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mixer [17]
2 years ago
13

PLEASE HELP ASAP!!!! 100% CORRECT ANSWERS ONLY PLEASE!!!!

Mathematics
2 answers:
sladkih [1.3K]2 years ago
5 0
It is Alternate Exterior Angles Theorem or substitution property 
stealth61 [152]2 years ago
3 0
The answer is "alternate exterior angles theorem."
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2. Solve the system of equations using the substitution method.
Dimas [21]

Answer:

x = 1

Step-by-step explanation:

2x + 3y = 20

2x + 3(10-4x) = 20

2x + 30 - 12x = 20

combine like terms

-10x + 30 =  20

        -30      -30

-10x = -10

divide both sides by -10

x = 1

Hope this Helps!!!

7 0
2 years ago
Which equation represents the line that passes through the point (4, -5) and is perpendicular to the line x + 2y = 5?
Lerok [7]

Answer:

y = 2x - 13

Step-by-step explanation:

Equation of a line is y = mx + c, m is the gradient and c is the intercept

The line passes through points 4 and -5, x is 4 and y is -5

-5 = 4m + c

When two lines are perpendicular, the products of their gradients are equal to -1, m1 * m2 = -1

x + 2y = 5

2y = -x + 5

y = (-1/2 * x) + 5

therefore m = -1/2

m1 * m2 = -1

m * -1/2 = -1

-m = -2 , therefore m = 2

-5 = 4 * 2 + c

c = -5 - 8, which is -13

Therefore the equation for the line is

y = 2x - 13

7 0
3 years ago
HELP 6TH GRADE MATH<br><br><br><br><br> Enter the phrase as an algebraic expression. b divided by 9
ozzi

Answer:

\frac{b}{9} An algebraic expression is just an equation without an answer

3 0
3 years ago
What is the probability of flipping two coins and both landing on heads
prisoha [69]

Answer:

The probability of getting heads on the toss of a coin is 0.5. If we consider all possible outcomes of the toss of two coins as shown, there is only one outcome of the four in which both coins have come up heads, so the probability of getting heads on both coins is 0.25. The second useful rule is the Sum Rule.

3 0
3 years ago
Read 2 more answers
on his shelves trenton has 15 biogrophies,15 science fiction books,7 refrence books,and 11 mystery books. find the ratio of biog
weeeeeb [17]
The ratio of books is 15:48
6 0
2 years ago
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