-2x-6+(x/4)-3+90=180. Solve for x and show work.

Answers

Answer 1

Answer: so you want to add lik terms first
group them together
I have gropued the like terms using brackets
[-2x+(x/4)]+[-6-3+90]=180
add lik terms
add the number terms
-6-3+90=81
[-2x+(x/4)]+[81]=180
subtract 81 from both sides
-2x+(x/4)=99
add 2x to both sides
x/4=99+2x
multipliy both sides by 4 to clear fraction
x=396+8x
subtract 8x from both sides
-7x=396
mulitply both sides by -1
7x=-396
divide both sides by 7
x=-396/7=-56 and 4/7

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301 round to the nearest ten

How would I find the area?

Answers

A=1/2<a+b>×h
=1/2<10+17>×10
=1/2<27>×10
=1/2×27×10
=135m²

I WILL AWARD BRAINLIEST!The Patronete Winery's tastiest wine must have a 12% alcohol content. How many gallons of wine with a 9% alcohol content must be mixed with 3,000 gallons of wine with a 15% alcohol content in order to achieve the desired 12% alcohol content?

Answers

Answer:

3000 gallons of 12 percent is required

Step-by-step explanation:

We can use the formula

percentage * amount + percentage * amount = percentage*total amount

We have 9 percent and 15 percent wine that we are mixing to get 12 percent wine.

We are adding g gallons and 3000 gallons to get a total of (g+3000) gallons

Substituting this information in

.09 *g + .15 * 3000 = .12 (g+3000)

Distribute

.09g +450 = .12g+360

Subtract .9g from each side

.09g-.09g +450 = .12g-0.09g+360

450 = .03g + 360

Subtract 360 from each side

450-360 = .03g

90 =.03g

Divide each side by .03

90/.03 = .03g/03

3000 = g

Dave collects rocks. he makes 12 groups of 10 rocks and has none left over. How many rocks does Dave have?

Answers

that means he has 120 rocks
12*10=120

12 groups, and each one containing 10.
Think about it. Which operation could we use?

Multiplication!

12*10 = 120

Dave has 120 rocks.

(One nice rock collection, Dave)
;-)

Solve z-5 /7 = -1 z=?