<u><em>Answer</em></u>

<u><em>Explanation</em></u>
Based on the given conditions, formulate:: 
Substitute
into
:: 
Rearrange variables to the left side of the equation: 
Calculate the sum or difference: 
Divide both sides of the equation by the coefficient of variable: 
Cross out the common factor: 
Answer:
M= 125
Step-by-step explanation:
Hope it helped! Plese mark brainliest!! Have a nice night!
Answer:
14
Step-by-step explanation:
2x + 11 + 4x - 5 = 90° because this is a right triangle.
6x + 6 = 90°
6x = 84
x = 14
7.5? well 7 1/2? there is the answer
Answer:
350 pairs
Step-by-step explanation:
If the ratio of Athletics, Boots, and Dress shoes is 5 to 2 to 3, it means that for every 2 pairs of Boots they have 5 pairs of Athletics shoes and 3 pairs of dress shoes.
So, if they have 70 pairs of boots, we can calculate the number of Athletics as:

And if they have 70 pairs of boots, the number of dress shoes are:

Finally, they have 70 pairs of boots, 175 pairs of athletics, and 105 pairs of dress shoes. It means that they have 350 pairs in total.
70 + 175 + 105 = 350