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Ede4ka [16]
3 years ago
13

2y-5=4y what is y? really stuck

Mathematics
2 answers:
Alenkasestr [34]3 years ago
5 0
The y is 9:EXAMPLE took the test
Alik [6]3 years ago
4 0

Answer:

y = - 5/2

Step-by-step explanation:

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Passes through (3, 4) and (5, -4) how do I solve​
nikitadnepr [17]

Answer:

y = - 4x + 16

Step-by-step explanation:

Assuming you require the equation of the line passing through the points.

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (3, 4) and (x₂, y₂ ) = (5, - 4)

m = \frac{-4-4}{5-3} = \frac{-8}{2} = - 4, thus

y = - 4x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (3, 4), then

4 = - 12 + c ⇒ c = 4 + 12 = 16

y = - 4x + 16 ← equation of line

8 0
3 years ago
Three times the sum of a number and 2<br> is 7
Ainat [17]
3(x+2)=7 X=1/3 Because 3(x+2) would simplify to 3x+6=7 and then its a two-step equation
8 0
3 years ago
Read 2 more answers
From Midnight to 6 am the temperature rose 8 degrees C. At 6 am the temperature was -21 degrees C. What was the temperature at m
Alika [10]
Hello!

We know that from midnight to 6am the temperature went up 8° and at 6am it was -21°

To find what it was at midnight we have to work backwards

Since it went up we have to subtract 8 from -21

-21 - 8 = -29

The answer is -29°C

Hope this helps!
7 0
3 years ago
Read 2 more answers
How much principal must be deposited to earn $1000 simple interest in 2 years at a rate of 5%
Murrr4er [49]

Answer:

1100                                                                 brainliest please

Step-by-step explanation:

1000×2×0.05=100

1000+100=110

4 0
3 years ago
PLEASE IM IN CLASS AND I REALLY NEED AN ANSWER!! 20 PTS &amp; BRAINLIEST!!
makkiz [27]

Answer:

40

Step-by-step explanation:

you add all the numbers up then divide by how many numbers there are

7 0
3 years ago
Read 2 more answers
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