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timurjin [86]
3 years ago
5

A square piece of plastic has a perimeter of 8 cm. how long is each side of the piece of plastic?​

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
8 0

Answer:

Step-by-step explanation:

Since it is a square, all four sides are equal and its perimeter is just

P=4s, so if P=8 then

4s=8, dividing each side by 4 we get

s=2

So each side of the plastic square is 2 centimeters.

Westkost [7]3 years ago
8 0

Answer:

why are u trying to delete ur stuff anyways

Step-by-step explanation:

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Swimming Pool On a certain hot summer's day, 630 people used the public swimming pool. The
crimeas [40]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the linear equation in two variables.

So we have to form two equations to solve this.

Let the number of children be 'x' and number of adults be 'y'.

hence, we get as,

x+y = 630 ..... (1)

and also, to their total cost spending, we get as,

1.5x + 2.25y = 1170 ...... (2)

solving (1) and (2) we get as,

Number of children were = 330

and Number of Adults were = 300

(Solved in the attachment)

4 0
3 years ago
IS ANYONE GOOD AT CALCULUS? PLEASE HELP!!! The rate at which a certain radioactive isotope decays is given by = negative 0.0032
victus00 [196]

Answer:

90 days.

Step-by-step explanation:

dy/dt = - 0.0032y

dy = -0.0032y dt

dy/y = -0.0032 dt

Integrating:

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y = e^(-0032t) + e^c

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At time 0 we can let y = 1 so in that case A = 1

When there is 0.75 of y left:

0.75 = e^-0032t

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t = ln 0.75 / -0032

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6 0
3 years ago
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lara31 [8.8K]

Answer:

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Step-by-step explanation:

7 0
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Read 2 more answers
A fisherman can row upstream at 2 mph and downstream at 8 mph. He started rowing upstream until he got tired and then rowed down
slega [8]
<h3>Answer:    16 miles</h3>

==========================================================

Explanation:

x = time in hours spent going upstream

5-x = remaining time in hours spent going downstream

Those two quantities add to 5 hours total.

Let's find the expression for how far the fisherman went upstream

distance = rate*time

d = r*t

d = 2x

Do the same for the downstream portion

d = r*t

d = 8(5-x)

d = 40-8x

The values of d refer to the same distance because he came back to the starting point.

Set those right hand sides equal to one another and solve for x.

2x = 40-8x

2x+8x = 40

10x = 40

x = 40/10

x = 4

5-x = 5-4 = 1

He spent 4 hours going upstream, and the remaining 1 hour coming back downstream.

--------------

If he spent 4 hours going upstream at 2 mph, then he traveled d = r*t = 2*4 = 8 miles.

The remaining 1 hour going downstream at 8 mph means he traveled d = r*t = 8*1 = 8 miles, which matches with the previous result. This confirms we have the correct one-way distance of 8 miles.

Therefore, the total round trip distance is 2*8 = 16 miles

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2 years ago
What is the equation of a horizontal line passing through the point (−7, 5)?
blsea [12.9K]
Hello : 
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