Mathematics High School

x-y=2
y=1/2x

I know to substitute it in (first step) but I forget what comes after

Answers

Answer 1
x -(1/2x) = 2
1/2x = 2
x = 4
(4) - y = 2
y = 2

Related Questions

Meaghan and Lily are dividing 43.61 by 7. Meaghan says that the first digit of the quotient is in the ones place. Lily says it is in the tens place. Who is​ right? How do you​ know?

Answers

Answer: Meaghan is right.

Step-by-step explanation:

For a number like:

123.45

the tens place would be the "2" (second number at the left of the decimal point)

The ones place would be the "3" (first number at the left of the decimal point)

Let's suppose that Lily is correct.

Then the quotient of:

43.61/7

Will be a number with two digits in the left of the decimal point.

The smallest number that meets this condition, is the number 10.

Then let's see:

7*10 = 70

then:

70/7 = 10

and:

43.61 < 70

(70 is larger than 43.61)

then:

43.61/7 < 70/7 = 10

Then:

(43.61/7) < 10

This means that our quotient is smaller than 10, then the first digit of the quotient can not be on the tens place.

Then Meaghan is the correct one.

We also could perform the quotient to find:

43.61/7 = 6.23

So yes, Meaghan is correct.

6x+9=-12
Can someone help me with this question

Answers

Answer:

-7/2

Step-by-step explanation:

Answer:  

-7/2

Step-by-step explanation:

Hope it helps

9x-27 whats the answer

Answers

Answer:

The answer is 9(x-3).

Step-by-step explanation:

Answer:

-243

Step-by-step explanation:

LOTS OF POINTS WILL GIVE BRAINLIEST

B and D are points on a circle, centre C.
AB is the tangent to the circle at B.
ADC is a straight line.
AB=3 cm.
AD= 2 cm.
The radius of the circle is 7 cm.
Find the value of y.


Answers

It should be 6 because of the 7.

What's the solution for the system graphed below?

Answers

Answer:

Step-by-step explanation:

the intersecting pair is (-2, -3)

Please help me please

Answers

Answer:

B

Step-by-step explanation:

How many units long is CD? How do you know?

Answers

Answer:

4

Step-by-step explanation:

because i know

.Mariam went to the store to buy some apples. The price per pound of the apples is $6 per pound and she has a coupon for $2.25 off the final amount. With the coupon, how much would Mariam have to pay to buy 3 pounds of apples? Also, write an expression for the cost to buy p pounds of apples, assuming at least one pound is purchased.

Answers

Answer:

$15.75

$6p-$2.25

What are the two square roots for the number 81? *
(1) 27 and 3
(2) 9 and -9
(3) 40.5 and 2
(4) None of these

Answers

Answer:2

Step-by-step explanation:9 and -9 squared both are 81 because double negative makes a positive


Please help due tonight

Tom buys 3 burgers and 5 drinks for $34. Jane buys 2 burgers and 6 drinks for $36. How much is each burger and each drink?

Answers

Using algebra
3b+5d=34
2b+6d=36
This is a simultaneous equation
Times top equation by two and bottom by 3
6b+10d=68
6b+18d=108
Subtract bottom equation by top one
-8d=-40
d=5
substitute this into an equation
3b+25=34
-25 from both sides
3b=9
b=3
drink is $5 burger is $3

Which one is correct A. B. C. D.

Answers

I think the correct answer is D

Find the Area of the Figure. Do not type in the units.

Answers

We need the figure to solve it

CORRECT ANSWERS ONLY PLES ASAP!!!!! It costs $2 to spin the spinner shown below. If you land on an even number, you win $8. If you land on an odd number, you get nothing. What is the expected value of playing this game one time?




$8


$3


$1


$6

Answers

Step-by-step explanation:

2 is an even number so if everytime  u land on an even number u win $8 so we do this (8-2=6)

Value of playing is8

what is 16y - u + 34x when x = 2 u = 14 and y = 3​

Answers

Answer:

102

Step-by-step explanation:

48-14+68

Sally is 4 years older than Brody. Evelyn is 3 times older than Brody. If Brody's age is represented by x, create an expression that represents the total age of all three people.
A.4x+4
B. 5x
C.5x+4
D.7x

Answers

Answer:

Its C. 5x +4

Step-by-step explanation:

The expression that represents the total age of all three people is f(x) = 5x + 4.

What is a mathematical function, equation and expression?function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.

Given is that Sally who is 4 years older than Brody. Evelyn is 3 times older than Brody.

Assume that Brody's age is represented by [x]. Then, the age of Evelyn will be (3x) and the age of Sally would be (x + 4). The expression that represents the total age of all three people is -

f(x) = x + (x + 4) + 3x = 5x + 4

f(x) = 5x + 4

Therefore, the expression that represents the total age of all three people is f(x) = 5x + 4.

To solve more questions on functions, expressions and polynomials, visit the link below -

brainly.com/question/17421223

#SPJ6

Kyle ran the race in three and one hundred three thousandths seconds. Which number shows three and one hundred three thousandths in standard form.

Answers

Answer:

Ran =3,103

Seconds = 1330

Step-by-step explanation:

I got this answer hope its right hope this helps: )

Hurry!
which is the remainder when (x^5-2x^4+3x^3-2x^2+4x-6) is divided by (x+2)

Answers

6 is the correct answer

Riley has 3 hours to play outside to play before diner. She spends 3/5 of that time playing outside how long does riley play outside

Answers

riley is gone to work 3/5 so step by step quicker

Answer:1.8 hours

Step-by-step explanation:

just devide and stuff

Terry rides his bike to work. It
takes him 40 minutes to go 7
miles. What is Terry's rate per
hour?(** how many minutes in
an hour**)

Answers

Answer:

10.5 is the answer

Step-by-step explanation

[tex]\frac{40}{7}[/tex]=[tex]\frac{60}{?}[/tex]

40x1.5=60

7x1.5=10.5

Answer:

10.5

Step-by-step explanation:

Work out 4 1/7 + 1 1/2

Answers

Answer:

5 9/14

Step-by-step explanation:

Answer:

5 9/14

Step-by-step explanation:

(4+1) + ( 1/7 + 1/2)

\     /

  5        9/14

= 5 9/14

I hope this helps.

How do I figure this out?

Answers

it is 1 2 twelve I can end without 20 word my friend so deal with it

What is the slope of the line that passes through the points (-5, -7) and (4,−1)? in the simplest form

Answers

Answer:

2/3

Step-by-step explanation:

Use rise over run, (y2 - y1) / (x2 - x1)

Plug in the points, then simplify:

(y2 - y1) / (x2 - x1)

(-1 + 7) / (4 + 5)

6/9

= 2/3

So, the slope of the line is 2/3

54,675+33,548,000x+a=?

Answers

Answer:

33602675

Step-by-step explanation:

help please i need you

Answers

Answer:-10hy-4h

Step-by-step explanation:

h*-10y and h*-4

Line segmentsAB and XY are translated 2 units left and 3 units down to form line segments A'B' and X'Y'. Enter the distance, in units, between line segmentsA'B' and X'Y'.

Answers

Answer:

The answer is below

Step-by-step explanation:

The question is not complete, but I would show you how to answer it.

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, translation, reflection and dilation.

Translation is the movement of a point up, down, left or right. Translation is a rigid transformation, that is it preserves the shape and size of the figure. Types of rigid transformation are rotation, reflection, and  translation.

If the distance between Line segment AB and line segment XY is 2 units and then both line segments are  translated 2 units left and 3 units down to form line segments A'B' and X'Y'. The distance between the newly formed line segments A'B' and X'Y' would still be 2 units.

ABCD contains the points: B(2,3) C(2,1) D(5,1). If the triangle is reflected across the x-axis, what
will B be?

Answers

Answer:

(2, -3)

Step-by-step explanation:

Here is my proof

If you reflect point B across the x-axis, the y-coordinate would change from 3 to be a -3....so B will now be at (2, -3)

find the missing side length of similar polygons

Answers

Answer:

23

Step-by-step explanation:

Find the zeros of the function

Enter the solutions from least to greatest.
g(x) = (x-2)(3x + 3)

lesser x =
greater x =

Answers

Answer:

lesser: -1

Greater: 2

Step-by-step explanation:

We need to figure out what values of x make it equal to 0

because it's all being mulitplied we just need one parathenses to equal 0

so we can set them equal to 0

which means we have

x-2=0

3x+3=0

Solve for x and get

2

-1

A person invested $7,900 in an account growing at a rate allowing the money to
double every 8 years. How much money would be in the account after 5 years, to the
nearest dollar?
I need answers fast

Answers

$12,838

7900/8= 987.5
For every one year, you invest $987.5
987.5 times 5 for 5 years= 4,937.5
If you round to the nearest dollar, it would be: $4,938
The total amount of money that would be in the account is, $12,838.

iTS LEGIT EASY POINTS XD

Answers

Answer:

thanks boyz

Step-by-step explanation:

Answer:

7x+78

Step-by-step explanation:

i just know

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