MATHEMATICS MIDDLE SCHOOL

Triangle ABC has an exterior angle with measure 112 degrees. Which of the following could NOT be the measures of the angles of triangle ABC?68,70,42
30,68,82
68,60,52
68,42,88

Answers

Answer 1
Answer: So open up the attachement I have posted so that way you can go along with me better. :)

So if the exterior angle is 112, then \sf{180-112 = z}

So \sf{z=68}

So that means any answer choice that does not have 68 has to be gone. Unfortunately, all of them have 48 so we can't eliminate any. 

Also, \sf{x+y=112} because x+y+z=180 but subtract the value of z which is 68 and we get that.

So that means that the other two angles in the answer choice should add upto 112.

A) 70+42 = 112
B) 30+82= 112
C) 60+52 = 112
D) 42+88 = 130

So D is the correct answer. Because it does not equal to 112

~After doing this I realized that there was an easier way~

Just add up all of the 3 angles in the answer choice to see if it equals to 180/

A) 68+70+42 = 180
B) 30+68+82 = 180
C) 68+60+52 = 180
D) 68+42+88 = 198

And 198 degrees in a triangle is not possible, so the answer is D.

\boxed{\sf{Answer~is~D~which~is~68,42,88}}

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B) Deana is calculating her driving time for a trip to the beach.
C) Carla is totaling the money made at the student council car wash.
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Answers

Answer:

C) Carla is totaling the money made at the student council car wash.

Step-by-step explanation:

In the case of Carla, who is raising money is important to calculate the exact amount of the proceeds, so it is not possible to make approximations.

In the rest of the scenarios, make an approximation as a practical and quick way to calculate the totals.
C) Carla is totaling the money made at a student council car wash

How do you convert kilometers to meters??

Answers

1km=1000m
If u had a number like 23KM, you would have to multiply it by 1000 but if the number is  23M than you would have to divide it by a thousand to get your kilometers.
To change km into m you must multiply by 1000
The word 'kilo' means 1000
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What is 8 3/8 + 10 1/3 =

Answers

Answer:

18 17/24

Step-by-step explanation:

for further reasoning how i got the awnser ask in the comments

Answer:18.7

Step-by-step explanation:

Find the qoutient 7 divided by 1/5

Answers

Answer:

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Step-by-step explanation:

Answer:

The answer is 35

Step-by-step explanation:

When we divide two fractions, such as 1/7 ÷ 1/5, we flip the second fraction and then we simply multiply the numerators with each other and the denominator with each other.

We also simplify the answers to fraction problems whenever possible.

a boat travels at a constant speed. after 20 minutes, the boat has traveled 2.5 miles. The boat travels a total of 10 miles to a bridge.

Answers

The speed of the boat is 0.125 miles/ minute, The time in which the total distance will be covered is 80 minutes.

What is Speed?

Speed is the rate at which an object travels certain distance in fixed period of time.

The distance covered by the boat is 10 miles

The time in which the distance is covered is 20 minutes

The speed of the boat is = distance / time

Speed = 2.5/ 20 = 0.125 miles/ minute

The time in which the total distance will be covered is

Time = 10 /0.125 = 80 minutes

The complete question is

What is the time required to complete the journey?

To know more about Speed

brainly.com/question/7359669

#SPJ2
2.5=20 min
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Answers

Decimal: 3.6
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while asa mixed fraction it is 3 3/5
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