Answer:
a, b, f, and h
Step-by-step explanation:
Answer:
(-3,-8)
Step-by-step explanation:
okay so what we can do here is elimination
we can do this first by multiplying the entire second equation by 2
so then it would become
2(5x-2y=1)
10x-4y=2
now we can add the two equations together which will eliminate y
so
-8x+4y=-8 plus
10x-4y=2 equals
2x=-6
we did that by combining like terms
next we can simplify that
x=-3
now we can plug that into the equation
-8(-3)+4y=-8
simplify
24+4y=-8
4y=-32
y=-8
our answer would be
(-3,-8)
Answer: It is a 25% increase.
Step-by-step explanation: First lets subtract her new wage from her old wage. 10 - 8 = 2
Next, lets write an percent equation, for p = percent.
2 = p x 8
Basically, we are saying that her new wage will be what percent of her old wage.
Next,
2/8 = p
0.25 = p
Now, multiply 0.25 by 100 to get a percent
0.25 x 100 = 25
So her new wage is a 25% increase from her old wage.
Step-by-step explanation:
Answer:
ok
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
There are 30 red marbles and the ratio of black to yellow is 4/5, so 4/5=orange/green=orange/30.
30 is 6 times 5, so black=6 times 4=24. There are 24 black marbles.
Total of black and yellow=24+30=54.
40% of the marbles are green so 60% are black/yellow. Also 60% is 54 marbles.
60% is 60/100=3/5 so 3/5 of the total is 54 marbles, therefore 1/5 is 54/3=18 and 2/5 is the number of red marbles=2 times 18=36 red marbles.
to be honest i can't think of anything original for the visual thing, but i think the pi chart from the person above me would work well
