5.4p +13.1 = −2.6p+3.5 .
5.4p + 2.6p = 3.5 -13.1
8.0p = -9.6
p = -9.6 / 8
p = -1.2
The sum of the digits of a certain two digit number is 8. By reversing the digits the number is increased by 18. What is the number?
Calculate the variance of the following set of data.
3, 33, 303, 233, 3, 73, 83, 63
Answer:
its 12084
Step-by-step explanation:
on my test
Variance is the measurement of the spread between numbers in a given set of data.
The variance for the set is 12083.929
What is a variance?It is the measurement of the spread between numbers in a given set of data.
We have,
3, 33, 303, 233, 3, 73, 83, 63
The formula to find variance:
Find the means of the set of data.
Find the deviation of the set of data from the mean.
Find the sum of the squares of the mean deviations.
Divide the sum of the squares of the mean deviations by (n-1)
where n is the number of data in the set.
The mean:
= (3 + 33 + 303 + 233 + 3 + 73 + 83 + 63) / 8
= 794/8
= 99.25
Deviation from the mean:
3 - 99.25 = -96.25
33 - 99.25 = -66.25
303 - 99.25 = 203.75
3 - 99.24 = -96.25
73 - 99.25 = -26.25
83 - 99.25 = -16.25
63 - 99.25 = -36.25
The sum of the squares of Mean deviation:
= 9264 + 4389 + 41514 + 9264 + 689 + 264 + 1314
= 84587.5
The variance:
= 84587.5 ÷ (8 - 1)
= 84587.5 / 7
= 12083.929
Thus,
The variance for the set is 12083.929
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twice as many dimes as quarters I have a $1.80 total how many dimes do I have
Answer:
The answer is 8 dimes
Step-by-step explanation:
4 quarters x 2 = 8
8 dimes
1.00 + 0.80 = $1.80
FOR 50 OR 100 POINTS! A bag is filled with small and large marbles. The ratio of small to large marbles is 1:3. On your own sheet of paper, draw a tape diagram to represent this situation.
If there are eight more large marbles than small marbles, how many total marbles are in the bag?
Answer:
4:12
4 small
8 large
16 marbles total
Answer:
4:12
Step-by-step explanation:
What is the solution to −(6m + 8) = 4(17 − m)?
Answer:
m= -38
Step-by-step explanation:
-(6m+8)=4(17-m)
-6m-8=68-4m
-6m+4m-8=68
-2m-8+8=68+8
-2m=76
-2m/-2=76/-2
m= -38
Any help would be appreciated!
7/9+ 8/9 as a mixed number
Answer:
15/9 :))
is your answerrr
Answer:
15/9
Step-by-step explanation:
For this all you have to do is add the numerators.
So 7 + 8 = 15
The number is 15/9
Hope this helps ya!!
Can someone help me please
Answer:
x = 69
Step-by-step explanation:
x+x+(x-27) = 180
3x = 207
x = 69
Please help me out with this picture.(#3a, #3b, and #3c)
Answer:
all are in the picture I attached
Step-by-step explanation:
hope this helps
Bart wants to rent a car. The fee is $25 plus $0.55 per mile. He has budgeted $212 for the car. Write an
inequality to show how much he can spend for the car.
Answer:
25 + 0.55x ≤ 212
Step-by-step explanation:
Bart can only spend 212, hence the less than or equal to symbol. The cost of using the car must be at most 212, so 25 and 0.55x are on the same side. 0.55x represents the cost of driving an unknown amount of miles.
Can someone please find out what x is?
Answer: x = 2
Simplify and Distribute
(−5)(4x)+(−5)(−2)=(−2)(3)+(−2)(6x)
−20x+10=−6+−12x
−20x+10=−12x−6
Adding 12x both sides.
−20x+10+12x=−12x−6+12x
−8x+10=−6
Subtract 10 both sides
−8x+10−10=−6−10
-8x = -16
Then divide both sides by 8
-8x/8 = -16/8
x=2
Plzzzzz Help!!!!Find an equation for the perpendicular bisector of the line segment whose endpoints are (8,4) and (4,-4)
Answer:
y = 2x -12 to find any equation to the perpendicular line x=0
Step-by-step explanation:
find the slope to the original line using the slope formula , then take the opposite reciprocal = -1/2
Select the step in the solution that FIRST shows an error.
Step 1: 4x – 10 = 10
Step 2: 4x = 20
Step 3: 4x = 5
Step 4: X = 1.25
Step 1
Step 2
Step 3
Step 4
Answer:Step 3
Step-by-step explanation:
Select the transformations of g(x) = |- 2x + 6| in relation to the parent function.
A) Translated right 3 units
B) Translated left 3 units
C) Reflected over y-axis
D) Reflected over x-axis
E) Vertical Stretch
F) Horizontal Compression
The transformations of g(x) = |- 2x + 6| in relation to the parent function will be Translated right 3 units and Vertical Stretch. Then the correct option is A and E.
What is a function?A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.
The absolute function is given as,
y = |-2x + 6|
Simplify the equation, then we have
y = |-2x + 6|
y = 2|x - 3|
The transformations of g(x) = |- 2x + 6| in relation to the parent function will be Translated right 3 units and Vertical Stretch. Then the correct option is A and E.
More about the function link is given below.
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PLEASE I NEED HELP
Factor out the coefficient of the variable.
The expression 3/8d+3/4 factored is
Answer:
9
Step-by-step explanation:
How can you find the slope from a table?
Answer:
you find slope from a table by taking any two points. the left side is the input of the table, the x, and the right side is the output the y. whenever you're finding the points to do slope, they must be correlated.
__x__|__y__
___2_|__4___
__3__|___6__
so if you want to choose 2 for the x input then you must choose the 4 as the y output.
After choosing the two points, (2,4) and (3,6), you need to find the slope which is y-y/x-x. so in this case it's 6-4/3-2. after subtracting you get, 2/1 which if you simplify, it's 2. Or you divide which is also 2. I hope this helped.
Plz give me brainliest!
Step-by-step explanation:
Use the original price and the markup to find the retail price.
Original price: $42; Markup: 7.5%
Answer:
$45.15
Step-by-step explanation:
$42*107.5%
=$45.15
PLS GIVE BRAINLIEST
Answer:
45.15
Step-by-step explanation:
Take 100% (Original Price) and add the 7.5, Aka 107.5.
Multiply the price (42) and the percent that you just got, 107.5%.
Use the percent sign!!!
The answer then should be 45.15
determine whether the relation is a function
Answer:
Step-by-step explanation:
16). The relation is a function.
17). The relation is a function.
How do I do this? And what’s the answer??
Answer:
its asking you what the slope of the line is (rise/run) and for the point at which the line crosses the y axis (verticle line)
Step-by-step explanation:
When finding the slope you count the number of units up and the number of units across. This would be -1/1 or -1 because the graph shows a scale of 100, and the slope is going down 100, and across 100. this makes the slope negative since it's going downwards. so the slope would be -100/100 which would simplify to -1.
the y-intercept is where the line crosses the y axis. if this point is below the x-axis, then the y-intercept would be negative. in this problem however, the line crosses the y-axis at the origin (0,0)
so your equation would be y=1x+0, but simplified it would be y=x (the one isnt used because there is a single x value and the +0 is gone because it holds no value)
The ratio of boys to girls at a movie is 3:4 . If there are 16 girls , how many boys are at the movie?
Answer:
12 boys
Step-by-step explanation:
Set up a proportion: [tex]\frac{3}{4} = \frac{x}{16}[/tex] Cross multiply, then divide: 3 × 16 = 48, 48 ÷ 4 = 12I hope this helps!
Answer:
12
Step-by-step explanation:
Write the equation of the line that is parallel to the line y= 3x+ 6 and passes through the point (4, 7).
Answer:
Is this slope?
Step-by-step explanation:
Answer:
y = 3x - 5
Step-by-step explanation:
Let the equation be y = mx + c
Since the equation is parallel to y = 3x + 6, gradients of the two eqns are the same
therefore, m = 3
sub (4, 7):
7 = 3(4) + c
c = -5
therefore, equation of the line is y = 3x - 5
What are the equations of the asymptotes of the hyperbola?
[tex]\frac{(y+4)^{2} }{36}[/tex] - [tex]\frac{(x-6)^{2} }{49}[/tex] =1
Enter your answer in point-slope form by filling in the boxes. Enter the slope as a simplified fraction.
Answer:
hyperbola?
[tex]\frac{(y+4)^{2} }{36}[/tex] - [tex]\frac{(x-6)^{2} }{49}[/tex] =1
Enter your answer in point-slope form by filling in the boxes. Enter the slope as a simplified fraction.
the sum of two numbers is 52 the larger number is 4 more than 2 times the smaller number find both numbers let x be the smaller number
Answer:
Smallno. =16
Bug no. =36
Step-by-step explanation:
Y=big number
X=small number
X+Y=52
Y=2X+4
Substitute
X+2X+4=52
3X=48
X=16(small no.)
Y=36(large no.)
Checking:
36+16=52(yay correct)
36=(2*16)+4 (coorrectoo!)
Hope this helps!
Find the measure of side b. (Round the answer to the nearest whole number)
Answer:
119 inches
Step-by-step explanation:
cos 42° = [tex]\frac{b}{160}[/tex]
b = 160 × cos 42° ≈ 119 in.
A survey was conducted to see how many people ride a bus to school everyday. 160 people reported that they ride the bus to school everyday. This number represents 80% of the people surveyed how many people were surveyed.
Answer:
200
Step-by-step explanation:
160/x=80/100 find x by cross multiplying meaning 80x=16000
16000/80=x
Apples cost $1.47 per pound. Danielle buys an apple that weighs 0.62 pound. To the nearest cent, how much does Danielle’s apple cost?
Answer:
91 cents
Step-by-step explanation: Just a hunch
The amount that Danielle’s apple cost is $0.91.
Using this formula
Cost=Sales price per pound× Weight per pound
Where:
Sales price per pound=$1.47
Weight in pound=0.62 pound
Let plug in the formula
Cost=$1.47×0.62
Cost=$0.91
Inconclusion the amount that Danielle’s apple cost is $0.91.
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My last question!!!! But what does it mean? Please help!
Answer:
The First Option is Correct.
Step-by-step explanation:
[tex]d \geq 99[/tex]
4. Estimate.
12 x 11
36 x 29
84 x 27
Step-by-step explanation:
12*11=132
36*29=1044
84*27=2268
how to check the answer of x over -4 + 3 = - 7
Answer:
[tex]\frac{x}{4} + 3 = -7\\\\\frac{x}{4} = -10\\\\x = -40[/tex]
Solve for y in terms of x: 3x = 15-5y
Helppp
Answer:
Step-by-step explanation:
3x =15-5y
Add 5y and subtract 3x on both sides
5y=15-3x
y=(15-3x)/5
find the length of side BD round your answer to the nearest hundred
Answer:
The length of side BD is 4.62 units to the nearest hundredth
Step-by-step explanation:
In Δ ABC
∵ m∠ABC = 90°
∵ BD ⊥ AC
∴ AB × BC = BD × AC
∵ AB = 12 units
∵ BC = 5 units
∵ AC = 13 units
→ Substitute them in the equation above
∴ 12 × 5 = BD × 13
∴ 60 = 13 BD
→ Divide both sides by 13 to find BD
∴ 4.615384615 = BD
→ Round it to the nearest hundredth
∴ BD = 4.62 units
∴ The length of side BD is 4.62 units to the nearest hundredth