Answer:
Ratios are proportional if both serve the identical tie. A method to detect if a pair of ratios remain equivalent is to rewrite them being fractions, then decrease them. If the decreased fractions are equal, the ratios are comparative.
Step-by-step explanation:
Answer:
still need help?
Step-by-step explanation:
Select all the points that are on the graph of the line
-2x + 5y = -15
A(0,5)
B(0,-3)
C (-5, -1)
D (-5,-5)
E (10,-1)
F (-10,7)
Answer:
(0,-3), (-5,-5)
Step-by-step explanation:
Plug in x and y and see in which case = -15
-2(0)+5(5)= 25 no
-2(0)+5(-3)= -15 yes
-2(-5)+5(-1)= 5 no
-2(-5)+5(-5)= -15 yes
-2(10)+5(-1)= -25 no
-2(-10)+5(7)= 55 no
A rectangular prism is 1 inch long and 2 inches wide. Its volume is 12 cubic inches. What is the height of the rectangular prism?
Answer: 6 inches
Explanation:
12 = 1(2)h
12 = 2h
12 ÷ 2 = 2h ÷ 2 (isolating the H term)
6 = h
Pls pls help it's urgent!!!
Answer: number 6 is the correct one
Step-by-step
all of the facts stated on that question are true
Picture or photo frames are prepared in a workshop. How many rectangular frames measuring 15.4 cm by 3.7 dm can be produced from a metal strip 8,384 m long? Instruction: Convert all units to cm and then perform the operations.
Answer:
yepp that the answer will be correct just try ittt
Can someone help me please I don’t understand it
Answer:
C is the answer
Step-by-step explanation:
17/18 + 1/20 = 47/50 not 18/38
Teresa drives to her grandmother's house every summer. She travels 464 miles in 8 hours. At what speed does Teresa drive, in miles per hour?
Answer:
58 miles per hour
Step-by-step explanation:
464/8=58
Answer:
58mph
Step-by-step explanation:
Find the equation of the line shown.
y
10
9
8.
7
6
5
4
3
2
1
0 1 2 3 4 5 6 7 8 9 10x
if correct will mark brainliest
Answer:
y = -x + 9
Step-by-step explanation:
✔️Find the slope using (9, 0) and (7, 2):
[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{2 - 0}{7 - 9} = \frac{2}{-2} = -1 [/tex]
Slope (m) = -1
✔️Find the y-intercept (b):
The line intercepts the y-axis when y = 9. Therefore, y-intercept (b) = 9
✔️Substitute m = -1 and b = 9 into y = mx + b
Thus,
y = -1(x) + 9
y = -x + 9
Which is the best estimate of
*4
*6
*22
*33
Answer:
17,424
Step-by-step explanation:
i just multiplied it
Answer:
The answer is 4.
Please help it's easy!
Step-by-step explanation:
[tex] - \frac{1}{4} \times ( - \frac{6}{11} )[/tex]
[tex] \frac{1}{2} \times \frac{3}{11} [/tex]
[tex] \frac{3}{22} [/tex]
Answer:
3/22
Step-by-step explanation:
A submarine sits at –300 meters in relation to sea level. Then it descends 115 meters. What is its new position in relation to sea level? Negative 415 m Negative 185 m Negative 115 m Negative 100 m
Answer:
[tex]New\ Position = -415m[/tex]
Step-by-step explanation:
Given
[tex]Position= -300m[/tex]
[tex]Descend = 115m[/tex]
Required
Determine the new position
It descends means that it moved in the downward position.
So, the new position is:
[tex]New\ Position = Position - Descend[/tex]
[tex]New\ Position = -300m - 115m[/tex]
[tex]New\ Position = -415m[/tex]
Hence, the new position f the submarin is -415m
Answer:
A
Step-by-step explanation:
that guy is right
A certain ball is dropped from 204 centimeters, and has a rebound factor of 72% (The height of the ball after each bounce is 72% of the height of the bounce before.). Which equation represents the relationship between the the number of bounces, n, and height, h, in centimeters? Group of answer choices
Answer:
The equation that represents the relationship between the number of bounces and the height is [tex]H = 204\cdot 0.72^{n}[/tex].
Step-by-step explanation:
According to this exercise, we notice that maximum height of the ball ([tex]H[/tex]), measured in centimeters, is reduced at geometric rate and as a function of the number of bounces ([tex]n[/tex]), with no unit, which is defined by geometric progression:
[tex]H = H_{o}\cdot r^{n}[/tex] (1)
Where:
[tex]H_{o}[/tex] - Initial height of the ball, measured in centimeters.
[tex]r[/tex] - Bounce factor, no unit.
If we know that [tex]H_{o} = 204\,cm[/tex] and [tex]r = 0.72[/tex], then the equation that represents the relationship between the number of bounces and the height is:
[tex]H = 204\cdot 0.72^{n}[/tex] (2)
1/3(2x-4)+5 = -2/3(x+1)
Answer:
= -[tex]\frac{13}{4}[/tex]
Step-by-step explanation:
Can someone pleaseeee help if you’re correct I’ll give u brainlist
Answer:
4
Step-by-step explanation:
this is an equilateral triangle, meaning all sides and angles are the same
Solve system by using substitution show all work please quickly
x + y = 2
y = 5
Answer:
(-3, 5)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define Systems
x + y = 2
y = 5
Step 2: Solve for x
Substitute in y: x + 5 = 2Isolate x term: x = -3Jack and Jill start driving from the same location. Jack drives 30 miles south while Jill drives west. If Jack and Jill are 78 miles apart when they stop, how many miles west did Jill drive? Show all work in solving the problem.
Answer:
72 mles
Step-by-step explanation:
For better understanding, I'll make use of an attachment.
From the attachment,
O represents the start point
[tex]OB = 30[/tex] --- Jack
[tex]AB = 78[/tex] -- Distance between them
Required
Find OA; Jack's distance
To do this, we make use of Pythagoras theorem
[tex]AB^2 = OA^2 + OB^2[/tex]
This gives:
[tex]78^2 = OA^2 + 30^2[/tex]
[tex]6084 = OA^2 + 900[/tex]
Subtract 900 from both sides
[tex]OA^2= 6084 - 900[/tex]
[tex]OA^2= 5184[/tex]
Take square roots
[tex]OA = \sqrt{5184}[/tex]
[tex]OA = 72[/tex]
Hence, Jill drove 72 miles
A company that makes hair-care products had 6,000 people try a new shampoo. Of the 6,000 people,
36 had a mild allergic reaction. What percent of the people had a mild allergic reaction?
% of the people had a mild allergic reaction,
Answer:
0.6% of the people had a mild allergic reaction.
Step-by-step explanation:
Given that:
Number of people who tried hair care products = 6000
Number of people who had reaction = 36
Percent of people = [tex]\frac{Number\ of\ people\ with\ reactions}{Total\ number}*100[/tex]
Percent of people = [tex]\frac{36}{6000}*100[/tex]
Percent of people = 0.6%
Hence,
0.6% of the people had a mild allergic reaction.
Find the percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase () or decrease (0)
15 yards to 18 yards
Is this an increase or decrease?
Answer:
increase
Step-by-step explanation:
Which algebraic expression represents the sequence shown?
4, 8, 12, 16, …
A. 4n
B. n + 4
C. 4n + 4
D. 4 (n-10)
Answer:
B
Step-by-step explanation:
all but b wouldnt make sence because it would multiply
-10+7M= -10
Step by step and explain .
Answer:
Step-by-step explanation:
here you go mate
step 1
-10+7m= -10 equation
step 2
7m-10+10=-10+10
7m=0
step 3
[tex]\frac{7m}{7} =\frac{0}{7}[/tex] divide
answer
m=0
mind if i get brainliest?
Answer:Isolate the variable by dividing each side by factors that don't contain the variable.
M=0
Step-by-step explanation:
The difference of two numbers is 18. Their sum is 66. What are the numbers? List the numbers from least to greatest.
Write the equation for each line: red, gray, purple, and blue.
red: y = -2x + 3
gray: y = 3x -2
purple: x = 5
blue y = -4
hope this helped <3
HELP PLS I NEED HIS 39 degrees
Answer:
46.2 or 46.1
Step-by-step explanation:
use sohcahtoa
tan(39) x 57 = 46.1576
to the nearest tenth 46.2
Find the slope of a line passing through: (-4, -8), (-3, -13)
Answer:
the slope is -7
.
Step-by-step explanation:
-13-(-8)/-3-(-4) is -7/1. which is also -7
In a bag there are 10p coins, 20p coins and 50p coins
there are three fewer 20p coins that 10p coins
theres are seven more 50p coins than 10p coins
altogether there are 61 coins
work out the total value of the 20p coins give your answer in pounds(£)
Answer:
Approximately 25p (please change to pounds by yourself I'm not European, sorry).
Ok so according to my research its 100 pence to one pound. Which will mean that 25p in pounds is £ 00.25
Step-by-step explanation:
let's say:10p= x20p= y 50p= z '3 fewer 20p (y) coins than 10p (x) coins'Therefore:y-3=x and y= x+3'7 more 50p coins (z) than 10p coins (x)'That is:z+7= xz= x-7'altogether are 61 coins'x+y+z = 61 (substitute for y and z)x + x + 3 + x - 7 = 61x+x+x+3-7 = 613x - 4= 613x= 61 + 43x=65x= 65÷3x= (approximately) 21.6 (Substitute x in y and z)y = x+3y = 21.6 + 3 = 24.6 (approximately 25)z = x -7z= 21.6-7= 14.6 (approximately 15)y= 20p y= 25p (approximately)Check x+y+z= ?21.6 + 24.6 + 14.6= 60.8 (approximately 61)(Sorry I couldn't change to pounds)
And I tried to explain as much as possible, you can ask if you're confused.
What is A + B?
A = [ 3.42 1]
B = [5 6 89]
Answer:
5692.421
Step-by-step explanation:
3.421 + 5689 = 5692.421
Is this the right answer???
Answer:
No, the answer is 200
Step-by-step explanation:
[tex]x ( 2y + z ) ^{2}[/tex]
x = 2
y = 3
z = 4
Substitute in the given values and solve;
Remember the order of operations;
(1) parenthesis
(2) exponents
(3) multiplication or division
(4) addition or subtraction
[tex]2 ( 2(3) + 4)^{2}\\2(6+4)^{2}\\2(10)^{2}\\2(100)\\200[/tex]
7. Describe a rigid transformation that takes Polygon A to Polygon B
Answer: Rotate 180° around the origin.
Step-by-step explanation:
It doesn't even matter whether its clockwise or counterclockwise. You get the same result.
The attachments are screenshots of your original screenshot rotated 180°
I’ll mark brainliest!
Probability.
Easy.
Answer:
18 people used bus
Step-by-step explanation:
now give me brainliest
Which is a correct first step for solving this equation-5(4x-7)+=3x
Answer:
Start by multiplying -5 by 4x and -7.
Answer:
Changing the equation to -20x+35=3x
Step-by-step explanation:
You would multiply each number in the parenthesis by -5
Hope this helps :)
A Caribbean resort has a nightly limbo contest on the beach, Participants must be less than 64 inches tall. The distribution of heights of adult American men is approximately normal with mean 69 inches and standard deviation 2.5 inches. About what percent of adult American males could enter this contest?
Answer:
2.23%
Step-by-step explanation:
We solve using z score formula
z = (x-μ)/σ, where
x is the raw score = < 64 inches
μ is the population mean = 69
σ is the population standard deviation = 2.5
Since: Participants must be less than 64 inches tall.
For x < 64 inches
z = 64 - 69/2.5
z = -2
Probability value from Z-Table:
P(x<64) = 0.02275
Converting to percentage
= 0.02275 × 100
= 2.275%
Approximately = 2.23%
Because participants must be less than 64 inches tall to participate in this limbo contest, the percent of adult American males thag could enter this contest is 2.23%
Answer:
2.23
Step-by-step explanation: