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Natali [406]
3 years ago
6

If the perimeter of this trlangle is 15 centimeters, what is the value of n? 5n - 6 2n + 1 Express your answer as a decimal numb

er. n =​
Mathematics
1 answer:
Paraphin [41]3 years ago
3 0

Answer:

n =1.78

Step-by-step explanation:

2(5n-6)

2(n+1)

10n-12+4n+2=15

14n-10=15

subtract both sides by 10

14n=25

25/14

n=n =1.78571428571

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Dafna11 [192]

Answer:

n = 18

Step-by-step explanation:

Corresponding parts of similar triangles are in same ratio

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6 0
3 years ago
Find the values of x and y given that ABCD is congruent to EFGH.
Kazeer [188]

Answer:

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Step-by-step explanation:

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so, x = 7

Now,

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Mila [183]

Answer:

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Diano4ka-milaya [45]
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7 0
3 years ago
Can someone help with this math question please
Ugo [173]
DC-10
At t=0 the altidude is 4500 feet
It's descending at a rate of 150 feet per minute, then each 5 minutes it descends (150 feet/min)(5 min)=750 feet. Then:
At t=5 the altitude is 4500 feet-750 feet=3750 feet
At t=10 the altitude is 3750 feet-750 feet=3000 feet

727
At t=0 the altidude is 600 feet
It's climbing at a rate of 75 feet per minute, then each 5 minutes it climbs (75 feet/min)(5 min)=375 feet. Then:
At t=5 the altitude is 600 feet+375 feet=975 feet
At t=10 the altitude is 975 feet+375 feet=1350 feet

The graph with these characteristics is Graph B.

Answer: The graph B shows when the two planes will be at the same altitude 
 
3 0
3 years ago
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