$\frac{2}{3}(9+x)=-5(4-x) \\ \\ 3*\frac{2}{3}(9+x)=3*[-5(4-x)] \\ \\ 2(9+x)=-15(4-x) \\ \\ 18+2x=-60+15x \\ \\ -13x=-78 \\ \\ \cfrac{-13x}{-13} = \cfrac{-78}{-13} \\ \\ x=6$

7 0

2 years ago

Help with these 3 please! BIG POINTS!

sesenic [268]

Answer:

26. 14 sq.units

27. I think it's near to be 30

28. I think it is the first one

8 0

2 years ago

Read 2 more answers

Calculate the equation of a straight line which x-intercept is = - 2 and y-intercept = 2

VikaD [51]

Answer:

y=-2x+2

Step-by-step explanation:

it has a positive slope

the line should point like this on the graph: picture above

7 0

1 year ago

Tickets for an Amtrak train cost $22 for children and $48 for adults. Josie paid $3,278 for a total of 84 tickets. How many chil

timama [110]

Answer:

29 child 55 adult

Step-by-step explanation:

x+y=84

22x+48y=3278

x=29,y=55

hope it will help, if not, sry, u can comment below to ask me!

5 0

2 years ago