Answer:
The unknown measure is 12.
Step-by-step explanation:
This is because the triangle is an equilateral triangle, meaning that all sides are the same.
We know any prism has the below formula if volume
Here
- Area of base=15cm^2
- Height=6cm
<span>As you look at the graph from left to right (increasing x), if the line is going up(increasing y), slope is positive.
.
If it's going down (decreasing y), slope is negative.
</span>
Answer:
5 kg flour remains
Step-by-step explanation:
80% of the original 25 kg comes to 0.80(25 kg), or 20 kg. We convert 80% to its decimal equivalent, 0.80, to get this result
The amount of flour remaing is then (1.00 - 0.80)(25 kg), or 0.20(25 kg) = 5 kg.
5 kg flour remains.
Let c and d be the number of cds and dvds respectively.
c+d=12
c=12-d
The we are told that:
2c+3d=31, using c found above in this equation gives you:
2(12-d)+3d=31
24-2d+3d=31
24+d=31
d=7
So Phillip bought 7 dvds.
check...
3*7+2(12-7)=31
21+2(5)=31
21+10=31
31=31
