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Elenna [48]
3 years ago
13

The sum of two numbers is 18. Twice the first number (x) minus the second number (y) is 6. Find the two numbers

Mathematics
1 answer:
ki77a [65]3 years ago
8 0

Answer:

8 and 10

Step-by-step explanation:

Set the first number as x, the second as y

x+y=18

2x-y=6

This is an binary system of first order equations

3x=24

x=8

y=10

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Look at the picture and read the question. I think the answer is 137 degrees but I don't know how to get it. I need help lol. Th
slamgirl [31]

Answer:

That is a parallelogram so that opposite angles are equal.

10x -27  = 2x + 29

x = 7

and therefore those angles equal 43 degrees each

It is a parallelogram, so

angle V + W +X + Z = 360

we know that angle Y + angle W = 2 * 43 = 86 degrees

angle V + angle X = 360 -86 degrees

angle V + angle X = 274 degrees

angle V = 274 / 2 = 137 degrees

Step-by-step explanation:

8 0
3 years ago
Complete the table of values for y=2xsquared+x
hodyreva [135]

The solution of y= 2x^{2} +x given as:

x:   0      1       2       3

y:   0      3      10      21

<h3>What is Linear Equation?</h3>

A linear equation is an algebraic equation of the form y=mx+b. involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept.

Given function is:

y= 2x^{2} +x

For finding the solution of above expression, take value of x and solve for y.

  • If x=0

y= 2(0)+0

y=0

  • If x=1,

y= 2(1)^{2} +1= 3

  • If x=2

y=2(2)^{2} +2=10

  • If x=3

y= 2(3)^{2} +3=21

The required table is:

x:   0      1       2       3

y:   0      3      10      21

Learn more about linear equation here:

brainly.com/question/488051

#SPJ1

8 0
2 years ago
In a lake, there is a patch of llily pads. every day, the patch doubles in size. if it takes 243 days for the patch to cover the
Marta_Voda [28]

If the patch doubles in size every day, it means that yesterday it was half as large as today. So, if today (day 243) the patch is as large as the lake, yesterday (day 242) half as large, so it was as large as half the lake.

5 0
3 years ago
Will mark brainliest. only answer if you know it. random answers will be reported.
meriva

Answer:

Step-by-step explanation:

x=\sqrt{15^{2} -12^{2} }

x=9 in.

6 0
2 years ago
Read 2 more answers
If f(x)=(1/7)(7^x) what is f(3)<br> a.343<br> b.1/49<br> c.1/343<br> d.49
aksik [14]
If f(x) is f(3) then x = 3 so 7^3 is 343

then multiply that by 1/7 the answer would be 343/7 which simplifies to 49
7 0
3 years ago
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