14}$

Now, let's find the value of m<MON

$\mathrm{8x - 13}$

Plug the value of x

$\mathrm{ = 8 \times 14 - 13}$

Calculate the product

$\mathrm{ = 112 - 13}$

Calculate the difference

$\mathrm{ = 99}$ °

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6 0

3 years ago

A roller coaster’s height is given by the equation h = –.025t2 + 4t + 50, where t represents the time in seconds. How long will

Semenov [28]

It will take the roller coaster 171.652 seconds to pass over the hill and reach ground level

<h3>How to determine the time to hit the ground?</h3>

The function is given as:

h = –.025t^2 + 4t + 50

Set h = 0.

So, we have:

–.025t^2 + 4t + 50 = 0

Using a graphing calculator, we have:

t = -11.652 and t = 171.652

Time cannot be negative.

So, we have:

t = 171.652

Hence, it will take the roller coaster 171.652 seconds to pass over the hill and reach ground level

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brainly.com/question/27958964

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2 years ago

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Taya2010 [7]

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Step-by-step explanation:

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