If 9 is greater than x, it can be displayed as x < 9. If 5 is less than x, it can be displayed as 5 < x. To show it fully, the answer is 5 < x < <span> 9. </span>
Answer:
See below.
Step-by-step explanation:
The error is she reversed the direction of the inequality. The only time you do that is when multiplying an inequality by a <u>negative</u> number.
She should have done:
Answer:
3
Step-by-step explanation:
$1.75 (ice cream) + $0.35 (topping) * x (some toppings) = $2.80, so I can rewrite it like that: 1.75+0.35x=2.80
1) Move the constant to the right side and change its sign: 0.35x=2.8-1.75
2) Substract the numbers: 0.35x=1.05
3) Divide the both sides of the equation by 0.35
4) x=3