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iren2701 [21]
3 years ago
15

HELP PLEASEE IM FAILING

Mathematics
2 answers:
Brrunno [24]3 years ago
8 0

Answer:

C

Step-by-step explanation:

∠ SVW = ∠ TWX = 84° ( corresponding angles are congruent )

∠ UVY = ∠ SVW = 84° ( vertical angles are congruent )

aleksklad [387]3 years ago
5 0

Answer:

failure is a step towards success!!

don't get urself drowned,,,,just get over it❤️

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PLZ HELP! A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains. If a tr
Kruka [31]

Answer:

3.8

Step-by-step explanation:

A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains.

If a trip of 300 miles took 3 hour and 48 minutes, how much of it was through the mountains?

Let d = distance traveled at 37.5 (thru the mountains)

then

(300-d) = distance traveled at 90 mph

Write a time equation, time = dist/speed

change 3 hr 48 min to hrs: 3 + 48/60 = 3.8 hrs

plain time + mountain time = 3.8 hrs

%28300-d%29%2F90 + d%2F37.5 = 3.8

Multiply 90*37.5

3375*%28300-d%29%2F90 + 3375*d%2F37.5 = 3.8(3375)

cancel the denominator

37.5(300-d) + 90d = 12825

11250 - 37.5d + 90d = 12825

52.5d = 1575

d = 1575/52.5

d = 30 mi thru the mountains

Check this, find the distance on the plain

300-30 = 270 mi

Find the actual time at each speed

270/90 = 3 hrs

30/37.5 = .8 hrs

-----------------

total time: 3.8 hrs

7 0
3 years ago
The hanger diagram models the equation 2(n + 7) = 24. What could be the
baherus [9]

Step-by-step explanation:

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4 0
3 years ago
Element X is a radioactive isotope such that every 9 years, its mass decreases by half. Given that the initial mass of a sample
4vir4ik [10]

Answer:

2.9 years

Step-by-step explanation:

Given that :

Half-life t1/2 = 9 years

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−0.096910 = −0.301029 * t/9

t/9 = 0.096910 / 0.301029

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t = 0.3219291 * 9

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5 0
2 years ago
Which expression represents eight times a number, v?
Trava [24]

Answer:C. Easy

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP!! QUIZ TOMORROW ☹️
Sunny_sXe [5.5K]
The right answer is c

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