Answer:
C. x=4,y=9
Step-by-step explanation:
The given information show that
x+11y=103 (1)
9x+10y=126 (2)
Isolate x from (1)
x=103-11y
Substitute x=103-11y into (2)
9(103-11y)+10y=126
927-99y+10y=126
-89y=-801
y=9
So x=103-11x9=4
Answer:
Rearrange the numbers to their like terms.
which is 2x-x=56-20.
x=36.
Rotating a parallelogram onto itself will always map the figure onto itself, So your Answer is C
let's label each pump A, B, and C, just for convenience. A fills the tank by 1/50 every minute, B fills the tank by 1/60 every minute, and C drains it by 1/75 every minute. Now we can put them all into one function: t(1/50 + 1/60 - 1/75) = 1, where t = our time in minutes and 1 = the tank being full.
next, we solve for t: t = 300/7 minutes, or approximately 42.86 minutes.
Answer:
She can buy 0.8 cents worth of Gummy worms and 1.2 cents worth of sour patches
Step-by-step explanation:
Keisha is allowed to buy only 2 pounds bag of candy.
Now, she can choose either gummy worms or sour patches.
Gummy worms are 0.4 cents per pound while sour patches are 0.6 cents per pound.
Thus, maximum amount she can spend on gummy worms is; 0.4 × 2 = 0.8 cents
Maximum she can spend on sour patches is; 0.6 × 2 = 1.2 cents
She can buy 0.8 cents worth of Gummy worms and 1.2 cents worth of sour patches