Answers
Answer:
x = -2
Step-by-step explanation:
y = -4
2x -3y = 8
Substitute the first equation into the second equation
2x - 3(-4) = 8
2x +12 = 8
Subtract 12 from each side
2x+12-12 = 8-12
2x = -4
Divide by 2
2x/2 = -4/2
x = -2
Related Questions
0
Tickets to a movie cost $9.00 for adults and $5.50 for students. There were 150 tickets purchased for a total of $1,105.00. The following system of
equations models the situation, where a is the number of adult tickets purchased and s is the number of student tickets purchased. Write the
terms with the variables in alphabetical order.
9a + 5.5s = 1.105
a +5 = 150
Rewrite the second equation in the system so that the variable for the number of adult tickets purchased can be eliminated by subtraction.
Answers
Answer:
150a
Step-by-step explanation:
The mathematical sentence that describes the inequality 5n - 10 > 26 is: Ten subtracted from 5 times n is greater than 26. I hope this mathematical sentence is what you are looking for,
Write the inequality in words.
5n – 10 > 26
A. Ten less than a number is less than or equal to twenty-six.
B. Ten less than five times a number is greater than twenty-six.
C. Five times n less than ten is twenty-six.
D. Ten plus five times n is less than or equal to twenty-six.
Answer:
Write the inequality in words.
5n – 10 > 26
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
n > 36/5
Interval Notation:
(36/5, ∞)
THANKS
0
Answers
Answer:
B. Ten less than five times a number is greater than twenty-six.
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
n > 36 /5
Interval Notation:
( 36 /5 , ∞ )
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Answers
Answer:
a = √39 (exact)
a = 6.24 (dec.)
Step-by-step explanation:
a^2 + b^2 = c^2
a^2 + 5^2 = 8^2
a^2 + 25 = 64
a^2 = 39
a = √39 (exact)
a = 6.24 (dec.)
2
John, 25, just started contributing to his employer's 401(k) plan and started an IRA account. He is choosing to invest only in bonds and secure
Investments instead of high-risk stocks. Is John pursuing a wise investment strategy?
Select the best answer from the choices provided.
O A Yes; retirement Income should be protected from turmoil in the stock market.
OB. Yes; as john gets closer to retirement, he can switch to higher yielding stocks.
OC. No; young investors can afford more risk since they have time to recover from any sudden loses.
OD
No; bonds and safe investments are not part of good retirement plans.
Answers
Answer:
I think its C
Step-by-step explanation:
question number 7 and 8 only.
Answers
This is a 3rd grade math question. I don't know how to explain it to a 9yr old
Answers
this is 3rd grade math? jesus..
Answer:
that poor 3rd grader O.O that is hard
Step-by-step explanation:
online
In the following diagram, parallelogram ABCD contains triangle CED. Line CE and line ED intersect at point E. The measures of ∠CEA and ∠CDE are shown. What is the measure of x?______ degrees *
Answers
Answer:
∠x = 59°
Step-by-step explanation:
∠ECD = 52° because they are alternate angles and will be equal
∠x = 180° - 52° - 69° = 59° because the sum of the interior angles of a triangle = 180°
Regan cycles 78 miles in 6 hours. His average speed for the first 30 miles is 15 miles per hour. Work out Regan's average speed for the last 48 miles.
Answers
Answer:
12 mph
Step-by-step explanation:
Given that:
Total distance traveled = 78 miles
Time taken, t = 6 hours
Average speed for first 30 miles = 15 mph
Time taken = distance / speed
Time taken = 30 / 15
Time taken = 2 hours
Average speed for last 48 miles = x
Time taken to travel last 48 miles = (6 - 2) = 4 hours
Average speed for last 48 miles :
Distance traveled / time taken
48 miles / 4 hours
= 12 mph
Please help.
Is algebra.
Answers
Answer to question 1 is D
answer to question 2 is A
Which equation represents the line that passes through the point (3, –1) and is perpendicular to the graph of x + 4y = 10?
Answers
Answer:
y=6x+7
Step-by-step explanation:
jet travelling at 500 km/h for 4 hours.
Answers
Answer: jet travels a total of 2000 km in total
Step-by-step explanation:
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
Someone please help
Answers
Answer:
The first one
Step-by-step explanation:
Because
QUICK! Giving brainliest to correct answer
Answers
Answer:
Dominos is the better deal.
Hugo wanted to reorganize his superhero figure collection. He split his collection evenly
among 3 shelves. When he was done, there were 12 figures on each shelf. How many
figures are in Hugo's collection?
Answers
Answer:
36
Step-by-step explanation:
3*12=36
What is the area of this quadrilateral?
4 ft
3 ft
10 ft
10 ft
31
4 ft
Answers
Answer:
42
Step-by-step explanation:
Answer:
42 square feet
Step-by-step explanation:
add all of the square feet together, including the sides parallel that don't tell you how many inches. What I mean by parallel is the sides across from it.
What is the slope of the line through (-7,-2) and (−6,7)?
Answers
Answer:
slope = 9
Step-by-step explanation:
To find the slope of a line that passes through a pair of points, use the slope formula, [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]. Substitute the x and y values of (-7,-2) and (-6,7) into the formula and simplify:
[tex]m = \frac{(7)-(-2)}{(-6)-(-7)} \\m = \frac{7+2}{-6+7} \\m = \frac{9}{1} \\m = 9[/tex]
So, the slope is 9.
A rectangular window is 3.5 feet wide and has an area of 19.25 square ft you have six yards of string light do you have enough string lights to outline the window with light
Answers
Answer:
yes
Step-by-step explanation:
We are to determine if 6 yards is enough t to go round the perimeter of the window
The length is not given, so we have to determine the length from the area
Area of a rectangle = length x breadth
19.25 = 3.5 x length
length = 5.5 feet
Perimeter = 2 x ( length + breadth )
2 x (5.5 + 3.5) = 18 feet
We need to convert the string to foot
1 yard = 3 foot
6 x 3 = 18 foot
the string and the perimeter are equal, so it is enough
- A computer modem can transmit
1.5 X 10 bytes per second. How many
bytes can it transmit in 300 seconds?
Write your answer in scientific notation.
Answers
= 300 x (15)
= 4500
= 4.5x10^3
58, 72, 74, 92, 84, 40, 74, 81, 76, 83 What was the mean score on Mr. Shenton’s final exam?
Answers
Answer: 73.4
Step-by-step explanation:
To find the mean, you add up all your data value then divide the sum by the # of values in the set.
58 + 72 + 74 + 92 + 84 + 40 + 74 + 81 + 76 + 83
= 734
There are 10 numbers in the set.
734 ÷ 10 = 73.4
The mean score on Mr. Shenton's final exam is 73.4
martin has read 20% of a book. He has 8 more pages to finish. How many pages are there in the book?
Answers
Answer:
10 pages are in the page if im correct
3x ft
1.5x ft
x ft
180 ft
Answers
Your friend Sam wants to paint her room. She wants to paint the ceiling
white and the four walls purple.
You are helping Sam determine the cost and the amount of time needed to
paint her room.
The room is shaped like a rectangular prism with a height of 8 feet, length of
12 feet, and width of 10 feet as shown.
Answers
one hundred and twenty approximately
Use the benchmark 1/2 to compare 5/8 and 2/7
Answers
Answer:
what?
Step-by-step explanation:
what is the area of 1 1/5 width and 1 1/3 length
Answers
Answer:
1.6 unit^2 (dec. form) or 1 3/5 unit^2 (frac. form)
Step-by-step explanation:
(1 1/5)(1 1/3)
(6/5)(4/3)
1.6 unit^2 (dec. form) or 1 3/5 unit^2 (frac. form)
Solve for x, y, and z. Enter the integer that is under each radical.
Answers
Answer:
[tex] x=\sqrt{10} [/tex]
[tex] y = \sqrt {14} [/tex]
[tex] z = \sqrt {35} [/tex]
Step-by-step explanation:
By geometric mean theorem:
[tex] x=\sqrt{2\times 5} [/tex]
[tex] x=\sqrt{10} [/tex]
By Pythagoras Theorem:
[tex] y^2 = x^2 + 2^2 [/tex]
[tex] y^2 = (\sqrt{10}) ^2 + 2^2 [/tex]
[tex] y^2 = 10 + 4 [/tex]
[tex] y^2 = 14 [/tex]
[tex] y = \sqrt {14} [/tex]
Again by Pythagoras Theorem:
[tex] z^2 = x^2 + 5^2 [/tex]
[tex] z^2 = (\sqrt{10}) ^2 + 5^2 [/tex]
[tex] z^2 = 10 + 25 [/tex]
[tex] z^2 = 35 [/tex]
[tex] z = \sqrt {35} [/tex]
Kim is repainting a storage trunk shaped like a rectangular prism as shown.
Kim will paint all the faces of the outside of the storage trunk when it is closed. How many square feet will Kim paint?
Answers
Answer:
i got 54ft^2
Step-by-step explanation:
Which of these describe a unique polygon
Answers
Answer: d
Step-by-step explanation:
what is the mx of a slope of -1 and a y-intercept of 4
Answers
y=-1x+4
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hope it helps
sorry I had no idea how to explain
Which expression is equivalent to 13 22b
Answers
help ASAP ill mark brainliest, you dont need to explain the answer
Answers
Answer:
The first option.
Step-by-step explanation:
Add all the numbers together and voila you get 27