Multiply (3x-+4) and use distributive property and simply

-3x² +17x -20

Step-by-step explanation:

Hi, to solve this we have to apply distributive property.

To do this, we have to multiply each addend separately and then add the products.

(3x-5)(-x+4)  

(3x.-x) (3x.4) (-5.-x) (-5.4)

-3x² +12 x+5x-20

Adding alike terms to simplify (in this case 12x + 5x)

-3x² +17x -20

Feel free to ask for more if needed or if you did not understand something.

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !