Answer:
2x+3=9
-3 -3
2x = 6
x= 3
Step-by-step explanation:
Subtract 3 for both sides of the equation
Divide 2 on both sides of the equation
You get x=3
Marla helped her mother and father fold invitations and put them into envelopes. If Marla can fill 36 envelopes in 30 minutes, how long will it take her to fill 48 envelopes? (Only enter a numerical answer)
Answer:
40 minutes
Step-by-step explanation:
12 envelopes every 10 minutes.
48 envelopes = 40 minutes
56 minutes hope this helped :)
Raphael graphed the system of equations shown. y = – 3 y = x – 0.8 A coordinate grid with 2 lines. The first line passes through the points (0, negative 0.1) and (0.8, 0). The second line is horizontal passes through the point (0, negative 3). The lines intersect at a point with a coordinate of slightly to the left of negative 2 and negative 3. What is the best approximation for the solution to this system of equations? (–3.2, –3) (–2.9, –3) (–2.2, –3) (–1.9, –3) Mark this and return
Answer:
(-2.2,-3) its c
Step-by-step explanation:
The best approximation for the solution to this system of equations is (-2.2, -3)
How to illustrate the System of equations?A system of equations is an equation that consists of more than 2 equations and unknowns. Given the system of equations
y = – 3
y = x – 0.8
Substitute equation 1 into 2
-3 = x - 0.8
x = -3 + 0.8
x = -2.2
Hence the best approximation for the solution to this system of equations is (-2.2, -3).
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Write an equation in slope intercept form for a line with a slope of - 3/2 that passes through the point 4,10 help please
Answer:
[tex]y = \frac{ - 3}{2} x + 16[/tex]
Step-by-step explanation:
They give us the slope so this makes it a lot easier.
Slope intercept formula is
y=mx+b
(m) is slope
(b) is y intercept
we can apply our slope into the formula
y=-3/2x+b
Now we can replace (y) with the (y) from the ordered pair they gave us (4, 10), and replace the (x) with the (x) from the ordered pair they gave us
(4, 10)
10=-3/2(4)+b
Now solve
10=-6+b
Add 6 to each side
16=b
Now we we put both our slope and intercept into the formula.
[tex]y = \frac{ - 3}{2} x + 16[/tex]
If one inch represents 14 feet, what dimensions would you use to make a scale drawing of a building 44 feet by 50 feet?
Answer: 3.14 in x 3.57 in
Step-by-step explanation: 44 / 14 = 3.14, 50 / 14 = 3.57
Identify the subsets of real numbers to which the number 25√ belongs.
rational
irrational
real
complex
Choose all that apply.
Answer:
Choose all that apply.
Step-by-step explanation:
On the map of an amusement park on a coordinate grid, the skating rink is at (0.5, −1).
Coordinate grid shown from negative 3 to positive 3 on x-axis and negative 3 to positive 3 on y-axis. There are increments of 1 over 2 for each grid line on each of the two axes. Only the whole numbers are labeled on either side of the axis.
Which of these shows how to plot the point to mark the skating rink?
A. From the origin, move 1 unit to the left along the x-axis and 0.5 unit vertically down, and place the point.
B. From the origin, move 0.5 unit to the left along the x-axis and 1 unit vertically down, and place the point.
C. From the origin, move 1 unit to the right along the x-axis and 0.5 unit vertically down, and place the point.
D. From the origin, move 0.5 unit to the right along the x-axis and 1 unit vertically down, and place the point.
Redon is 6ft 2in. tall, and his shadow is 4ft 1in. long . At the same time,a building casts a shadow that is 19ft 10in. long . Estimate the height of the building.
Choose all expressions that are equal to 45,000 ➗ 90. *
A 4,500 tens ➗ 9 ones
B 450 ➗ 90
C 450 ➗ 9 tens
D 4,500 ➗ 9
E 4,500 ➗ 90 tens
Answer:
A and C I think
You didn't explain the question well
Step-by-step explanation:
The given expression is equal to 4500/9. Therefore, option D is the correct answer.
The given expression is 45000÷90.
How to divide two numbers?To divide two numbers with the same sign, divide the absolute values of the numbers. The quotient is positive.
Now, 45000/90=4500/9 (We can cancel an equal number of zeros from the numerator and denominator)
The given expression is equal to 4500/9. Therefore, option D is the correct answer.
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Super easy 4th grade problem-2
help please you have to put an explanation as to why its the answer.
Answer:
12 1/4
Step-by-step explanation:
When you add the widths of the frames together you get 48.5 and subtracting that from 79 gives you 30.5 subtract 6 from that is 24.5 which is divided by2 to get 12.25 which when converted to a fraction is 12 1/4.
help with number 3 ,4, 5
Tessa was saving her money to buy a building set. She had $11.62 in her bank. Then, she earned 75 cents for doing her chores. How much money does Tessa have now?
Answer:
$12.37
Step-by-step explanation:
$ (11.62 + 0.75)
= $12.37
Hope this helped!
Rachel withdrawals $16 from her bank account once each day for 4 days. What integer represents the change in the amount in the account? Find the integer that would represent the change in the amount in the account if Rachel deposits $16 into her bank account once each day for 4 days. Explain the difference between the integer for the withdraws and the integer for the deposits
Answer:
caca
Step-by-step explanation:
pleaseee helpp whoever answers best ill give them brainliest xx
Answer:
uh what's the question- there needs to be a question to be an answer >.< i'll edit this answer once you tell me the question
Step-by-step explanation:
Answer:
my guess is 4?
im a little confused because there isnt a question
To download movies off the internet, you must pay $1.99 per movie, plus a one time fee of $5.50. Write an expression to show the total cost to download n movies.
Answer:
1.99n+5.50
Step-by-step explanation:
per movie means you multiply the price of each movie, 1.99, with the number of movies, n. You then simply add 5.50 because it is a one time fee.
Which describes the sequence of transformations used to obtain the image (triangle A’) from the pre-image (triangle A)?
dilation by a scale factor of 2, then rotation of 180° about the origin
dilation by a scale factor of 2, then a reflection over the x-axis
dilation by a scale factor of 1/2, then a rotation of 180° about the origin
dilation by a scale factor of 1/2. then a reflection over the x-axis
Answer: its c
Step-by-step explanation:
I just did it
The sequence of transformations will be dilated with a scale factor of 1/2 and rotated by 180°. Then the correct option is C.
What is a transformation of a shape?A point, line, or mathematical figure can be converted in one of four ways, and each has an effect on the object's structure and/or position.
Rotation does not change the shape and size of the geometry. But changes the orientation of the geometry.
The preimage is bigger than the image. That means the scale factor is less than one. Then the scale factor is given as,
Scale factor = 2 / 4
Scale factor = 1/2
The preimage is rotated by 180° about the origin to form the image.
The sequence of transformations will be dilated with a scale factor of 1/2 and rotated by 180°. Then the correct option is C.
More about the transformation of the shape link is given below.
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9.2032, 9.004, 9.04, 9.2
put in order from least to greatest
Answer:
9.004, 9.04, 9.2, 9.2032
Step-by-step explanation:
Answer:
9.004 9.04 9.2 9.2032
Step-by-step explanation:
3(1-2x)=1/4(6x+9) what does x equal?
A) x=1/10
B) x=7/10
C) x=-12/7
D)x=-1/5
Answer:
A
Step-by-step explanation:
3(1-2x)=1/4(6x+9)
3-6x=1 1/2x+2 1/4
-2 1/4 -2 1/4
3/4-6x=1 1/2x
+6x +6x
3/4=7 1/2x
/7 1/2 /7 1/2
1/10=x
Answer:
A
Step-by-step explanation:
$3\left(1-2x\right)=\frac{1}{4}\left(6x+9\right)\quad:\quad x=\frac{1}{10}\quad\left(\mathrm{Decimal}:\quad x=0.1\right)$
3\left(1-2x\right)=\frac{1}{4}\left(6x+9\right)
$3\left(1-2x\right)$
$\mathrm{Apply\:the\:distributive\:law}:\quad\:a\left(b-c\right)=ab-ac$
$a=3,\:b=1,\:c=2x$
$=3\cdot\:1-3\cdot\:2x$
=3-6x
3-6x=\frac{3}{2}x+\frac{9}{4}
3-6x-3=\frac{3}{2}x+\frac{9}{4}-3
-6x=-\frac{3}{4}+\frac{3}{2}x
-6x-\frac{3}{2}x=-\frac{3}{4}+\frac{3}{2}x-\frac{3}{2}x
-\frac{15}{2}x=-\frac{3}{4}
2\left(-\frac{15}{2}x\right)=2\left(-\frac{3}{4}\right)
-15x=-\frac{3}{2}
\frac{-15x}{-15}=\frac{-\frac{3}{2}}{-15}
x=\frac{1}{10}
Hope I helped
Brainliest plz
Sorry about all this work
Checker Taxi charges $4 to pick you up, plus $0.35 per mile. Smile Taxi charges $6 to pick you up, plus $0.25 per mile. a) Define a variable, and write a system of equations that represents this situation.
Answer:
Checker taxi: 4 + (0.35 x T (total number of miles))
Smile taxi: 6 + (0.25 x T)
Point P on the coordinate grid below shows the location of a stage light. A second stage light is 10 units above P. The length of each square on the grid is 2 units. What are the coordinates of the location of the second stage light?
A four-quadrant coordinate grid from negative 16 to positive 16 in increments of 2 is drawn. Point P is plotted on the ordered pair 2, negative 6.
(2, −16)
(12, 4)
(2, 4)
(12, −16)
Answer:
i believe that its the 3rd one
plz help i need 100%
Answer:
But there isn't any question :(
The table below represents a linear relationship.
x 2 3 4 5
y 4 7 10 13
What is the y−intercept?
A −2
B −4
C 3
D 2
Answer:
-2
Step-by-step explanation:
the slope is 1/3
so subtract 3 fron fhe y side of the table and 1 from the x side of the table
Luther evaluated 2³ as 9 and Wade evaluated 3² as 9. Are both students correct? Explain why or why not.
Answer:
No, Wade is correct Luther is incorrect
Step-by-step explanation:
3^2 =3*3 which is 9
2^3 = 2*2*2 which is 8
The two powers are not equal. Wade is correct, but Luther misinterpreted 2 to the power of 3 as 2 factors of 3. He switched the base and exponent. Luther’s value should be 2 times 2 times 2, which is 8.
Hope I helped
Brainliest plz
6(1 − 3d) < 2(7d + 6
Answer:
d> -3/16
Step-by-step explanation:
Answer:
\begin{bmatrix}\mathrm{Solution:}\:&\:d>-\frac{3}{16}\:\\ \:\mathrm{Decimal:}&\:d>-0.1875\\ \:\mathrm{Interval\:Notation:}&\:\left(-\frac{3}{16},\:\infty \:\right)\end{bmatrix}
Step-by-step explanation:
6-18d-6<14d+12-6
-18d<14d+6
-18d<14d+6
-32d<6
-32d<6
\frac{32d}{32}>\frac{-6}{32}
d>-\frac{3}{16}
Brainliest plz
Which is the graph of 2x + 3y > –3?
On a coordinate plane, a dashed straight line with negative slope goes through (negative 2, 0) and (0, negative 1). Everything to the left of the line is shaded.
On a coordinate plane, a dashed straight line with negative slope goes through (negative 2, 2) and (0, negative 1). Everything to the right of the line is shaded.
On a coordinate plane, a dashed straight line with negative slope goes through (negative 2, 0) and (0, negative 1). Everything to the right of the line is shaded.
On a coordinate plane, a dashed straight line with negative slope goes through (negative 2, 2) and (0, negative 1). Everything to the left of the line is shaded.
Answer: Its C
Step-by-step explanation:
On a coordinate plane, a dashed straight line with a negative slope goes through (negative 2, 0) and (0, negative 1). Everything to the right of the line is shaded. Option C is correct.
It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
It is given that the inequality is,
2x + 3y > –3
A dashed straight line with a negative slope passes between (negative 2, 0) and the graph in the coordinate plane (0, negative 1). Shaded areas around the line to the right.
Thus, on a coordinate plane, a dashed straight line with a negative slope goes through (negative 2, 0) and (0, negative 1). Everything to the right of the line is shaded. Option C is correct.
Learn more about inequality here:
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Someone answer all of these in order, please
Answer:
5. [tex]8r^{2}s[/tex]
6. [tex]10pqr[/tex]
7. [tex]30ab^{3}[/tex]
8. [tex]-4x^{5} y^{2}[/tex]
9. [tex]8m-n[/tex]
10. [tex]3xy+6x+3y[/tex]
11. [tex]19k^{2} +3k[/tex]
12. [tex]4r^{3}-10^{2}[/tex]
13. [tex]8c^{2}-5cd+3d^{2}[/tex]
14. [tex]4a^{2}b^{2}-3ab[/tex]
15. [tex]5m^{3}n^{2}[/tex]
16. [tex]6xy[/tex]
Step-by-step explanation:
i hope this helps :)
Help please brainliest too i really need help
Answer:
Step-by-step explanation:
on the second one i thinnk you have to divide
Answer:
a... slope= -2
b... slope= 1/2
c... function a= -2 function b= 0.5
d... the answer is b
Step-by-step explanation:
can i have brainliest? if you give me brainliest i will subscribe :)
10 millimeters
1 centimeter
230 millimeters
x centimeters
Answer:
x=23cm
Step-by-step explanation:
Convert first.
1cm/1cm=23cm/x cm
then cross multiply.
23*1=1*x
23=1x
x=23cm
[(u3)2]4 Simplify using the Laws of Exponents. Write each expression using a positive exponent.
Answer:
u10 is the answer
Step-by-step explanation:
multiply 3x2 then you will get six then add 6+4 that easy
Determine the domain and the range of the relation. *Type the domain and range in number form from least to greatest
Answer:
i dont understand what your asking
Step-by-step explanation:
