Mathematics High School

-x + y = 5
x - 5y = 2 ---> x= 5y + 2
I have solved the second equation for x. What is the next step if solving this system with substitution?
A. -(5y+2) + y = 5

B. -x + y = 5 + 5y + 2

C. None of the Above

D. -x + 5y + 2 = 5

Answers

Answer 1

Answer:

A. -(5y+2) + y = 5

Step-by-step explanation:

Solving the above Equation given to us in the Question,

-x + y = 5...... Equation 1

x - 5y = 2....... Equation 2

Step 1

We make x subject of the formula in Equation 2

---> x= 5y + 2

Step 2

This would be to substitute 5y + 2 for x in Equation 1

-x + y = 5...... Equation 1

-(5y+2) + y = 5

Hence, Option A is the correct option

Related Questions

A number is equal to 3 times a smaller number. Also, the sun of the smaller number and 4 is the larger number. The
situation is graphed on the coordinate plane below, where x represents the smaller number and y represents the larger
nunber

Answers

Answer:

y=3x and y=x+4

that is the third option

Step-by-step explanation:

let the larger number be y and the smaller one be x

From the mathematical statements,

y=3x

Also

y=x+4

What category does the number negative 4 fall into 

Answers

Answer:

It falls in the integer category. The attached picture is a chart if you want to specify a number in a category.

Hope this helps :)

3=2-b solve this question please​

Answers

Answer:

b=1

Step-by-step explanation:

Subtract 2 from both sides

b=1

Answer:

Step-by-step explanation:

3 = 2 - b

B + 3 = 2

b = 2 - 3 = - 1

- 3/8 divided by 2/3

Answers

Answer: -0.5 maybe

Step-by-step explanation:

It will be  -0.0625

Hope this  is helpful to you =)

Johnny and Dustin both went bowling last weekend, but not together. Johnny went during open bowling time, paying $13 for shoe rental and $3 per hour. Dustin went on family night, when each hour was $4 and shoe rental was $3. As it turned out, they played for the same number of hours and spent the same amount. How much did each one spend? How many hours did each one bowl?

Answers

Answer:

10 hours

$43

Step-by-step explanation:

Given that:

Jonny:

Shoe rental = $13

Fee per hour = $3

Dustin :

Shoe rental = $3

Fee per hour = $4

Number of hours bowled is the same

Let number of hours bowled = x

$13 + 3x = $3 + 4x

3x - 4x = $3 - $13

-x = - 10

x = 10

Number of hours each bowled = 10

Amount spent :

Jonny:

$13 + 3x = $13 + $3(10) = $13 + $30 = $43

Dustin :

$3 + 4x = $3 + $4(10) = $3 + $40 = $43

6h+9 is greater than 51​

Answers

Answer:

h > 7

Step-by-step explanation:

6h + 9 > 51

    -9       -9

6h > 42

/6      /6

h > 7

Hope this helps!

Please solve this... will give brainliest
just solve the questions... no need to fill name etc... pls solve as quick as possible thanks... and pls solve it correctly

Answers

Picture isn’t showing up resubmit

Answer:

I don't know what the answer is the picture isn't showing

Step-by-step explanation:

put the picture please

Someone help me pls!!!!!!

Answers

Answer:B

Step-by-step explanation:

(2.0 x 10-3) (3.5 x 10)
What is the value of the expression?

Answers

Answer:

595

Step-by-step explanation:

SOLUTION STEPS

(2.0×10−3)(3.5×10)

Multiply 2 and 10 to get 20.

(20−3)×3.5×10

Subtract 3 from 20 to get 17.

17×3.5×10

Multiply 17 and 3.5 to get 59.5.

59.5×10

Multiply 59.5 and 10 to get 595.

595

Which of the following numbers is between 5 and 10 on a number line? Select two that apply.

Answers

Answer:

√38 , √44

Step-by-step explanation:

√25 = 5   and  √100 = 10

So, required numbers should be between √25 and √100

And so,  they are √38 , √44

(Edit) I was wrong nevermind.

11x + 18 = 172 not a test i need the right awnser
​

Answers

Answer:

x=14

Step-by-step explanation:

11x+18=172, subtract 17 from both sides, 11x=154, divide 11 from both sides, x=14

The Micro Devices Company earned 3,632,859,678 dollars this year. 2,459,632,852 dollars were earned last year. Which is the best estimate of how many more dollars were earned this year than last year?

Answers

Answer:

$1,173,226,826  

Step-by-step explanation:

The estimate of the increase in dollars earnings is the difference between this year's earnings and last year's earnings. In other words, the increase in earnings is the excess of current year's earnings over last year's earnings as computed below:

increase in earnings=this year's earnings-last year's earnings

this year's earnings=$3,632,859,678

last year's earnings=$2,459,632,852

increase in earnings=$3,632,859,678-$2,459,632,852

increase in earnings=$ 1,173,226,826  

A circle with area 64 cm2 has a
sector with a 45-degree
central angle.
The area of the sector is
cm2

Answers

9514 1404 393

Answer:

  8 cm²

Step-by-step explanation:

A 45° sector is (45°)/(360°) = 1/8 of the circle, so its area is ...

  (1/8)(64 cm²) = 8 cm² . . . . area of sector

Cuanto es 43x5-6 (dividido) 2=

Answers

212

I think that’s the answer

Hi again if you can help me with this question I would really appreciate it :)

Answers

i think it is
1. false
2. true
3. false

Please help .........

Answers

Answer:

Step-by-step explanation:

1. ST > MN (ST is NOT congruent to MN)

2. BA > BC (not congruent)

3. m∠L < m∠P and m∠T < m∠R

4. m∠A < m∠B and m∠C

   m∠D and m∠E > m∠F

I am not sure what the questions are yet hope it helps

I need help on this .....,,,

Answers

Answer: false

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

The y-intercept is at -7, and the slope is two (move to the right one and up two or left one and down two)

Is -17/-40 equal to 0.245

Answers

Answer:no

Step-by-step explanation:it will be 0.425

Shen and David each washed a car.
• Shen spent 5 minutes washing his car for every 2
• Each boy started washing his car at 4:00 4.
• David finished washing his car at 4:30 PM.
At what time did Shen finish washing his car?

Answers

Step-by-step explanation:

Shen time= 5 min (David time/2 minutes)

David time= 4:30-4:00= 30 minutes

Shren time=5(30/2)=5(15)= 75 minutes

Help due in 10 minutes!!

Answers

Answer:

A its like right there in the chart

Step-by-step explanation:

hope this helped

D. The graph goes up by 2.5 each time.

9
.
ABCD is a rhombus.
Find each angle.
Reason:

Plz answer ASAP, thank you

Answers

Answer:

Step-by-step explanation:

I sympathize. The question is not very clear: you don't know what A and B really are (I mean which vertex).

However it is a rhombus, and you are to assume that B follows A. So put A anywhere and make B follow it. They are supplementary which means they add to 180 degrees. All rhombi have that property.

A + B = 180

A/B = 2/1

Cross Multiply the second equation

A = 2*B

Put 2B into the first equation.

2B + B = 180         Combine the left terms

3B = 180                Divide both sides of the equation by 3

B = 180 / 3

B = 60

B = 60

A = 180 - 60 = 120

Label the two acute angles as 60 and the two obtuse angles as 120.

Acute: means less than 90

Obtuse: means more than 90

Describe and correct the error in finding the intercepts.
Example:
The intercept is not at (8, 2) because... Instead, it
should be...

Answers

Answer:

The x=8 is only for the x interecept, and the x-intercept is (8,0). You assume y to be 0 then you say it's 2, that is incorrect. x and y interecepts should not be combined. The correct x-intercept and y-intercept are (8,0) and (0,2) respectively

Identify an equation in point-slope form for the line parallel to y+-2/3x+8 that passes through (4, -5).

Answers

Step-by-step explanation:

Line parallel to the line y = -2/3 x + 8 also has the slope -2/3.

Since the line passes through (4, -5), we have (x - 4) written on the right side and (y + 5) on the left side.

Hence the equation is y + 5 = -2/3 * (x - 4). (B)

needing help if anyone knows!!!

Answers

Answer:

68 degrees

Step-by-step explanation:

180 - 112 = 68

This is all you need to do

6 to the power of 2 equal ?

Answers

Answer:

36

Step-by-step explanation:

Whenever something is to the power of 2, just think of the number multiplied twice :) Hoped this helped.

PLS AWNSER BEST AWNSER GET BRAINLIST.
I need a good grade on this final for my pc lol

Answers

Answer:

no idea

Step-by-step explanation:

Jk the answers square

HELP CORRECT AWNSER GET BRAINLIEST

Answers

Answer:

A 33 degrees

Step-by-step explanation:

[tex]x \degree = 180 \degree - (23 \degree + 124 \degree) \\ \\ x \degree = 180 \degree - 147 \degree\\ \\ x \degree = 33 \degree \\ \\ x = 33[/tex]

Answer:

A) 33

Step-by-step explanation:

the angles of a triangle always add up to 180.

124 + 23 + x = 180

combine like terms

147 + x = 180

147 + x - 147 = 180 - 147

x = 180 - 147

x = 33

delicious Bakery has a monthly budget of D dollars. Every month, it spends $3,080 on employee salaries. 1/4 of the remaining budget is spent on the ingredients. Which function can be used to find the amount, in dollars, spent on ingredients each month?​

Answers

Answer:

yellow

Step-by-step explanation:

THIS IS URGENT, PLEASE ANSWER ASAP!
In an isosceles trapezoid, how do you prove the base angles are congruent?

Answers

Answer: Well there's a geometry definition stating that the two angles are equal.

But ig i can try to make a proof.

First make a perpendicular bisector from the vertex to the bottom splitting the bottom side in half.

Now because of LL theorem, and the reflexive property, the two triangles are equal.

Now using cpctc, the two angles are also equal.

Step-by-step explanation:

Answer:

here is your answer...

hope it helps!

A concert charges $5 for a children's ticket and $11 for an adult’s ticket. One Saturday, the theater sold 1200 tickets for $10,800. How many children’ tickets and adults’ tickets were sold?

Answers

Answer:

i think 15 kid and 18 aduits

Step-by-step explanation:

Answer:

800 children’s ticket were sold and 400 adult tickets were sold

Step-by-step explanation: using elimination

variables-

amount of children’s ticket sold: C

amount of adult tickets sold: A

equations-

A+C=1200

5A+11C=10,800

solving-

(A+C=1200) -5 —> -5A-5C=-6000

5A+11C= 10,800

use elimination on those two equation and you get C=800, A=400.

to check you plug in the numbers into one of the equations, doesn’t matter which one.

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