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sleet_krkn [62]
2 years ago
13

Find the value of in the triangle shown below9, 7, and x around the triangle ​

Mathematics
1 answer:
borishaifa [10]2 years ago
3 0

Answer:

Step-by-step explanation: 56

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An N-scale model railroad caboose is 3 inches long. N scale is 169 feet to 1 foot.
hammer [34]

9514 1404 393

Answer:

  • c/3 = 169/12
  • 42 1/4 feet

Step-by-step explanation:

Since we want to know the actual number of feet, we can write the proportion with that in the numerator.

  \dfrac{\text{actual feet}}{\text{scale inches}}=\boxed{\dfrac{c}{3}=\dfrac{169}{12}}\\\\c=\dfrac{3\cdot169}{12}=42\frac{1}{4}\qquad\text{multiply by 3}

The real caboose is 42 1/4 feet long.

4 0
2 years ago
if you deposit $15 a week into the savings account what is the minimum number of weeks it will take for you to be able to open a
castortr0y [4]

Answer:

15 weeks

15 times 15 is 225

$200 (checking) $25 (savings)

:)

8 0
3 years ago
A tank whose volume is unknown is divided into two parts by a partition. one side of the tank contains 0.03 m3 of refrigerant-13
Lubov Fominskaja [6]

 suppose you wanted the tank to hold 100 gallons of water and it was 50 gallons per cubic feet. How many cubic feet would you need? Obviously, 2 cubic feet. How did you get that?? Well, you divided 100 by 50 to get 2.

O.K., now, let's try YOUR problem. 225000 gallons and 7.5 gallons per cubic feet. How many cubic feet do you need? Must be 225,000/7.5 = 30,000 cubic feet

O.K., now we're half way there. we (should) know that the volume of a prism is

l x w x h. We now know the volume must also be 30,000

so l x w x h = 30000
100 x 20 x h = 30000

you should be able to take it from there.

Problem #2

We approach it the exact same way.

It's too hard as stated. Let's make up an easier problem.

suppose 1 gallon took up 5 cubic feet. If you had 10 cubic feet, how many gallons would you have?
well, clearly, you would have 2 gallons. How did you get it?

Now, how many cubic feet in the cylinder? Well you (should) know that the volume of a cylinder is:

Pi r^2h = 3.14 x 25^2 h = 1962.5 h

Now we have a bit of a problem. You didn't tell me how high the tank is. Let us say it is 10 feet.

So, the tank had 19,625 cubic feet.

Go back to the start of this problem and you will know what to do next.
3 0
3 years ago
a bag has 5 yellow marbles, 3 red marbles, and 2 blue marbles. Quincy randomly picks a marble from the bag and returns it before
Sidana [21]

Answer:

40

Step-by-step explanation:

2/10 are blue

so we need to find out 2/10's of 200

so in your calculator multiply 200 by 2/10

you get 40

8 0
2 years ago
Joseph plots the speed of his car and time on a scatter plot. The equation for the line of best fit on his scatter plot is y = -
Brrunno [24]

Answer:

A

Step-by-step explanation:

His speed change is the slope or -15, decreases by 15 miles/hour

when he starts, his speed is 0*-15+60 = 60 miles/hour

6 0
3 years ago
Read 2 more answers
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