Juan has taken four skill checks for the third grading period and earned a 60, a 75, an 85 and a 95. If the Unit Test counts as TWO skill check grades, what is the range of scores that Juan can earn on the Unit Exam so that he will earn a B? (Between 79 and 90) Write the inequality that can be used to solve for the range of values Juan must earn on his unit exam to meet his goal?

Please note that I am using the < and > symbol, because he wants to earn a B which is BETWEEN 79 and 90 and does NOT include them.

I also completed the first step of multiplying all parts of the inequality by the denominator (6) to "elliminate" it from my average formula.

853.3

step-by-step explanation:

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.