Answer:
$7.50
Step-by-step explanation:
75% of $10
=3/4×$10
=7.5
an article is marked 60% above c.p and sold at 20% discount.Find the profit percent made.
Answer:
40%
Step-by-step explanation:
Help!
What is the missing term? What is the rule? 7 1/5 , 5 13/15 , _______, 3 1/5, 1 13/15
Answer:
4 8/15
Step-by-step explanation:
The rule is subtract 1 2/6 from the number (n):
(in equation) x = n - 1 2/6
Please help me I do not understand this
If a building project takes 12 men to be completed in 54 days how many days will 9 men take to make it.
Answer:
y=72
Step-by-step explanation:
k= xy [ inverse variation]
k= 12 x 54
= 648
k= xy
648=9y
y = 648/ 9 = 72
I hope im right!!
After substituting, what is the first operation performed when evaluating 5 + (9 x minus 3) divide 2 for x = 5?
addition
multiplication
subtraction
division
Answer: multiply
Step-by-step explanation:
A microwave costs $60 it is on sale for 20% off what is the final price of the microwave
Answer:
48 dollars
Step-by-step explanation:
Simplify the following expression by combining like terms
9-12x+2x-5
Simplify the following expression by combining like terms
7x-2+3x - 10y
PLS help fast cause she going to
call my mom
Answer:
9-12x+2x-5 is -10x-4 and 7x-2+3x-10y is 10x-10y-2
Step-by-step explanation:
If the price of gas increases from $1.01 per gallon to $1.21 per gallon, what is the percent of increase
18,26,28,22,17,28,10,16,6
Find mean,median and mode
Answer:
Mean-19
Mode-28
Median-18
Step-by-step explanation:
Which equation shows the relationship between the number of laptops remaining, y,
and the day of the sale, x?
A. y=-3x + 18
B.y=3x + 18
C. y=-6x + 18
D. y=x+ 18
Answer:
pretty sure your answer is C.y=-6x+18
Step-by-step explanation:
what does anyone know what perimeter is and area to help for me friends
A street in San Francisco rises 20 feet for every 100 feet horizontally. What is the measure of the angle of elevation,
x, to the nearest degree?
Answer:
11°
Step-by-step explanation:
tan ∅ = 20/100 = 0.2
∅ = 11.31°
can someone help, please?
Answer:
No
Step-by-step explanation:
(4, 10)
y ≤ 2x + 1
To determine if (4, 10) is a solution to the inequality, we want to plug in the given values.
10 ≤ 2(4) + 1
[multiply] 10 ≤ 8 + 1
[add] 10 ≤ 9
Determine if this statement is true.
10 is greater than 9; therefore (4, 10) is not a solution to this inequality.
Hope this helps!
Answer:
No
Step-by-step explanation:
If you plug in 10 for y and 4 for x, you will get 10 ≤ 9 which is false.
the perimeter of a rectangular sticker is 40 cm. the sticker is 13 cm tall. how wide is it?
Answer:
7
Step-by-step explanation:
40-26=14
14/2=7
The coordinates of point A are (−3, 5). What are the coordinates of point B, which is a reflection of point A across the x‑axis?
Answer:
(-3, -5)
Step-by-step explanation:
Lani has 84 Lego blocks and 25% of them are red. How many red Legos does Lani have? Show/Explain your work
Answer:
21 red
Step-by-step explanation:
84 x 0.25 = 21
Answer:
21
Step-by-step explanation:
25% is basically 1/4.
Divide 84 by 4.
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What is the volume of the figure shown below?
12 in.
8 in.
3 in.
5 in.
3 in.
5 in.
A
36 in 3
B
75 in 3
с
288 in
D
363 in 3
PLSSS HELP
Show work please and correct
Answer:
[tex] - \frac{1}{2} [/tex]
its down 1 over 2 each time
which expressions are equal to 50Σn(n+6)?
Answer:
S(n)=(25/3)n(n+1)(2n+19)
Step-by-step explanation:
sum_(n=1)^k n (6 + n) = 1/6 k (k + 1) (2 k + 19)
[tex]sum_(n=1)^k n (6 + n) = (1/6) k (k + 1) (2 k + 19)\\50(1/6) k (k + 1) (2 k + 19)\\=(25/3)k (k + 1) (2 k + 19)[/tex]
This is the equation in general:
substitute n for sum from 1 to n
For sum from k to n, substitute:
S(n)-S(k-1)
Answer:
Part 1: B and D
Part 2: C
Part 3: 50575
Step-by-step explanation:
The scatter plot shows the relationship between ice cream sales and temperature at noon on that day at sea side ice cream shop. Which statements are correct?
A) The data shows one potential outlier B) The data shows a linear association C)The data shows a clustering pattern
D) The data shows a negative association E) As temperature increases ice cream sales increase
Answer:
A, B and E
Step-by-step explanation:
..............
From the given graph we have the correct statements are A, B and E.
We have given that,
The scatter plot shows the relationship between ice cream sales and temperature at noon on that day at the seaside ice cream shop.
We have to determine the statements are correct.
What is a scatter plot?A scatter plot is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data. If the points are coded, one additional variable can be displayed.
From the given graph we have the correct statements are A, B and E.
To learn more about the scatter plot visit:
https://brainly.com/question/6592115
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If a number is added to a set that is far away from the mean, how does this affect standard deviation?
Adding a number to the set such that the number is further away from the mean, will increase the SD. This is because the average distance of the numbers from the mean increases.
The Standard Deviation will increase if a new number is added to the collection that deviates more from the mean. This is due to an increase in the standard deviation of the numbers.
How the standard deviation is affected if a number is added to a set that is far away from the mean?The standard deviation demonstrates how widely things vary or diverge from the mean (mean, or expected value).
The Standard Deviation will vary if all terms in the set are multiplied or divided by the same number. The Standard Deviation will vary by the same amount.
The same number will likewise be changed for the mean. Imagine an animated, proportionate size growth for the spatter. There will be a change in the "measure of spread". The distance between each term and the mean doubles if every term is doubled, but the distance between each term also doubles, increasing the standard deviation. The Standard Deviation gets smaller if each word is divided by two.
In general, the Standard Deviation is decreased when a new number is added to the set that is extremely close to the mean. Visualize the paint spatter on the wall. Would the dispersion be more or smaller if we paint a droplet extremely near the center? – decrease because there are now relative to before more droplets at the center.
To find about the similar questions on 'standard deviation', click here:
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I need help,please help me.
Answer:
1 5/8
Step-by-step explanation:
subtract
Answer:
Step-by-step explanation:
4+7/8-3-1/4
1+7/8-(1/4)(2/2)
1+7/8-2/8
1+5/8 ft
the angle of a quadrilateral are in the ratio 1 : 2 :3 :4 if the sum of the angles of a quadrilateral is 360 degree find the measure of each angle
Answer:
Step-by-step explanation:
Let the angles of quadrilateral be
x, 2x, 3x , 4x
sum of all angles of quadrilateral = 360°
x + 2x + 3x + 4x = 360°
10x = 360°
x = 360/10 = 36°
Ans. the four angles are :-
x = 36°
2x = 2 × 36 = 72°
3x = 3 × 36 = 108°
4x = 4 × 36 = 144°
Answer:
Step-by-step explanation:
Let the angles of quadrilateral be
x, 2x, 3x , 4x
sum of all angles of quadrilateral = 360°
x + 2x + 3x + 4x = 360°
10x = 360°
x = 360/10 = 36°
Ans. the four angles are :-
x = 36°
2x = 2 × 36 = 72°
3x = 3 × 36 = 108°
4x = 4 × 36 = 144°
Quotient of a number and 3 increased by -7 Equals negative 144
Answer:
x = -411
Step-by-step explanation:
Number = x
Quotient of a number and 3 : [tex]\frac{x}{3}[/tex]
(x/3) increased by (-7) : [tex]\frac{x}{3}+ (-7)[/tex]
[tex]\frac{x}{3} -7 = - 144\\\\\frac{x}{3}= -144 + 7\\\\\frac{x}{3}= -137\\\\x = -137*3[/tex]
x = - 411
Answer:
-411
Step-by-step explanation:
x / 3 + -7 = -144
x / 3 = -144 + 7
x = -137 x 3
x = -411
Hope that helps!
2p+3(p-I) for p=2 please tell me the answer urgent
Answer: I dont know if that is an "I" or a "1" but if it is an "I" the answer is "16-3i" but if is a "1" its 7
Step-by-step explanation:
What is the angle measure of each angle (2x) degrees and x degrees
Answer:
x = 30
2x = 60
Step-by-step explanation:
2x + x = 90
3x = 90
x = 30
2(30) = 60
Item 9 Write an equation that you can use to find the value of x. Perimeter of triangle: 16 in.
Answer:
16 = 3x
Step-by-step explanation
Find the diagram attached.
Perimeter = sum of all its sides
Sum of all its sides= x+x+x
Sum of all its sides = 3x
Given perimeter = 16in
Equating both;
3x = 16
x = 16/3
x = 5.33in
Hence the value of x is 5.33 and the required equation is 16 =3x
need help, tyyyyyyyy
Answer:
$30
Step-by-step explanation:
s = shorts
t = tshirts
s + 2t = 60
s + 3t = 75
s + 2t = 60
rewrite
-2t -2t
s = 60 - 2t
s + 3t = 75
plug in
(60 - 2t) + 3t = 75
solve
60 - 2t + 3t = 75
60 + t = 75
-60 -60
t = 15
s + 2t = 60
plug in
s + 2(15) = 60
s + 30 = 60
-30 -30
s = 30
Factor this expression completely. 17x − 51y − 17 A) −17(x − 3y − 1) B) 17(x − 3y + 1) C) 17(x − 3y − 1) D) 17(x − 3y − 2)
Help me pls djejefjcskaeddn
Answer:
Step-by-step explanation:
1 Yes they are right angles, it is a right angle because you solve it with a Sine equation
2 the hypotenuse is the longest side
3. If the squares of the two shorter sides add up to the square of the hypotenuse, the triangle contains a right angle.