Solve by
substitution or elimination

2x-y=10

4x-2y=21

Answers

Answer 1
no solution because i’m right

Related Questions

Mr Frasier worked her 40 regular hours last week, plus 4 overtime hours at the double time rate. Her gross pay was $734.40. What was her hourly rate?

Answers

Answer:

15.30 per hour

Step-by-step explanation:

The hourly rate for Mr Frasier will be $15.30.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Mr Frasier worked her 40 regular hours last week, plus 4 overtime hours at the double-time rate. Her gross pay was $734.40.

The hourly rate will be calculated as:-

Rate = 40 + 2 x 4 = 734.40

Rate = 40 + 8 = 734.40

Rate = 734.40 / 48

Rate = $15.3

The hourly rate is $15.3.

To know more about an expression follow

https://brainly.com/question/26165221

#SPJ2

Solve and graph x - 2 > -5 and x - 2 < 4 on a number line

Answers

Answer:

(-3, 6)

Step-by-step explanation:

Solve x - 2 > -5 for x as follows:  Add 2 to both sides, obtaining x > -3.  To graph this, find -3 on the number line and put a circle there.  Draw a solid line from this circle towards the right.

Solve x - 2 < 4 for x as follows:  Add 2 to both sidees, obtaining x < 6.  Find 6 on the number line and put a circle there.  Draw a solid line from this circle to the left.

Notice that the two lines you've drawn overlap on the interval (-3, 6).  This is the desired solution set.

4x-16=9-x solve for x

Answers

Answer:

5

Step-by-step explanation:

4x-16=9-x

4x+x=16+9

5x=25

5x/5=25/5

x=5

which inequality is true when the value of w is 13 w-<5 -w-3>-5 -w-3>5 w->5

Answers

w > -5 shows that w is greater than -5 and since 13 is greater than -5, hence the inequality expression w > -5 is true

We need to get the equation that is true for w to be 13. This means that the required inequality expression should be w must be a positive integer.

For the Expression -w - 3 > -5

-w > -5 + 3

-w > -2

w < 2

Since w is less than 2, hence the inequality is wrong

For the inequality

-w - 3 > 5

-w > 5 + 8

-w > 13

w < -13

Since w < -13, hence the inequality is wrong

For the inequality w > -5

It shows that w is greater than -5 and since 13 is greater than -5, hence the inequality expression w > -5 is true

Learn more here: https://brainly.com/question/15816805

If ABC - DEF, C = 5cm, b = 7cm, a = 8cm, and e = 14cm,

determine the lengths of sides d and f.

Answers

Answer:

Step-by-step explanation:

Chi saccio

-100 squared equals ___ + ____

Answers

Answer:

10+ i

Step-by-step explanation:

Answer:

-10

Step-by-step explanation:

-11+1=-10

what is 100mm to inches with work?

Answers

Answer:

3.937 inches

Step-by-step explanation:

I assume you are doing dimensional analysis. Work is attached.

please help! i'll mark brainliest

Consider the linear function f(x) = 3x-1. Find f(0), f(1), f(2)

Answers

Answer:

f(0) = -1, f(1) = 2, f(2) = 5.

Step-by-step explanation:

f(0) = 3(0) - 1 = -1

f(1) = 3(1) - 1 = 2

f(2) = 3(2) - 1 = 5

The value of the function f(x) = 3x + 1 at x = 0, 1, and 2 will be 1, 4, and 7, respectively.

What is a function?

A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.

The function is given below.

f(x) = 3x + 1

The value of the function at x = 0 will be

f(0) = 3(0) + 1

f(0) = 0 + 1

f(0) = 1

The value of the function at x = 1 will be

f(1) = 3(1) + 1

f(1) = 3 + 1

f(1) = 4

The value of the function at x = 2 will be

f(2) = 3(2) + 1

f(2) = 6 + 1

f(2) = 7

The value of the function f(x) = 3x + 1 at x = 0, 1, and 2 will be 1, 4, and 7, respectively.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ2

write the equation for the graph below

Answers

Answer:

the funtion is y =-x+1, while - infinite < x <=3 also the y=x-5 while 3<= x < infinite

Maya is taking trip to the mall to purchase
Some new Clothes. She can afford spending up
to $150. If she wants to buy a pair of
shoes that cost $49.50 and variety of Shirts
That cost $ 22.99 each, how many shirts can
Maya afford ?

Answers

Answer:

4 shirts

Step-by-step explanation: 150 - 49.5 = 100.5 / 22.99 = 4.3

Answer:

4shirt thats is correct i research it

how do you factor this equation? 5x^2-36x-81

Answers

ANSWER: THERE ARE TWO SOLUTIONS TO GET THE ANSWER

THE FIRST ONE IS FACTOR BY GROUPING AND THE SECOND SOLUTION IS SOLVING USING THE QUADRATIC FORMULA.

STEP BY STEP SOLUTION:

FACTOR BY GROUPING

(5x +9) (x -9)

WRITE IN STANDARD FORM

5x^2 - 36x -81

SOLVE USING THE QUADRATIC FORMULA

Solve the equation for x by finding a,b, and c of the quadratic then applying the quadratic formula.

X= 9, -9/5

I HOPE IT HELP YOU :)

12 out of 20 students prefer having a study hall. What percentage of students prefer study hall?

Answers

12 out of 20
Your answer is the question

Answer:

2.4 %

Step-by-step explanation:

magic *poof*

The state fair is a popular field trip destination. This year the senior class at High School A and
the senior class at High School B both planned trips there. The senior class at High School A
rented and filled 1 van and 3 buses with 80 students. High School B rented and filled 14 vans
and 1 bus with 218 students. Each van and each bus carried the same number of students. Find
the number of students in each van and in each bus.

Answers

Answer:

each bus carries 22 students

each van carries 14 students

Step-by-step explanation:

1v+3b=80

14v+b=218

eliminate b by multiplying the bottom equation by 3.

(42v+3b=654)-(1v+3b=80)=

41v=574

divide both sides by 41

v=14 (each van carries 14 students)

substitute the value of v into either of the og equations

1(14)-14+3b=80-14

3b=66

divide both sides by 3

b=22 (each  bus carries 22 students)

plssss help me i cant do this stuff

Answers

Answer:  See explanation:  10, 1, 1, -7

Step-by-step explanation:

I'll assume you are working with Excel.  The Product function multiplies all the cells given in the specified range.  Here, those are cells A2 through A5.  As presnted, this would be [10*5*0*(-7)] = 0, which is the value of cell B2.  If we want cell B2 to be -70, we must change one or more of the numbers in cells A2 to A5.

Initial:     10, 5, 0, -7   B2=0

Change:  10, 1,  1, -7   B2 = -70

Other combinations are possible.

Kadeem wants to ride his bicycle 52 miles this week. He has already ridden 16 miles. If he rides for 5 more days, write and solve an equation which can be used to determine xx, the average number of miles he would have to ride each day to meet his goal.
How to solve this for an equation.

Answers

The average number of miles that would be ridden to meet his goal is 7.2 miles.

Total distance = 52 miles

Distance ridden = 16 miles

Number of days left = 5 days

Let the number of miles that'll be ridden for each day be represented by x.

Therefore, the equation to solve the question will be:

5(x) + 16 = 52

5x + 16 = 52

5x = 52 - 16

5x = 36

x = 36/5

x = 7.2

Therefore, he'll have to ride 7.2 miles per day.

Read related link on:

https://brainly.com/question/25216701

what does it mean for statements to be logically equivalent?

Answers

Answer:

Two statement forms are called logically equivalent if they have identical truth values for each possible substitution for their statement variables.

Step-by-step explanation:

hope this helps <333

brainliest plz :) ?

A 3. On a recent shopping trip, you see a sale advertising 4 pairs of socks and 3 pairs of shoes for $90. Write an equation using to represent the cost of socks and y to represent the cost of shoes.
A)40x + 30y - 90
B)30x + 40y = 90
C)3x + 4y - 90
D)4x + 3y = 90

Answers

The correct answer is D) 4x + 3y = 90.

x = pairs of socks
y = pairs of shoes
90 = total cost of the sum of socks and shoes

Combining these with the given quantities for each variable:

4x + 3y = 90

solve this equation using completing the square method 2x^2 -x -8 =0​

Answers

Answer:

¼ + ¼ √65

Step-by-step explanation:

x= ¼ + ¼ √65

or

¼ + -¼ √65

Please help.. I don’t understand..

Answers

Answer:

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

the coefficient of the expression is +2 .

hope this helps.

will give correct answer brainliest​

Answers

Answer:

(-1,3) > (3,-2)

(2,-1) > (6,-6)

(5,-3) > (-1,-8)

In a newspaper, it was reported that yearly robberies in Springfield were up 30% to 260 in 2012 from 2011. How many robberies were there in Springfield in 2011?

Answers

Answer:

182

Step-by-step explanation:

260 x 30% = 78

260 - 78 = 182

5 yards 2 feet times 2

Answers

Answer:

11 yards 1 feet or 34 feet

Step-by-step explanation:

1st method:

(5 yards × 2) + (2 feet × 2)10 yards + 4 feet11 yards and 1 feet

2nd method:

5 yards = 15 feet(15 feet × 2) + (2 feet × 2)30 feet + 4 feet34 feet

1. Solve: 67 x 109
670,000
67,000
6,700
6,700,000

Answers

Answer:

7303

Step-by-step explanation:

I just calculated 67x109 and it gave me 7303

Write the equation of the line in slope intercept form the line is parallel to y+x=3 and passes through the point(-12,0)

Answers

Answer:

y= -x -12

Step-by-step explanation:

change y+x=3 to the form y=-x +3

gradient= -1

*Parallel lines have the same gradient

y-coordinate = gradient (x - x-coordinate)

y-0= -1 (x- (-12))

y=-x-12

What are some advantages and disadvantages of using this repayment plan?

Answers

The disadvantage of using repayment plans are:

You pay much more in interest payments than you would otherwise.

You spend more of your life making loan payments.

You may end up with a higher interest rate than that of your original loan.

The advantage of using repayment plan are :

You can pay a little more each month and pay off the loan sooner.

It is the automatic repayment option for most loans

What property justifies the statement? (7x3)+4=4+(7x3)?

Answers

associative property

PLEASE HELP WILL MARK BRAINLIEST
Solve the expression

Answers

Answer:

17

Step-by-step explanation:

the step by step process is on the pics

Help please due today

Answers

Answer:

Equation "a" matches with the bottom table

Equation "b" matches with the middle table

Equation "c" matches with the top table

A pack of 16 markers cost $3.52. How much does each marker cost?

Answers

Answer:

To find one marker

$3.52 / 16

=0.22 cents

Each marker cost 0.22 :

3.52 ÷ 16 = 0.22

HELP
9 •8 +16 / 4
Rewrite the expression so that addition is performed first.
9 •8 +16 / 4
Rewrite the expression so that division is performed first.

Answers

This might be the answer but I no sure
Other Questions
How do Jackson's and Johnson's experiences pursuing aneducation contribute to readers' understanding of the effects ofdiscrimination? Word search Pls help me out What is the solution to (x 5)(2x + 1)(x 7) > 0?BRAINLIESTTT!!!! Find the sum of the following measurements: reported correctly. 5.1 x 105 m + 5.22 x 105 m Convert 0.000123 into scientific notation with the same number of sig figs. (Your answer should be in the format M x 10N U) (M is everything on the left. N is your exponent including a negative sign (if applicable) in front with no space between negative sign and exponent's number) (Examples: 2.5678 x 10-2 m, 2.5 x 105 m2) (you would type m2 for m2) compare -3 and 9. Which of the following is trueA. -3 < 9 and -3 < 9 B. -3 = 9 and -3 < 9C. -3 > 9 and -3 < 9D. -3 > 9 and -3 > 9 "I'm a fishing wizard" What type of figurative language is being used?What does it mean? whats 1+1 please explain. what episode do the kardashians impersonate each other? MIXED EXERCISES1. I eat an orange each day_________________________________________________2. He usually reads 2 newspapers a day_________________________________________________3. I will invite Lan to my birthday party_________________________________________________4. I see John in front of the theatre_______________________________________________5. Tom wrote this report yesterday._________________________________________________6. The weather has turned all the leaves yellow._________________________________________________7. People play football all over the world._________________________________________________8. My sister is writing that note in her notebook._________________________________________________9. A machine could do this much more easily.________________________________________________10. Tom was writing 2 poems._________________________________________________11. She often takes her dog for a walk._________________________________________________12. This terrorist has kept 3 hostages for a week._________________________________________________13. He hasn`t seen you for years._________________________________________________14. The examiner will read the passage 3 times._________________________ Safety engineers estimate that an elevator can hold 20 persons of 75kg average mass. The elevator itself has a mass of 500kg. Tensile strength test how the cable supporting the elevator can tolerate a maximum force of 2.96X10^4N. What is the greatest acceleration that the elevators motor can produce without breaking the cable? (show work) Danielle bought a silver coat rack online it cost $653.76 +7% shipping and handling what was the total costround your answer to the nearest cent What is the area of my lawn if it measures 6m x 5.2m? Which equation represents the following graph? find the values of p and q such that 4x^2+12=4(x-p)^2+q!!!!! s it true?Help me please based on evidence from the story "a fateful journey," which statement best describes maryanas attitude about the long trip from russia? Cual es el rol de la introduccion de el cuento politico social y cultural Which of the following best explains the creation of the National Aeronautics and Space Act, creating the National Aeronautics and Space Administration (NASA)? aThe Soviet Union launched Sputnik into orbit. bTo be able to deploy weapons from space to specified targets cThe Kennedy Assassination dTo place satellites in place to monitor Cold War progress by the communists Look at the following situation and write a short email requesting help.You bought 2 cartridges for your printer online, but when they arrive you notice that the best before date on them has already passed. Write and ask for replacements to be sent 8.5x-2(2x+8) Pls give steps and I need it in expanded from