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2 years ago

Help please and show work 30 points

Mathematics

1 answer:

grin007 [14]2 years ago

6 0

Answer:

The pair of shoes equal 18.

The boat equals 3

The chair equals 4

Step-by-step explanation:

Let x = shoes

You found the palm trees!

So the top picture would be

18 + x = 2x Subtract x from both sides

18 = x We found the value of the shoes.

Let's go so the last picture. We now know the shoes.

Let x = the boat now

18 = 6x Divide both sides by 6

x = 3 We found the value of the boat.

Finally, let's look at the second picture.

Let x = the chair now

3 + x = 7 Subtract 3 from both sides

x = 4 We found the value of the chair.

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High in the rocky mountains, a biology research team has drained a lake to get rid of all fish. After the lake was refilled, the

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Answer:

Step-by-step explanation:

High in the Rocky Mountains, a biology research team has drained a lake to get rid of all fish. After the lake was refilled, they stocked it with an endangered species of Greenback trout. Of the 2000 Greenback trout put into the lake 400 were tagged for later study. An electroshock method is used on individual fish to get a study sample. However, this method is hard on the fish. The research team wants to know the smallest number of fish that must be electroshocked to be at least 50% sure of getting a sample of two or more tagged trout.

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3 years ago

Howto solve for x in X+10=30

Alla [95]

Answer:

Step-by-step explanation:

x+10=30

x=30-10

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<h2>HOPE IT HELPED </h2>

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3 years ago

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3 years ago

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write the equation of the line that passes through the pair of points (0,2 ) and (4,-1) in slope intercept form?

valentina_108 [34]

Answer:

y= $\frac{3}{-4}$ x+2

Step-by-step explanation:

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3 years ago

Savannah has a principle of 15000 with a 4.25% and saves 1,275 in interest. How long is she saving for

Nostrana [21]

Answer:

5.73 years

Step-by-step explanation:

Considering she saved 4.25% in each year of the amount $15000.

So, we have to calculate in what time her saving reaches $1275, if she save each year.

it becomes question of simple interest in which

SI = $1275, Principal P= $5000, time T, rate R = 4.25%

we know SI = PRT/100

1275 = 5000×4.25×T/100

⇒T = 1275×100/(5000×4.25)

⇒ T= 5.73 years

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3 years ago