42.081 * 99.91 ≈ 42 * 100 ≈ 4200
<span>C) 4200</span>
Answer:
i'm pretty sure its B but it would be helpful if i could see a graph
Step-by-step explanation:
<span> 3x < -6
x < -2
answer
x < -2</span>
Explanation:
51 1/5 pounds= 51.2 pounds
51.2-18.3=32.9 pounds
Answer: 32.9 pounds heavier
Let's write it down in mathematical terms:
x-y=5
so
x=5-y
this means:difference between two numbers is 5
2y=x+18
this means: twice the smaller number is 18 more than the larger number
and we can substitute the x for what we said before:
2y=(5-y)+18
we add 1 y from each side:
3y=5+18
3y=23
so the smaller number is 23 and the bigger number is 23+5=28.