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Eduardwww [97]
2 years ago
8

Solve the system of equations by substitution y = 2x - 4 7x - 2y = 5​

Mathematics
2 answers:
denis-greek [22]2 years ago
7 0

Answer:

Point form: ( -1 , -6)

Equation form: x= -1 , y= -6

u should mark brainliest ;)

Amanda [17]2 years ago
3 0
3x + 4 ,, hope i helped !!
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Paul and Quinn share some money in a ratio 3:2, Paul gets 60 more than Quinn, how much does Quinn get
wlad13 [49]

Answer: 120

Step-by-step explanation:

3+2=5

Let x be the amount of money to be shared

Paul’s share which is (3/5)x is 60+ Quinn’s share which is (2/5)x

Therefore

(3/5)x= (2/5)x + 60

(3/5)x - (2/5)x= 60

(x/5)=60

Cross multiply

x= 60*5=300

It means that Quinn’s share is (2/5)(300)= 120

7 0
3 years ago
Read 2 more answers
If I have (-2, 7) and (6, y) distancia = 10 . How can I find y?
shusha [124]

Answer:

y = 13

Step-by-step explanation:

Calculate the distance d using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 2, 7) and (x₂, y₂ ) = (6, y)

d = \sqrt{(6+2)^2+(y-7)^2}, that is

d = \sqrt{8^2+(y-7)^2} = 10

\sqrt{64+(y-7)^2} = 10 ← square both sides

64 + (y - 7)² = 100 ( subtract 64 from both sides )

(y - 7)² = 36 ← take the square root of both sides

y - 7 = 6 ( add 7 to both sides )

y = 13

7 0
2 years ago
How to solve 24= -v/3
vredina [299]

24 = -v/3   (first you multiply 3 to each side)
<u>×3     ×3</u>

<u />72 = -v     (then you divide -1 from each side)

-72 = v<u><u /></u><u />

8 0
3 years ago
A mass weighing 64lb is attached to a spring hanging from the ceiling and comes to rest at its equilibrium position. At time t=0
Oxana [17]

Answer:

The steady state solution of the system is calculated in the diagram below:

5 0
3 years ago
ABCD is a rhombus. Fill in the missing steps in the two column proof to explain why ABC is congruent to CDA.
White raven [17]
1)Opposite sides of a rhombus are have the same length. 
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3) The side AC is common to the two triangles ABC and CDA. 
4)The two angles ABC and CDA are congruent   by the SSS theorem of 
congruent triangles 
8 0
3 years ago
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