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2 years ago

Pls help only those who know for certain answer pls

Mathematics

1 answer:

castortr0y [4]2 years ago

3 0

Answer:

x = 111

Step-by-step explanation:

All angles in a triangle add up to 180°. Therfore, you can solve by adding up the values of the two known angles (37 + 32 = 69) and subtract this value from 180 to get the missing angle (180 - 69 = 111).

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Find an ordered pair that is solution for linear equation 4x-5y=20

Eduardwww [97]

Answer:

(5,0) is the solution of the given equation.

(0,-4) is the solution of the given equation.

Step-by-step explanation:

Here, the given equation is: 4 x- 5y = 20

Now, we need to find a value for (x,y) such that the above equation is satisfied.

The ONLY POSSIBLE way to do this is Hit and Trial.

Let us substitute x = 0

Then the equation becomes : 4 (0) - 5y = 20

or, -5 y = 20 ⇒ y = -20/5 = - 4

So, for x = 0, y = - 4

So, (0,-4) will be the solution of the given equation.

Let us substitute y = 0

Then the equation becomes : 4 (x) - 5(0) = 20

or, 4 x = 20 ⇒ x = 20/4 = 5

So, for x = 5, y = 0

So, (5,0) will be the solution of the given equation.

We can try another substitution as well.

For any value of x, we will get a corresponding value of y. So, (x,y) will be the solution of the given equation.

8 0

3 years ago

Solve the system:

marysya [2.9K]

Answer:

390

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

In the isosceles trapezoid ABCD, find the value of x.

Semenov [28]

Answer:

Step-by-step explanation:

3x+15=60

3x=45

x=15

6 0

2 years ago

How to do? Question #6

aksik [14]

STEP 1

Since AB = CD , M is the midpoint of AB , and L is the midpoint of CD

then OM = OL

2x - 3 = x + 5 → x = 8

OM = 2x - 3 → OM = 2(8) - 3 → OM = 16 - 3 → OM = 13

STEP 2

Since AB = 60 and M is the midpoint of AB

then MB = 30

STEP 3

Draw a line from O to B to create triangle OMB. Notice that OM is perpendicular so M is a 90° angle, so the Pythagorean Theorem can be used.

OM² + MB² = OB²

13² + 30² = OB² substituted from steps 1 and 2

169 + 900 = OB²

1069 = OB²

32.7 = OB

Realize that OB is the radius.

Answer: 32.7

7 0

3 years ago

At a school 40% of the sixth grade students said that hip hop is their favorite kind of music, how many sixth grade students are

Kryger [21]

Answer:

The answer is 2.5 times The no of students who said that hip hop is their favorite kind of music

Step-by-step explanation:

Let the total no of sixth grade students be n

At a school 40% of the sixth grade students said that hip hop is their

favorite kind of music

Let the number of students who like the hip hop be h

∵ h = 40 % of n

h = 40/100 × n

n = 100/40 × h

n = 2.5 × h

∴ The total no of sixth grade students = 2.5 times The no of students

who said that hip hop is their favorite kind of music

6 0

3 years ago