Real word Problem:- Jean is working in a pizza shop. She has 60 kg of flour. She has used one-fifth of it for making pizzas. How much flour she used for making pizzas?
Solution:- Quantity of flour she has= 60 kg
The quantity she used in making pizzas=
hence, she used 12 kg of flour for making pizzas.
Here the multiplication of a fraction and a whole number and its answer is between 10 and 15, since 10<12<15.
If we add the equations it looks like -5y + 8x + 5y + 2x = -18+58 so 10x=40 so x=40/10=4 now let's replace x by 4 in the second equation 5y +2*4=58 5y=58-2*4=58-8=50 so y=50/5=10 so (x, y) = (2, 10)
The angle of x is 71° Because the triangle in isosceles the two bottom angles will have the same measure. The angles of a triangle will add to 180° so you subtract 38 and divide by 2.