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elena-s [515]
3 years ago
9

Best Method using system of equations x=4y+8 2x-8y=-3

Mathematics
2 answers:
Mkey [24]3 years ago
8 0
In this case, since one equation is in the form of x=, substitution would be best for this problem.  Simply plug in 4y + 8 in place of x in the second equation, solve for y, then plug that value into the first equation to find x.
bagirrra123 [75]3 years ago
8 0
X=4y+8
2x-8y=-3

lets use the substitution method
2x-8y=-3
2(4y+8)-8y=-3
8y+16-8y=-3
16 is not equal to -3 so lets try elimination

x=4y+8
2x-8y=-3

xhange the 1st equation to standard for 
x-4y=8
2x-8y=-3

multiply the 1st equation to remove x
2x-8y=8
2x-8y=-3
0 is not equal to 11 

therefore we cannot solve using both equations so te question's answer is undefined
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Given m
Lilit [14]

Answer:

x = 41°, y = 139°

Step-by-step explanation:

The given parameters are;

Line <em>m</em> is parallel to line <em>n</em> and lines <em>m</em> and <em>n</em> have a common transversal

The corresponding angles formed by the common transversal to the two parallel lines are 41° on line <em>m</em> and <em>x°</em> on line <em>n</em>

Therefore, x° = 41° by corresponding angles formed between on two parallel lines by a common transversal are equal

x° and y° are linear pair angles and they are, supplementary

∴ x° + y° = 180°

∴ x° + y° = 41° + y° = 180°

y° = 180° - 41° = 139°

y° = 139°.

3 0
3 years ago
Can someone help me find the missing height?
KiRa [710]
<h2>Solution :</h2>

Area = 30 units²

Base = 5 units

Height = ? = Let it be -> x

Area (formula) = base×height = x×5 units= 30 units²

= x= 30/5 = 6 units

<h2>Thus , the height = 6 units</h2>
3 0
3 years ago
Plzzz help i will give brainliest if i can
Alla [95]

Answers: choice C and choice E

Plugging x = 3 and y = -1 into both equations of choice C lead to a true result (the same number on both sides). This is why the system of equations listed in choice C is one possible answer. Choice E is a similar story.

If your teacher didn't mean to make this a "select all that apply" type of problem, then it's likely your teacher may have made a typo.

3 0
2 years ago
2. Write a recursive formula for the sequence 5, 18, 31, 44, 57, ... Then find the next term.
ludmilkaskok [199]

Answer: a6=70

Step-by-step explanation:

we know that

In the Arithmetic Sequence the formula is:

an= a1 + d(n−1)

where

a1 is the first term

d is the common difference

n is the number of terms

in this problem

a1=5

a2=18

a3=31

a4=44

a5=57

so

d=a2-a1 or a3-a2 or a4-a3 or a5-a4

d=57-44----> 13

find a6

a6= a1 + d(n−1)

n=6

d=13

a1=5

a6=5+13*(6-1)----> a6=5+13*5----> a6=70

8 0
2 years ago
Read 2 more answers
The sum of two consecutive odd integers is 316. Find the two odd integers.
Tcecarenko [31]
1, 3, 5, 7, 9 ......
notice, there are consecutive odd integers, every other number
skip one, another, skip one, another and so on

so, from 1 to 3, is 1 + 2 =3
5 is 3 +2
7 is 5+2
and so on

let us pick an odd integer, hmmm say "a"
to find the next odd one, it'd be "a + 2" of course :)

we know their sum is 316
so \bf a+(a+2)=316\impliedby \textit{solve for "a"}

once you found "a", the next one is, well, "a + 2" :)
5 0
3 years ago
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