All categories

4 years ago

Pls help me on this I’ll give the brainliists to whoever answers right first.

Mathematics

1 answer:

professor190 [17]4 years ago

8 0

The answer is C. 2x-70 and x+30 are congruent (equal in size) so 2x-70=x+30
then you find that x=100. So we solve 2(100)-70=130. We then solve for Y with 5y+130=180 Linear angles Paris always add to 180. We come out with Y=10

You might be interested in

Please solve 2(5m+3)-8m=4

garik1379 [7]

2(5m+3)-8m = 4

10m+6-8m = 4

2m = 4-6

m = -2/2

m= -1

6 0

3 years ago

Read 2 more answers

An apartment building is planning on replacing refrigerators in 56 of its units. If therefrigerators cost 803 each, estimate the

Rudiy27

803=800 56=60 So the cost for the refrigerators is 800×60=48000

3 0

4 years ago

An arts academy requires there to be 4 teachers for every 60 students and 3 tutors for every 27 students. How many students does

zhenek [66]

Answer:

15students per 1 teacher

9 student per 1 tutor.

8 tutors for 72 students

Step-by-step explanation:

From the question, arts academy requires there to be 4 teachers for every 60 students and 3 tutors for every 27 students

✓ 4 teachers for every 60 students

4teacher =60students

Then divide both sides by 4 , i.e (60/4)=15. Which means for every 1 teacher there is 15 students, hence we need 15students per 1 teacher.

✓3 tutors for every 27 students,

3 tutors = 27 students then divide both side by "3" (27/3)= which means we need 9 student per 1 tutor.

How many students does the academy have

per teacher?

15students per 1 teacher

Per tutor?

9 student per 1 tutor.

How many tutors does the academy need if it has 72 students?

Since we need 9 student per 1 tutor., Then to know the numbers of tutor with 72 students,

9 student = 1 tutor.

72 students= X tutor

If we cross multiply we have

72=9X

X=8 tutors

Therefore, we need 8 tutors for 72 students

7 0

3 years ago

Two physics students are doing a side competition during a game of bowling, seeing who can toss a ball with the larger momentum.

dem82 [27]

Answer:

she should beat a speed of v₂ = 6.04 m/s in order to win the competition

Step-by-step explanation:

Since the momentum p is defined as

p = m*v

where

m= mass of the ball

v= velocity of the ball

denoting 1 and 2 as the first and second bowler , then to reach the momentum of the first bowler

p₂=p₁

therefore

m₁*v₁ = m₂*v₂

v₂ = v₁ * (m₁/m₂)

replacing values

v₂ = v₁ * (m₁/m₂) =8.6 m/s * (4.5 kg/6.4 kg ball) = 6.04 m/s

then since the momentum p = m*v increases with increasing v (at constant m) , she should beat a speed of v₂ = 6.04 m/s in order to win the competition

6 0

4 years ago

What is the range of the function f(x) = 2x1 – 3?

Vinil7 [7]

Answer:

So, the range of this function will be all real numbers.

or R = ( -∞, +∞ )

Step-by-step explanation:

First I would like to do is to show you how to find the domain of the function.

The domain is the set of all x values or input values that are going to make our function true.

The graph of this linear function i.e f(x) = 2x1 – 3 will be a straight line where for all the values of x (whether positive or negative) there is a point on this function that has a y value.

So, for every input of x ( no matter whether it is negative or it is positive, whether it is the lowest or it is the highest), there will always be an output. There will be no breaks on the graph.

So, the domain of this function will be all real numbers.

Or D = ( -∞, +∞ )

In order to determine the range, we must know that for every input value of x ( no matter whether it is negative or it is positive, whether it is the lowest or it is the highest, there will be always be the value of y (output) of this function that can be any real number. So, the set of all the possible values of y will be the range of the function.

So, the range of this function will be all real numbers.

or R = ( -∞, +∞ )

Keywords: Domain, Range, Real Number

Learn more about domain and range from brainly.com/question/85220

#learnwithBrainly

5 0

3 years ago