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Bas_tet [7]
3 years ago
13

What is an equivalent ratio to 7:5A 14:12B 21:10C 21:15PLZ help me

Mathematics
2 answers:
svp [43]3 years ago
4 0
Look at all the options.

Let's look at the 5 in the ratio. A number of an answer choice has to be divisible by 5. We can already say A isn't the right answer, because we can't multiply 5 to 12. 

All the 7 factors are equal to 21.

7*3= 21

So, shouldn't we multiply by 3 for the 5 as well?

3*5= 15

The correct answer is 21:15 or "C".

I hope this helps! 
Paha777 [63]3 years ago
3 0
The correct answer is C, since 7:5*3 is 21:15.
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Assuming that no adult tickets were sold, the answer would be 245 tickets.

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3 years ago
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Matt has a rectangular garden that is 10 ft wide and 24 Ft long . He wants to build a fence from one corner to the opposite corn
iogann1982 [59]
He needs 26 feet of fence.

The diagonal of the rectangle forms the hypotenuse of a right triangle.  The two legs would be the width of the rectangle, 10, and the length, 24:

10²+24² = c²
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3 years ago
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one number is 4 times a first number. A third number is 100 more than the first number. if the sum of the three numbers is 592 f
kati45 [8]

<u>Answer</u>

1st number = x

2nd number = 4x

3rd number = x + 100

sum of three numbers = 592

x + 4x + x + 100 = 592

6x + 100 = 592

6x = 592 - 100

6x = 492

x = 492/6

x = 82

1st number, x = 82

1st number, x = 822nd number, 4x = 328

1st number, x = 822nd number, 4x = 3283rd number, x+100 = 182

check :

82 + 328 + 182 = 592

pls mark as brainliest. . . ☺

3 0
3 years ago
PLS HELP ME PLS ITS DUE​
blondinia [14]

C) 3y(2y+9)

Step-by-step explanation:

you have to divide 6 and 2 then you have to use a factor of 27 to get 9.

5 0
2 years ago
A boat took 5 h to travel 60 km up a river, against the current. The return trip took 3 h. Find the speed of the boat in still w
Dafna11 [192]

Answer:

Correct answer: V₁ boat = 16 km/h and V₂ current = 4 km/h

Step-by-step explanation:

If we take speed (velocity) of the boat as V₁ and speed of the current V₂

Let us form equations:

Traveling down the current  V₁ + V₂ = 60/3 = 20 km/h

Traveling against the current  V₁ - V₂ = 60/5 = 12 km/h

V₁ - V₂ = 12

V₁ + V₂ = 20

If we add up the left and right sides of the equations we get:

2 V₁ = 32  =>    V₁ = 32/2 = 16 km/h

from the second equation we get:

V₂ = 20 - V₁ = 20 - 16 = 4 km/h

V₂ = 4 km/h

God is with you!!!

8 0
3 years ago
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