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ira [324]
3 years ago
15

Solve the following system of equations using SUBSTITUTION method. {x−3y=2 2x−6y=6

Mathematics
1 answer:
serious [3.7K]3 years ago
7 0

Answer:

x=3-3y

Step-by-step explanation:

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∠3 ​ and​ ​ ∠4 ​ ​are complementary angles.<br><br> m∠4=49°<br><br> What is the measure of ​​ ∠3 ​?
tatyana61 [14]

Answer: complementary angles have 90 degrees therefore you have to do the following:

M<4 : 49

90-49=41

M<3=41

Step-by-step explanation:

8 0
3 years ago
What is the slope?<br> (0, 4)<br> (2, 10)
fredd [130]

Answer:3

Step-by-step explanation:

10-4/2-0 = 6/2 = 3

7 0
3 years ago
Read 2 more answers
I need help with 25.
noname [10]

Sum of linear pair of angles = 180°

so

<EFG + <GFH = 180°

2n + 21 + 4n + 15 = 180°

6n + 36 = 180°

6n = 144

n = 24

<EFG = 2(24) + 21 = 69°

<GFH = 4n + 15 = 4(24) + 15 = 111°

6 0
3 years ago
A dolphin in an aquarium is 12 feet long. A scale model of the dolphin is 3.5 inches long. What is the scale factor of the mode?
polet [3.4K]

 Assuming the life sized dolphin is 12 ft long, what we want to know is what factor do you multiply 12 ft by to get 3.5 inches so converting this to an equation gives: 12*f=3.5 solving for f gives f=3.5/12=.29166...The units on the factor are inches/foot.

        So to get the size if anything linear in the small scale you just multiply it's dimension in the full scale by f.

3 0
3 years ago
What is 119 times 31%
andrezito [222]

Answer:

61.69?

Step-by-step explanation:

Are you asking what 31% of 119 is? If so, then the answer would be 61.69.

Because (119)0.31=61.69

(To make a percent, you take a decimal out of 1, and multiply. 0.31 would be 31, because we would multiply it by 100, becuase you can only get to 100%. Then you woukd do the opposite, reverse it by dividing by 100. Which then, you would get 0.31)

Hope that helped.

4 0
4 years ago
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