Math help, how to solve?

Question

Tanya bought 600 shares of one stock at $11.21 per share, and 250 shares of another stock at $14.82 per share. How much did she pay for the 850 shares?

Simplify the algebraic expression by combining similar terms.

0.2(x - 3) + 0.7(x + 7) - 0.6x

Simplify the algebraic expression by combining similar terms.

6.6x - 8.8y - 9.3x + 13.1y

Simplify the algebraic expression by combining similar terms.

x - 0.9x - 2.7x

if x is by itself do you count it as 1 or 1.0 what?

Answer 1

is this your aassignment? haha..

simplify the algebraic expression
first one the answer is 0.3x + 4.3
2nd one the answer is -2.7x + 4.3y
3rd one the answer is -2.6x

and oh about your other question,, yah,, if x is by itself, it has a fixed coefficient of 1.
so on your last question, you have 1.0x - 0.9x - 2.7x = -2.6x

Answer 2

Okay to get you on your way.

1) 600 (11.21) + 250 (14.82) = total cost

2) 0.2(x-3) + 0.7(x+7) - 0.6x
0.2x - 0.6 + 0.7x + .49 - 0.6x
then just add like terms (x terms, number terms)

3) add the x terms together, add the y terms together

4) add the x terms together

Answer 3

(11.21 * 600) + (14.82 * 250) = 6726 + 3705 = 10431


.2x - .6 + .7x + 4.9 - .6x combine similar (like) terms, so add all the xs together

.3x + 4.3


-2.7x + 4.3y


-1.6x

Answer 4

600 x 11.21 + 250 x 14.82 = $10,431

Answer 5

!)Total Cost=$11.21 X600+$14.82X250=$672.60+$370.50=$1043.10
0.2(x-3)+0.7(x+7)-0.6x=0.2x-0.6+0.7x +4.9-0.6x=0.2x+0.7x-0.6x-0.6+4.9=0.3x+4.3 ans.
6.6x-8.8y-9.3x+13.1y=6.6x-9.3x-8,8y+13.1y=-2.7x+4.3y ans
x-0.9x-2.7x=x-(0.9x+2.7x)=x-3.6x=- 2.6x ans
x means 1x.1x and 1.0x is same.

Answer 6

Lee Holmes deposited $15,000 in a clean fee savings account at 9% activity compounded semiannually. at first of three hundred and sixty 5 days 4, Lee deposits one greater $40,000 at 9% activity compounded semiannually. on the tip of 6 years, what's the soundness in Lee’s account?