1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetach [21]
3 years ago
12

What would be the reasons for lines 3 and 4? A. Addition property; subtraction property B. Addition property; solve C. Substitut

ion property; subtraction property D. Substitution property; prove

Mathematics
2 answers:
Vesna [10]3 years ago
7 0

Answer:

C

Step-by-step explanation:

We are given that angle 1 and angle 2 are supplementary angles.

m\angle 1=128^{\circ}

We  have to find the reason for line 3 and 4.

1.Angle 1 and angle 2 are supplementary angles

m\angle 1=128^{\circ}

Reason:Given

2.m\angle 1+m\angle2=180^{\circ}

Reason:Definition of supplementary angles.

3.128^{\circ}+m\angle 2=180^{\circ}

Reason:Substitute property

4.m\angle 2=180-128=52^{\circ}

Reason:Subtraction property of equality

Hence, option  C is true.

m_a_m_a [10]3 years ago
5 0

Answer:

I chose

D. Substitution property; prove

You might be interested in
Suppose the linear regression line y=-0.3x + 11.2 predicts the time, in
choli [55]
D y= -0.3(7) + 11.2
= 9.1
5 0
3 years ago
Read 2 more answers
Ratioz rate unit rate <br>I have a quiz tmr 7th grade I need to learn ratio, rate unit rates!!! ​
posledela

Alright! I'll help you. Let me tell you what's ratio, rate unit rates all about! :D

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. If you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

What is the difference between a unit rate and a ratio?

Guide the discussion so that students understand that a ratio is simply the quotient of two numbers, while a rate is the ratio of two measurements that have different units (like miles and hours, or dollars and ounces). Reinforce the fact that a rate is usually expressed in per unit form, where the denominator is 1.

What are some examples of ratios?

In mathematics, a ratio is a relationship between two numbers indicating how many times the first number contains the second. For example, if a bowl of fruit contains eight oranges and six lemons, then the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).

Is a rate always a ratio?

Rates and ratios. ... A rate is a little bit different than the ratio, it is a special ratio. It is a comparison of measurements that have different units, like cents and grams. A unit rate is a rate with a denominator of 1.

How do I find the unit rate?

To get the unit to equal 1, divide both numbers by the denominator; your answer is the number you get by dividing the numerator by the denominator. Use this method to calculate unit cost, too—you're calculating how much 1 item is worth, after you're given the amount that multiple items cost.

Here are some questions and how to answer them to help you! I hope this helps you! c:

5 0
3 years ago
What is the value of x?
Nady [450]

Answer: X equals B.


Step-by-step explanation: all the degrees in a triangle add to be 180, so add up the given angles and subtract from 180 to get the missing angle.


5 0
3 years ago
Read 2 more answers
What does n/5 = ? <br><br> A) f/9<br><br> B) 9/5
nadezda [96]

Answer:

I think is A but check it just in case

Step-by-step explanation:

3 0
3 years ago
Alina and Asim share Rs 210 in the ratio 2:5. How much money did each of them get?
slavikrds [6]

Answer:

Step-by-step explanation:

Alina=2x---eq(1)

Asim=5x----eq---(2)

So,we get

2x+5x=210

7x=210

x=30

Now,Putting '30' in eq 1 and eq 2

2*30=60

5*30=150

Therefore Alina got 60 Rs while Asim got 150 Rs

5 0
3 years ago
Other questions:
  • Edward plans to put $75 into a savings account. He can place his money into an account represented by b(x) = 7x + 75, or into an
    14·2 answers
  • The graphs of y = –7x + 12 and y = 2/3x –2/3 are shown. Which region describes the solution of the system of inequalities y ≤ –7
    15·1 answer
  • 4. How much sugar is needed to make 3 cup cakes?
    14·1 answer
  • 8.06
    6·1 answer
  • This chart shows the cost per pound of different fruits.
    10·2 answers
  • Gwen bought a 5 pound bag of Finch bird seed that cost $16.79. Find the cost per pound of bird seed.
    12·1 answer
  • If a salesman had 3 dimes to make a $3.05 phone calls , how many quarters would he needs to add to the dimes to make the call us
    13·1 answer
  • I need help I don’t understand this problem
    12·1 answer
  • In the equation y = 8 - 10x what is the slope
    14·1 answer
  • D(x) = -2|x^(2 )-3.6| for x= 5.5
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!