A calculator has 50 keys in five colors: gray, black, blue, yellow, and green.
a. There are 6 gray keys for every 7 blue keys. Write the possible ratios for
gray to blue keys.
b. There are 6 gray keys for every 11 black keys. Write the possible ratios
for gray to black keys.
C. There are 6 gray keys for every 11 black keys. Also, the number of
black keys is 2 less than twice the number of gray keys. Use your
answer to part (b) to determine how many gray keys and how many
black keys there are.
d. There is 1 yellow key for every 1 green key. How many keys of each
color are there?

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

if i put something wrong your not gonna like it so rather not say nothing.