20 x 5= 100
20+20+20+20+20=100
Answer:
A=5, B=10 and C=15
Step-by-step explanation:
-We are given that:
![A+B+C=30\\\\A+B=C\\\\\therefore 2C=30\\\\C=15\\\\A+B=30-15=15\ \ \ \ ...i](https://tex.z-dn.net/?f=A%2BB%2BC%3D30%5C%5C%5C%5CA%2BB%3DC%5C%5C%5C%5C%5Ctherefore%202C%3D30%5C%5C%5C%5CC%3D15%5C%5C%5C%5CA%2BB%3D30-15%3D15%5C%20%5C%20%5C%20%5C%20...i)
-Also, given that:
![10A+12B+15C=395, \ C=15\\\\10A+12B=395-15\times 15\\\\10A+12B=170\ \ \ \ \ \ ...ii](https://tex.z-dn.net/?f=10A%2B12B%2B15C%3D395%2C%20%5C%20C%3D15%5C%5C%5C%5C10A%2B12B%3D395-15%5Ctimes%2015%5C%5C%5C%5C10A%2B12B%3D170%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20...ii)
From equation i, we have that:
![A=15-B](https://tex.z-dn.net/?f=A%3D15-B)
#we substitute A=15-B in equation ii to solve for B:
![10A+12B=170\\\\10(15-B)+12B=170\\\\150A-10B+12B=170\\\\2B=20\\\\B=10\\\\\therefore A=15-10=5](https://tex.z-dn.net/?f=10A%2B12B%3D170%5C%5C%5C%5C10%2815-B%29%2B12B%3D170%5C%5C%5C%5C150A-10B%2B12B%3D170%5C%5C%5C%5C2B%3D20%5C%5C%5C%5CB%3D10%5C%5C%5C%5C%5Ctherefore%20A%3D15-10%3D5)
Hence, the values of our unknowns are A=5, B=10 and C=15
Answer:
5.6
Step-by-step explanation:
first you see if the 100ths place is 4 or under or 5 and up. 5 and up you add 1 to the tenths place. 4 and down you keep the number the same. therefore because the number after six is 3 six stays the same and the answer is 5.6.
Answer: I think it would be the first one
Step-by-step explanation:
Answer:
Tom spent $3.75 of Skittles
Step-by-step explanation:
If each Skittle packet was $1.25, then if that is multiplied by 3, the product of the equation is, 3 dollars and 75 cents/$3.75
1.25 x 3 = 3.75