Sharon correctly answered 21 out of 24 questions on a math quiz. Which is this ratio as a decimal?
0.625
0.667
0.840
0.875
pls help♡
Answer:
0.875
Step-by-step explanation:
To find the decimal, you divide the 21 by the 24.
21/24 = 0.875
An ammonia and water mixture fills a five-gallon container. Eighty percent of the mixture is ammonia, but some of the mixture will be drained and replaced with pure water. If a five-gallon mixture of fifty percent ammonia is desired, how many quarts of the mixture need to be drained before the water is added, given that 4 quarts equals a gallon
Answer:
The volume of the 80% ammonia that is to be drained before water is added is 7.5 quartz
Step-by-step explanation:
The volume of the ammonia and water mixture = 5 gallons
The percentage of ammonia in the mixture = 80%
The volume of ammonia desired = 5 gallons
The percentage concentration of ammonia desired = 50%
The diluting solution = Pure water
The measure of 4 quarts = 1 gallon
Therefore, we have, by equivalence solutions;
80% × x gallon = 50% × 5 gallons
x gallon = 50% × 5 gallons/(80%) = 3.125 gallons
x = 3.125 gallons
The volume of the 80% ammonia that is to be drained = 5 gallons - 3.125 gallons = 1.875 gallons
4 quarts = 1 gallon
1 gallon = 4 quarts
∴ 1.875 gallons = 4 × 1.875 quartz = 7.5 quartz
The volume of the 80% ammonia that is to be drained before water is added = 7.5 quartz
Answer:
7.5
Step-by-step explanation:
pls pls someone answer thissss asap...also I’d like the steps on how to do it as well pls and ty!!!
Answer:
v>19/6
Step-by-step explanation:
Determine the constant of variation for the direct variation given. Type a numerical answer in the space provided.
Answer:
B. 4
Step-by-step explanation:
Determine the constant of variation for the direct variation given.
(0, 0), (3, 12), (9, 36)
A. 3
B. 4
C.12
Direct variation is given by:
y = kx
Where,
k = constant of variation
(3, 12)
x = 3; y = 12
y = kx
12 = k*3
12 = 3k
k = 12 / 3
k = 4
(9, 36)
x = 9; y = 36
y = kx
36 = k * 9
36 = 9k
k = 36 / 9
= 4
k = 4
Constant of the variation = 4
Edgar is scuba diving 50 feet below the water. He is swimming to the surface at a rate of 3 feet per second. Write an equation to represent his depth, d, after s seconds.
Fill in the blank
d = __ s + __
(also to understand better we are doing the equation y = __ x + __ )
Answer:
I know this is late but the actual answer is d=3s+-50
Step-by-step explanation:
The reason is because he is swimming down, so yeah.
Please help 20 points and brainliest
Which of the following groups of numbers is in order from least to greatest?
0.54, 7/10, 40%
3/4, 0.8, 94%
67%,1/2 , 0.8
7/10, 0.54, 67%
Answer: the last second one: 3/4 0.8 94%
Step-by-step explanation:
because 3/4 is smaller than one so it has to go first.
hope it helps :) pls give brainliest
3/4, 0.8, 94%
DO IT HES RIGHT
what's 10× 10 , will giving points out ?
Answer:
100
Step-by-step explanation:
10 puls 10 10 times lol
Please help me!!!!!!
Answer:
C.) y=-2/3+4
Step-by-step explanation:
You can look at the y-intercept to find the equation really quickly!
For example, the line crosses the y-axis at the value of 4, therefore, the y-intercept is 4.
The only option with a y-intercept of 4 is C
helppppppppppppp pleaseeeee
Answer:
30 percent
Step-by-step explanation:
Which expression is equivalent to (8x – 20) + (-4x + 12)?
A. 12x + 8
B. 4x – 8
C. – 4x – 8
D. – 4x
Answer:
B. 4x-8
Step-by-step explanation:
Please Simplify 5(x - 6)
Final Answer: [tex]5x - 30[/tex]
Steps/Reasons:
Question: Simplify [tex]5(x - 6)[/tex]
Step 1: Expand by distributing the terms.
[tex]5x + 5[/tex] × [tex]-6[/tex]
Step 2: Simplify [tex]5[/tex] × [tex]-6[/tex] to [tex]-30[/tex].
[tex]5x - 30[/tex]
~I hope I helped you :)~
Our equation looks like:
[tex]5(x-6)[/tex]
This means that we will need to distribute. This means that we need to multiply everything inside the parenthesis by the number outside of the parenthesis. (Note: you only distribute when variables are involved.)
[tex](5 \cdot x)-(5 \cdot 6)[/tex]
Simplify:
[tex]5x-30[/tex]
We cannot simplify any further, so we know that our equation, until we know what x equals, is [tex]5x - 30[/tex].
3x + 10 =1 A:x=6B=X=3 C:x=-3
Answer:
x = -3
Step-by-step explanation:
3x + 10 -10 = 1 - 10
3x = -9
3x / 3 = -9/3
x = -3
Factor the polynomials x^2 + 15x + 56
Final Answer: [tex](x + 7)(x + 8)[/tex]
Steps/Reasons/Explanation:
Question/Given: Factor the polynomials [tex]x^{2} + 15x + 56[/tex]
Step 1: Ask: Which two numbers add up to [tex]15[/tex] and multiply to [tex]56[/tex]?
[tex]7[/tex] and [tex]8[/tex]
Step 2: Rewrite the expression using Step 1.
[tex](x + 7)(x + 8)[/tex]
~I hope I helped you :)~
PLEASE HELP I WILL GIVE BRAINLIEST!!
Answer:
The answer to the chart is y=x-1
What is the area of the figure
A 234 in
B 315 in
C 225 in
D 252 in
If the scale factor of Figure A to Figure B is
3:8, find the value of x
We have been given that two figures. The scale factor of Figure A to Figure B is 3:8. We are asked to find the value of x.
We will use proportions to solve our given problem.
Figure A/Figure B=3/8
Upon substituting the ratio between Figure A and Figure B, we will get:
3/8=×/24
3/8•24=×/24•24
3/1•3=×
9=×
Therefore, the value of x is 9.
What is h(p)=(p3+4p2-2) in distributive property
Together, teammates Pedro and Ricky got 2687 base hits last season. Pedro had 281 more hits than Ricky. How many hits did each player have?
Ricky had 1203 hits Pedro had 1484
is anyone single and want to date me and my Question is what is 1234567 * 1234567
Step-by-step explanation:
-_-
The point-slope form of the equation of the line that passes through (-4,-3) and (12, 1) is y-1=1/4(x-12). What is
the standard form of the equation for this line?
x - 4y = 8
O x - 4y=2
4% - y = 8
O 49 - y = 2
Answer:
The answer is: x-4y=8
32 + -3 • 4 – (–5) =
Answer:
The correct answer would be 25
Step-by-step explanation:
32+(−3)(4)−(−5)
=32+−12−(−5)
=20−(−5)
=25
Hope this helps have an amazing day!!
Answer:
121
Step-by-step explanation:
32+(-3)×4-(-5)
29×4-(-5)
116-(-5)
116+(+5)
121
Sarah bought a television that cost $805.She plans to make equal payments of $38 each month until the television is paid in full. About how many payments will Sarah make
Answer:
Step-by-step explanation:
805/38= 21 7/38
So that is 21 full payments of $38.00 and one of $7.00
Find the circumference of the given circle use 3.14 pie and 7 in diameter
Answer:
43.98
Step-by-step explanation:
2piR
BTW the 7 is the radius not the diameter
Subtract
-b + 3 from – 116 – 4
Answer:
-123-b
Step-by-step explanation:
-116-4-(b+3)
-123-b
Line L is shown in the coordinate plane. a. What are the coordinates of points and ? b. Is the point (16,20) on line L ? Explain how you know. c. Is the point (20,24) on line L? Explain how you know. d. Is the point (80,100) on line L? Explain how you know. e. Write a rule that would allow you to test whether (, ) is on line L.
Answer:
so its will be the equal number
Step-by-step explanation:
pls dont get mad if I'm wrong I tried :)
Paula needed grounded beef to make lasagna for dinner. The ground beef cost $2.09 per pound at Vidalia Market. Write an equation to help Paula determine the total amount, y, she will pay for a given number of pounds of ground beef, x?
A. x = 2.09y
B. 2.09 = y/x
C. y = 2.09x
D. y = x/2.09
Answer:
C
Step-by-step explanation:
2.09x=y
eq C
Hope this helps plz hit the crown :D
Answer:
I think that it is C. y = 2.09x
Step-by-step explanation:
Hope this helped have an amazing day!
What is 30% off $14.16
Answer:
Step-by-step explanation:
14.16*30%= 4.248 or 4.25 off
Cuanto es 17 entre un medio
Answer: 8.5
Step-by-step explanation:
espanol- deberia ser 8.5
english- it should be 8.5 good luck!
Kayla can write 415 pages in 10 minutes. At this rate, how many pages could Kayla write in 30 minutes?
Answer:
1245
Step-by-step explanation:
You have to multiply 415 and 3, since 10 x 3 = 30
415 x 3 = 1245
Answer:
She can write 1245 pages in 30 mins.
Step-by-step explanation:
If 10*3= 30 then multiply 415 by 3 or add 415 3 times and you will get your answer. Hope this helped you!! Give brainliest.
Count the left-handed and right-handed spirals on the cacti in the photograph.
You should get two consecutive terms of the Fibonacci sequence. What are
the numbers?
A. 34 and 55
B. 5and 8
C. 21 and 34
D. 13 and 21
E. 8 and 13
Answer:
2 = 1 + 1
3 = 2 + 1
5 = 3 + 2
8 = 5 + 3
13 = 8 + 5
21 = 13 + 8.
Fibonacci numbers are found in many structures in nature.
We have just found that these cacti enclose Fibonacci numbers 13 and 21.
13 and 21
Step-by-step explanation: