Solve the system of equations: {2(3x-2y)+1=7x, 12(x+y)-15=7x+12y
Answers
Step-by-step explanation:
hope this help have a great day!
Related Questions
A cereal box is 8 1/2
inches long, 2 1/2
inches wide, and 12 inches high. What is the volume of the box?
The volume of the cereal box is blank cubic inches.
Answers
Answer:
V = 255
Step-by-step explanation:
Cereal box is a rectangular prism.
Rectangular Prism formula:
V = whl
Given:
w = 2.5
h = 12
l = 8.5
Work:
V = whl
V = (2.5)(12)(8.5)
V = 255
Answer: 1428
Step-by-step explanation: Length of the cereal box = 8 1/2 inches
= 17/2 inches
Width of the cereal box = 3 1/2 inches
= 7/2 inches
Height of the cereal box = 12 inches
Then
Volume of the cereal box = Length * Width * Height
= (17/2) * (7/2) * 12 cubic inches
= 17 * 7 * 12 cubic inches
= 1428 cubic inches
Mrs. Thomas and Mrs. Maas were folding report cards to send home to parents. The ratio of the number of report cards Mrs. Thomas folded to the number of report cards Mrs. Maas folded is :. At the end of the day, Mrs. Maas folded a total of 273 report cards. How many did Mrs. Thomas fold?
Answers
Answer: 182 report cards
Step-by-step explanation:
The ratio of the number of report cards Mrs. Thomas folded to the number of report cards Mrs. Maas folded is 2:3.
Mrs. Maas folded 273 report cards so the number of report cards folded by Mrs. Johnson can be found using direct proportion. Assume Mrs. Johnson folded x report cards:
2 : 3
x : 273
Cross multiply to get:
3x = 546
x = 546 / 3
x = 182 report cards
Mrs. Patterson but a set of building blocks for her son each cube shaped block measured 4 cm on one side what is the volume of six building blocks
Answers
Given:
The shape of all building blocks is a cube of side 4 cm.
To find:
The volume of six building blocks.
Solution:
Volume of a cube is:
[tex]V=a^3[/tex]
Where, a is the side length of the cube.
Putting [tex]a=4[/tex], we get
[tex]V=(4)^3[/tex]
[tex]V=64[/tex]
It means the volume of each building block is 64 cubic cm.
Now, the volume of six building blocks is
[tex]Volume=6\times V[/tex]
[tex]Volume=6\times 64[/tex]
[tex]Volume=384[/tex]
Therefore, the volume of six building blocks is 384 cubic cm.
A pontoon boat is traveling 25 miles per hour in the direction of S 65° W. If it hits a current traveling at 6 miles per hour in the N 15° W direction, find the resultant vector.
Answers
Answer:
resultant vector = 25.2
Step-by-step explanation:
we apply cosine theorem
PLEASEPLEASE ANSWER IM BEGGING JSJDJDJ
Answers
Explanation: you can set 2x+100 = 5x+55 because they are corresponding interior angles.
Work:
2x+100 = 5x+55
2x+100-5x = 55
2x-5x = 55-100
-3x = -45
divide by -3 to cancel the negative and get x by itself
x = 15
Hope this helped! :)
Please help me with this homework
Answers
You have to use Pythagorean Theorem here.
Hi people I need help on this question can y’all help me pls!!!!!! Thanks
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1. Write a similarity statement if the triangles are similar
2. If the traingles are similar, state the triangle similarity postulate (shortcut) you used to prove similarity.
U
36
73
30
15
D
E
Answers
Answer:
The triangles are not similar
Step-by-step explanation:
The sides are not proportional
36/73 does not equal to 15/30
A rope 13 meters long will just reach from the top of a flagpole to a point on the ground 12 meters from teh base of the flagpole. Find the height of the flagpole
Answers
Answer:
the height of the flagpole is 5 meters
Step-by-step explanation:
The computation of the height of the flagpole is given below
Given that
the length of the rope is 13 meters
And, the ground would be 12 meters
Based on the above information, the height of the flagpole is
= √13^2 - √12^2
= √169 - √144
= √25
= 5 meters
hence the height of the flagpole is 5 meters
Which of the following is true about the sequence graphed below?
Answers
Answer:
Step-by-step explanation:
The sequence is arithmetic because the terms have a common difference.
Hopes this helps:)
Kenneth started saving for retirement at age 40 with plans to retire at age 70. He invested an average of $400 per month in various securities, with an average annual return of 7% adjusted for inflation. Assuming monthly compounding, how much has Kenneth saved at the start of retirement.
A. $487,988.40
B. $720,421.84
C. $37,784.31
D. $556,559.8
Answers
Answer:
487,988.40
Step-by-step explanation:
I took the test
While drawing a triangle, Michael decided that he wanted to have the longest side to measure 32 cm. Which pair of side lengths could create the other two sides of his triangle? (7TH GRADE MATH)
Answers
Answer:
c
Step-by-step explanation:
The rabbits ate three fifths of the celery crop in each of 8 gardens. What fraction of celery crop did they eat in all?
Answers
Answer:
The answer is a
Step by step
Multiplication
8×5 = 40
8×3 = 21
21/40
Step-by-step explanation:
Someone help if right will mark brainiest
Answers
Answer:
D, 3/5
Step-by-step explanation:
Sin equals opposite over hypotenuse.
The side opposite of Z is 30, the hypotenuse is 50
30/50 simplifies to 3/5
yolandas mother was born in 1975 how old is her mother ?
Answers
45 OR 46
It depends on which month and day she is born on in 1975.
If you want it from todays current date, she would be 46.
If her birthday is the 11 / 04 / 1975 (eleventh of April) - 31 / 12 / 1975 (thirty-first of December) then she is 45 years old. If her birthday has already passed in 2021 she is 46.
A line with a slope of 0 contains the point (3,4) . The point -2,? is also on the line. What is the missing y-coordinate?
The solution is ___________
please don't use files
Answers
Write the equation of the line that passes through (-4, 3) and is perpendicular to the line y = 7/5x-2/5
Answers
Answer:
y - 3 = (-5/7)(x + 4)
Step-by-step explanation:
The given line, y = 7/5x-2/5, has a slope of 7/5. Any line perpendicular to this one must have a slope tht is the negative reciprocal of 7/5, which is -5/7.
Use the point-slope formula to come up with an equation for this new line:
y - 3 = (-5/7)(x + 4)
What is the slope of the line below?
1. 1/4
2. −1/4
3. 2
4. −2
Answers
Answer:
2
Step-by-step explanation:
Answer:
It is number three{ 3) 2 }I hope that is useful for you :)
Rectangle PQRS is rotated 90° counterclockwise about the origin.
Answers
Answer:
Can you please provide more information about the rectangle? Do you have a graph or some points?
Answer:c
Step-by-step explanation:
a person eats 100 bananas in 1 second likelihood
Answers
Answer:
Not very likely
Step-by-step explanation:
Brₐinliest plz
Simple Composite figures question. Find the area of the shape.
Answers
9514 1404 393
Answer:
453.9 m²
Step-by-step explanation:
It considerably simplifies the area calculation to assume the figure decomposes to a parallelogram and an equilateral triangle.
The area of the parallelogram is ...
A = bh
A = (17 m)(6 m) = 102 m²
The area of the equilateral triangle—using the given altitude—is ...
A = 1/2bh
A = 1/2(17 m)(14.7 m) = 124.95 m²
The area of the whole figure is double the sum of these areas, so is ...
A = 2(102 m² +124.95 m²) = 453.9 m²
The area of the shape is 453.9 m².
__
Additional comment
Unless we make some assumptions about the location of the concave exterior angle at the left and right, we cannot compute the area of the figure. At least, we must assume the 10 m segments are parallel. If that is the only assumption, and other dimensions are taken at face value, the area of the figure computes to about 453.4 m². As you can see from the attachments, the altitude of 14.7 is not quite enough to make the triangle equilateral. That prevents the quadrilateral from being a parallelogram.
Further dividing the quadrilateral along its short diagonal, various lengths and angles can be found using the law of sines and the law of cosines. Then the figure area can be found as the sum of triangle areas: two triangles in the quadrilateral, and the one with altitude 14.7. This alternate approach is shown in the second attachment.
Use the distributive property to solve the equation -2(x+5) =4
Answers
add 10 to both sides
-2x=14
x=-7
determine the value of f(3) for the function f(x)=2x+4
Answers
Answer:
f(3)=10
Step-by-step explanation:
got the answer right on a test!
PLS HELP! DONT SKIP PLS.
Elena borrowed some money from her brother. She pays him back by giving him the same amount every week. The graph shows how much she owes after each week. 1. What is the slope of the line?
2. Is the slope positive or negative?
3. How much money did Elena borrow? (Hint: Vertical Intercept)
Answers
Answer:
1. -3
2. negative
3. $18
Step-by-step explanation:
1. slope is rise/run so...
-3/1=-3
2. because run was a change of 3 DOWN the y axis we and run is a change of 1 to the right on x axis we have a negative slope. -3
3. she borrowed $18. Vertical intercept means the point where our line crosses the vertical axis. (Vertical axis is Y axis.)
Solve the system of equations using the elimination method. 2x − 3y = 50;7x + 8y = −10
A. (0, 5)
B. (6, 10)
C. (10, −10)
D. (3, −3)
Answers
Answer: C. (10, -10)
Step-by-step explanation:
Given
1) 2x-3y=50
2) 7x+8y=-10
Multiply both sides of 1) equation by 3.5
1) 3.5(2x-3y)=3.5×50
7x-10.5y=175
2) 7x+8y=-10
Subtract 2) equation from the 1)
(7x-10.5y)-(7x+8y)=175-(-10)
-18.5y=185
y=-10
x=10
(10, -10)
Hope this helps!! :)
Please let me know if you have any questions
#1. Use substitution to solve the system of equations
y = 6x
2x + 3y = -20
Solution: (
Answers
Answer:
I hope this would help you:)
A laptop carry bag cost $30. The total cost will include an 8% sales tax. Which expression can be used in calculating the total cost with tax?
Answers
Answer:
30+8%=C
Step-by-step explanation:
place the cost of the bag first then add the precent and make it equal to C wich is cost
please help im sorry that it's 4 problems
Answers
Answer:
the first 1 in standard form is [tex]y=-2x^{2} +8x-8[/tex]
12. [tex]y=2x^{2} +4x-16[/tex]
13. [tex]y=-3x^{2}+6x+9[/tex]
14.[tex]y=2x^{2} +2x-4[/tex]
Step-by-step explanation:
hope this helps have a good rest of your night/day :) ❤
can I get brainliest please I only have 4 plz
What is 2 x 3/4?
It must be !!
Answers
Answer:
1.5
Step-by-step explanation:
[tex]\frac{2x3}{4}= \frac{6}{4}[/tex]
[tex]\frac{6}{4}[/tex] ÷2=
[tex]\frac{3}{2}[/tex]
Hope this helps :)
Answer:
1 1/2 or 3/2
Step-by-step explanation:
2 x 3/4
6/4
3/2
1 1/2
Maggie is rock climbing. After reaching the summit, she descends 14 feet in 213 1 3 minutes. If she continues at this rate, where will Maggie be in relation to the summit after 8 minutes?
Answers
Answer:
48 feets
Step-by-step explanation:
Given that:
Maggie descends 14 feets in 2 1/3 minutes
14 feets takes 7/3 minutes
The amount of feets she descends after 8 minutes will be x ;
14 = 7/3
x = 8
Cross multiply
7/3 * x = 14 * 8
7x /3 = 112
7x = 112 * 3
7x = 336
x = 336 / 7
x = 48 feets