What is the value of the expression shown below?
8² ÷ 16 + 2 • (-3)
-18
-2
10
-10
HELP THIS IS DUE TODAYYY
help pls fast
10. A door-frame of dimensions 3 mx 2 m is fixed on the wall of
dimension 6.5 mx 8 m. Find the area of the wall to be painted."
Answer:
1st dimension of the door frame =3m×2m
=6m squared
now dimension the wall =6.5×8m
= 52m square
area that needs to be painted =52m-6m
=46m Square
Halona walks 1.93 kilometers to a neighbor’s house in 23 minutes. Assuming she walks at a constant speed, write a proportion that represents how many kilometers,y, Halona can walk in x minutes. Then solve your proportion for y.
Answer:
proportion: 1.93/23 = y/x
solve for y: y = x(0.083913)
Step-by-step explanation:
The required relationship of the proportionality is y = 0.08 x.
Given that,
In 23 minutes, Halona travels 1.93 kilometers to a neighbor's home. assuming she moves at a steady pace.
How many kilometers, y, Halona can walk in x minutes, expressed as a proportion. After that, find y using your percentage.
The relationship between two or more sets of values—whether they are directly proportional or inversely proportional to one another—is referred to as proportionality.
Here,
according to the question,
y ∝ x
y = kx
Where k is the constant of the proportionality,
at x = 23, y = 1.93
1.93 = 23 k
k = 1.93/23
k = 0.08
Put k in the proportionality equation,
y = 0.08k
Thus, the required relationship of the proportionality is y = 0.08 x.
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How do I do this? It's about systems of equations.
Answer:
D.
Step-by-step explanation:
The last one has the correct variables and amounts in the right order.
12x + 9y = 120
6x + 14y = 136
please dont answer random stuff for points
Answer:
now how did you knew people was doing it
Step-by-step explanation:
it C trust
Answer:
The answer is 28 (option D)
Step-by-step explanation:
Im big Brain
one number is equal to 4 times another number. their difference is 12. find the numbers
Answer:
[tex]x=16 \ \ and \ \ y=4[/tex]
Step-by-step explanation:
Suppose the numbers are x and y
One number say x is equal to 4 times another number say y
[tex]x=4y[/tex] ---------------- (1)
Their difference is 12
[tex]x-y=12[/tex] ------------(2)
Put x=4y in equation (2)
[tex]4y-y=12[/tex]
[tex]3y=12\\y=4[/tex]
Put y=4 in equation (1)
[tex]x=4(4)\\x=16[/tex]
How am I supposed to do this?
For literal equations you do not necessarily need a numerical answer. You just need to get the variable you are supposed to solve for on one side of the equation by itself. To do this you will follow the same steps you do when you normally solve for x (or any other variable)
#9-Step by step
Q=25[tex]\pi[/tex]h
divide 25[tex]\pi[/tex] on both sides of the equation
Q/25[tex]\pi[/tex]=h
h=Q/25[tex]\pi[/tex]
Since his can't be simplified any further this is your answer
#11. y=7m+6
First subtract 6 over to the other side
y-6=7m
then divide the 7 over
(y-6)/7=m
m=(y-6)/7
#13 A=(Z+7)3
Divide the three over to the other side of the equation
A/3=Z+7
Now the 7 is free to be subtracted from both sides
(A/3)-7=Z
#17. (2x/5)-9=6
First add 9 to both sides
2x/5=6+9
2x/5=15
Multiply both sides of the equation by 5
2x=5(15)
2x=75
Divide by 2
x=75/2
x=37.5
Solve |2x - 3|< 7 help pls!!
Answer:
I think it is c, sorry if I am wrong.
Answer:
-2<=x<=5
Step-by-step explanation:
|2x - 3|< =7
-7<=2x-3<=7
-4<=2x<=10
-2<=x<=5
I NEED HELP FAST!!!!!!!!!!!!
Answer:
y=-3/4x-3
Step-by-step explanation:
y=mx+b
find the y intercept=b
y=mx-3
find the slope
y=-3/4x-3
What is the area of the shaded region?
24 sq cm
30 sq cm
20 sq cm
4 sq cm
Answer:
24 sq cm
Step-by-step explanation:
20 sq cm + 4 sq cm = 24 sq cm
Cameron is a high school basketball player. How many points would Cameron score
in a game if he made 6 two point shots and 5 free throws (worth one point each)?
How many points would Cameron score in a game if he made a two point shots and y
free throws?
Answer:
30 I THINK
Step-by-step explanation:
Answer 30 i hopeee
I hope that helps lol
Find the volume of the cone. Round your answer to two decimal places.
Answer:
Step-by-step explanation:
Volume of the cone, V=1/3*Π*r^2*h
we have the slant height, and we need to find the h, height
a^+b^2=c^2
where c is 13
169=25+h^2
h^2=144
h=12
V=1/3*3.14*25*12=100*3.14=314.15 ft^3
Evaluate 9 to the power of -1/2
Evaluate 9 to the power of -1/2
=> 0.05
The equivalent expression of ''9 to the power of -1/2'' would be 1/3.
Used the concept of the square root of a number that states that,
The square root of a number is the number that, when multiplied by itself, gives the original number.
Given that,
The expression is 9 to the power of -1/2.
Now, it can be written as,
9 to the power of -1/2
[tex]= 9^{- 1/2}[/tex]
[tex]= \dfrac{1}{9^{1/2} }[/tex]
[tex]= \dfrac{1}{(3^2)^{1/2} }[/tex]
[tex]= \dfrac{1}{3 }[/tex]
Therefore, the expression is written as 1/3.
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The points given in the table lie on a line. What is the slope of the line?
Answer:
the answer is A
Step-by-step explanation:
y increases by 2(rise) and x increases by 3(run), so it would be 2/3
Help me!! I’m very bad at rounding numbers!! What’s 366 rounded to the hundreds place?? help ASAP!
Answer:
400
Step-by-step explanation:
Tge 6 in the tens place is greater than 5, so you round the 3 up to 4.
If the number that determines where you round is 5 or more, round up.
So 366 rounded to the hundreds place is 400.
The answer is 400.
Happy to help!!! :)
The virus that causes the flu has a width of 0.00000013 m. Write the width of the flu virus in scientific notation.
2. What is the value of x? Show your work
Answer:
x=7
Step-by-step explanation:
Find the ratio between both triangles
jk = 25, mn = 30
multiply 20 by the ratio 1.2 to get 24
then set 24=4x-4
a student cost for last semester at her community college was $2200. she spent $308 of that on books. what % of last semesters college costs was spent on books
Answer:
We conclude that 14% of last semester's college cost was spent on books.
Step-by-step explanation:
The cost spent at community college = $2200
The amount spent on books = $308
The % of last semesters college costs was spent on books can be determined using the formula
% spent books on = [308 / 2200] × 100
= 0.14 × 100
= 14%
Therefore, we conclude that 14% of last semester's college cost was spent on books.
Find the value of p and q such that
2x^2 - 4x + 3= 2 (x-p)^2 + q
PLEASE ANSWER!!!
Answer:
The values of p and q such that 2·x² - 4·x + 3 = 2·(x - p)² + q, are;
p = 1, q = 1
Step-by-step explanation:
The given equation are;
2·x² - 4·x + 3 = 2·(x - p)² + q
By expanding the right hand side of the equation, we have;
2·x² - 4·x + 3 = 2·(x - p)² + q = 2·x² - 4·p·x + 2·p² + q
2·x² - 4·x + 3 = 2·x² - 4·p·x + 2·p² + q
Comparing the coefficient of x in both equations, gives;
2·x² + (- 4)·x + 3 = 2·x² + (- 4·p)·x + 2·p² + q
-4 = -4·p
∴ p = -4/(-4) = 1
p = 1
Comparing only the constant terms (terms not multiplied by "x" or "x²"), we get;
3 = 2·p² + q
Substituting the value for "p" obtained above (p = 1 ) in the previous equation, we get;
3 = 2 × 1² + q = 2 + q
∴ q = 3 - 2 = 1
q = 1.
On number 12 I need hell
Answer:
1,600 dollars
Step-by-step explanation:
The easiest way to solve it is to find the dollar for 1 percent.
Since 480 accounts for 30% of the whole thing, we can do 480 divided by 30 to get 16 as 1 percent. This means that 16 times 100 percent would give us the total money spent, giving us 1,600 as our answer.
Tara is graphing the equation 4x + 2y = 10. Which of these shows the correct equation in slope-intercept form, slope, and y-intercept?
Question 2 options:
y = –2x + 5
slope = –2
y-intercept = 5
y = 2x + 4
slope = 2
y-intercept = 4
y = –4x + 5
slope = –4
y-intercept = 5
y = 4x + 5
slope = 4
y-intercept = 5
Answer: y = -2x + 5
Step-by-step explanation:
y = -2x + 5
slope = -2
Slope intercept form of equation of line is given by y = mx + c
where m is the slope of line
c is the y intercept i.e point where given line intersect y axis.
________________________________________________
given equation 4x + 2y = 10
we have to re-write this equation in form y = mx + c
4x + 2y = 10
subtraction 4x from LHS and RHS
4x + 2y - 4x= 10 - 4x
2y = 10- 4x
we have to eliminate 2 from y for that we
divide LHS and RHS by 2 we
2y /2 = 10/2- 4x/2
y = 5 - 2x
rearranging it in y = mx+c form
y = -2x + 5
thus, m = -2 , c = 5
Answer:
y=-2x+5, slope= -2, y-intercept= 5 (so, first option)
Step-by-step explanation:
y=mx+b. m is the slope, and b is the y-intercept. to get the equation to the slope intercept form, you get y by itself- subtract 4x from both sides and then divide by 2 on both sides.
A theatre has the capacity to seat people across two levels, the Circle and
the Stalls.
The ratio of the number of seats in the Circle to the number of seats in
the Stalls is 3:5
Yesterday, the audience occupied of the seats in the Circle and
all the 1520 seats in the Stalls.
Work out the percentage of occupancy of the theatre yesterday.
You must show how you get your answer.
Answer:
C:S--------> 3:5
1520/5=304
3 x 304= 912
912+1520=2432
1520/2432 x 100
Ans = 62.5% seats occupied
Answer:
C:S--------> 3:5
1520/5=304
3 x 304= 912
912+1520=2432
1520/2432 x 100
Ans = 62.5% seats occupied
HELP ASAP I will mark brainliest
Answer:
option 4
Step-by-step explanation:
Find the unknown value.
40%=32/⬛️
Answer:
Step-by-step explanation:
80
help me pls...
I will give 20 points and brainly
Answer:
[tex]1 \times { 10}^{ - 9} m[/tex]
Step-by-step explanation:
It can be written in scientific notation as [tex]1 \times { 10}^{ - 9} m[/tex],
Hope this helps u.... ^_^❤️Answer:
a) 1 nm = 0. 000 000 001 m
b) 1 nm = 1×10⁻⁹ m
Will mark Brainliest! How many pounds of apples would you need to make 20 cups of applesauce?
Answer:
You would need 16 pounds of apples!
Step-by-step explanation:
The table goes up by 3 for pounds of apples so you would do 10+3 which equals 13 and then add another three to get 16! Hope this helps.
You purchase a remote-controlled drone for d dollars. Your friend purchases a drone that costs $35 more than your drone. Your brother purchases a drone that costs three times as much as your friend's drone. Write and simplify an expression that represents the cost (in dollars) of your brother's drone.
Answer:
[tex]Brother = 105 + 3d[/tex]
Step-by-step explanation:
Given
[tex]Drone = d[/tex]
Friend = $35 more expensive than yours.
Brother = 3 * as much as your friend
Required
Write an expression for the cost of your brother's drone
I'll solve by analysing the question one sentence after the other
You:
[tex]Drone = d[/tex]
Your friend:
Friend = $35 more expensive than yours.
This means
[tex]Friend = 35 + You[/tex]
Substitute d for You
[tex]Friend = 35 + d[/tex]
Your brother:
Brother = 3 * as much as your friend
This means:
[tex]Brother = 3 * Friend[/tex]
Substitute 35 + d for Friend
[tex]Brother = 3 * (35 + d)[/tex]
Open bracket
[tex]Brother = 3 * 35 + 3*d[/tex]
[tex]Brother = 105 + 3d[/tex]
How many 3/4s are in 2 ?
1 .Write a multiplication equation and a division equation that can be used to answer the question.
2.Draw a tape diagram and answer the question. Use the grid to help you draw, if needed.
Answer:
3/4 into decimal = 0.75
0.75 X 100 = 75
2 X 100 = 200
200/75 = 2.66666666
WILL GIVE BRAINLIEST PLZ HELP
Is the second image right?
(the new line is the blue one)
Answer: based on f(x) + 4 no
Step-by-step explanation:
Select the correct answer.
What is (3 1/2) absolute values
A. -2/7
B. -3 1/2
C. 3 1/2
D. -2/7
Answer:
c
Step-by-step explanation:
Answer:
C. 3 1/2
Step-by-step explanation:
The absolute value is the non negative value
|3 1/2| = 3 1/2