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nasty-shy [4]
2 years ago
13

A triangle has a perimeter of 145. if it's sides are in the ratio of 2:4:5. Draw the triangle​

Mathematics
1 answer:
finlep [7]2 years ago
8 0

Answer:

26.36, 52.72, 65.90

Step-by-step explanation:

write the formula

2x + 4x + 5x = 145

add all the xs together

11x = 145

find x

11x ÷ 11 = 145 ÷ 11

x = 13.1818

subsitute the value of x to 2x, 4x, and 5x to find the side lengths

2(13.1818) = 2.3636

4(13.1818) = 52.7272

5(13.1818) = 65.909

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Ajar contains nickels and dimes. There is a
devlian [24]

Answer:

There are 91 dimes in the jar.

Step-by-step explanation:

5n+10d= 1455

n+d = 200

n=200-d

5(200-d) + 10d=1455

1000-5d+10d=1455

1000+5d=1455

5d=455

d=91

91 dimes

7 0
3 years ago
Read 2 more answers
Flying against the wind, a jet travels 4400mi in 8 hours. Flying with the wind, the same jet travels 5820mi in 6 hours. What is
Viefleur [7K]
Let J = rate of jet in still airLet W = rate of wind Distance formula:  d = rt   /   r = d/t Flying against the wind the jet flies at a rate of  J - W = 1860 miles/3 hours = 620 miles per hourFlying with the wind the jet flies at a rate of J+W = 9180 miles/9 hours = 1020 miles per hour The average of these 2 rate is the speed of the jet in still air J = (620+1020)/2 = 820 miles per hour J - W = 620  

820 - W = 620
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3 0
3 years ago
Each face of a small cube has a surface area of 0.25 square meters. A larger cube has edges that are six times as long as the ed
bezimeni [28]
First, you need to find the length of the smaller cubes side. To do this you would need to find the square root of 0.25. then you find the volume with the new found side length of the smaller cube by cubing the new side length and once you have your volume of smaller cube right it down.
Now you need to find the big cube volume by cubing its side length. Once you have found both of these volumes you subtract the smaller cube's volume from the bigger cube's volume to get the difference in size. Hope this helps
5 0
4 years ago
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Elvis wants to buy his mother and a card for her birthday. Elvis has $25 to spend and selects roses for $19.75. How much can he
Lady_Fox [76]

He should have $5.25 left to spend on a card.

Hope This Helps! :3

5 0
3 years ago
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By the square root property. If b is a real number, and a^2 = b, then a = ___
Vadim26 [7]

Answer

a = √b or -√b

Step by step explanation

The square root property :

If x^2 =  c, then x = √c or x = -√c

According to the property, we get

a^2 = b,

a = √b or -√b

Thank you.


4 0
3 years ago
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