Make a proportion:
Then cross multiply and divide to solve.
20x=119
x=5.95
The answer is $5.95
Answer:
C
Step-by-step explanation:
![15x^{\frac{1}{3} }y^{\frac{1}{5} }\\\\=15x^{\frac{5*1}{5*3} }y^{\frac{3*1}{3*5} }\\\\=15x^{\frac{5}{15} }y^{\frac{3}{15} }\\\\=15\sqrt[15]{x^{5}y^{3} } \\\\](https://tex.z-dn.net/?f=15x%5E%7B%5Cfrac%7B1%7D%7B3%7D%20%7Dy%5E%7B%5Cfrac%7B1%7D%7B5%7D%20%7D%5C%5C%5C%5C%3D15x%5E%7B%5Cfrac%7B5%2A1%7D%7B5%2A3%7D%20%7Dy%5E%7B%5Cfrac%7B3%2A1%7D%7B3%2A5%7D%20%7D%5C%5C%5C%5C%3D15x%5E%7B%5Cfrac%7B5%7D%7B15%7D%20%7Dy%5E%7B%5Cfrac%7B3%7D%7B15%7D%20%7D%5C%5C%5C%5C%3D15%5Csqrt%5B15%5D%7Bx%5E%7B5%7Dy%5E%7B3%7D%20%7D%20%5C%5C%5C%5C)
Hey there!
The first thing we can do is find the number of third in 4.
We can do this by multiplying 4 by 3 since there are 3 thirds in a whole.
4 x 3 = 12
So, 4 = 12/3
If she studies for 2/3 an hour each night, then we can divide 12 by 2 to figure out how many 2/3 go into 12/3.
12 ÷ 2 = 6
So, she studied for 6 days.
Hope this helps!
Answer:
They are perpendicular because they have slopes that are opposite reciprocals of −2 and one half.
Step-by-step explanation:
This is because x = -2 and half of -2 is 1
when we use CD line and x2 we find 8x+4y=16 when added to 2x -4y=8 would equal 10x+4y = 2 1/2 xy = 16
When we use for AB line we see they are perpendicular 2 1/2 x 2 = 5 -4y = 8 shows y to be -2 and the 1/2 line leaves -2 1/2 and x also is 2 1/2.
