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telo118 [61]
2 years ago
10

6 times a larger number (so 6y) is equal (=) to the sum of a snaller number and 18 (x+18)

Mathematics
2 answers:
yan [13]2 years ago
6 0
6y = x + 18
2y = x + 6         subtract :-

4y = 12
y = 3

substitute y=3 into second equation:-
6 = x + 6
so x =  0

solution is x=0.y=3
joja [24]2 years ago
6 0
I'm not sure what techniques you've been looking at to solve a system like this, but substitution would be a good one to use.  Solve one of the equations for one of the variables (pick an easy one).  How about using the first equation and solving for x:
6y = x + 18
x = 6y - 18
Now, plug in the expression for x into the other equation:
2y - (6y - 18) = 6
Solve that for y, then use the answer to find x.

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What is the length of the side of a regular octagon if a diagonal is 20 meters long?
Margarita [4]

Answer:

10

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP! What is the area of triangle BCD in exact form? 35 points!
vampirchik [111]
This is a 30-60-90 triangle. The short leg is given to us as 5 

The long leg is equal to sqrt(3) times the short leg

long leg = sqrt(3)*(short leg)
long leg = sqrt(3)*5
long leg = 5*sqrt(3)

The base is 5. The height is 5*sqrt(3)
b = 5
h = 5*sqrt(3)

Use this to find the area
A = b*h/2
A = 5*5*sqrt(3)/2
A = 25*sqrt(3)/2
which is the exact area in terms of a radical

You can write it out as \frac{25\sqrt{3}}{2}
5 0
3 years ago
Can someone show me how to do this I don’t just want the answer I need to know exactly how I can get the answer for my next prob
Lady bird [3.3K]
You have to place the numbers on the correct location of the number line. Let me guide you ☺

0.5 goes halfway between the 0 and 1. You will place a dot which is called a point halfway between 0 and 1.

-2.1 going to the left you will place a tiny dot that represents -2.10.

1 2/3 also known as 1.66 will be placed beteeen the 1 and 2. I think you are getting the picture now. right!

Please vote my answer brainliest. thanks!

Also on Instagram you can follow Hannahayanna for even more help and my specialty of Mentorship!
8 0
3 years ago
2. Express the given statement as an algebraic expression.<br>Sum ofa and 5 divided by 8​
bezimeni [28]

Answer:

An algebraic expression for <em>Sum of a and 5 divided by 8</em>​ is  \mathbf{\frac{a+5}{8}}

Step-by-step explanation:

We need to express the given statement as an algebraic expression.

Sum of a and 5 divided by 8​

Basically, we are given the expression in English sentence and we have to write algebraic expression.

It can be done in two steps:

Sum of a and 5 = We know that sum is denoted by + sign. So, we get (a+5)

Sum of a and 5 divided by 8​ = \frac{a+5}{8}

So, An algebraic expression for <em>Sum of a and 5 divided by 8</em>​ is  \mathbf{\frac{a+5}{8}}

7 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST
zalisa [80]

If we look at the rest of the input and output, we also realize that:

         output = input + 5

Thus if the input is 'n' then the output is 'n+5'

Hope that helps!

8 0
2 years ago
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