3 years ago

In a bag of marbles 12% were blue 18% were green and the rest were purple if the bag has 150 marbles how many were blue or green

Mathematics

1 answer:

baherus [9]3 years ago

8 0

Answer:

Step-by-step explanation:

12 % of the marbles are blue, and

18 % of the marbles are green, so

30 % of the marbles are either blue or green.

There are 150 marbles.

30 % × 150 = 0.30 × 150 = 45

The number of blue or green marbles is 45.

You might be interested in

A pack of paper costs $3.75, including tax. Mr. Valentino wants to purchase packs of paper for his class and has a $20 budget. W

gizmo_the_mogwai [7]

He can at least buy 5

8 0

1 year ago

Simplify....... <br><br><br><br>-9-6c-j

marin [14]

Answer: −6c−j−9

Step-by-step explanation:

3 0

2 years ago

Negative eight minus seven? (-8-7)

Nutka1998 [239]

Answer:

-15 is the answer of this

Step-by-step explanation:

Rules in Algebra

5 0

2 years ago

Read 2 more answers

Which equation represents the circle described? (in picture)

Sedaia [141]

You are right. In circle equation we have =r² so the correct answer will be C od D. But we have to calculate the center of a circle.

$x^2+y^2-8x-6y+24=0\quad|-24\\\\(x^2-8x)+(y^2-6y)=-24$

Complete the square:

$x^2-8x+a^2\implies a=\dfrac{8x}{2x}=4\implies x^2-8x+4^2\\\\\\y^2-6y+b^2\implies b=\dfrac{6y}{2y}=3\implies y^2-6y+3^2$

And we have:

$(x^2-8x)+(y^2-6y)=-24\\\\(x^2-8x+4^2)-4^2+(y^2-6y+3^2)-3^2=-24\\\\
(x-4)^2+(y-3)^2-16-9=-24\\\\(x-4)^2+(y-3)^2-25=-24\quad|+25\\\\\boxed{(x-4)^2+(y-3)^2=1}$

So the answer is C (the same left side of equation).

6 0

3 years ago

23.A chef ordered 400 pounds of potatoes in same-sized bags. Which expressions show

mrs_skeptik [129]

Answer:

10*40

80*5

20*20

Step-by-step explanation:

20*20=400

80*5=400

10*40=400

5 0

3 years ago