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Rainbow [258]
3 years ago
10

Are the ratios 16:9 and 2:1 equivalent? yes no

Mathematics
1 answer:
yarga [219]3 years ago
3 0

Answer:

No

Step-by-step explanation:

To be equivalent it would have to be 16/8 not 16/9

You might be interested in
-3 17/20 as a decimal
alekssr [168]

Answer:

-3.85

-3 is a whole number, it comes before the decimal point.

17/20 is a fraction so it goes on the other side.

7 0
3 years ago
Prime factorazation of 13​
Neporo4naja [7]

Answer:

  13 = 13

Step-by-step explanation:

13 is a prime, so 13 is its only prime factor.

4 0
3 years ago
40 tickets were sold for a concert, some at 75 cents and the rest at $1.25. if the total raised was $42, how many had the cheape
Murljashka [212]

Answer:

34

Step-by-step explanation:

$1.25 = 125 cents.

$42 = 4200 cents

Tickets sold at 75 cents = x

Tickets sold at 125 cents = y

x + y = 40

75x + 125y = 4200

Multiply the first equation by 75

75x + 75y = 3000

75x + 125y = 4200

Subtract the the second equation from the first.

75x + 75y = 3000

- 75x + 125y = 4200

-------------------------------

0 - 150y = - 1200

Divide both sides by - 150

-150y/-150 = -1200/-150

y = 8

Substitute y = 8 into the first equation

x + y = 42

x + 8 = 42

x = 42 - 8

x = 34

34 tickets were sold for 75 cents

8 tickets were sold for $1.25

3 0
2 years ago
Tasia is grocery shoping with her father and wonders how much shopping is left to do we already have 60% of the items on the lis
KatRina [158]

Answer:

20

Step-by-step explanation:

Percentage of item shopped =60%.

No. of item shopped = 12

Then,

⇒ 60% of total item =12

Total item = 12/60*100 =20.

Therefore, number of item in the list = 20.

8 0
3 years ago
The length of a rectangular book is 2 times its width. The perimeter of the book is 42 inches. Write a system of
wel

Answer:

Mark me as brainlist

Step-by-step explanation:

P = Perimeter            

L = Length          

W = Width

Perimeter of rectangle = L + L + W + W        

or P = 2L + 2W

You know:

P = 36 inches

L = 2W          [length is(=) 2 times it's width]

W = ?

P = 2L + 2W    

Substitute/plug in what you know, plug in 2W for L since L = 2W

36 = 2(2W) + 2W         Simplify

36 = 4W + 2W

36 = 6W        Divide 6 on both sides

6 = W              Now that you know the width, you can find the length:

L = 2W

L = 2(6)

L = 12

L = 12 in

W = 6 in

PROOF

P = 2(12) + 2(6)

P = 24 + 12

P = 36

7 0
2 years ago
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