14 karat gold is 58.3333...% gold
We have 75% gold and 50% gold and we need to make 200 grams of 58.3333...% gold.
A) x + y = 200
B) .75x + .50y = ( (14/24) * 200)
We multiply equation B) by -1.3333... and get
B) -x -.6666...y = -155.5555... then adding A)
A) x + y = 200 we get
.3333...y = 44.4444...
y = 133.3333... grams 12 karat gold
x = 66.6666... grams 18 karat gold
Double-Checking the answer
133.3333... * .5 = 66.6666...
66.6666 * .75 = 50.0000...
Concentration of final solution = (66.6666... + 50) / 200 = 58.3333...% which is 14 karat gold
So what you wanna do is graph a point at (0, -4) because the y intercept is -5 after you turn this into y intercept form.
Then what you have to do is graph the slope -1 so from the pint you just graph go down one and left one and keep on doing that until you reach the x axis.
The point which is on the x axis is the x intercept
Pls mark brainleist
Answer:
Suppose NOL -> QRM is a reflection across the x-axis. If O(-3, 8) what is the y coordinate of R?
Step-by-step explanation:
Answer:
20.8 ft²
Step-by-step explanation:
area = (ab sin C)/2
area = (6 ft × 8 ft × sin 60°)/2
area = 20.8 ft²
476miles per 14gallons of gas
is the same as 476 / 14 = 34
so 34miles / 1gallon of gas.
34x =578 where x is the number of gallons
578 / 34 = 17gallons
