What is the value of u? (Geometry problem)

U = 71 degrees

Step-by-step explanation:

First you should set up an equation:

180 = b + (b - 19) + (180 - (b + 45))

Since there are 180 degrees in a triangle, set the sum of the angles equal to 180. And, since (u) and (b + 45) are supplementary angles that add up to 180, you can substitute (180 - (b + 45)) for (u).

Then, solve for (b):

180 = b + b - 19 + 180 - b - 45

180 = b + 116

64 = b

Find (b + 45):

64 + 45 = 109

Solve for (u):

180 - 109 = 71

u = 71

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

4 + 5 7/9= 9 7/9

step-by-step explanation: