Answer:
Its a little hard...... .....
Y= 150
Start by using substitution.
Change x+y=375 to x=375-y
Substitute this into 1.25x+0.75y=393.75
1.25(375-y)+0.75y=393.75
Distribute the 1.25
468.75-1.25y+0.75=393.75
Add like terms (y)
468.75-0.5y=393.75
Subtract 468.75 to the right
-0.5y=-75
Divide by -0.5
y=150
Answer:
<em><u>C. Multiply by the reciprocal</u></em>
<em><u>A. Use the phrase keep, change, flip, then solve</u></em><em><u>. </u></em>
Answer:
x = - 1, x = 11
Step-by-step explanation:
to find the x- intercepts set f(x) = 0, that is
x² - 10x - 11 = 0
to factor, consider the factors of the constant term which sum to give the coefficient of the x- term
These are - 11 and + 1
(x - 11)(x + 1) = 0 ← in factored form
equate each factor to zero and solve for x
x - 11 = 0 ⇒ x = 11
x + 1 = 0 ⇒ x = - 1
9514 1404 393
Answer:
-13/11
Step-by-step explanation:
Straightforward evaluation of the expression at x=1 gives (1 -1)/(1 -1) = 0/0, an indeterminate form. So, L'Hopital's rule applies. The ratio of derivatives is ...