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galina1969 [7]
3 years ago
6

A disc has a diameter of centimeters while a mini disc has a diameter of centimeters. Write the ratio of the mini disc diameter

to the disc diameter.
Mathematics
1 answer:
Dafna1 [17]3 years ago
3 0

Answer:

2 : 3

Step-by-step explanation:

A disc has a diameter of 21 cm while a mini disc has a diameter of 14cm. Write the ratio of the mini disc diameter to the disc diameter.

Answer: Let the diameter of the mini disc be d_1 while the diameter of the disc be d_2. To get the ratio of the mini disc diameter to the disc diameter, we just simply have to divide the diameter of the mini disc by the diameter of the disc and then represent the fraction in ratio form. The ratio of the disc diameters is given by:

Ratio of the mini disc diameter to the disc diameter = Diameter of mini disc / diameter of disc

Ratio of the mini disc diameter to the disc diameter = \frac{14}{21}=\frac{2}{3}

Ratio of the mini disc diameter to the disc diameter = 2 : 3

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A rectangle has an area of 75.2m
Degger [83]

Answer:

94.8

Step-by-step explanation:

Aera is : length *width

75.2 = 0.8 * x then x =94

Perimeter is : length + width =94 +0.8

3 0
2 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!
kozerog [31]
She did not multiply both sides of the equation by 2.

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3 0
3 years ago
Martha went to the movies she purchased some $14 movie tickets and some $12 movie tickets she purchased a total of 9 tickets for
Charra [1.4K]
So
represent x for number of $14 movie tickets she got
y is number of $12 movie tickets

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x+y=9

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14x+12y=114

we have
x+y=9
14x+12y=114
solve
multiply first equation by -12 and addd to oth equesiton

-12x-12y=-108
14x+12y=114 +
2x+0y=6

2x=6
divide 2
x=3
sub back

x+y=9
3+y=9
minus 3
y=6

3 of the $14 tickets
6 of the $12 tickets
6 0
3 years ago
Read 2 more answers
Find the missing value so that the two points have a constant of proportionality of ½. (14,7) and (6,y) *
melomori [17]

Answer:

y=3

Step-by-step explanation:

\frac{7-y}{14-6} = \frac{1}{2}

\frac{7-y}{8} = \frac{1}{2}

7-y = 4

y=3

6 0
3 years ago
2x-4y=20 what is the value of y
ra1l [238]

Answer: 20-2x/-4

Step-by-step explanation:

To actually solve for y as a number, you need two equations.

For this case move the 2x to the other side, making the equation -4y=20-2x.

Then divide by -4 on each side making the equation y=20-2x/-4.

6 0
3 years ago
Read 2 more answers
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