6/15
equals 0.40
to calculate, 15 divided by 6 equals 0.40.
So, what’s the question, I probably can answer it if you include the question
Let's say a = number of ordered soups, b = number of ordered sandwiches.
Then 4.5a + 7.75b = 113.50, and a and b are integers between 0 and 18 inclusive.
How do we tackle this? If all ordered soup, the cost would be $81, so we'll have at least 4 sandwiches. If all ordered sandwich, the cost would be $139.5, so at most 15 sandwiches were ordered. You also know an even number of sandwiches was ordered, to let the price end at 50 cent.
If you brute-force from 4,6,8,10,12 to 14 sandwiches, you find the answer at 10 sandwiches and 8 soups.
10*7.75 + 8*4.50 = 113.50
To answer this you will combine both fractions together to get a total. The denominators are not the same so you will need to create equivalent fractions for both with a common denominator. The denominator is like the units, and to be able to add them they must be the same.
2/5 + 3/7
2/5 = 14/35 and 3/7 = 15/35
14/35 + 15/35 = 29/35
29/35 of the garden are these 2 flowers.
I know my picture stinks, but it is possible. If you make it into a triangle shape, but move the table a bit closer to the throwing wheel (as shown) it works out great. If you ever get a problem like his again, just think outside the box for different solutions.
