Plz help ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Mathematics

1 answer:

Deffense [45]3 years ago

5 0

Hi I figured it out for you all you need to do is plug in the X factor .number 3 is y=-1

You might be interested in

A boutique prices merchandise by adding 80%. It later decreases by 25% the price of items that do not sell quickly. Does the ord

k0ka [10]

The order you apply the adjustments does make a difference because the percents that are applied will be applied to different amount.

For example, 80% of 100 = $80. The price would be $180.

Decreasing this by 25% 25% of 180 = $45; 180-45 = $135.

25% of 100 is not the same as 25% of 180.

6 0

3 years ago

(I meant to make this category be science but I accidentally clicked math)

Mekhanik [1.2K]

Answer: Physical weathering is when the physical structure of something is broken down..fast moving water is an example of this because it physically changes the structure of rocks over time. Chemical weathering is the erosion of materials from chemical reactions. Chemical weathering occurs more on a molecular level. An example of chemical weathering is when the minerals in rocks are dissolved by water, which creates a new compound

Hope this makes sense and helps!

4 0

3 years ago

Read 2 more answers

Solve for x in the equation x^2-14+31=63

Bingel [31]

To solve for a variable, you need to get it (x) by itself.

x² - 14 + 31 = 63 Add 31 to -14
x² + 17 = 63 Subtract 17 from both sides of the equation
x² = 46 Square root both sides
x = $\pm \sqrt{46}$

Check your work by plugging in $\sqrt{46}$ for x and then $- \sqrt{46}$ .

$\sqrt{46}$ ² - 14 + 31 = 63 Square $\sqrt{46}$
46 - 14 + 31 = 63 Subtract 14 from 46
32 + 31 = 63 Add
63 = 63

$- \sqrt{46}$ ² - 14 + 31 = 63 Square $- \sqrt{46}$
46 - 14 + 31 = 63 Subtract 14 from 46
32 + 31 = 63 Add
63 = 63

So, x is $\sqrt{46}$ and $- \sqrt{46}$ .

3 0

3 years ago

Haley spent 1/2 hour playing on her cell phone that use 1/9 of her battery how long does she have to play on her phone to use th

grandymaker [24]

Answer:

4 1/2 hours.

Step-by-step explanation:

If 1/2 an hour only used up 1/9 of her battery, 9, 1/2 would give us 9/2, which if you simplified it gets you 8 1/2 hours. Hope this helps! Have a great day!

4 0

3 years ago

Can someone please help me

scoray [572]

I think it’s the third one a - 5 = b

3 0

3 years ago