Answer:
120
Step-by-step explanation:
Answer:
30 times ?
let no be x
30×x=30x
30×4=120
there are 250 chairs and 150 chairs are full what is the percentage of occupied chair what is the percentage of non occupied chair
Answer:
What is p% of x?
What is
150
%
of
250
?
y =
375
what is p% of x? formula
Step-by-step explanation:
Find the area of the triangle shown
30 mm
14 mm
13 mm
(The figure is not to scale.)
The area of the triangle is ?
Answer:
91
Step-by-step explanation:
the formula for a triangle is base x height divided by 2
so the base is 13 and the height is 14
multiply 13 and 14 then divide by 2
13 x 14 = 182/2= 91
Before radar and sonar, sailors would climb to the top of their ships to watch for land or changes in weather. If the lookout at the top of the mast can see an island five miles away, about how tall is the mast? Round your answer to the nearest whol number if necessary. Use the formula for the relationship between height (h) and visibility, how far you can see, (d): d = 5/6 h
Answer:
36
Step-by-step explanation:
Find a quadratic polynomial with integer coefficients which has x = 2/9, ± SQRT23/9 as its real zeros.
Answer:
The quadratic polynomial with integer coefficients is [tex]y = 81\cdot x^{2}-36\cdot x -19[/tex].
Step-by-step explanation:
Statement is incorrectly written. Correct form is described below:
Find a quadratic polynomial with integer coefficients which has the following real zeros: [tex]x = \frac{2}{9}\pm \frac{\sqrt{23}}{9}[/tex].
Let be [tex]r_{1} = \frac{2}{9}+\frac{\sqrt{23}}{9}[/tex] and [tex]r_{2} = \frac{2}{9}-\frac{\sqrt{23}}{9}[/tex] roots of the quadratic function. By Algebra we know that:
[tex]y = (x-r_{1})\cdot (x-r_{2}) = x^{2}-(r_{1}+r_{2})\cdot x +r_{1}\cdot r_{2}[/tex] (1)
Then, the quadratic polynomial is:
[tex]y = x^{2}-\frac{4}{9}\cdot x -\frac{19}{81}[/tex]
[tex]y = 81\cdot x^{2}-36\cdot x -19[/tex]
The quadratic polynomial with integer coefficients is [tex]y = 81\cdot x^{2}-36\cdot x -19[/tex].
Find L if A=LW, A=55 m2, and W=11 m.
Answer:44
Step-by-step explanation:subtract 55-11 which would equal L
Answer:
If you are multiplying L*W the answer would be 5 because w=11 ok and we don't know what L is but we know what A is and a=55 so you have to think what do we multiply 11 by to get 55 weel it's 5 so that's how we would know it's 5 IF you were multiplying. now if you just adding L+W that answer would be 44 because 55-11=44
Hope this helped:)
Divide
f)(4b²+13b + 21) ÷(b+8)
(PLEASE ANSWER FOR BRAINILEST ASAP!!) (EXPLAIN!!) 3 boxes all way the same amount. All together they weigh 54.3 pounds. How much does 1 box weigh?
Answer:
Step-by-step explanation:
Let B = the weight of box B
Let 2B = the weight of box A
Let 2B + 30 = the weight of box C
B + 2B + 2B + 30 = 640
5B = 610
B = 122 pounds, weight of box B
2B = 2(122) = 244 pounds, weight of box A
2B + 30 = 2(122) + 30 = 274 pounds, weight of box C
Aubrey has a new art box in the shape of a rectangular rectangular prism. The box is 12 cm space, by 20cm, 5 cm the only thing in the art box is a new pink eraser with the dimensions shown below. What is the volume of the art box not taken up by the eraser?
Answer:
By an online search, I've found that the dimensions of the eraser are:
4cm by 2cm by 0.5cm
First, we need to remember that for a rectangular prism of length L, width W, and height H, the volume is:
V = L*W*H
We know that the measures of the box are:
12cm by 20cm by 5cm
Then we can define:
L = 12cm
W = 20cm
H = 5cm
Then the total volume of the box is:
V = 12cm*20cm*5cm = 1200 cm^3
For the eraser, we will have:
L = 4cm
W = 2cm
H = 0.5cm
Then the volume of the eraser is:
v = 4cm*2cm*0.5cm = 4 cm^3
The volume of the box that is not taken up by the eraser is equal to the difference between the volume of the box and the volume of the eraser.
Then:
Volume not taken by the eraser = V - v = 1200cm^3 - 4cm^3 = 1196cm^3
The dimensions of a triangle are multiplied by 1S_4.Thearea of the smaller triangle can be found by multiplying the area of the original triangle by what number?
Answer: 16
Step-by-step explanation:
This explanation is all based on the fact that I read 1S_4 as 1/4 which is the most sensable assumption.
let b be base and h be height of the triangle
if each b and h is divided by 4
=> b/4 and h/4
using triangle area formula
1/2 x b/4 x h/4 = (bh)/32
the original triangle
=> 1/2 x b x h = (bh)/2
(bh)/32 x (something) = (bh)/2
that something is
(bh)/32/((bh)/2) = 16
Or
you could use the fact that the ratio of sides of those two triangles is 1 to 4 and because we are comparing the ratio of the area 1^2 to 4^2 which results in a 1 to 16 ratio which simply means you just have to multiply the smaller triangle by 16.
y = -4.r - 2
4x - 2y = -8
Answer:
if it is thren true (???) you gots to be more specific...pls)
Step-by-step explanation:
is this a trues or false satement
I need help with this
What is the percentage of 18.50?
Answer:
18.5
Step-by-step explanation:
Answer:
100% until the question is incomplete
6x + 6y=-6
5x + y=-13
Answer:
(-3, 2)
x=-3, y=2
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation. and thats how you get your answer :)
The value of x is -3 and value of y is 2.
The given equations are:
6x + 6y=-6 ..(1)
5x + y=-13...(2)
From equation (2)
y=-13+5x..(3)
Plug in equation in equation (1):
6x + 6(-13+5x)=-6
6x-78+30x=-6
24x=-72
Divide both sides by 24:
x=-72/24
x=-3
Now put x=-3 in equation (2):
5(-3) + y = -13
-15 + y = -13
y = -13 + 15
y = 2
Hence, the value of x is -3 and value of y is 2.
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HURRY FAST PLEASEEE I NEED IT SOON
Answer: 2/7, 2 : 5, 2 to 5
Step-by-step explanation:
7 is the total
5 is white
2 is grey
2/7 is 2 out of 7 since 2 is grey
2 : 5 is 2 grey for 5 white
2 to 5 is the same thing as 2 : 5
Can someone tell me were I went wrong?
A different camera is selling for $7.50 off the regular price. It was discounted 15%. What was the original price of the camera?
A)$112.50
B)$75.00
C)$50.00
D)$45.00
Answer:
C) $50.00
Step-by-step explanation:
$7.50 is the 15% discount
1% of the original price would be ($7.50 / 15)=0.50
100% of the original price would be 100 x 0.50 = $50.00
Which of the following scenarios represents a possible impulse purchase?
Tim budgets for his scooter and decides to purchase the scooter through a dealership offering 0% interest to first time buyers.
Tim purchases the scooter of his dream by financing the entire cost of the scooter with a high interest bank loan.
Tim researches interest rates on the purchase of a new scooter before deciding against making the purchase.
Tim researches interest rates on the purchase of a new scooter before deciding to make a purchase.
Answer:
Tim purchases the scooter of his dream by financing the entire cost of the scooter with a high interest bank loan.
Step-by-step explanation:
I had the same question and got it correct. Hope I helped. :)
Answer:
Tim purchases the scooter of his dream by financing the entire cost of the scooter with a high interest bank loan.
Step-by-step explanation:
He did not weigh all the assets
3 time 4 divided by 6
Answer:
the awnse is 2 i hope i helped
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
3 x 4 / 6
3 x 4 = 12
12 / 6 = 2
PEMDAS
M - multiplication
D - division
Multiplication comes before division.
12 cupcakes for $29
24 cupcakes for $56
50 cupcakes for $129
Which option gives the lowest unit price?
Answer:
29/12=2.41666667
..................=2.33333333
.......................=2.58
second
Step-by-step explanation:
The trapezoid shown is divided into a right triangle and a rectangle.
Answer:
Step-by-step explanation:why is the trapezoid separated into a triangle and a rectangle
PLS HELP I RLY NEED IT
If the sin 30º = 1/2
then which statement is true? (6 points)
a. cos 150° = 0, because the cosine and sine are supplements
b. cos 60° = 0, because the cosine and sine are complements
c. cos 150° = 1, because the cosine and sine are supplements
d. cos 60° = 1/2, because the cosine and sine are complements
Because sine and cosine are complements, we will have that:
cos(60°) = 1/2.
Which statement is true?First, because cosine and sine are complements, we know that:
cos(x) = sin(x + 90°).
cos(90° - x) = sin(x).
We will use the second relation, with x = 30° we can write:
cos(90° - 30°) = sin(30°)
cos(60°) = sin(30°)
And we know that sin(30°) = 1/2
Then we also have cos(60°) = 1/2.
So the correct option is d.
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Answer:
D- cos 60° = 1/2, because the cosine and sine are complements
Step-by-step explanation:
Got it right on test:)
1/3 x (15 + 6) = ??????????????
Answer:
10[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\frac{1}{3}[/tex]×(15+6)=
[tex]\frac{1}{3}[/tex]×(31)=
[tex]\frac{1}{3}[/tex]×[tex]\frac{31}{1}[/tex]
[tex]\frac{31}{3}[/tex]
10[tex]\frac{1}{3}[/tex]
PLS HELP. I dont understand math
Answer:
a) 2 + 1 = 3
4 + 2 = 6
6 + 3 = 9
b) Yes
c) Yes, since you are adding b to two b, which results in 3b
Step-by-step explanation:
Hope that helps!
How do I solve this equation step by step?
Answer:
Step-by-step explanation:
answer=
5x+1=6
5x=6-1
5x=5
x=1
Square root of 1 is 1
Answer:
√5x+1 = 6
(√5x+1)2 = (6)2
5x+1 = 36
5x -35 = 0
Add 35 to both sides
5x = 35
Divide both sides by 5
solution is :
x = 7
Step-by-step explanation:
si no saben no contesten
A rectangle has side lengths of (7.5a - 1.5b) cm, (3,5a + 4.5c) cm, and (6.5C + 2a) cm, and (8.50 -6.5c). Which expression represents the perimeter, in centimeters, of the
rectangle?
Answer:
Step-by-step explanation:
our lengths are:
7.5a-1.5b, 3.5a+4.5b, 6.5c+2a, 8.5-6.5c
P=7.5a+3.5a+2a-1.5b+4.5b+6.5c-6.5c+8.5=16a+3b+8.5
In the figure below, ADBE is the result of a dilation of AABC with point B as the
center of dilation.
Which statement best uses this information to explain why the AA criterion can be
used to prove AABC ~ ADBE?
Answer:
Step-by-step explanation:
the answer is C
In this diagram, the measure of
Answer:
2x - 60 = 180
Step-by-step explanation:
Angles RQS and PQS form a linear pair, so they are supplementary.
The sum of their measure is 180°.
Both angle measures are unknow, so let's use x for the measure of <PQS.
The measure of angle RQS is 60° less than the measure of <RQS, so it is
x - 60
Now we add the measures and set the sum equal to 180.
x + x - 60 = 180
Combine like terms on the left side.
2x - 60 = 180
Answer: 2x - 60 = 180
Use these graphs to solve the simultaneous equations 5x-9y = -46
y = -2x
Answer:
(-2, 4)
Step-by-step explanation:
In the first equation substitute -2x for y, obtaining: 5x - 9(-2x) = -46
Then 5x + 18x = -46, or 23x = -46, resulting in x = -2
Since y = -2x, y = -2(-2) = 4
The solution is (-2, 4)
The value of x coming is -2 and the value of y=4 by plotting the equations 5x-9y=-46 and y=-2x.
What is a equation?
A statement that the values of two mathematical expressions are equal.
How to plot graph of an equation?
First we have to find the values of x and y as we can see in the figure1.
By plotting these points we can make graph of both the equations and the intersection point will be the solution of these equations.
Blue line is the line of the equation 5x-9y=-46 and the green line is the line of the equation y+2x=0
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what is 3/8 divided by 4/5
The answer you are looking for is 15/32.
To find this answer, you must first find the Least Common Denominator. The least common denominator of these 2 fractions can be found by simply multiplying the 2 given denominators together. 5 * 8 = 40.
Now that you found the LCD, you can start to solve the equation. To get 40 as the denominator for 3/8, you multiply the fraction by 5/5.
3/8 * 5/5 = 15/40.
To get 40 as the denominator for 4/5, you multiply it by 8/8. 4/5 * 8/8 = 32/40.
Finally, you divide 15/40 by 32/40. The denominators cancel out, so the numerator becomes 15 and the denominator now becomes 32.
So your answer is 15/32 (which cannotbe simplified)
I hope this helps!!
A clothing store manager uses a 12 percent markup on the merchandise. At what price will he sell pants that were purchased for $40?
Answer:
$44.80
Step-by-step explanation:
