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AfilCa [17]
2 years ago
12

2. A record store is going out of business and sold any

Mathematics
1 answer:
liubo4ka [24]2 years ago
7 0

Answer:

A)  c +  CD = 20

B) 6c + 12CD = 192

Multiplying equation A by -6 we get:

A) -6c -6CD = -120

B) 6c + 12 CD = 192

Adding the equations we get

0 + 6 CD = 72

There are 12 CD's and

c + 12 = 20

There are 8 cassettes

Step-by-step explanation:

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The graphs of the equations $y=3x-20$ and $y=-2x+10$ intersect at the point $(6,-2)$. Without solving, find the solution of the
Maru [420]

Answer:

The solution is

\boxed{x=6,y=-2}

Step-by-step explanation:


The given equations are


y=3x-20


and

y=-2x+10


The graph of the two equations intersects at (6,-2) as show in the graph in the attachment.


The point of intersection of the two graphs is the solution to system of equations.

Hence the solution is

x=6,y=-2

4 0
3 years ago
A plastic ball is filled with gel to make a stress ball. If the ball has a radius of 4 cm, how much
Dafna1 [17]

Answer:

267.947 cm^{3} of gel is required to fill the plastic ball.

Step-by-step explanation:

<em>The radius of the ball is given as 4 cm.</em>

<em>The gel is filled in the plastic ball, that means the gel occupies the volume of the radius.</em>

The volume of the sphere is given by the formula,

V = \frac{4}{3}(\pi)R^{3} , the R is the radius of sphere.

V = \frac{4}{3}(\pi)(4)^{3} = 267.947 cm^{3}

Thus, the volume of gel required to fill the plastic ball to make it stress ball is

267.947 cm^{3} of gel.

3 0
3 years ago
In a bag there are red and blues marbles in the ratio 2:7. What is the ratio of blue marbles to the total in the bag
Paladinen [302]
7:9
sksnbsnsjsksnndd
8 0
3 years ago
Help ASAP. I don’t remember any of this when I was in school
lozanna [386]

Answer: 460 Workers

Step-by-step explanation: This is pretty simple, we know there's 198 men...and the ratio is 3:4.

198 ÷ 3 = 66

66 * 4 = 264

There are 264 female workers, and 196 male workers...

264 + 198 = 460

In total, there are 460 workers.

I hope this helps!

8 0
3 years ago
X = -y + 3<br> 3x - 2y = -1
slamgirl [31]

Answer:

Answer : ( 1 , 2 )

Step-by-step explanation:

<h2>HOPE THIS HELP :)))</h2>

5 0
3 years ago
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