Answer:
Step-by-step explanation:
x / x + 7 = 21/27
cross multiply
27x=21x+147
6x = 147
x=24.5
I hope this helps
Answer:
y = 3x-3
Step-by-step explanation:
first we need to find the slope, which is change in y over change in x, and therefore the slope is 3, then we plug in a point giving us 3x-3
A cycle, that is in the consideration of the earth and also help the combinations of things
The correct equation is the last one, where secx =hypotenuse ÷ adjacent, secx is the inverse of cosx, and if you recall, cosx=adjacent÷hypotenuse
Answer:
Because the problem says - they are AT LEAST...
You would need to list the answers this way
GrandD is < or = to 5 GrandS is greater or = to 7
Step-by-step explanation:
These are so fun!
Let GrandD = X
Let GrandS = X + 2 (because he is two years older than GrandD)
Their age together is 12 years - so...
GrandD + GrandS = 12 OR...
x + x + 2 = 12
Now solve for x.
2x + 2 = 12
2x = 10 (because we subtract the ones on the left from the ones on the right)
x = 5 (because we divide both sides by 2)
This means that GrandD (x) is equal or greater than 5 years old
And GrandS (x + 2) = or greater than 7 years old
