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2 years ago

There are 16 seagulls at 1 pm on the beach. By 3 pm, there were 40 seagulls. What is the constant rate of change?

Mathematics

1 answer:

My name is Ann [436]2 years ago

3 0

For every one hour 12 seaguls show up
12 seaguls for every one hour
the answer i think is 12 seaguls per hour

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A circular plate has circumference 32 inches. What is the area of this plate? Use 3.14 for pi. The area of this plate is about

Novosadov [1.4K]

Answer:

A = 82.53 in²

Step-by-step explanation:

We use the circumference equation C = 2πr and the area equation A = πr².

Using the first equation and the given circumference (32 in), we find the radius of the circle, and then use this result to find the area of the circle.

C 32 in

C = 2πr becomes r = ----------- and here r = ---------- = 5.10 in

2π 6.28

Then the area of the circle is A = πr², which here is A = 3.14(5.10 in)², which, when rounded off to two decimal places, is A = 82.53 in²

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2 years ago

Find the value of each variable that ensures that each equilateral is a parallelogram

puteri [66]

Opposite sides are equal in a parallelogram.

$3a-12 = \frac{1}{2}a-7$

$\frac{5}{2}a = 5$

$a = 2$

8 0

3 years ago

One sandwich is shared equally among eight people. How much will each person get

givi [52]

Answer:

1/8 of a sandwich

3 0

2 years ago

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How do I solve x-y=11 2x+y=19

Margarita [4]

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2 years ago

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Solve the system by substitution.

kirill [66]

<h2>Answer:</h2>

x = 1

y = 1

<h3>Step-by-step explanation:</h3>

$y=-3x+4\\ y=x$

Substitute into one of the equations

$-3x+4=x$

Rearrange variables to the left sider of the equation

$-3x-x=-4$

Combine like terms

$-4x=-4$

Divide both sides of the equation by the coefficient of variable

$x=\frac{-4}{-4}$

Determine the sign for multiplication or division

$x=\frac{4}{4}$

Cross out the common factor

$x=1$

Substitute into one of the equations

$y=1$

The solution of the system is

$\left \{ {{x=1} \atop {y=1}} \right.$

<em>I hope this helps you</em>

8 0

2 years ago