How would you solve a linear equation with X and Y on the same side

Answer:

He actually paid a sum of $201.25

Step-by-step explanation:

We simply add the vat value to the cost of the machine

Mathematically, that’s (

175 + 15% of 175

= 175 + (15/100 * 175)

= 175 + 26.25

= $201.25

Answer:

14

Step-by-step explanation:

20 times four is 80 so we already have 12 chaperones because there are 3 chaperones for every 20 students.

20 divided by 3 is 6.6

We cannot have .6 of a chaperone so we round up to 7

And since 7 can only go into 20 two times

That means there are two more chaperones

2+12 is 14

There are 14 chaperones for the 92 students

(Hope this helps and hope im right)

Answer:

80(students)

12(chaperons)

Step-by-step explanation:

since total of 92 people in the trip including student and chaperon,add groups of 23 to become 92 or use this equation:

(20+3)×y=92

23y=92

y=92/23

y=4

therefore,

20×4=80(students)

3×4=12(chaperons)

Answer:

1

Step-by-step explanation:

Anything to the power of zero is = 1

Answer: the answer is 1

Step-by-step explanation:

Answer:

[tex]\displaystyle x= 1\pm \sqrt{5}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

x² - 2x - 4 = 0

Step 2: Identify Variables

a = 1

b = -2

c = -4

Step 3: Solve for x

Answer:

yes

Step-by-step explanation:

Answer:

A,C,E

Step-by-step explanation:

Just took teh Semester Exam for Math, got the answer correct

Sry im 2 days late lol

Answer:

ITS A,C,E

Step-by-step explanation:

just did a exam lol

Answer:

how does this question make any sense

4/3s is 1 and 1/3

figure out how many 3/5ths go into that

Step-by-step explanation:

Answer:

This dont make sense

Step-by-step explanation:

Answer:1) 14/5 isnt right, it would be more miles in less time. 2) [tex]\frac{5}{14}[/tex] Is the correct way. 3) 9 hours, 20 mins

Step-by-step explanation:

The proportion Jamie should set up is 14/5=25/x  and 9 hours will it take Jamie to walk 25 miles

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.

Given that In 5 hours, Jamie walked 14 miles.

Jamie is trying to figure out how many hours it would take to walk 25 miles.

She set up the proportion 14/5=x/25.

The error Jamie make in setting up her proportion is in LHS taken as miles per hours but in RHS the set up is hours by miles.

In both sides same set up should be maintained.

14/5=25/x is the proportion she should have used

14/5=25/x

Apply cross multiplication

14x=25(5)

14x=125

x=125/14

x=8.92=9

Hence, the proportion Jamie should set up is 14/5=25/x  and 9 hours will it take Jamie to walk 25 miles

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Answer:

if you are trying to say 40 percent, its 127

Answer:

Step-by-step explanation:

50.8/40=1.27

40 *1.27=50.8 if that is not your question just tell me

Answer:

A. corresponding

Step-by-step explanation:

Corresponding angles are angles that lie on top of two parallel lines.

Alternate interior angles are angles that lie on two sides of parallel lines and are mostly located with one angle up and one angle down.

Same side interior angles are angles within two parallel lines.

Answer:

corresponding angles

Step-by-step explanation:

∠ 2 and ∠ 6 are corresponding angles because each is in the same position ( upper right- hand corner ) in its group of 4 angles.

Answer:

True

Step-by-step explanation:

Answer:

17 hours

Step-by-step explanation:

216/12 = $18 per hour

306/18 = 17 hours.

Hope this helps! :)

Answer:

Is 17 hours the correct

Answer:

9/16 10/16 11/16 12/16 13/16

Step-by-step explanation:

Answer:

Step-by-step explanation:

She does have enough

Answer:

36

Step-by-step explanation:

since x=5, you multiply 8x5 to get 40. then, subtract four.

Answer:

I would say not a function but im not 100% sure, i would go with not a function. Tell me if im wrong.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

-5 i s greater than -2.

Nope that aint true

-2 is greater than -5 is correct since -2 is closer to the postivie numbers and zero.

-5 is farther so it is less than -2.

Answer:

12 days.

Step-by-step explanation:

She would have enough food to feed her pet ferret for 12 days, at a cup a day, before she would need to buy more.

Hope this helps!, If so please mark the brainliest and peace and love!!!!

Answer:

I'm sorry if I'm not helpful but I think it is 70 degrees

Step-by-step explanation:

Answer:

Step-by-step explanation:

a. Fill in the equation for the cost of Mrs. Ortiz's purchase. Let x represent the cost of a pencil and y represent the cost of a ruler.

__$55__ = __50__ x + __30_ y

b. Fill in the equation for the cost of Mr. Donahue's purchase. Let x represent the cost of a pencil and y represent the cost of a ruler.

__$45__ = __30__ x + __30__ y

c. Circle the best method for solving the system:

Elimination

d. Solve the system using the method you chose.

  55 =50x+30y

  -1(45) =(30x+30y)-1     =     -45=-30x-30y

    55 =50x+30y

+  -45=-30x-30y

   10=20x

(1/20)10=20x(1/20)

0.50=x

3(55) =(50x+30y )3      =     165=150x+90y

-5(45) =(30x+30y)-5     =   -225=-150x-150y

     165 =150x+90y

+  -225=-150x-150y

           -60=-60y

(1/-60)-60=-60y(1/-60)

             1=y

A mechanical pencil costs _$0.50__ and a ruler costs __$1.00__.

e. Check your answer:

$55=50x+30y                                $45=30x+30y

$55=50(0.5)+30(1)                         $45=30(0.5)+30(1)

$55=25+30                                    $45=15+30

$55=$55                                         $45=$45

A mechanical pencil costs $0.50  and a ruler costs $1.00.

The current answer as follows:

a. Fill in the blanks to calculate Mrs. Ortiz's purchase price. Let x denote the price of a pencil and y the price of a ruler.

$55 = 50x + 30y

b.Fill in the blanks with the cost of Mr. Donahue's purchase. Let x represent the cost of a pencil and y represent the cost of a ruler.

$45 = 30x + 30y

c. Circle the best method for solving the system:

Elimination

d. Solve the system using the method you chose.

55 = 50x + 30y - 1(45) = (30x + 30y) - 1 = -45 = -30x - 30y

  55 = 50x + 30y + -45 = -30x - 30y

 10 = 20x

(1/20)10 = 20x (1/20)

0.50 = x

3(55) = (50x + 30y )3 = 165 = 150x + 90y

-5 (45) = (30x + 30y) - 5  = -225 = -150x - 150y

   165 = 150x + 90y + -225 = -150x - 150y

         -60 = -60y

(1/-60) -60 = -60y (1/-60)

           1 = y

A mechanical pencil costs $0.50  and a ruler costs $1.00.

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Answer:

Step-by-step explanation:

1. ✔️Using Pythagorean Theorem, thus the missing length, x, would be:

x² = 19² - 17² = 72

x = √72

x = 8.5 (nearest tenth)

✔️Area = ½*b*h

b = 17

h = 8.5

Area = ½*17*8.5 = 72.25 units²

✔️Perimeter = 19 + 17 + 8.5 = 44.5 units

2. ✔️Using Pythagorean Theorem, thus the missing length, x, would be:

x² = 5² + 13² = 194

x = √194

x = 13.9 (nearest tenth)

✔️Area = ½*b*h

b = 13

h = 5

Area = ½*13*5 = 32.5 units²

✔️Perimeter = 13 + 5 + 13.9 = 31.9 unit

3. ✔️Using Pythagorean Theorem, thus the missing length, x, would be:

x² = 20² - 10² = 300

x = √300

x = 17.3 (nearest tenth)

✔️Area = ½*b*h

b = 17.3

h = 10

Area = ½*17.3*10 = 86.5 units²

✔️Perimeter = 17.3 + 10 + 20 = 47.3 unit

4. ✔️Using Pythagorean Theorem, thus the missing length, x, would be:

x² = 5² + 14² = 221

x = √221

x = 14.9 (nearest tenth)

✔️Area = ½*b*h

b = 14

h = 5

Area = ½*14*5 = 35 units²

✔️Perimeter = 14.9 + 14 + 5 = 33.9 unit

Answer:

Equation that can be used = [tex]\frac{4(88)+2x}{6} = 90[/tex]

Step-by-step explanation:

Given that:

Amir's average on four tests = 88

Let,

x be the score on one test

For two tests = 2x

Sum of all scores = Average of four tests + Score of two tests

Sum of all scores = 4(88) + 2x

Total number of tests = 6

Overall average needed = 90

Now,

[tex]Average = \frac{Sum\ of\ quantities}{Number\ of\ quantities}\\90 = \frac{4(88)+2x}{6}\\\\\frac{4(88)+2x}{6} = 90[/tex]

Hence,

Equation that can be used = [tex]\frac{4(88)+2x}{6} = 90[/tex]

Answer:

  [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}3\\2\\\end{array}\right][/tex]

Solution of the given system of equations

 x = 3 and  y= 2

Step-by-step explanation:

Step(i):-

Given system of equations are

                                      4x - y =  10 ...(i)

                                     8x +5y = 34...(ii)

The matrix form

                          A X = B

[tex]\left[\begin{array}{ccc}4&-1\\8&5\\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}10\\34\\\end{array}\right][/tex]

Step(ii):-

By using matrix inversion method

[tex]A^{-1} = \frac{1}{|A|} adj A[/tex]

|A| = ad-b c = 4(5) - 8(-1) = 20+8 = 28

Given matrix

            [tex]A = \left[\begin{array}{ccc}4&-1\\8&5\\\end{array}\right][/tex]

[tex]AdjA = \left[\begin{array}{ccc}d&-b\\-c&a\\\end{array}\right][/tex]

[tex]A djA = \left[\begin{array}{ccc}5&1\\-8&4\\\end{array}\right][/tex]

Inverse of the matrix

                           [tex]A^{-1} = \frac{1}{|A|} adj A[/tex]

                          [tex]A^{-1} = \frac{1}{|A|} A djA =\frac{1}{28} \left[\begin{array}{ccc}5&1\\-8&4\\\end{array}\right][/tex]

Step(iii):-

The solution of the given system of equations by using matrix inversion method

                     X = A⁻¹ B

                    [tex]X = A^{-1}B =\frac{1}{28} \left[\begin{array}{ccc}5&1\\-8&4\\\end{array}\right]\left[\begin{array}{ccc}10\\34\\\end{array}\right][/tex]

                   [tex]X = A^{-1}B =\frac{1}{28} \left[\begin{array}{ccc}5X10+1X34\\-8X10+4X34\\\end{array}\right][/tex]

                 [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right] =\frac{1}{28} \left[\begin{array}{ccc}84\\56\\\end{array}\right][/tex]

                 [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}3\\2\\\end{array}\right][/tex]

Final answer:-

Solution of the given system   x = 3 and  y= 2

Answer:

Dileah is correct

Step-by-step explanation:

6 is greater than 5 but yet its 6/5 and makes it an improper fraction. Its an enlargement

Answer:

Delilah

Step-by-step explanation:

It is an enlargement since the x and y values was multiplied by a number greater than 1.

Answer:

12. P(4) = 1/6

13. P(odd) = 3/6 = 1/2

Step-by-step explanation:

hope this helps, pls mark brainliest :D

Answer:

25 boys, 15 girls

Step-by-step explanation:

You can setup 2 equations where b is the number of boys and g is the number of girls to get [tex]b+g=40[/tex] and [tex]b-8=g+2[/tex]. Simplifying the second equation gets you [tex]b-10=g[/tex] insert [tex]b-10[/tex] for g in the first equation to get [tex]2b-10=40[/tex]. Simplify this equation to get [tex]b=25[/tex]. To find the number of girls, substitute 25 for b in the first equation to get [tex]g=15[/tex]