x : y = 5 : 3
and
x + y = 56
Work out the value of x - y
Answer:
14
Step-by-step explanation:
x / y = 5 / 3, then 3x = 5y , x = 5/3y
we can type 5/3y instead of x ;
5/3y + y = 8/3y = 56, then y = 21
.
now let's find x ;
x - 21 = 56, then x = 35
x - y = 35 - 21 = 14
Step-by-step explanation:
pleases try to understand this the second photo is the first, thanks
Martin is interested in the effects of different kinds of instruction on videogame performance. Martin asks 30 college freshmen to each play 1 hour of Ratchet and Klank. Participants are randomly assigned to one of three instruction groups: (1) complete the tasks as quickly as possible, (2) conserve as much health as possible (i.e., play more carefully), or (3) find gold bolts (worth lots of money in equipment and ammunition). Obviously, even in a single instruction group, not all players will obtain the same final score. These differences in an instruction group reflect:
Answer:
Between - groups variance
Step-by-step explanation:
From the question we see that the college freshmen are assigned to one of the three given groups. This means that they are exposed to different experimental conditions and thus it means that the variation differs as a result of different experimental conditions between the groups.
Thus, these differences reflect between - group variance.
PLZ HELP EMERGENCY!!Find the total area of the figure below. Round your answer to the nearest tenth.
Answer:
area = 63.25 m²
Step-by-step explanation:
area of triangle = 1/2 x 6 x 8 = 24 m²
area of semi circle = 1/2 x 3.14 x 5² = 39.25 m²
total area = 24 + 39.25 = 63.25 m²
Simplify the product. Write the answer in standard form.
(9 − 2t2)(9 + 2t2)
Answer:
-4t^4+81
Step-by-step explanation:
(9-2t^2)(9+2t^2)
−4
Elena thinks length BC is 16.5 units. Lin thinks the length of BC is 17.1 units. Do you agree with either of them? Explain or show your reasoning.
Answer:
Option D, I agree with neither Elena nor Lin
Step-by-step explanation:
The remaining part of the question is attached herewith
Solution
As we can see in the image
ED is perpendicular to AB and BC is perpendicular to AB
Thus, as per the Pythagoras theorem,
AC^2 = AB^2 + BC^2
14^2 = 6^2 + BC^2
BC^2 = 196-36 = 160
BC = 12.649 OR 12.65
Hence, option D
I agree with neither Elena nor Lin
2x + 19 and x + 23 are alternate exterior angles. What is the value of x? *
A value of x of 4 guarantees that the angles 2 · x + 19 and x + 23 could be alternate exterior angles highlighted between two parallel lines.
How to solve a linear equation
If two angles are alternate exterior, then both angles have the same measure. Thus, we have the following expression:
2 · x + 19 = x + 23 (1)
Now we proceed to solve for x:
x = 4
A value of x of 4 guarantees that the angles 2 · x + 19 and x + 23 could be alternate exterior angles highlighted between two parallel lines.
To learn more on linear equations: https://brainly.com/question/14695009
#SPJ1
Please help!! Will give BRAINLIEST!!!!
Answer:
domain is all real numbers except -6
Step-by-step explanation:
Answer:
domain is all real numbers except -6
Step-by-step explanation:
What is the slope of the line?
Answer:
the slope is 7/4
Step-by-step explanation:
3. Which choice below is an approximate volume of oil that the tank
below can hold?
78 ft. **
25 ft.
OIL TANK
*WHAT IS THE ANSWER*
Answer: the answer is 119,459ft lol
Step-by-step explanation:
I sacrificed my own score to get a result for the correct answer
Ron earned 13200 in interest on an account with a principal amount of 24000 and an interest rate of 11%. How long were the funds in the account?
Answer:
5 yearsStep-by-step explanation:
It is assumed the interest is simple.
Use the interest formula:
I = PrtWe have:
I = 13200P = 24000r = 11% = 0.11Substitute values and solve for t:
13200 = 24000*0.11t13200 = 2640tt = 13200/2640t = 5 yearsHELP ASAP IXL PLZ HELP
x=1? How to find coordinates::(
Answer:
Q'(1, -5)
R'(1, 1)
S'(5, -5)
Step-by-step explanation:
Since you're reflecting deflecting across x equals to 1 ,also our Q and R Coordinates are on the line x equals to 1 so it's going to stay same only the S coordinates would change. the X value for the coordinates gonna be +ve and Y value gonna be -ve. Because after the reflection of the point the point would lie in the fourth quadrant and in the Forth quadrant Xvalue is positive and Y value is negative.
The vertices of a square ABCD are labelled anti-clockwise. A and C are the vertices of an equilateral triangle AEC, whose vertices are also labelled anti-clockwise
Answer:
Sorry, I don't think there's enough information to solve the problem.
Step-by-step explanation:
Well, there's no numbers to say what the measures of the vertices are. Also, it seems like the question got cut out because the second sentence is incomplete.
2. A six sided cube was rolled. What is the probability of showing an odd number?"
2 points
10%
30%
50 %
1%
Answer:
50 % since there are 3 odd numbers on a die [1.3.5] and 3 even numbers [2,4,6]
Step-by-step explanation:
Answer:
50
Step-by-step explanation: PLZ MARK BRANILIST
1 3 5 are odd numbers
2 4 6 are even
so it will be like half and a half
please help me i love u
Answer:
It’s A.
Step-by-step explanation:
Find the area please
Answer:
The area of the trapezoid you have provided is 24.6
Step-by-step explanation:
The area of a trapezoid is :
[tex]0.5h(b_1 + b_2)[/tex]
Just do some substitution:
[tex]0.5 * 6 * (2 + 6.2) = 3 * 8.2 = 24.6[/tex]
A square has a side length of 12 cm. Which of the following is closest to the length of its diagonal? A) 9 cm B) 12 cm C) 12v 2 cm D) 24V3 cm 12 VT Fora
Find the value of x.
Answer:
X = 55
Step-by-step explanation:
The angles have the same degrees, as they intersect at one point.
15 points and brainliest any tips on this homework to get my grade from a 60 to a 70 all help is appreciated!!!
Answer:
I don't see anything I could try to help you with.
A quality control inspector at a clothing manufacturer
Quality control inspectors monitor quality standards for nearly all manufactured products, including foods, textiles, clothing, glassware, motor vehicles, electronic components, computers, and structural steel. Specific job duties vary across the wide range of industries in which these inspectors work.
Which statement is true?
Answer:
B is the correct answer
Step-by-step explanation:
Please help! I will give Brainliest!
Who is correct?
Answer:
Eric is correct; side must be between 4 and 16 inches
Step-by-step explanation:
triangle inequality theorem:
6 + 10 > x; 16 > x
x + 6 > 10; x > 4
4 < x < 16
x2 = 0 has how many solutions
Answer:
Infinite solutions
Step-by-step explanation:
This question seems a little weird, when you have x^2 = 0 and put it into a graphing calculator, it seems to look like a never ending vertical line. So I believe it should be infinite.
I will give braillents The price of bananas can be found using the equation: P = $0.59n, where P is the price and n is the number of pounds of bananas. What is the constant of proportionality?
Group of answer choices
$0.50
$0.59
$1.18
$1.00
Answer: $0.59
Step-by-step explanation: constant of proportionality is the number by the variable
A teacher asks five different students to write an equation with a solution of x = 4. The students and their equations are shown below.
Student Adrian Bert Camille Daniel Etsuko Equation 2x + 6 = 2 2x-9 = -1 - 2x + 12 = 4 2(x + 2) = 10 2(x - 10) = -12
Which of the following students correctly wrote an equation with x = 4 as the solution? Select three that apply.
A. Bert
B. Daniel
C. Etsuko
D. Adrian
E. Camille
Answer:
I'm assuming the order corresponds the student to the equation. Because of this, the answer is simple:
Bert, Etsuko, and Camille.
Step-by-step explanation:
2x-9=-1, 2x=8, x=4
2(x-10)=-12, x-10=-6, x=4
-2x+12=4, -2x=-8, x=4
M is 5 .....plsss help I need emergency help
.......I will mark you as brainlist
Answer:
100
Step-by-step explanation
5^2=25 25x4=100
The graph of f(x) and g(x)=f(x) + k is shown on the coordinate plane.
k = _ ?
Answer:
k = 10
Step-by-step explanation:
f(x) has been moved up 10 units to get g(x). So, k = 10
One angle of a right measures 79°. What is the measure of the other acute angle?
Answer:
11
Step-by-step explanation:
Sum of all angles = 180
Right angle = 90
Acute angle = 79
90+79 =169
180 -169 = 11
Answer:
11 degrees
Step-by-step explanation:
a right angle = 90 degrees
90-79=11 degrees
What do. Rectangles have in common choose all the correct answers
Answer: rectangles all have two parralel sides and all they all have 4 right angles.
Step-by-step explanation:
what is this equation ?
4008 - 1759
Answer:
The equation to this problem is 2,249
Answer:
the answer
Step-by-step explanation:
2249 OR
2,249 ;)))
i really need help!!!
Jason, Lewis, and Nora will be placed in a line along with 7 other people.
What is the probability that they will be next to each other in any order?
Give percentage
Answer:
[tex]Pr = 6.67\%[/tex]
Step-by-step explanation:
Given
[tex]n = 10[/tex] i.e. 10 people
Required
Probability of being next to each other
First, we calculate the total possible arrangements (without any restriction)
[tex]Total = n![/tex]
[tex]Total = 10![/tex]
If the three are to be next to each other,
First, we arrange the three
[tex]r_1 = 3![/tex]
Now, the 3 will be seen as 1; so, we have a total of 8 people i.e. (1 + 7 others)
The arrangement is:
[tex]r_2 =8![/tex]
So, the total arrangement, when they have to be next to one another is:
[tex]r = r_1 * r_2[/tex]
[tex]r = 3! * 8![/tex]
The probability is:
[tex]Pr = \frac{r}{n}[/tex]
[tex]Pr = \frac{3! * 8!}{10!}[/tex]
Expand
[tex]Pr = \frac{3*2*1 * 8!}{10*9*8!}[/tex]
[tex]Pr = \frac{3*2*1}{10*9}[/tex]
[tex]Pr = \frac{6}{90}[/tex]
[tex]Pr = 0.0667[/tex]
Express as percentage
[tex]Pr = 0.0667 * 100\%[/tex]
[tex]Pr = 6.67\%[/tex]