To start off, you want to make the equations. first, we will make x = chocolate candy and y=caramel candy since thats the order they come in the problem. we know she bought 20 pieces of candy, so we now know our first equation, x+y=20. next, if each chocolate candy costs $.50, that now makes x in our second equation .5x. the y will then be .1y. they then total up to equal $6.80, so our second equation is .5x+.1y=6.8. to then find x, subtract the y from the first equation to get x=20-y. then in the second equation, replace x with y and solve. you then get y=8, so we know britney has 8 caramels. now in the first equation, replace the y to get x+8=20. and now x=12
Answer:
39/56
Step-by-step explanation:
When you add fractions, both of the base numbers (denominators) have to be the same number in order to add the top numbers (numerators).
The easiest way to do this is to multiply each denominator by the other number. For example, 8 * 7 and 7 * 8. So you will have 56 and 56. You also need to multiple the numerator by that number. So, 1 * 7 and 4 * 8. So you will have 7 and 32. This will show as 7/56 + 32/56. Finally, add the numerators - > 39/56
Answer:
10 < x
Step-by-step explanation:
-x+10 <0
Add x to each side
-x+x+10 < 0+x
10 < x
Answer:
x=8 x=16
Step-by-step explanation:
Given function:
Thinks:
- 12=4+x
- x would be equal to 16
Rewrite as:
Thereform, x=8 and x=16.
0.6x + 1.5 = 3.9
0.6x = 3.9 - 1.5
0.6x = 2.4
x = 2.4 ÷ 0.6
x = 4
