The given linear equation can be simplified to:
15 = 40
Which means that the equation has no solutions.
How many solutions we have for the given equation?
Here we have the linear equation:
3*(2x + 5) - 6x = 40
And we want to see how many solutions does this equation has.
The solutions are the values of x such that the equation becomes true.
Then we can rewrite:
3*(2x + 5) - 6x = 40
Distributing the product we get:
3*2x + 3*5 -6x = 40
6x + 15 - 6x = 40
(6x - 6x) + 15 = 40
15 = 40
Notice that this equation does not depend of x, and it is false, (15 is not equal to 40)
So there are no value of x such that the equation is true, which means that the linear equation has no solutions.
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Use the Distributive Property to rewrite each expression. -3(-2x + 4)
-6x + 12
6x + 4
5x - 12
6x - 12
HELP ASAP
Answer:
hope this helps :)
Step-by-step explanation:
Help with math question
Answer:
I believe because everything adds to 180
A system of equations and its solution are given below. System A Complete the sentences to explain what steps were followed to obtain the system of equations below. System B To get system B, the equation in system A was replaced by the sum of that equation and times the equation. The solution to system B the same as the solution to system A.
Answer:
To get to system B the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 4. The solution to system B is the same as the solution to system A.
Step-by-step explanation:
A system of equations and it’s solution are given below.
System A.
x-y=3
-2x+4y=-2
Solution: (5,2)
Complete the sentences to explain what steps were followed to option the system of equations below.
System B
x-y=3
2x=10
To get to system B the (first/second) equation in system A was replaced by the sum of that equation and the (first/second) equation multiplied by (4....2.....-3) . The solution to system B (is/ is not) the same as the solution to system A.
Solution:
To get system B:
First write the first equation in system A. x - y = 3
Multiply the second equation in system A by 4 and add to the first equation in system A to get:
2x = 10
x = 10/2 = 5
Put x = 5 in x - y = 3
5 - y = 3
y = 5 - 3 =2
The solution to system B is the sam as that of system A
To get to system B the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 4. The solution to system B is the same as the solution to system A.
This question makes exactly no sense.
However, if yall want the answer to
Question:
System A
x-y= 7 -3x+9y = -39 Solutions (4,-3)
Complete the sentences to explain what steps were followed to obtain the system of equations below
x-y= 7 6y= -18
Solution:
To get system B, the second equation in system A was replaced by the sum of that equation and 3 times the first equation. The solution to system B is the same as the solution to system A.
9+4x-3x+9 pls help me with this
Answer:
I hope this helps:)
Step-by-step explanation:
Ella works two part-time jobs, one before school and one after school. Before school, she earns
$11.25/hour, and after school she earns $11..75/hour. Last
week, she earned a total of $278.
She works twice as many hours after school. How many hours did she work at each job last
week?
a=after school; b = before school *
(1 Point)
O a= 15 and b= 8
O a= 16 and b= 8
O a= 8 and b= 16
O a= 15 and b=9 lo
The Ella works 16 hours after school and 8 hours before school.
What is an mathematical expression?
Expression in mathematics is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Here, it is given that :
Ella works two part-time jobs, one before school and one after school. Before school, she earns $11.25/hour, and after school "a" she earns $11..75/hour and She works twice as many hours after school that is :
a = 2b ......(1)
also, 11.25a + 11.75b = 278....(2)
now, solving for a and b :
11.25a + 11.75b = 278
11.25(2b) + 11.75b = 278
b = 278/34.25
b ≈ 8 hours
Now, the value of a will be 2b = 16 hours
Therefore, the Ella works 16 hours after school and 8 hours before school.
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What is the product of 9/14 and 7/15
A. 1/10
B. 3/10
C. 16/29
D. 8/105
Answer:
63/210 or 3/10
B.
Step-by-step explanation:
14 · 15 = 210
9 · 7 = 63
Answer:
B- 3/10
Step-by-step explanation:
9/14 x 7/15
multiply across so you would now get 63/210 and we can divide the top and bottom by 21 so it will simplify to 3/10
Find cy.
I really need help :(
Answer: 66.9
Explanation: This is right because BY looks to be equal to CY so there for CY is 66.9
Hope this helps :)
Choose the fastest jogger.
A. Julie walks 10 miles in 2.5 hours.
B. Larry walks 15 miles in 2 hours.
C. Mike walks 6 miles in 1 hour.
D. Katie walks 18 miles in 3 hours
Answer:
Larry
Step-by-step explanation:
15divided by 2 is 7.5
Julie:4
Mike:6
Katie:6
Answer please. Explanation thank you, you don’t have to explain if you don’t want to. Please answer
There are 4 baskets that store 16 bathroom towels. Consider the number of bathroom towels per basket
Answer:
4 towels per basket
Step-by-step explanation:
easy promise but I'm not too smart
is c=5t proportional or nonproportional
Answer:
Proportinal
Step-by-step explanation:
The y is 0
−3(2x+7)=1/2x
what is x?
Answer:
x= Negative 42/13
As a mixed number= Negative 3 3/13
Step-by-step explanation:
Answer:
hope this helps
Step-by-step explanation:
It takes Santa a total distance of 1800 miles to cover a portion of his
Texas route, he does this in 3 hours, how fast is Santa moving? *
2400 mph
600 mph
350 mph
150 mph
please help!! hurry
Answer:
the answer is 600mph
Step-by-step explanation:
because 1800miles/3 hours=600mph
Answer:
600 mph
Step-by-step explanation:
In order to find the answer you must solve using this formula:
S=D/T
Where S is speed, D is distance, and T is time
You have time and distance, so you have to plug those into the formula:
S=1800/3
Then all you have to do is divide 1800/3 and get 600 for speed.
How is the product of 2 and –5 shown using integer tiles? 2 positive tiles and 5 negative tiles. 2 negative tiles and 5 positive tiles. 5 negative tiles and 5 negative tiles. 5 positive tiles and 5 positive tiles.
Answer:
I think the answer is 2 positive tiles and 5 negative tiles.
Step-by-step explanation:
good luck m8
Answer:
g777777777777777777777ttttttttttttttttttttttttttttttttt
Step-by-step explanation:
n/15=21/35 Solve for the missing value in the proportion.
Answer:
n=9
Step-by-step explanation:
21/35 has a gcf of 7. so reduce to 3/5
move 3/5 to the left side to get
n/15=-3/5=0
solve as a linear equation.
n/15=-3/5=0 is equivalent to .67*n-0.6=0
which is equal to n=-9
Easy math problems!!!!!!!!
Answer:
x = 56 degrees
Step-by-step explanation:
Why? they are interior opposites. Even if you would try to measure it with a protractor on your screen, it will sure to be ending up with the same angle! I hope this helps, mate. Good luck!
I don't know i'm super sorry
the department of education wishes to estimate the proportion of all college students who have a job off-campus. it surveyed 1600 randomly selected students; 451 had such jobs. the population of interest to the department of education is:
The population of interest to the department of education will be all college students.
A population is a large group of individuals that have some common feature by the researcher's point of interest.
Here the Department of Education wishes to estimate the proportion of all college students who have a job off-campus.
Proportion: A proportion is an equation in which two ratios are set equal to each other. If there is 1 boy and 3 girls you could write the ratio as: 1 : 3 (for every one boy there are 3 girls) 1 / 4 are boys and 3 / 4 are girls. 0.25 are boys (by dividing 1 by 4).
So , he needs data of all students to compute the exact proportion.
But instead of that he surveyed 1600 randomly selected students which determine the sample.
Sample just gives the estimate of the parameter.
Hence, the population of interest to the Department of education is " All college students" .
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Find the sum:
---------------------
Answer:
2x + 1
-----------
x^2 + 1
Step-by-step explanation:
i plugged it into mathw ay :) its a great site that solves ur equations and any math questions
HELP ME!!!!!! h(x) = -(x + 2)2 + 8 what is the axis of Symmetry
Answer:
The vertical line [tex]x = -2[/tex] is the axis of symmetry of [tex]y = -(x + 2)^{2} + 8[/tex].
Step-by-step explanation:
For the graph of a quadratic function, the axis of symmetry is the vertical line that goes through the vertex of this function.
In general, if the vertex of a quadratic function is at [tex](x_{0},\, y_{0})[/tex], the vertex form equation of this function would be [tex]y = a\, (x - x_{0})^{2} + y_{0}[/tex] for some non-zero constant [tex]a[/tex] ([tex]a \ne 0[/tex].)
Rewrite the quadratic equation in this question [tex]y = -(x + 2)^{2} + 8[/tex] to match the vertex form:
[tex]y = -(x + 2)^{2} + 8[/tex].
[tex]y = (-1)\, (x - (-2))^{2} + 8[/tex].
Thus:
[tex]a = (-1)[/tex].[tex]x_{0} = (-2)[/tex].[tex]y_{0} = 8[/tex].Hence, the vertex of this parabola would be at [tex](-2,\, 8)[/tex].
Again, the axis of symmetry of this graph would be a vertical line that goes through this vertex. The [tex]x[/tex]-coordinate of this vertical line would be [tex](-2)[/tex]. The equation of this vertical line would be [tex]x = (-2)[/tex].
Hence, the axis of symmetry of this quadratic function would be [tex]x = (-2)[/tex].
Which equation can be solved to find one of the missing side lengths in the triangle?
the width of a rectangle measures (8c-5)(8c−5) centimeters, and its length measures (2c 10)(2c 10) centimeters. which expression represents the perimeter, in centimeters, of the rectangle?
The expression that represents the perimeter of the rectangle is [tex]$\boxed{20c + 10}$[/tex] centimeters.
We are given that;
Width= (8c-5)(8c−5) centimeters
Length= (2c 10)(2c 10) centimeters
Now,
The perimeter of a rectangle is given by the formula:
P = 2l + 2w
where l is the length and w is the width.
[tex]$w = (8c-5)\ cm$[/tex]
and
[tex]$l = (2c+10)\ cm$[/tex]
Substituting these values into the formula for the perimeter, we get:
[tex]$P = 2l + 2w = 2(2c+10) + 2(8c-5) = 4c + 20 + 16c - 10 = \boxed{20c + 10}\ cm$[/tex]
Therefore, by rectangle the answer will be [tex]$\boxed{20c + 10}$[/tex].
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The line located opposite the prime meridian at 180 longitude is the blank
Answer: International Date Line
5 pounds of bananas for $1.97 for 3 pounds of bananas for $1.05 which is better to buy
Answer:
3 pounds for $1.05 is better since it is 35 cents a pound as opposed to 39 cents a pound for the other product.Step-by-step explanation:
We need to find the unit rate. This found by dividing the price by the number of bananas so we get the price for 1 pound of bananas.
$1.97/5 = $0.39
$1.05/3 = $0.35
3 pounds for $1.05 is better since it is 35 cents a pound as opposed to 39 cents a pound for the other product.
|14 | + l -3 l =
Pls help meereeeerrrrr
Answer:
What…
Step-by-step explanation:
Can someone help me please
Find the distance between points P(8, 2) and Q(3, 8) to the nearest tenth.
Lin has two small baking pans, each shaped like a rectangular prism. For each question, explain or show your reasoning.
a. Lin lines the bottom of her first pan with aluminum foil. The area of the rectangular piece of foil is 1114 square inches. Its length is 412 inches. What is the width of the foil?
b. Lin's second pan has a length of 83 inches, a width of 154 inches, and the height of 32 inches. What is the volume of the second pan?
Answer:
2 1/2
Step-by-step explanation:
( 11 1/4 ) / ( 4 1/2 ) = 2 1/2
( 2 1/2 ) = 5/2
The width of the pan is 2.70 inches.
The volume of the pan is 409,024 inches³
A rectangular prism is a polyhedron with six faces and twelve edges. It is also known as a cuboid.
The width of the foil can be determined by dividing the area by the length.
Width = area / length
1114 / 412 = 2.70 inches
Volume of the pan =length x width x height
83 x 154 x 32 = 409,024 inches³
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what is 0.33 as a decimal
Answer:
0.0033
Step-by-step explanation:
Answer:
0.033
Step-by-step explanation:
0.33% as a decimal is 0.033. You move the decimal point 2 times to the left.
HELP BEING TIMEDD
Enter the formula to find the surface area of a prism involving area of the Base and Perimeter of the base
Answer:
p=3+4+5=12
Step-by-step explanation:
Answer:
96 inches2 or 352 cm2
Step-by-step explanation:
-Okay so, we know that The lateral surface area of a prism is the sum of the areas of its lateral faces. And The total surface area of a prism is the sum of the areas of its lateral faces and its two bases. Then Usually, if "right" or "oblique" is not mentioned, you can assume the prism is a right prism. The general formula for the lateral surface area of a right prism is L.S.A.=ph where p represents the perimeter of the base and h represents the height of the prism.