Mathematics High School

In a triangle, the measure of the first angle is five times the
measure of the second angle. The measure of the third angle
is 40 less than five times the measure of the second angle.
What is the measure, in degrees, of each angle?

Answers

Answer 1
Call the 2nd angle x (in degrees).
Add the 3 angles.
The sum is 180 degrees.

Related Questions

help due in a few minutes​

Answers

Answer:

x = 15

Step-by-step explanation:

All angles add up to 180

so,

2x + 4x + 10 + 6x - 10 = 180

combine like terms

12x = 180

divide by 12

x = 15

check it by plugging it in

2x = 2(15) = 30

4x + 10 = 4(15) + 10 = 70

6x - 10 = 6(15) - 10 = 80

30 + 70 + 80 = 180

Marcus jumped “x” feet.
Bridget jumped 2/3 more than the amount of what Marcus jumped.

Write an expression for the number of feet Bridget jumped.

pls I have 2 mins

Answers

Bridget would be: 2/3x
Bridget is x + 2/3x = 1 2/3x

What property of addition is shown?
k+0=k

Answers

Identity property of addition
identity property of addition

Solve for t.

-18.18 = 6t

Question 1 options:

t= -24.18


t= -3.03


t= 3.03


t= -13.18

Answers

Answer:

-3.03

Step-by-step explanation:

divide -18.18 by 6

Answer:

t= -3.03

Step-by-step explanation:

In order to solve for t, we need to isolate it. We would do this by dividing both sides by 6:

[tex]t= -18.18/6[/tex]

Therefore t= -3.03

Hunter needed to get his computer fixed. He took it to the repair store. The technician at the store worked on the computer for 2.5 hours and charged him $155 for parts. The total was $417.50. Write and solve an equation which can be used to determine xx, the cost of the labor per hour

Answers

Answer:

Labor costs $205 per hour.

Step-by-step explanation:

1. Subtract the cost for parts.

$417.50 - $155 = $262.5

2. Divide the labor cost by the number of hours (2.5)

$262.5 / 2.5 = 105

Answer:105

Step-by-step explanation:

Just becuase

A yard is equal in length to three feet. The function f(x) takes a measurement in yards (as input) and returns a measurement in feet (as output).What number will the function return if the input is 15.4?

Answers

Answer:

it should be 4.5

Step-by-step explanation:

Answer:

0.428 yd

Step-by-step explanation:

x/1 = 15.4/3

36x = 15.4

x=0.428 yd

Use the Distributive Property to write 2(-5+3) as an equivalent expression.
What is the value of the expression?

A. 2(8); 16
B. 2(-5) + 2(3); -4
C. 2(-5) + 3; 13
D. (5 + 3)2; 16

Answers

the correct answer is B: -4

Pls answer..............

Answers

Answer:

b is correct

Step-by-step explanation:

B is the right answer I think!

Find the value of x.

Answers

Answer:

x = 12

Step-by-step explanation:

Using the formula (which is a geometric mean):

a       y

---- = -----

x       a

Where a is the altitude (6), x is a projection (x), and y is the other projection (3):

6       3

---- = -----

x       6

Cross multiply:

36 = 3x

12 = x

x = 12

Myrtle is having a birthday party and is buying pizza for everyone. She buys 9 pizzas for $40.50 all together what is the unit rate for the pizza in pizza

Answers

40.5/9= 4.5. The unit rate is 4.5 for the pizzas
yeeeeyeeeeeeeeeeeeeee

PLEASE HELPP!! it’s due in an hour!!

Answers

Answer:

12x I think

Step-by-step explanation:

this is very confusing.

2x² + 2x - 4 = 2x ( x + 1 - 2 )

4x + 2x - 4

8x-4

4x = 2x ( x + 1 - 2)

8x + 2 - 2

8x + 4x

= 12x. I think 12x is the correct factor.

help pls dont rip me off for points

Answers

Answer:

A I think.

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation:

U have to do the math on each option choices to see what they got in the question

Which number line would be needed to create a dot plot for the data on the number of siblings?

1.) a number line from 0 to 5
2.) a number line from 1 to 5
3.) a number line from 0 to 7
4.) a number line from 1 to 7

Answers

Line 3. 0 being the least number of sibling a person would have, and 7 being the greatest.

Answer:

1.

0 to 5

Step-by-step explanation:

Factorise fully 28y2 – 24y

Answers

Answer:

4y(7y - 6)

Step-by-step explanation:

Pleaseeee I needddd major help

Answers

Answer:-2/5

Step-by-step explanation:

You need to drop 2 run 1 to the right

1. Which of the following are sets? Justify your answer.

(a) The collection of all the days in a week beginning with the letter "T".

(b) The collection of all difficult questions in the chapther on sets.

(c) The collection of girls in your class.

(d) The collection of all vers in India.

(e) The collection of all active teachers in the school

(f) The collection of all integers more than 3.

(g) The collection of all beautiful lower in the park. the chapter on sets.

Answers

Answer: B,C,D,E,G

Step-by-step explanation:

What is the surface area of the sphere below? 11.3 A. 324 units2 324 units2 C. 36 units2 D. Cannot be determined​

Answers

Answer:

A=4πr2

Step-by-step explanation:

The correct answer is A

Elizabeth earned 3 times as much as Rebeca selling Girl Scout cookies. If Elizabeth earned $426, how much did Rebeca earn?

Answers

Answer:

$142

Step-by-step explanation:

E = 426

E=3R

426 = 3R

R = 142

mid-point of (-2,-4) and (4,6)?​

Answers

          (1,1)

Hope that helps :)

A right triangle has an angle that measures 56 and the adjacent side measure 17. What is the length of the hypotenuse to the nearest tenth?

explanation needed pls <3

Answers

Answer:

IM DOING STUFF LIKE THAT

Step-by-step explanation:

Can someone give me the answer??? If you think u know the answer or ur guessing don’t answer it I need the right answer. Thank you

Answers

I think it’s the 3rd one

56 is 28% of an unknown number is (x)​

Answers

Answer:

Change 28% to a decimal by moving the decimal point 2 places to the left:

28% = 0.28

Write the question as an equation to get:

56 = 0.28x

Now to solve for x, divide both sides by 0.28:

x = 56 / 0.28

x = 200

The unknown number is 200.

Step-by-step explanation:

Step-by-step explanation:

28% of an unknown number is (x)=56

28/100 of x=56

x=56×100/28=200

A guy wire (a tensioned cable designed to add stability to a free-standing structure) is attached to a telephone pole whose height is 18 ft. If the wire is attached to the ground at a point 24 ft away from the base of the pole, what is the slope of the wire?

tysm :P

Answers

the slope of the wire is 6 feet

WHY DOESN'T ANYBODY HELP ME!!!!! PLEASE ANSWER, and YOU WILL GET YOUR BRAINLIEST!!!
(Sat Prep) Find the value of x)

Answers

Answer:

1. x = 120°

2. x = 115°

Step-by-step explanation:

For the first question, you can see that the two lines are parallel. This means you can use any of the alternate interior angles, alternate exterior angles, corresponding angles, consecutive interior angles, and consecutive exterior angles.

You can see that the transversal cutting the two parallel lines make a 40° angle, and through alternate interior angles, the angle next to x is also 40°.

Because a straight line is 180°, the three angles that make up the straight line will add up to 180°. So:

x + 20° + 40° = 180°

x + 60° = 180°

x = 120°

For the second question, extend the line (the left one marked with 1 arrow) to make a smaller triangle attached to the parallelogram.

Because this is a parallelogram, opposite angles are congruent. So the opposite angle of x is also x.

Straight lines are 180°, so 180 - x will be what the angle measure is. If this is too confusing, refer to the image below.

Those two angles, 50° and (180 - x)°, will add up to be the exterior angle, which is also x.

So:

50 + 180 - x = x

230 = 2x

115 = x

x = 115

(9+6) x 8^2 + (6+5)

solve with PEMDAS quick!​

Answers

Answer:

971

Step-by-step explanation:

use the pemdas method

I need help with this asap!

Answers

Answer:

x=-40B

Step-by-step explanation:

X=40b I think I’m positive

find the value of 9x+4y when x=4 and y=-3

Answers

Answer:

you substitute x for 4 and so you multiply 9 x 4 which will give you 36 and then you have to add four times y so you substitute y for -3 and you add 36 - 12 which will give you 24

i wanted to know the answer to this question so bad but i didnt let me ..so can somebody help me and i will give you the brainlist

Answers

Answer:

B.

Step-by-step explanation:

Here are the first four terms of a sequence.
5 9 13 17
Write an expression for the nth term of this sequence.​

Answers

Answer:

4n + 1

Step-by-step explanation: The numbers are rising by 4, so this gives us 4n. Term number 1: 4n = 4, but the first number in the sequence is 5 so we have to add 1.

Term number 2: 4n = 8, but the second number in the sequence is 9 so, again, we have to add 1.

ABC is reflected over the X axis. What are the vertices of A’B’C’?

Answers

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

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