What is 5x-2.5+6x-3 equivalent to

11x-5.5

Step-by-step explanation:

If you combine like terms it will be equivalent still.

5x and 6x can be added together which is 11x

you can also combine -2.5 and -3 which is -5.5

So the product will be 11x-5.5

Hope this helped :)

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.