What is the solution to 4(y-3)+19=8(2y+3)+7

Y = -1.2 OR - 1 1/5

Step-by-step explanation:

4(y-3)+19=8(2y+3)+7      First, simplify the problem by multiplying the numbers outside of the ()’s by the numbers inside the ()’s

4y-12+19=16y+24+7       Next, simplify again by combining like terms (EX: -12 + 19 = 7)

4y+7=16y+31.                 Then, get Y by itself.

-4y     +4y

7=20y+31

-31        -31        

-24=20y.                         (Divide to get Y by itself)

/20  /20              

-1.2 = Y or - 1 and 1/5 = Y                              

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.