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3 years ago

Write and solve a real world problem that can be represented by the expression (-3)(5)+10

Mathematics

2 answers:

ryzh [129]3 years ago

8 0

Answer:

-5

Step-by-step explanation:

(-3)(5) =-15 +10 =-5

Andreas93 [3]3 years ago

3 0

Answer: OK so the answer is -5

Step-by-step explanation:

The situation :

Molly traveled 5 feet to the library but then remembered she had left her bag at the edge of the corner, so she went back to grab her back and then went to the library that was only 8 more feet.

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kari74 [83]

Answer:

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2 years ago

Question 7: Timani bought a video game console and some games for $350. The video game

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3 years ago

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3 years ago

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3 years ago

What’s the height of the can?

kondaur [170]

Answer:

5 inches

Step-by-step explanation:

The formula to find the surface area of a cylinder is A = 2πrh + 2πr²

Since we need the height we will need to solve for h

First we can subtract 2πr² from both sides to get A - 2πr² = 2πrh
Then we can divide both sides by 2πr to get $h=\frac{A-2\pi r^{2} }{2\pi r}$

Now we can plug in our known values and solve for h

Here we were given the diameter, d, however this formula is in terms of the radius, r.
The diameter is equivalent to double the radius, d = 2r
Therefore the radius is equivalent to half the diameter, $r=\frac{1}{2} d$
Plugging in d to solve for r we get $r=\frac{1}{2}(2)$ which simplifies to r = 1

The two variables for this equation we have no obtained, A = 12π and r = 1, so we can plug them into our equation to solve for the height

$h=\frac{12\pi -2\pi (1)^{2} }{2\pi (1)}=h=\frac{12\pi -2\pi }{2\pi }=\frac{10\pi }{2\pi } =5$
The height is 5 inches

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3 years ago