3 years ago

Hey someone please please help me with this please i am really bad at math

Mathematics

1 answer:

Viefleur [7K]3 years ago

3 0

Answer:

x-y

Step-by-step explanation:

when you subtract (-2x-8y)-(-3x-7y)

you have to distribute that negative onto -3x-7y which turns it positive

which results in -2x-8y+3x+7y

simplified to x-y

You might be interested in

Is this a function?<br> (-2,3) (-3,3) (2,-3) (3,-3)

Fofino [41]

Answer:

yes

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

The value of an industrial machine has a decay factor of 0.75 per year. After six years, the machine is worth $7,500. What was t

Digiron [165]

If the value was initially v, then after a year it is 0.75v, after 2 years it’s 0.75²v, and so on. So after 6 years it’s 0.75⁶v.
So 0.75⁶v=7500, and v=7500/0.75⁶=$42,139.92 approximately. This is close to $42,140.

6 0

3 years ago

Round 363 to the nearest ten

Levart [38]

363 rounded to the nearest ten would be 360

3 0

3 years ago

Read 2 more answers

I don't understand what I'm supposed to do here. I have a test on this tomorrow so if you explain how to do it that would be gre

VladimirAG [237]

Here is a little tip for this: The unit above cancels the unit below. So in this problem you are asked to convert pounds to ounce. So your equation will look like this.

ounce = 2.93 pounds $( \frac{16 ounces}{1 pounds} ) = 46.88$
Your ratio should involve the conversion factor. So 16 and 1 is involved canceling A and D. Then, Notice that you started with poubls. Then the ratio must have pounds at the bottom to cancel the units leaving ounces.

7 0

3 years ago

A brother and sister attend the same school, and they walk from home to school using the same route. It takes the brother 24 min

madam [21]

Answer:

Step-by-step explanation:

24 - 3 = 21 minutes

21 > 18

5 0

3 years ago