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lorasvet [3.4K]
2 years ago
8

Find the perimeter of the shape with vertices (2, 3), (5, 3) and (5, 7).

Mathematics
1 answer:
topjm [15]2 years ago
6 0

Answer:

right triangle with sides 3,4,& 5

perimeter=12

Step-by-step explanation:

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BlackZzzverrR [31]
It’s simple, do: 8+8+10+10, just add them you will get 36. The explanation is: Perimeter is add up all the sides, since it is a rectangle it has congruent sides, so they have the same length
5 0
3 years ago
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3 coffees and 4 donuts cost $10.05. In the same cafeteria, 5 coffees and 7 donuts cost $17.15. How much do you have to pay for 4
MakcuM [25]

Answer

You need to pay $14.20 to get 4 coffees and 6 donuts.

Explanation

Let's say that the price of one coffee and x and the price of one donut is y.

In the first instance, 3x+4y=10.05.

In the second instance, 5x+7y=17.15.

You can use these equations to find the value of a coffee and the value of a donut.

We can find x and y using elimination. To do this, you should add or subtract one equation from another to "get rid" of a variable (I'll "get rid" of x). We can't just add or subtract the equations right now, since that wouldn't lead to 0x.

Multiply the first equation by 5, and the second equation by 3. After this, both equations will have 15x. Make sure to multiply each term by 5 and 3.

15x+20y=50.25. This means that 15 coffees and 20 donuts is $50.25.

15x+21y=51.45. This means that 15 coffees and 21 donuts is 51.45.

Now since there are an equal number of coffees, we can subtract these equations.

(15x+21y=51.45)-(15x+20y=50.25) equals y=1.20 (a donut costs $1.20).

Plug the price of the donut into y to find x; 3x+4(1.20)=10.05. The value of x is 1.75. The price of a coffee is 1.75.

You can multiply 1.75 by 4 to find the price of 4 coffees and 1.20 by 6 to find the price of 6 donuts.

1.75*4 is 7.00 and 1.20*6 is 7.20.

You can add those to find the total price; 7.00+7.20=14.20.

5 0
3 years ago
What is the answer to # 7 and how did you solve it? Please Help!!
omeli [17]
He has 30 gallons left
5/8 = 50/80
80-50=30
6 0
3 years ago
What is the equation of a line that contains the point (2,1) and is perpendicular to the line: y = 3x – 4?
irakobra [83]
There's  a website called desmos.com. That website can tell you the answer
7 0
3 years ago
If it took 2 hours to clean 4 houses how many houses could be cleaned in 3 hours​
leva [86]

Answer:

6

Step-by-step explanation:

it would be six in one hour he would clean 2 houses in two 4 houses then in three it would be six

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