# Math

An aquarium contained an equal number of horseshoe crabs and sea stars. After 15 horseshoe crabs were removed and 27 sea stars were removed the ratio of horseshoe crabs to sea stars was 5:3. How many horseshoe crabs and sea stars were there at first? Solve this problem and explain your reasoning. Please don't use cross multiple!

1. 👍 0
2. 👎 2
3. 👁 632
1. horseshoe crabs = X.
sea stars = x.

(x-15)/(x-27) = 5/3.
5(x-27) = 3(x-15),
5x - 135 = 3x - 45,
X = ?

1. 👍 0
2. 👎 2

## Similar Questions

1. ### Science!!!

1. Why can certain stars sometimes be identified as eclipsing binary stars? A. They are brighter than any single star B. They are all white dwarfs C. They become dimmer at regular intervals D. They are cool red stars

2. ### English

Read this paragraph. When my grandparents proposed we visit an aquarium, I never imagined the impact the trip might have on my life. We traveled by car to Harbortown, and we passed the time discussing the attractions we hoped to

3. ### English

1. Which of the following sentences uses capitalization CORRECTLY? (1 point) A.) You can find the complete list of Senators online. B.) Have you ever read The History of Tom Jones, a Foundling? C.)The Maryland Blue Crabs have

4. ### Physics Hear

1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his 10.0-kg vat of water from 20.0℃ to 100.0℃? Formula>> Q=mTcp 2)Under the spreading chestnut tree of the

1. ### physics

A hot iron horseshoe (mass = 0.43 kg), just forged (Fig. 14-16), is dropped into 1.60 L of water in a 0.26 kg iron pot initially at 20°C. If the final equilibrium temperature is 26°C, estimate the initial temperature of the hot

2. ### History

What destroyed the confederation Tecumseh had built? A. Tecumseh’s death B. Canadian losses in York C. U.S. control of Lake Erie D. U.S. victory at the Battle of Horseshoe Bend

3. ### Morphemes

Please check these morphemes' divisions. 1)mice -/mice/ (1) 2)sitting - /sitting/ (1) 3) punches - punch/es (2) 4)runners - /runner/s/ (2) 5)firefighters - fire/fight/ers (3) 6) Automobile - auto/mobile (2) 7)Chart - /chart/ (1)

4. ### Math

The public library has an aquarium in the shape of arectangle prism . The base is 6 feet by 2.5 feet and the height is 4 feet . How many square feet of glass were used to build the aquarium (the top of the aquarium is open).

1. ### Language arts

Which of your sense can best help you picture this excerpt from a poem? while you float free into a cloud of sudden azaleas/luminous pink petal that have/never felt loneliness... a. sight - I picked this one. b. taste c. hearing

2. ### math

Martene got a small aquarium for her birthday. The aquarium is a right rectangular prism 18.5 cm long and 15cm wide.Martene put 3885 cm of water in the aquarium. How deep is the water in the aquarium?

3. ### URGENT!! Mathematics

I need to complete some important questions for math, but I am unsure of how to complete them. Here are the questions I need help with: 2. The parabola has the roots of ± √13 and passes through the point (-5, -4). Determine the

4. ### Physics Heat

1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his 10.0-kg vat of water from 20.0℃ to 100.0℃? Formula>> Q=mTcp 2)Under the spreading chestnut tree of the