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IgorC [24]
2 years ago
6

Three angles of a quadrilateral are 75,120, 90,then the fourth angle..​

Mathematics
1 answer:
Roman55 [17]2 years ago
5 0

Answer:

75

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Geometry</u>

  • Sum of Angles in a Quadrilateral: 360

Step-by-step explanation:

<u>Step 1: Set up</u>

75 + 120 + 90 + ∠4 = 360

<u>Step 2: Solve</u>

  1. Add:                                                                                                                   285 + ∠4 = 360
  2. [Subtraction Property of Equality] Subtract 285 on both sides:                   ∠4 = 75
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A submarine dives 20 meters each minute. what is the total change in depth after 10 minutes​
Paha777 [63]

Answer: 200 Meters after 10 minutes.

Step-by-step explanation:

To find the answer you must multiply 20 for every minute.

Hope this helped :D

7 0
3 years ago
A toothbrush and toothpaste cost one dollar and ten cents total. The toothbrush costs a dollar more than the toothpaste. How muc
Aleks [24]
Cost of the toothbrush and the toothpaste together = $1.10
Let us assume the cost of the toothpaste = x
Then
The cost of the toothbrush is = (x + 1) dollar
Then we can write the equation as
x + x+ 1 = 1.10
2x + 1 = 1.10
2x = 1.10 - 1
2x = 0.10
x = 0.10/2
  = .05 dollars
So the cost of the toothpaste is 0.05 dollars.<span>I hope the procedure is clear to you.</span>



5 0
3 years ago
What is the Difference is between the long time and shortest time students spent riding on the bus
lisabon 2012 [21]
The longest is 4/6 of a hr and the shortest is 1/6 of a hr
Subtract -3/6 hr
4 0
3 years ago
Read 2 more answers
Acepromazine is avaliable in a 100mL vial, that contains 10mg/mL, if 1mL of acepromazine is diluted 1:100, how many mg are in a
rewona [7]

Answer:

1ml=100 mg

5 ml= 500mg

Step-by-step explanation:

7 0
3 years ago
On an indoor circular track of circumference 50 feet, Joneal starts at point $S$, runs in a counterclockwise direction, and then
Archy [21]

Answer:

He stoped on 3th quarter,i.e, $C$.

Step-by-step explanation:

He ran 105 full circles ( 5280/50=105 ( rst= 30ft) ). So in the last circles he started from point S to run 30ft more.

The quarter of the circle is long 50ft/4= 12,5ft. So for 30 feets he must run 2 quarters, its 25ft. The last 5ft he ran on the 3th quarter, so he stoped on C.

This answer $C$, if $C$ is the 3th quadrant, i don't see the picture of the track.

4 0
3 years ago
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