Mathematics Middle School

help plz
write the expression you can substitute for x in 3x-2y=8 to solve the system below.
x= 5y - 6
3x - 2y = 8

plz put step by step how you got the answer

Answers

Answer 1
3(5y-6)-2y=8
15y-18-2y=8
13y-18=8
13y=26
y=2
That is because you have the expression you can substitute it on the system.( hope this helps)
Answer 2
1. 3(5y-6)-2y=8 b/c x=x so u can just substitute it into the equation u are trying to solve
2. 15y-18-2y=8 now do the parenthesis first
3. 13y-18=8 now combine like terms in this case subtract 15y from 2y
4. 13y=26 add 18 to both sides
5. Y=2 lastly divide both sides by 13 to get the y by it’s self to get y
But if you are also looking for x all u have to do is find the answer to x=5(2)-6 which is 4
-I hope this helped

Related Questions

Select the correct location on the number line.
Which point on the number line represents the approximate volume of a cylinder with a radius of 4 units and a height of 4 units? Use 3,14 for 11
50
100
150
200
250

Answers

Answer:

the answer should be 200!

Step-by-step explanation:

hope this helps

200 my sister needed help and the answer was 200

Help
Please answer both thanks

Answers

Answer:

question n.3 is a

Step-by-step explanation:

y=3x/2 + 4

2y= 2·3x/2 + 2·4

2y= 3x+8

2y-3x=8

Help please, im drowning in homework

Answers

Answer:

circumference: 37.7

area: 113.1

Step-by-step explanation:

Answer to the circumstances is 37.7
Area is 113.1

1+1 anyone??????????
My calculator is broken and says HEE HEE So I need help is it 11?

Answers

Answer:

21 give me brainliest please

Step-by-step explanation:

A long-distance telephone company charges $4.95 per month and $0.07 per minute for phone calls.

What is the independent variable quantity in this situation?

Answers

Y = $0.07x+$4.95

Also, is that an umbrella academy pfp?

I need help :) please and thank u if u get it right i will give u brainlist

Answers

Answer:

4 14/25

Step-by-step explanation:

4.56 = 4 56/100 = 4 14/25

[tex]4 \frac{56}{100} [/tex]

[tex]4 \frac{14}{25} [/tex]

The coordinate plane below shows triangle ABC and its translation triangle A' B' C'.

Which of these rules BEST describes this translation?

https://imgur.com/RodgjGJ

Answers

Answer:

Hm...I think it's 4 units right and 2 units down.

Step-by-step explanation:

Add. Write your answer in simplest form.

4 9/16 + 1 5/8

Answers

The answer is 6 3/16.

Step by step explanation:

4 9/16 + 1 5/8

= 4 9/16 + 1 10/16
(make sure the denominator of both number are the same: 8 times 2 is 16, so we can make the same denominator; when you times 2 with 8 make sure to also times it with 5, because it is a whole number as one)

= (4+1) 9+10/16
(plus it together)

= 5 19/16
(since this is in improper fraction, we will have to change it into mixed fraction in simplest form; it can be done by dividing 19 by 16. The answer would be 1 3/16, plus this with 5)

= 5 + 1 3/16

= 6 3/16

After taking the least common multiple of their denominator, the addition of the fraction we get [tex]6\dfrac{3}{16}[/tex] .

The given expression is,

[tex]4\dfrac{9}{16} + 1\dfrac{5}{8}[/tex]

To add this fraction,

Convert the mixed fractions into an improper fraction

Therefore,

The first fraction we can write:

[tex]4\dfrac{9}{16} = \dfrac{16 \times4 + 9}{16}\\\\= \dfrac{73}{16}[/tex]

And the second fraction we can write

[tex]1\dfrac{5}{8} = \dfrac{8 \times 1 + 5}{8}\\\\ = \dfrac{13}{8}[/tex]

Now the given expression can be written as,

[tex]\dfrac{73}{16} + \dfrac{13}{8}[/tex]

To add these fractions take LCM of the denominators,

So, the LCM of 16 and 8 is 16,

Then,

[tex]\dfrac{73}{16} + \dfrac{13}{8}[/tex] [tex]= \dfrac{73 + 13 \times 2}{16}[/tex]

[tex]= \dfrac{99}{16}[/tex]

Now Divide 51 by 16:

16 ) 99 ( 6

  -  96  

         3

Thus, the fraction,

[tex]\dfrac{99}{16} = 6\dfrac{3}{16}[/tex]

Hence the addition of the fraction,

[tex]1\dfrac{9}{16} + 1\dfrac{5}{8}[/tex] [tex]= 6\dfrac{3}{16}[/tex]

To learn more about the fraction visit:

https://brainly.com/question/5454147

#SPJ6

15 points! please help. its math

Answers

1. 1/3

2. 1/8

3. 1/6

4. 1/10

5. 3/5

6. 1/5

7. 3/4

Answer:

This is going to be a bit long,

1. 1/3

2. 1/8

3. 4/25

4. 1/10

5. 2/3

6. 1/5

7. 3/4

Hope this helps :)

Step-by-step explanation:

I'll explain one and hope you get the rest from there.

So for #6, 2 tenths you can simplify this to 2/10, then you can divide the fraction by 2 to get 1/5.

Enrique predicted his car payment to be $200 each month. His actual car payment is $225 each month. What is Enrique's percent error
PLEASE SHOW WORK

Answers

Answer:

12.5%

Step-by-step explanation:

12.5 %
100% = 200
x% = 25
100% = 200(1)
x% = 25(2)
100/x% = 200/25
x%/100% = 25/200
x = 12.5% 25 is 12.5 percent of 200

Deb earned a total of $20 by selling 10 cups of lemonade. After selling a total of 14 cups of lemonade, how much money will Deb have made in all? Assume the relationship is directly proportional.

Answers

Deb would have made $18 from selling 14 cups of lemonade. She earned $20 for selling 10 which is $2 per cup. Add $2 dollars for 4 more cups which makes $18
Deb earned 20 dollars from 10 cups of lemonade so 2$ per cup
She sells 4 more so 8 more dollars.
20+8=28
Deb made 28$ in all

Solve for Variable: 3x + 7 < 16
A. x > 3
B. x < 5
C. x > 6
D. x < 3

Answers

Answer:

D. x < 3

Step-by-step explanation:

3x + 7 < 16

To solve, we have to isolate x.

3x + 7 < 16

Subtract 7 from both sides :

3x < 9

Divide 3 from both sides :

x < 3

Now in some cases, you could say that the inequality sign would switch, but this is only when you divide by a negative sign, so keep that in mind.

Reflect quadrilateral SQRT over the y-axis. Then translate the new quadrilateral 3 units to the right. What are the coordinates of the vertices of the final image?


A. S’(-2, 3), Q’(1, 2), R’(-3, -2), T’(-3, 1)
B. S’ (0, 1), Q’(1, -5), R’(7, -4), T’(6, -1)
C. S’(8, 3), Q’(5, 2), R’(6, -2), T’(9, -1)
D. S’(5, 3), Q’(2, 2), R’(3, -2), T’(9, -1)

Answers

Answer: S(-5;3) Q(-2;2) R(-3;-2) T(-6;-1)

When reflected over the y-axis, their x values will change sign

S(5;3) Q(2;2) R(3;-2) T(6;-1)

Translate 3 units to the right, their x values will increase by 3

S(8;3) Q(5;2) R(6;-2) T(9;-1)

Step-by-step explanation:

The answer is what my friend say

Brain test! Answer the question below.

Answers

Answer:

2/6+1/4 = 4/12+3/12=7/12

Answer:

Step-by-step explanation:

2/6 + 1/4  

= 2x2/6x2 + 1x3/4x3

= 4/12  + 3/12

= 7/12

Use the table to answer the question.


City Annual Rainfall

San Francisco, CA 20"
Seattle, WA 37"
Miami, FL 55"
New York, NY 45"


About how much rainfall do San Francisco and Seattle get together?

56 inches
57 inches
57 inches
58 inches

Answers

57 inches - we want to go from the lowest placement ti the highest placement, adding. 0 + 7 is 7, so the ones place value is 7. then, we move on to the tens place value. 20 (2) plus 30 (3) is 50 (5). put it together, and you get 57.

20
+
37
———
57
Your answer would be (57 Inches)

Explanation:

20 + 37 = 57

please help me with this math work

Answers

Answer:

8/9, [tex]\sqrt{2}[/tex], 11/5, [tex]\sqrt{9}[/tex], 11/3, 5

Step-by-step explanation:

8/9=0.89

[tex]\sqrt{2}[/tex]=1.41

11/5=2.2

[tex]\sqrt{9}[/tex]=3

11/3=3.67

5=5

Answer:

hi

Step-by-step explanation:

please help I have to turn this in by the end of the night

Answers

Answer:

3 subtracted from the product of 7 and a number b

3 subtracted= -3

product of 7 and a number b= 7b

put those together:

7b-3

hope this helps, also what grade is this

Which of the following measurements, in centimeters (cm), could be the lengths of the sides of a trianglo? Select all that apply

Answers

Answer:

1

3

6

Step-by-step explanation:

the 2 sides added have to be greater than the hypotunese

1 is a right angle triangle because of the pythagorus theorem
3 is a obtuse scalene triangle
6 is a obtuse scalene triangle
it can’t be the others because the sum of two sides is always greater than the third

(please ask if you want a more detailed explanation)

When solving the equation x/5 = -4; how would you solve for x?

Answers

Answer:

you just solve normally and then add X

Step-by-step explanation:

Answer:

x= -20

Step-by-step explanation:

because x is being divided by 5, we do the opposite operation to cancel it out

×5 on both sides (isolate x)

x= -20

At each scooter's top speed, Brand A scooter goes 2 miles per hour faster than Brand B. If after traveling at its top speed for 3 hours, Brand A scooter traveled 40.2 miles, at what rate did Brand B scooter travel if it traveled the same distance as Brand A? Write an equation to determine the solution and then write an equivalent equation using only integers.

Write an equation to determine the solution.

Answers

Answer:

Step-by-step explanation:

40.2=3(x+2)

134=10x+20

134-20=10x+20-20

114=10x

11.4=x

On a standard coordinate
plane, a point is located
to the left of the
origin on the x-axis.
Select ALL coordinates
that could be the
coordinates of the point.
a
(0, -5)
b
(6, 0)
c
(-9, 0)
d
(-1, -1)
e
(-2, 0)
f
(1, 0)

Answers

I don’t know I’m just doing this for the points I’m sorry ☮️✌️
Same doing this for the pointsssssss thanks tho yahayahahyabaj

An architecture firm creates blueprints for office buildings. Last week, they produced four rectangular blueprints for four different projects.

Project A: A 20-inch by 15-inch blueprint with a scale of 1 inch to 4 feet and a projected cost of $22,000.

Project B: A 10-inch by 8-inch blueprint with a scale of 1 inch to 8 feet and a projected cost of $25,000.

Project C: A 15-inch by 12-inch blueprint with a scale of 1 inch to 6 feet and a projected cost of $27,000.

Project D: An 8-inch by 6-inch blueprint with a scale of 1 inch to 12 feet and a projected cost of $30,000.



Order the projects from greatest to least projected cost per square foot of the actual offices.

Answers

Answer:

Wow! This is hard. I will try i answer it but for now other people will have ze chance

Step-by-step explanation:

Ew. lol

D, B, C, A

If you have to show your work, LMK

whats -1.8 as a fraction?

Answers

Answer:

-18/10

Step-by-step explanation:

Please mark me BRAINLIEST

Answer:

-1.8 = –9/5 = –1 4/5

Step-by-step explanation:

4 pounds of tomatoes cost $8. How many pounds of tomatoes can you get with
$14?

Answers

Answer:

7 pounds

Step-by-step explanation:

8 divided by 4 is 2 so $2 per pound

14 divided by 2 is 7 so therefore it would be 7 pounds

I had the wrong answer before sry haha

Plz help! I need ASAP thank you!

Answers

That is a good point in the answer above!
I think the answer is D

Which expression is equal to the power 0.3⁴

Answers

Answer:

What expression can you add the expressions in the comment so I can figure it out :)

Step-by-step explanation:

Help!! Use #8-10 to answer #11

Answers

Answer:

-2

Step-by-step explanation:

Help me please anybody

Answers

Answer:

C

Step-by-step explanation:

The correct answer is c

Can someone help me with this

Answers

Answer:

i wanna say C

im not sure

EXPERT HELP I'LL GIVE BRAINLIEST:

Answers

Answer:

990, C

Step-by-step explanation:

The formula for the surface area of the bottom cushion is

A = 2wl + 2lh + 2hw (w is width, l is length, h is height)

w = 18, l = 21, h = 3

A = 2(18)(21) + 2(21)(3) + 2(3)(18)

A = 2(378) + 2(63) + 2(54)

A = 756 + 126 + 108

A = 990 (C)

the answer is c. credits to the person above me. :]
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