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koban [17]
2 years ago
6

In an aquarium, the ratio of sharks to dolphins is 3 : 5 and the ratio of

Mathematics
2 answers:
fredd [130]2 years ago
4 0

Answer:

35 starfish

Step-by-step explanation:

shark/dolphin  *  dolphin /starfish = shark / starfish

Now. put in the numbers given:

3/5 * 2/7 =      6/35  = shark / starfish    put in '6' for shark (given)

   

        6/35 = 6/starfish        cross multiply

        6 * starfish = 35* 6

           starfish = 35  

             

Molodets [167]2 years ago
3 0

Step-by-step explanation:

step 1: how many dolphins

there are 6 sharks

sharks to dolphins is 3 to 5

3 S to 5 D

we can divide 6 (amount of sharks known) by 3, to get what a ratio of 1 is

6 ÷ 3 = 2

so 2 sharks is = 1 part or ratio

now we can times by 5 to get a ratio of 5

5 × 2 = 10

there are 10 Dolphins

Step 2: How many starfish

repeat the steps above but for the ratio 2: 7 where 2 is the Dolfin ratio and there are 10 dolphins

put in questions answer you got

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Determine the points of intersection of the line y=2x+5 and the circle x²+y²=36
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The two intersection points are (-2.79,  -0.58) and (0.79,  6.58).

<h3>How to find the points of intersection?</h3>

Here we want to solve the system of equations:

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To solve this, we need to replace the first equation into the second one:

x² + (2x + 5)² = 36

Now we can solve this for x:

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If you want to learn more about intersection points:

brainly.com/question/17206319

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