Which equation is a proportion?
1/3 = 1/4
3/4 = 6/9
5/8 = 20/32
7/9= 21/28
Answer:
C: [tex]\frac{5}{8}=\frac{20}{32}[/tex]
Step-by-step explanation:
None
Answer:
Option C
Step-by-step explanation:
Cross multiply each of the answers
Option C is right because 160 = 160 through cross multiplication
An equation and the first step in its solution are shown.
Equation: x2 + 3x – 9 = 0
Step 1: x2 + 3x + h = 9 + h
What value of h is used to solve the equation by the method of completing the square?
Answer:
The answer is either 1.5 or 0.667
Step-by-step explanation:
x2+3x-9=0
x2+3x=9
6x=9
x=1.5
or
x=667
the value of 'h' used to solve the equation by completing the square method is [tex]\frac{9}{4}[/tex]
Given :
An equation and the first step in its solution are shown.
Equation: [tex]x^2 + 3x -9 = 0[/tex]
Step 1: [tex]x^2 + 3x + h = 9 + h[/tex]
In completing the square method , we take the coefficient of x and divide it by 2 and then square it
coefficient of x is 3
divide it by 2 , so we get [tex]\frac{3}{2}[/tex]
Then we square it [tex](\frac{3}{2} )^2\\\frac{9}{4}[/tex]
Then we add it on both sides of the equation
[tex]x^2 + 3x + \frac{9}{4} = 9 + \frac{9}{4}[/tex]
So, the value of 'h' used to solve the equation by completing the square method is [tex]\frac{9}{4}[/tex]
Learn more : brainly.com/question/10662834
Please help I will mark brainliest if you explain the correct answer
Answer:
172 kilo
Step-by-step explanation:
I added all numbers together and got my answer.
Please answer this and tell me how you got it!!
Answer:
Step-by-step explanation:
multiply 2nd equation by 3 to get 6m+18n=0 then just use the elimination method
:) please comment for more explaning
Select the function that represents a geometric sequence
Answer:
c
Step-by-step explanation:
Pls help me 17 points!!!
Answer:
i dont know
Step-by-step explanation:
i really need these pionts im sorry wish you luck
5th Grade Math HW Help (Please help, due 12/14!) I'll pick the best answer for extra points.
Answer:
(1-4)
1. 160÷(16+4)=8
2. (4+6)*8÷2=40
3. 3=120÷(64-24)
4. 135=(42+3)*3
(5.a.)1. column A
2. column B
3. column A
4. column A
5. column A
6. column B
(5.b) i don't know :(
(6.a) 72
(6.b) I followed the Base * Width * Hight method. I used the expression 3*4*6=72
<3
List all the factors of the numbers: a. 40 and b. 3
Answer fast
1. You have two playing cards with a sum of (−12) in your hand.
a. What two cards could you have?
b. You add two more cards to your hand, but the total sum of the cards remains the same, (−12). Give two different examples of two cards you could choose.
THIS IS DO TODAY I NEED HELP PLS
Answer: $9.99
Step-by-step explanation:
2=$4
2/2=1
4/2=2
$2+$8 =10$
Answer:
D.$9.95
Step-by-step explanation:
If you divide the cost of 2 pairs of socks in half which is $3.98 you would get $1.99 which is the cost of 1 pair of socks and then you would multiply $1.99 by 5 to get $9.95 which would be the cost of 5 pairs of socks.
If you could help that would be fantastic! Thank you!
Answer:
A
B
A
Step-by-step explanation:
hope this helps :•D
2) help ASAP due in like 10min
Answer:
y=25x-5
Step-by-step explanation:
25x is the money you start with and 5 is a constant that you lose per game hence the negative/or subtraction sign
Branliest plsssss
Answer for me please! (Will mark brainlist)
Answer:
$52
Step-by-step explanation:
Please mark as brainliest. I'm happy to help
Stefan sells Jin a bicycle for $115 and a helmet for $17. The total cost for Jin is 110% of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How much money did he make by selling the bicycle and helmet to Jin? IF BOTH PARTS OF QUESTION ARE ANSWERED CORRECTLY I WILL GIVE BRAINLIEST
Answer:
120 and 12
Step-by-step explanation:
115+17= 132
132/110= 1.2
1.2 · 100= 120
132-120= 12
Can somebody please help me and explain a bit, it's for a test grade :(
Answer:
Step-by-step explanation:
All you have to do is
85=5(x)
A ride-share driver completed 6 trips and was paid a flat fee of $90, not including any tips. At this rate, how many trips must he complete to be paid a total of $225?
Answer:
15
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
Because 90x2.5=225 so then you do 6x2.5 and that is 15.
In which of the number lines does the plotted point represent a number greater than Negative 1 and one-half? Check all that apply.
Answer:
The answers are D and E.
Step-by-step explanation:
Answer:
All the above
Plz help thx!!!! each box needs to be filled in! with a conjunction of IR.
Answer:
vv
Step-by-step explanation:
v
it's a little blurry sorry please help
Answer:
It's X=2
Working out:
(left one):
2(x+3)=10
2x+6=10
2x=10-6
2x=4
x=2
Working out:
(right one):
2(x+3) must be all divided by 2 so it will be x+3 and same for 10, it will be 5 so...
x+3=5
x=5-3
x=2
Hope it helps ^---^
Find the sale price of each item. Round to two decimal places when necessary.
Original Price: $22.50
Markup: 42%
Answer:
31.95
Step-by-step explanation:
So first you have to identify what the mark up is which would be $9.45
Then you add that to 22.50... And idk what you mean by Round up to two decimal places when necessary.
Answer:
$31.95
Step-by-step explanation:
22.50*1.42=31.95
The tallest player in the European Basketball League (EBL) is 229 centimeters tall. The tallest player in the National Basketball Association (NBA) is 90 inches tall. Which league has the tallest player? Show your work. (1 in. = 2.54 cm.)
Answer:
12 inch so total inches = 7*12 + 1 = 85 inches 1 inch = 2.54 cm 85 inches = 85 * 2.54 = 215
PLEASE HELP ASAP. I BELIVE ITS YES
Answer:
yes because the corresponding angles do not have a sum of 180
Step-by-step explanation:
Answer:
yes because the corresponding angles do not have a sum of 180
Step-by-step explanation:
Math HW, please help:
At its maximum speed, a motorboat can travel 10 miles downstream on a river in 20 minutes. It takes 30 minutes for the boat to travel back upstream the same 10 miles, also at maximum speed.
Write a system of two equations that could be used to find the maximum speed of the motorboat in still water. Let b represent the maximum speed of the motorboat in miles per hour and let r represent the speed of the river's current in miles per hour. Convert the times into hours. Solve the system of equations for b and r to determine the boat's maximum speed in still water and the speed of the river's current.
Does anyone know this :-)
What is -3 (2m - N)?
Answer:
−6m+3N
hope this helps
Step-by-step explanation:
Unit 2 Lesson 2 PS 1 table
What is the constant of proportionality?
Explain or show your reasoning.
Answer:
k
Step-by-step explanation:
The constant of proportionality is the ratio between two directly proportional quantities. ... Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.
Plss help with this math!!!! i will give brainliest to the best explained correct answer
write the numerical expression. 6 times the sum of 12 and 8. Write your answer with no spaces.
Answer:
6(12+8)
Step-by-step explanation:
the word 'times' would indicate the multiplication of 2 numbers
the word 'sum' would indicate the addition of 2 numbers. in this case, 12 + 8 would be placed in parenthesis
hope this helps!! :)
PLEASE HELP! FINALSSSS!
Stanley won x raffle tickets at the school carnival. Regina won y raffle tickets. Daphne won image as many raffle tickets as Stanley. Keenan won 3 times as many raffle tickets as Regina.
Which expression represents the total number of raffle tickets Stanley, Regina, Daphne, and Keenan have all together?
A. x − 1/2x + y − 3y
B. 3y − y + x − 1/2x
C. x + y + 1/2x + 3y
D. 3y + y − x + 1/2x
Answer:
The answer is c it's the best answer
What is the value of 2y- 6 if y = 12
Answer:19
Step-by-step explanation:
The answer is 19 because you need to do 12*2 and then subtract 6. 24-6=19
Answer:
18
Step-by-step explanation:
1.) 2y -6
2 ) 2(12) - 6
3.) 24 - 6
Answer ~ 18
1.) 12 equals y so put 12 in place of y
2.) Using PEMDAS, multiply 12 × 2 which equals 24.
3.) Then you subtract 6 from 24 which equals 18.