Given that 2x – 7y = 30
Find y when x = = -3
Give your answer as an improper fraction in its simplest form.
y =

Answers

Answer 1

Answer:

x = -3; substitute it to the other equation.

2(-3) - 7y = 30

-6 - 7y = 30

-7y = 30 + 6

-7y = 36

y = -36/7

we will not round the number because the question is asking for an improper fraction at its simplest form.

Answer 2

Answer:

5.1

Step-by-step explanation:

2*-3 - 7y =30

-6 + 7y = 30

7y = 30 + 6

y = 36 / 7

i.e. y = 5.1


Related Questions

Simplify 2/4 please and thank you

Answers

Answer:

1/2

Step-by-step explanation:

2/4 is equal to 1/2, because if you divide 4 by 2 you get 2, and if you divide 2 by 2 you get one.

Basically, the simplification process would look something like this...

2/4 ÷ 2/2 = 1/2

Y intercept (3,1) and (-4,-6)?​

Answers

Answer:

y-intercept:  (0, -2)

Step-by-step explanation:

Determine by how much x (the run) and y (the rise) change as you go from (-4, -6) to (3, 1):  The change in x is 7 and that in y is also 7.  Thus, the slope is

m = 7/7, or m = 1.

Using the point-slope form and the point (3, 1), we get:

y - 1 = 1(x - 3), or y = 1 + x - 3, or y = x - 2

Comparing this to y = mx + b, we see that the y-intercept is -2.

WILL GIVE BRAINLIEST GIVE EXPLANATION

Answers

Answer:

5z+30

Step-by-step explanation:

5(z+6)

^ multiply each term in the parentheses by 5

5z+5x6

then,

5z+5x6 (multiply the numbers)

the answer will be 5z+30

The sum of two numbers is 20.8 and their difference os 10.2. Find these numbers.

Answers

Answer:

the numbers are 10.6 and 10.2

4x-2=14 i already know this just wanted to ask something

Answers

Answer:

4x-2=14

4x=14+2

x=16/4=4

1. You can buy six cans of root beer for $2.50. How many cans of root beer
can you buy for $10? What proportions will work to solve this problem?

Answers

Answer

24 cans

Step by Step explanation

10$ / 2.5$ = 4

6 * 4  = 24

please help i am really struggling . i really dont get it thanks :)

Answers

Answer:

I=P-A          

___________________________

4. Which situation could be represented by the equation 10.75 = 5.5 n?


Ricardo ran 5.5 miles.


He ran each mile in 10.75 minutes.


What is n, the total number of minutes it took Ricardo to run 5.5


miles?


Ricardo ran a totalof 10.75 miles on Monday.


He ran 5.5 miles in the morning and the rest of the miles in the


evening.


What is n, the number of miles Ricardo ran in the evening?


Ricardo ran a total of 10.75 miles.


He ran 5.5 miles each hour.


What is n, the number of hours Ricardo ran?


Ricardo ran 10.75 hours one week and 5.5 hours the next week.


What is n, the total number of hours Ricardo ran during these


weeks?

Answers

Answer:

Ricardo ran a total of 10.75 miles on Monday.

[tex]n =1.95[/tex]

Step-by-step explanation:

Given

[tex]10.75 = 5.5n[/tex]

Required

Which situation represents the equation and solve for n

The options show the relationship between distance, time and speed.

This is calculated as:

[tex]Distance = Speed * Time[/tex]

By comparison:

[tex]Distance = 10.75[/tex]

[tex]Speed = 5.5[/tex]

[tex]Time = n[/tex]

So, we can say that:

He ran 10.75 miles (option D)

Solving for n:

Make n the subject in [tex]10.75 = 5.5n[/tex]

[tex]\frac{10.75}{5.5} = n[/tex]

[tex]n = \frac{10.75}{5.5}[/tex]

[tex]n =1.95[/tex]

12. Remy took out a home-improvement loan to
pay for new kitchen cabinets. The loan was
for $10,000 at an annual interest rate of 5.6%.
Remy paid off the loan in 36 months.
She paid $ Drop-down in all
A. 10.680.00
B. 11,680.00
C. 12,016.00
D. 12,760.00

Answers

Answer:

Step-by-step explanation:

A=P(1+rt)

A=10000(1+.056(3))

A=10000(1.168)

A=$11680

Remy took the loan for [tex]\$10,000[/tex] at an annual interest rate of [tex]5.6\%[/tex] and paid off the loan in [tex]36[/tex] months. She paid [tex]\$11680[/tex] Drop-down in all.

What is interest ?

Interest is the charge you pay when you borrow money from someone or the cost you charge to lend money to someone.

Simple Interest [tex]=\frac{Principal \ * \ Rate \ * \ Time}{100}[/tex]

We have,

Principal[tex]=\$10,000[/tex],

Interest rate [tex]=5.6\%[/tex]

Time[tex]=36[/tex] months [tex]=3 years[/tex]

So,

Interest [tex]=\frac{Principal \ * \ Rate \ * \ Time}{100}[/tex]

              [tex]=\frac{10,000*5.6*3}{100}[/tex]

Interest [tex]= 1680[/tex]

So,

Total amount to be paid [tex]=( 10,000+1680)=\$11680[/tex]

So, the loan for [tex]\$10,000[/tex] at an annual interest rate of [tex]5.6\%[/tex] and time of [tex]36[/tex] months be paid [tex]\$11680[/tex] Drop-down in all.

To know more about interest click here

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The math team went to lunch to celebrate Ms. Renft's birthday on February 11th. The
cost of the meal with tax was $148. 60. The math team left a 15% tip. What was the
total cost of the meal including tip?

Answers

Answer:

$171.12

Step-by-step explanation:

Including the tip and cost, it is 171.12. Multiply 148.6 by 1.15, which includes the total cost plus another 15% for the tip.

Question 5 of 6
Use the guess and check method to solve this problem.
Bunyan Farm sells 3 pound and 5 pound bags of onions. The Tuesday
morning delivery consists of 25 bags weighing 99 pounds. How many bags
are there of each size?
A. 12 small bags and 13 large bags
B. 13 small bags and 12 large bags
C. 15 small bags and 10 large bags
D. 14 small bags and 11 large bags

Answers

Answer:

B. 13 small bags and 12 large bags

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

x is the number of small bags.

y is the number of large bags.

The Tuesday morning delivery consists of 25 bags

This means that [tex]x + y = 25[/tex], that is [tex]y = 25 - x[/tex]

Bunyan Farm sells 3 pound and 5 pound bags of onions. Total of 99 pounds.

This means that [tex]3x + 5y = 99[/tex]

Since [tex]y = 25 - x[/tex]

[tex]3x + 5(25 - x) = 99[/tex]

[tex]3x + 125 - 5x = 99[/tex]

[tex]-2x = -26[/tex]

[tex]2x = 26[/tex]

[tex]x = \frac{26}{2}[/tex]

[tex]x = 13[/tex]

[tex]y = 25 - x = 25 - 13 = 12[/tex]

So 13 small bags and 12 large bags.

Paul's
house
5 miles
Clara's
house
12 miles
What is the shortest possible distance between the houses?

O A. 8.5 miles
B. 13 miles
C. 14.5 miles
OD. 17 miles

Answers

I’m geussing it would be A because it’s the smallest therefore probably the lowest distance

The enrollment of students in evening classes at a local university decreased by 6% between two recent years. If the total number of students attending evening classes in both years was 13,925 , find how many students enrolled in evening classes in each of the years.

Answers

Answer:

First year: 13925; Second year: 13090

The distance from the ground to where the ladder is touching the wall is 7
feet. The distance from the wall to the base of the ladder is 4 feet. What is
the length of the ladder?
wall
ladder

Answers

Answer:

L=8.062 feet

Step-by-step explanation:

wall=7

distance=4

Pythagorean theorem

7^2+4^2=L^2

49+16=L^2

65=L^2

L=8.062 feet

The required length of the ladder is given as 8.06 feet.

What are Pythagorean triplets?  

In a right-angled triangle, its sides, such as hypotenuse, perpendicular, and base are Pythagorean triplets.

here,
As mentioned in the question,
perpendicular length = 7, base length = 4 feet,
Let the length of the ladder be x,
Following the Pythagoras theorem,
x² = 7 ² + 4²
x ² = 49 + 16
x² = 65
x = √65
x = 8.06

Thus, the required length of the ladder is given as 8.06 feet.

Learn  more about Pythagorean triplets here:

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It takes me 20 minutes to grade a students quit. how long in hours does it take me to grade 20

Answers

Answer:

400

Step-by-step explanation:

20 times 20

400 as explained above

Find the 59th term of the arithmetic sequence -8, -13, -18

Answers

Step-by-step explanation:

first term = a = -8

common difference = d = -13+8 = -5

59 th term = a + (59-1) d

= -8 + 58 (-5)

= -8 -290= -298

plz mark my answer as brainlist plzzzz.hope this will be helpful.

hi hi this was a great day i you had to go out for the

how many quarts are in a gallon ​

Answers

Answer:

4

Step-by-step explanation:

1 US liquid gallon = 4 US liquid quarts

Answer:

1 gallon = 4 quarts

Step-by-step explanation:

what equation represents a line whose slope is 1/2 and whose y-intercept is 3

Answers

Answer:

y = 1/2x + 3

Step-by-step explanation:

anUm, y = mx + b format. M would be the slope, b is the y intercept. and obviosuly x and y are the x and y components :D

y=mx+b where m is the slope and b is the y intercept, m=1/2 and b=3

y=x/2+3 or more neatly

y=(x+6)/2

For what value of x is the rational expression below equal to zero?
X- 4/X-6

Answers

When x equals to 4

4-4 = 0
-------------
4-6 = -2

0/-2 = 0

hope this helps

Help ASAP being timed please.

Answers

Answer:

Its the third one

Step-by-step explanation:

Plot all of the points onto the graph, and draw a line through all of the points. It most closely resembles the third one

Someone pls help me i dont wanna fail.

Answers

Top left : Unlike the others it is not displayed in a numerical form.
Bottom Left : It is the only item that goes above 1/100%.

Tomas buys a bag of 5 peaches for $3.55.
Write and solve an equation to find how
much money, m, Tomas paid for each peach-

Answers

Answer: 3.55÷5=m  3.55÷5=0.71 so Tomas paid $0.71 per peach

Step-by-step explanation:

What is the volume of this cone?
Use a ~ 3.14 and round your answer to the nearest hundredth.
7 in
5 in
cubic inches

Answers

Answer:

Volume = 183.26 cubic inches

Step-by-step explanation:

Volume of cone = ⅓πr²h

Where,

r = 5 in.

h = 7 in.

Plug in the values into the formula

Volume = ⅓*π*5²*7

Volume = 183.26 cubic inches (nearest hundredth)

calcule:(-2)⁰+(-2)¹+(-2)²+(-2)³

por favor​

Answers

Answer:

-5

Step-by-step explanation:

144 like exponent and with 12 like base

Answers

Answer:

That is not a question, Brainly is an educational app and I suggest you use it that way.

Which shape never has four congruent sides?
A square
B rhombus
C parallelogram
D isosceles trapezoid

Answers

Answer:

D

Step-by-step explanation:

its not a parallelogram, so that is not possible

the rest are

i hope this helps!

PLEASE HELP I ATTACHED A PICTURE

Answers

Answer:

option 2

Step-by-step explanation:

x is going away from 7 in a positive direction which means greater than. the fact that it is just greater than not equal to means that there is a black circle instead of a filled in one because it excludes that number.

Answer:

Option 2

Step-by-step explanation:

If the inequality is "x > 7" it means that if it was to be represented on a number line, all values that "c" could possibly take would be located to the right (on the number line) of 7. Now there only two options that follow this statement, those options are options 2 and 4. But there is another thing we must understand. x must be larger than 7 (it can not be equal to 7), therefor option 2 is right since it follows the second statement  while option 4 would represent inequality "x ≥ 7".      

I will give brainliest!!!

Answers

Answer:

In between 4 and 6

Step-by-step explanation:

Since there are 2 negative signs it automatically goes to positive so u would go to positive 5, which is in-between 4 and 6!

Hope this helps!! :D

What is the midpoint of the segment with endpoints (4,1) and (-1,6)

Answers

Answer:

( 1.5 , 3.5 )

Step-by-step explanation:

Answer:

(3/2, 7/2)

Step-by-step explanation:

We find the mean (average) of 4 and -1, obtaining 3/2 by combining 4 and -1 and then dividing the result by 2.  Thus, the x-coordinate of the midpoint is xm = 3/2.

Similarly, we find the mean of 1 and 6, obtaining ym = 7/2.

Thus, the midpoint is (3/2, 7/2).

PLEASE PLEASE HELP !!

Answers

answer: K and O would both be 76°
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