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Viktor [21]
3 years ago
13

I need help with this question... the topic is solving linear systems of equations using elimination (addition). Please give exp

lanation so I can understand how to do it.

Mathematics
1 answer:
gregori [183]3 years ago
7 0

Answer:

x= -1

y=2

Step-by-step explanation:

6x+5y=4

6x-7y=-20

Subtract

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A line contains the points (6,8), (-2, k) and (-10, 4). What is the value of k?
Alik [6]

Answer:

k = 6

Step-by-step explanation:

Step 1: Find slope <em>m</em>

m = (4 - 8)/(-10 - 6)

m = -4/-16

m = 1/4

y = 1/4x + b

Step 2: Find <em>b</em>

4 = 1/4(-10) + b

4 = -5/2 + b

b = 13/2

Step 3: Rewrite equation

y = 1/4x + 13/2

Step 4: Find <em>k</em>

y = 1/4(-2) + 13/2

y = -1/2 + 13/2

y = 12/2

y = 6

8 0
3 years ago
Read 2 more answers
A bus travels 36 miles in 45 minutes. How many miles will the bus travel in 60 minutes at this rate. Show a ratio.
ankoles [38]
A rate is a special ratio in which the two terms are in different units. A rate is a little bit different than the ratio, it is a special ratio. For this case, the rate would have units of miles per minutes. We calculate as follows:

rate = 36 miles / 45 min = 0.8 miles per min
distance traveled = 0.8 miles per min ( 60 min ) = 48 miles
3 0
4 years ago
Gwen is building a wooden birdhouse for her mom. She finds a plank in the garage to use for
Helen [10]

Answer:

p = 11.75 - 2 = 9.75

Explanation:

2 + 9.75 = 11.75, which was the original length of the plank, therefore:

11.75 - 2 = the correct and current length of the plank

4 0
3 years ago
Simplify 6uw^-3 x 4uw^6
neonofarm [45]
Answer: (2^3 ⋅3u^2 w^3)


2•3uw^(-3)) • 4) • u) • w^6

2^1 multiplied by 2^2 = 2^(1 + 2) = 2^3

(2^3•3uw^(-3)) • u) • w^6
w^(-3) multiplied by w^6 = w^((-3) + 6) = w^3

6 0
4 years ago
this month salespersons a made 11% of $67,530. salesperson b made 8% of $85,740. who made more commission this month? how much d
Paul [167]
Salesperson A made $7428.30
Salesperson B made $6859.20
Salesperson A made more commission this month and made $7428.30
7 0
4 years ago
Read 2 more answers
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