Answer
4 x - 1 equals 3x and 2x plus 4 equals 6x
Step-by-step explanation:
hope this helps :)
Henry was thinking of a number. Henry adds 6 to it, then doubles it and gets an answer of 99.2. What was the original number?
Answer:
87.2
Step-by-step explanation:
Answer:
46.6.
Explination:
99.2 - 6 is 93.2. 93.2 divided by 2 is 46.6.
Lesley purchased 5 beads at a total cost of 80 cents. The round beads cost 15 cents each, and the oval beads cost 20 each. The equations and graph below can be used to determine the number of each type of bead kesley purchased. Where x represents the number of round beads and y represents the number of oval beads. What are the numbers of round and oval beads Kelsey purchased?
Answer:
Lesley purchased 1 oval bead and 4 round beands.
Step-by-step explanation:
Given that Lesley purchased 5 beads at a total cost of 80 cents, and the round beads cost 15 cents each, and the oval beads cost 20 each, to determine what are the numbers of round and oval beads Kelsey purchased, the following calculation must be performed :
5 x 0.20 + 0 x 0.15 = 1
4 x 0.20 + 1 x 0.15 = 0.95
2 x 0.20 + 3 x 0.15 = 0.85
1 x 0.20 + 4 x 0.15 = 0.80
Therefore, Lesley purchased 1 oval bead and 4 round beands.
Eugene has three six‐sided dice that he rolls simultaneously. The faces of the dice
contain these letters:
Die #1: A B C D E F
Die #2: G H I J K L
Die #3: M N O P Q R
a. What is the probability that he will roll three vowels? (3 points)
b. What is the probability that he will roll the word DIP?
Answer:
a. The probability is 1 of 108 that he will roll 3 vowels
b. the probability is 1 of 216 that he will roll the word DIP.
Step-by-step explanation:
a. find the 3 chances and multiply
2/6 x 1/6 x 1/6 = 1/108
b. Find the 3 chances of each letter of DIP and multiply
1/6 x 1/6 x 1/6 = 1/216
Hope this helps! (PLS GIVE BRAINLIEST)
One out of every five students in this class has an A. What percent of the students have an A?
What is g(x)=-5x+3 if “x” is 9
Answer:
-40
Step-by-step explanation
-5(9)+3 =
-43+3 = -40
x divided by 6 plus 11 = 14
show steps
what is x
Answer:
x=18
Step-by-step explanation:
[tex] \frac{x}{6} + 11 = 14[/tex]
[tex] \frac{x}{6} = 3[/tex]
x=6×3
x=18
plz mark as brainliest
to 43. The height of a television varies directly with its
8 width. If a television has a height of 27 inches
and a width of 48 inches, identify the constant of
ne variation and write an equation to represent the
relationship
cof
Answer:
The answer is 29.
Step-by-step explanation:
9. Fill in the blanks
() The measure of the amount of space occupied by a solid is called its
(b) Volume of bod
c) Voorbe
The measure of the amount of space occupied by a solid is called its volume.
- Find the value of x. If necessary, round to the nearest tenth.
A = = 53 sq. in
Answer:
10.3
Step-by-step explanation:
Area of triangle is : 0.5 *base * height
53 =0.5 * x * x
X =10.295
Solve the equation of 4y=20 then find the value of y?
Answer:
y=5
Step-by-step explanation:
Answer:
4y=20
y=20/4
y=5
Step-by-step explanation:
Hope this helps u!!
What is the unit of measurement for volume? a. units c. cubic units b. units squared d. centimeters
Answer:
la alianza b valorarlo Lampazos puntualizó
What is the slope of the line through the points (-8, 4) and (4, 4)?
Answer:
slope=0
hope this helps
have a good day :)
Step-by-step explanation:
I need the answer fast pls
Answer:
the answer would be none because there is only one of each number
Step-by-step explanation:
Ellen made 900 cupcakes for a fundraiser. She can make 50 cupcakes in an hour. She works on the cupcakes for 6 hours a day. How many days did she work on the cupcakes?
Answer:
3 days
Step-by-step explanation
50 multiplied by 6 is 300 cupcakes a day. 900/300= 3
A firefighter is on the fifth floor of an office building. She needs to throw a rope into the window on the seventh floor, 40 feet above her. If she throws the rope upward with an initial velocity of 36 ft/s, will the rope get to the window.
Answer:
no, it wont
Step-by-step explanation:
2g.h = v²
2(33)(40) = v²
2640=v²
v=√2640 = 51.38 ft/s
36 < 51.38
so, the rope will not get to the window
Consider the following data that represents gas mileages per gallon (mpg) of randomly selected cars of a particular brand.
28 32 23 28 24 36 31 34 25 28 29 23 25
A researcher wants to test whether the average gas mileage of this type of car is different from 30 mpg. Compute the p-value.
Answer:
The p-value is 0.1228.
Step-by-step explanation:
Before testing the hypothesis, we need to find the sample mean and the standard deviation.
Sample of 13:
The sample mean is the sum of all values divided by 13. Using a calculator, it is: X = 28.15.
The sample standard deviation is the square root of the division of the sum of the differences squared between each value and the mean, by the number of values. Using a calculator, we get s = 4.0162.
A researcher wants to test whether the average gas mileage of this type of car is different from 30 mpg.
At the null hypothesis, we test if the average gas mileage is of 30 mpg, that is:
[tex]H_0: \mu = 30[/tex]
At the alternate hypothesis, we test if the average is different from 30, that is:
[tex]H_1: \mu \neq 30[/tex]
The test statistic is:
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, s is the standard deviation and n is the size of the sample.
30 is tested at the null hypothesis:
This means that [tex]\mu = 30[/tex]
From the sample:
[tex]X = 28.15, s = 4.0162[/tex].
Value of the test-statistic:
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
[tex]t = \frac{28.15 - 30}{\frac{4.0162}{\sqrt{13}}}[/tex]
[tex]t = -1.66[/tex]
P-value of the test:
The p-value of the test is the probability that the sample mean differs from 30 by at least |28.15 - 30| = 1.75, which is a two-tailed test with t = -1.66 and 13 - 1 = 12 df.
Using a t-distribution calculator, this p-value is 0.1228.
Mathematics question
Step-by-step explanation:
area of rectangle (a1)=b×h
20×30600in²area of triangle=1/2 ×b×h
1/2×40×30600in²total area of arrow=a1+a2
600+6001200in²stay safe healthy and happy.Answer:
Step-by-step explanation:
You will find authentic some of the areas of 3 shapes, two of them are triangles, and one is rectangle.
The formula for calculating the area of right angle triangle is A= 1/2bh
The formula used to find the area of rectangle is A= W×L
A1+A2+A3
= 1/2b1h1+ 1/2b2h2+ W×L
1/2(10inches)(30inches)+ 1/2 (10 inches)(30 inches)+ (30 inches)(20 inches)
=150 inches²+ 150 inches²+ 600inches²
=900 inch²
Solve for x. please help as fast as possible
Answer:
x=6
Step-by-step explanation:
Answer:
Hello There!!
Step-by-step explanation:
6x=36
÷6 ÷6
x=6
hope this helps,have a great day!!
~Pinky~
Find the length of side BC.
Give your answer to 1 decimal plac
C
14 cm
58°
A
B.
Answer:
B
Step-by-step explanation:
mutiply
Find the value of x. Express your answer in simplest radical form.
Answer:
Option D
Step-by-step explanation:
GIVEN :-
Length of hypotenuse = 5 unitsLength of both the legs of the triangle = x units.TO FIND :-
Value of xFACTS TO KNOW BEFORE SOLVING :-
Pythagoras Theorem states that measure of :-
Hypotenuse² = Base² + Perpendicular²
SOLUTION :-
The triangle given in the question is a right-angled triangle. So , Pythagoras theorem can be applied in it.
[tex]=> 5^2 = x^2 + x^2[/tex]
[tex]=> 2x^2 = 5^2[/tex]
[tex]=> x^2 = \frac{5^2}{2}[/tex]
[tex]=> x = \sqrt{\frac{5^2}{2} } = \frac{5}{\sqrt{2} }[/tex]
Rationalizing the value ,
[tex]=> x = \frac{5}{\sqrt{2} } \times \frac{\sqrt{2} }{\sqrt{2} } = \frac{5\sqrt{2} }{2}[/tex]
The graph below shows the number of houses sold over x days. What is the average rate of change from day 2 to
day 102
House Sales
12
42.8)
Number of Houses Sold
(6.6)
(12.4)
0.0)
(102)
2
4
6
8
10
12
X
Number of Days
0
Answer:
a is the right anser
Step-by-step explanation:
The average rate of change from day 2 to day 10 is given by the slope of the line m =
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
The number of houses sold on day 2 is P
The number of houses sold on day 10 is Q
Let the first point be P ( 2 , 8 )
Let the second point be Q ( 10 , 2 )
Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Substituting the values in the equation , we get
Slope m = ( 2 - 8 ) / ( 10 - 2 )
Slope m = -6/8
m = -3/4
Therefore , the number of houses sold between day 2 and 10 is -3/4 houses per day
Hence , the slope is m = -3/4 houses per day
To learn more about equation of line click :
https://brainly.com/question/14200719
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The complete question is attached below :
The graph below shows the number of houses sold over x days. What is the average rate of change from day 2 to day 10
solve 1/4 n + 7 = 10 what n= ?
Answer:
n=12
Step-by-step explanation:
1/4n+7=10
n+28=40
n=12
*** PLEASE HELP ASAP!!* Kayla used a piece of cardstock with an
area of 6x^2 + 12x + 4 square units to cut
out heart shaped cards for her classmates. If
the hearts shown have a combined area of
2x^2 - 8x + 8 square units, write an expression
to represent the area of
the gray region, the unused
portion of cardstock.
SOLUTION:
HOW DO YOU KNOW?
Answer:
This should be 4x - 8x + 8
Step-by-step explanation:
Can someone help math is sum else
Answer:
B
Step-by-step explanation:
Symmetric means one side looks the same as another side such as a square. It isn't symmetric because the other side doesn't have the same side as the other so it isn't bell shaped and isn't symmetric
[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}[/tex]
B. Not symmetrical, not bell-shapedWhat is the diameter of a hemisphere with a volume of 5990in^3 to the nearest tenth of an inch?
Answer:28.4
Step-by-step explanation:
Delta Math
The diameter of the asked hemisphere is 28.38 in.
What is hemisphere?The half of a sphere is called a hemisphere.
Given that, a hemisphere with a volume of 5990 in³
Volume of a hemisphere = 2/3πr³
2/3πr³ = 5990
r³ = 5990x7x3/22x2
r³ = 125790/44
r³ = 2858.8636
r = 28.38
Hence, The diameter of the asked hemisphere is 28.38 in.
For more references on hemisphere, click;
https://brainly.com/question/24402286
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If Savannah is throwing a party but only has 18 rooms in her house and each room can only fit x people. What expression should Savannah use to find out how many people she can invite?
Answer: 18x
___________________________________
What is the solution set for this inequality?
-3x + 10 > 22
A. X >-4
B. X <-4
C. X>4
D. X <-4
Nee
Answer:
X<-4
Step-by-step explanation:
-3x+10>22
subtract 10 to both sides
-3x>12
divide by -3 on both sides
when you divide by a negative number you flip the sign so the answer will be x<-4
arrange the following decimal fractions from smallest to biggest
7,01
0,701
0,71
7,34
7,0101
71,01
7,034
Answer:
0.701, 0.71, 7.01, 7.0101, 7.034, 7.34, 71.01
Step-by-step explanation:
what is the answer to 5(10.5 + s)?
Ok so when a parenthesee or this symbol ( is beside a letter/Number, in this case 5 you multiply it by whats inside, so 5x10.5, and 5x10.5=52.5. Now for S, it would be 52.5+S.
That is your answwer, and if you wouldn't mind, could I have brainliest?
Raj builds a side table in the shape of a cube. Each edge of the cube measures 21 inches. Raj wants to cover the top and four sides of the table with ceramic tiles. Each tile has an edge length of 3 inches. How many tiles will he need?
Pls answer fast
Answer: 2000/25 = 80 tiles
Step-by-step explanation:
Date: s=20
equation of surface area of a cube prism: surface area = 6s*2
the surface area to be covered with tiles is requires, the base is not included, so the equation reduces: surface area = 5s*2
subtitute values: surface area = 5(20)*2
= 5(400)
surface area = 2000
area of 2 tile is 5*2 = 25 square inches
2000/25 = 80 tiles