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murzikaleks [220]
4 years ago
5

Angle AOC and angle BOD are vertical angles. If m∠AOC = (4x + 40)° and m∠BOD = 120°, which equation could be used to solve for x

?
Mathematics
1 answer:
puteri [66]4 years ago
3 0

Answer:

4x+40=120

Step-by-step explanation:

Vertical angles are congruent so you would set them equal to each other.

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7 0
2 years ago
The 888 mile trip to the ranch took three times as long as the 280 mile trip to the ocean because the speed was 4 mph less than
ziro4ka [17]

Alright, lets get started.

Suppose the speed to the ranch = x mph

So, speed to the ocean will be = (x-4) mph (because the speed was 4 mph less than the speed to the ranch)

Distance to the ranch = 888 miles

time moving to the ranch = \frac{distance}{speed}

time moving to the ranch = \frac{888}{x}

time moving to the ocean = \frac{280}{x-4}

As per given in question, the 888 mile trip to the ranch took three times as long as the 280 mile trip to the ocean , means

\frac{888}{x} = 3 * \frac{280}{x-4}

\frac{888}{x}= \frac{840}{x-4}

Corss multiplying

888 (x-4) = 840 x

888 x - 3552 = 840 x

48 x = 3552

x=74

Hence speed to ranch = 74 mph

Hence speed to ocean = 74 - 4 = 70 mph

time for trip to ranch = \frac{888}{74}  = 12 hrs

time for trip to ocean = \frac{280}{70} = 4 hrs

So, speed to ranch is 74 mph and trip time is 12 hrs and speed to ocean is 70mph and time is 4 hrs.

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3 0
3 years ago
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Write a pair of fractions as a pair of fractions with a common denominator using the fractions 1/2 and 1/3.
Vinvika [58]

Answer:

3/6, 2/6.

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4 0
3 years ago
You plant a tree that is 36 36 inches tall. After one year, the tree is 43 43 inches tall. Which expression describes the percen
Darya [45]

Answer: 36 - 100%

43 - x  %

Step-by-step explanation 36 - 100%

43 - x  %

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we should remove '100%' from new value, because we find only increase.. no new value in percent.

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x = 119+ 16/36 -100

x = 19 +4/9

6 0
3 years ago
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