1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
spayn [35]
3 years ago
11

An unknown number y is 20 more than an unknown number x. The number y is also x less than 2. The equations to find x and y are s

hown below:
y = x + 20
y = −x + 2

Which is a correct step to find x and y?

a) Multiply the equations to eliminate y.
b)Add the equations to eliminate x.
c) Write the points where the graphs of the equations intersect the x-axis.
d) Write the points where the graphs of the equations intersect the y-axis.
Mathematics
1 answer:
zloy xaker [14]3 years ago
8 0

Answer:

b)Add the equations to eliminate x.

Step-by-step explanation:

y= x+20

y= - x+2

Result of the addition: (-x cancels x)

2y = 22

y =11

11=x +20            -9 = x

11=9+2

11 = -9 +20

You might be interested in
How tall is the flagpole?<br> X<br> 6 ft<br> 15 ft<br> 4.5 ft
sweet-ann [11.9K]

Answer:

x = 20 ft

Step-by-step explanation:

We can use similar triangles and ratios to solve

4.5 ft         6 ft

--------- = ---------------

15 ft             x ft

Using cross products

4.5x = 15*6

4.5x =90

Divide each side by 4.5

4.5x/4.5 = 90/4.5

x =20

3 0
3 years ago
Fill in the y-value for each box in the t-chart using the equation below !?
riadik2000 [5.3K]
3,4,7 just plug the x into the equation
3 0
2 years ago
Help with 19??????????
Luba_88 [7]

Adding Integers

If the numbers that you are adding have the same sign, then add the numbers and keep the sign.

Example:

-5 + (-6) = -11

Adding Numbers with Different Signs

If the numbers that you are adding have different (opposite) signs, then SUBTRACT the numbers and take the sign of the number with the largest absolute value.

Examples:

-6 + 5= -1

12 + (-4) = 8

Subtracting Integers

When subtracting integers, I use one main rule and that is to rewrite the subtracting problem as an addition problem. Then use the addition rules.

When you subtract, you are really adding the opposite, so I use theKeep-Change-Change rule.

The Keep-Change-Change rule means:

Keep the first number the same.

Change the minus sign to a plus sign.

Change the sign of the second number to its opposite.

Example:

12 - (-5) =

12 + 5 = 17

Multiplying and Dividing Integers

The great thing about multiplying and dividing integers is that there is two rules and they apply to both multiplication and division!

Again, you must analyze the signs of the numbers that you are multiplying or dividing.

The rules are:

If the signs are the same, then the answer is positive.

If the signs are different, then then answer is negative.

6 0
3 years ago
Match the following equation to the correct situation.
IRISSAK [1]

Answer:

option D is right

...............

3 0
3 years ago
Alexi’s restaurant bill is $58, and he wants to leave a 20 percent tip. Which expression represents the total amount that Alexi
IRISSAK [1]

Answer:

58 dollars (0.20) + 58 dollars

Step-by-step explanation:

58 dollars (0.20) + 58 dollars

4 0
3 years ago
Read 2 more answers
Other questions:
  • A polling organization contacts 1835 undergraduates who attend a university and live in the United States and asks whether or no
    13·1 answer
  • In the figure below, \overline{AD} AD start overline, A, D, end overline and \overline{BE} BE start overline, B, E, end overline
    15·1 answer
  • Number 17 please and thank you . I don’t understand it . Do you plug in each 10-50 as T into your calculator?
    15·1 answer
  • What is the reason for 2 and 4
    12·1 answer
  • Help me please please help please
    12·2 answers
  • PLEASE HELP!! Whoever is correct I will award Brainliest!! I need the answer to all questions for Brainliest. What is the median
    12·2 answers
  • Jack is fishing on a pier that is 2 feet above the water. When he casts his rod, the hook
    15·2 answers
  • You use 4 boxes of rice to serve 13 people. If you want to serve 39 people, what should you do?
    10·2 answers
  • Can someone plz help me with the other half of this ? The green question mark part.
    8·2 answers
  • Free thanks and crown thing.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!