Answer:
In afternoon it was -2 degree cold. At night it went 5 time colder. How cold was it at night?
Step-by-step explanation:
Answer:
x = 30
Step-by-step explanation:
![\frac{x}{6} +1=6\\\\\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}\\\frac{x}{6}+1-1=6-1\\\\Simplify\\\frac{x}{6}=5\\\\\mathrm{Multiply\:both\:sides\:by\:}6\\\frac{6x}{6}=5\times\:6\\\\Simplify\\x=30](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B6%7D%20%2B1%3D6%5C%5C%5C%5C%5Cmathrm%7BSubtract%5C%3A%7D1%5Cmathrm%7B%5C%3Afrom%5C%3Aboth%5C%3Asides%7D%5C%5C%5Cfrac%7Bx%7D%7B6%7D%2B1-1%3D6-1%5C%5C%5C%5CSimplify%5C%5C%5Cfrac%7Bx%7D%7B6%7D%3D5%5C%5C%5C%5C%5Cmathrm%7BMultiply%5C%3Aboth%5C%3Asides%5C%3Aby%5C%3A%7D6%5C%5C%5Cfrac%7B6x%7D%7B6%7D%3D5%5Ctimes%5C%3A6%5C%5C%5C%5CSimplify%5C%5Cx%3D30)
Since a small drink is the cheapest, make the cost of a small drink=x. Since a large drink costs 50 cents more than a small drink, let a large drink=x+50. The total of the drinks is the sum of the individuals. Since the cost of a small drink is x, 3 drinks cost 3x. Since the cost of a large drink is x+50, the cost of 2 drinks is 2(x+50). The cost of all of the drinks together is 3x+2(x+50). Distribute the 2. 3x+2x+100. Combine like terms. 5x+100. This will give you your answer in cents. If you need an answer in dollars, you multiply that expression by 0.01.