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Nadusha1986 [10]
4 years ago
10

Given ∠A and ∠B are vertical angles with m∠A=20x+10 and m∠B=30x−10 .

Mathematics
1 answer:
snow_tiger [21]4 years ago
6 0

Answer:

x = 2

Step-by-step explanation:

Vertical angles are equal to each other. It means that,

∠A = ∠B

So,

20x+10 = 30x−10

Taking like terms together, we get :

20x-30x=-10-10

-10x=-20

x=2

So, the value of x is 2.

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Two students in the same Spanish class, Perry and Dakota, plan to get together after school
shtirl [24]

Answer:

Dakota=20 perry=25 together= 45

Step-by-step explanation:

First step, remember to keep 5

second step, if they are find keep multiplying until they both meet the same number which is 20, but they both have 20. But Perry will have 25 since he started a day before

3 0
3 years ago
You are stuck at home watching people walk down the street. Assuming half the people are wearing black shoes, 1/3 are wearing wh
svet-max [94.6K]

Answer:

The probability of seeing a person wearing black shoes before seeing a person wearing white ones = 60%

Step-by-step explanation:

People watched walking down the street = 100%

People wearing black shoes = 1/2 = 50%

People wearing white shoes = 1/3 = 33.33%

People wearing red shoes = 1/6 = 16.67%

Probability of black shoes to white shoes = percentage of persons wearing black shoes/sum of the percentages of people wearing black and white shoes)

= 50% : 33.33%

= 60% (50%/83.33%)

When expressed in ratio terms, it means that you will see 1.5 (50%/33.33% or 1.5 : 1) persons wearing black shoes before you see a person wearing white shoes.

3 0
3 years ago
Find the slope of the line passing through each of the following pairs of points.
ArbitrLikvidat [17]

Answer:

0

Step-by-step explanation:

m= y2-y1/x2-x1

=0-0/-3-5

=0/-8

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7 0
3 years ago
Read 2 more answers
Y = 2x – 4<br> y = -x + 5
Tasya [4]

Answer:

(3, 2)

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

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = 2x - 4

y = -x + 5

<u>Step 2: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>y</em>:                    2x - 4 = -x + 5
  2. Add <em>x</em> to both sides:           3x - 4 = 5
  3. Add 4 to both sides:           3x = 9
  4. Isolate <em>x</em>:                              x = 3

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define equation:                    y = -x + 5
  2. Substitute in <em>x</em>:                       y = -3 + 5
  3. Add:                                        y = 2
7 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ITS MATH I THINK U CAN DO IT
torisob [31]

Answer:

2

Step-by-step explanation:

2*2=4*2=8

8 0
3 years ago
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