Answer:
Joy must use 80 milliliters of solution at 20% and 20 milliliters of solution at 60%
Step-by-step explanation:
Let
x -----> milliliters of solution at 20%
y -----> milliliters of solution at 60%
we know that
----> equation A
so
----> equation B
Solve the system of equations by graphing
Remember that the solution of the system is the intersection point both graphs
The solution is the point (80,20)
see the attached figure
therefore
Joy must use 80 milliliters of solution at 20% and 20 milliliters of solution at 60%
The correct answer is the last one - It will not be spread out across the entire coordinate plane because in Step 4 and Step 5, Sharon selected incorrect scales on the axes
Answer:
9/11
Step-by-step explanation:
To divide, you have to flip the dividend.
So, 4/9 would become 9/4
Then you multiply 4/11 by 9/4
This would give you 36/44
Simplify.
18/22
Simplify some more.
9/11
Hope I helped :)
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Answer:
381 cubic inches
Step-by-step explanation:
To find the volume of the cube, use the volume formula for a rectangular prism V = l*w*h and for a triangular prism V = 1/2 l*w*h.
<u>Rectangular prism</u>
Substitute l = 16, w = 7, and h = 3.
V = 16*7*3 = 336 cubic inches
<u>Triangular prism</u>
Substitute l = 5, w = 3 and h = 6.
V = 1/2*5*3*6 = 45 cubic inches
Together the volume will be 336 + 45 = 381.
Answer:
Step-by-step explanation:
<u>amount of interest Ellen would earn while on a 5 % interest</u>
5/100(2500)+2500=2625
<u>amount of interest Ellen would earn while on a 65 % interest</u>
65/100(2500) +2500=4125
<u>the difference</u>
4125-2625=$ 1500
