Solve for new value of x Will mark BRIANLIEST

46

Step-by-step explanation:

all triangles add up to 180 degrees

add up the degrees that are given

83+51=134

SUBTRACT 134 from 180 which would be 46

add up all the degrees and they should add up to 180 to double check your work!

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

d 600 because 15*10*2=300

300+300=600

step-by-step explanation: