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3 years ago

The ratio of tagged fish to untagged fish was 2 to 9. Ninety fish were tagged. How many fish were untagged

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

5 0

Answer:

405

Step-by-step explanation:

Since

2 : 9 = 90 : X

Then we know

9/2 = X/90

Multiplying both sides by 90 cancels on the right

90 × (9/2) = (X/90) × 90

90 × (9/2) = X

Then solving for X

X = 90 × (9/2)

X = 405

Therefore

2 : 9 = 90 : 405

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Kathy stood on the middle rung of a ladder. she climbed up 44 rungs, moved down 33 rungs, and then climbed up 99 rungs. then s

scoundrel [369]

Solution:

we are given that

Kathy stood on the middle rung of a ladder.

Since she climbed up 44 rungs, moved down 33 rungs...total up move of 44-33=11 rungs

Then climbed up 99 rungs. so a total of 11+99=110 rungs up.

Then she climbed up the remaining 33 rungs to the top of the ladder so total up move by 110+33=143 rungs

Since Kathy stood on the middle rung of a ladder so number of rungs=143x2=186

Now add the middle rungs.

Total number of rungs in the whole ladder=186+1=187

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3 years ago

What's 15⁄45 written as a fraction in simplest form?

grigory [225]

1/3 is your answer

Hope this helps!
Let me know if i'm wrong

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4 years ago

A small rug is 36 inches long. It's width is 2/3 of its length. What is the width of the rug in feet

Stella [2.4K]

There is 24 inches which is 2 feet long

6 0

4 years ago

Read 2 more answers

-66.14 + 73.53 - 87.15

den301095 [7]

Answer:

-79.76

Step-by-step explanation:

Just do -66.14-87.15 then add 73.53

8 0

3 years ago

By increasing the speed of her car by 5 km/h, Alice was able to drive 12 km in 0.2 hours. What was her original speed?

Mama L [17]

$v=\frac{s}{t}\\\\v-speed\\s-distance\\t-time\\\\s=12km;\ t=0.2h\\\\v=\frac{12}{0.2}\ km/h=\frac{120}{2}\ km/h=60\ km/h\\\\60\ km/h-5\ km/h=55\ km/h\\\\Answer:Her\ original\ speed\ was\ 55\ km/h.$

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3 years ago

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