Answer:
n=4
Step-by-step explanation:
-8-5n^2=-88
-5n^2=-80
n^2=16
n=4
A chemist has 20 gallons of solution with 12% saline. How much pure saline (100% saline) needs to be added to the 20 gallons to create a mixture with 15% saline content? Round your answer to the nearest tenth (if you answer this please let me know how you got the answer, thank you!)
Answer:
0.6 gallons of pure saline
Step-by-step explanation:
15-12=3
3=×0.03
20 gallons ×0.03=0.6 gallons
Han ran 10 meters in 2.7 seconds. Priya ran 10 meters in 2.4 seconds.
Answer:
?????????? WHAT IS THE QUESTION
Answer:
Priya is faster than Han
Step-by-step explanation:
0/2.7 = 3.70 meters per second
10/2.4 = 4.16 meters per second
4.16 meters per second is greater than 3.70 meters per second, and thus, Priya is faster.
please, someone, help me I need an answer now, please
Answer:
y=10x+20
Step-by-step explanation:
first find the slope by counting or using the formula. the slope is 10. next determine the y intercept by looking for the y value when x is 0. The y intercept is 20. the y intercept is b and slope is m, Substitute those values into the formula y=mx+b
Answer:
1/20
Step-by-step explanation:
What are the domain and range of the function
f(x)=√x-7+9
Answer:
domain: x is greater than or equal to 7
range: y is greater than or equal to 9
so the answer is cStep-by-step explanation:
edge 2020
The box-and-whisker plot represents the prices (in dollars) of the entrees at a restaurant.
a. Find and interpret the range of the data.
The range is
The prices vary by no more than | |$
b. Describe the distribution of the data.
The lower 25% of the prices are between | |$
and | |$
the middle 50% of the prices are between | |$
and $
and the upper 25% of the prices are between $
and | |$
c. Find and interpret the interquartile range of the data.
The interquartile range is | |
The middle half of the prices vary by no more than | |$
Using the box-and-whisker plot given:
a. Range = 9.5
b. The lower 25% of the prices are between $8.75 and $10.5; the middle 50% of the prices are between $10.5 and $14.75; and, the upper 25% of the prices are between $14.75 and $18.25
c. Interquartile range (IQR) = $4.25
What is a Box-and-whisker Plot?A box-and-whisker plot shows the five number summary which includes:
Lower Quartile (Q1)Minimum ValueMedianUpper Quartile (Q3)Maximum Value, of a data distribution.Thus:
a. Range = Max - Min
Range = 18.28 - 8.75
Range = 9.5
b. The data distribution in the box-and-whisker plot can be described as:
The lower 25% of the prices are between $8.75 and $10.5
The middle 50% of the prices are between $10.5 and $14.75
The upper 25% of the prices are between $14.75 and $18.25.
c. Interquartile range (IQR) = Q3 - Q1
Interquartile range (IQR) = 14.75 - 10.5
Interquartile range (IQR) = $4.25
Learn more about box-and-whisker plot on:
https://brainly.com/question/12343132
Select the mathematical terms that mean "opposite of."
Step-by-step explanation:
reciprocal ; negative ; additive inverse ; and multiplicative inverse . Explanation: The opposite of a number in is a negative. The number we can add to a number to get 0, or the opposite of a number as far as addition goes, is its additive inverse
Answer:
inverse
Step-by-step explanation:
hope this helps:)
PLEASE ANSWER ASAP IT IS TAKING TIME!!! :)
Answer:
The answer will be -1/6
PLEASE HELP QUICK!! Steve's bill at a restaurant for lunch was $15. He had exceptional service and wanted
to leave a 20% tip for his waiter. What is the total cost of his lunch?
A$3
B$15
C$18
D $5
Answer:
C) $18
Step-by-step explanation:
20% of 15 is 3. That is how you get your tip. If you add the $3 tip to the $15 meal, your meal costs $18.
-32 - 7/-2
ahhhhh help me
Answer:
I think it is -28.5
Hope this Helps!
What if Jacob decided to buy a used game system and 5
games? Then what would the cost be for his purchase?
Remember: Jacob is buying a used game system for
$120 from a store. The store also sells used games for
$12 each.
Answer:It would be 180 dollars
Step-by-step explanation:
because 12X5=60 and 120+60=180 which is your total for selling the game system
Answer:
The cost of his purchase would be $180
Step-by-step explanation:
You would multiply the 5 games he wants to buy by the price of the games to get 60 and then add that to the price of the gaming system.
Pete grabbed 18 mixed nuts, Start Fraction 2 Over 9 End Fraction of which were almonds. Which equation shows how to determine the number of almonds Pete grabbed?
1. 18 divided by StartFraction 2 Over 9 EndFraction = 81
2. 18 times StartFraction 2 Over 9 EndFraction = 4
3. StartFraction 2 Over 9 EndFraction divided by 18 = StartFraction 1 Over 81 EndFraction
4. StartFraction 9 Over 2 EndFraction divided by 18 = one-fourth
Answer:
The answer is : B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
What is the solution to the inequality 2+4x/9 > 4+x
Answer:
x ≥ − 49/4
Step-by-step explanation:
The sum of 4 and seven times a number is 130. What is the number?
Answer:
18
Step-by-step explanation:
7x+4=130
7x=126
x=18
Answer:
18
Step-by-step explanation:
We can put this into "equation" terms to make it easy for us to solve for the number. Let's assign the "number" the variable x.
The sum of 4 and 7 times a number is 7x + 4. All of this is 130 which means it's equal to 130. So below is how it looks like:
7x + 4 = 130
7x = 126
x = 18
The number therefore is 18
A block of ice with mass 2 kg slides down a friction less inclined plane that slopes at an angle of 37° below the horizontal. If the block of ice starts from rest, what is its speed after moving a distance of 0.75 m?
8.85 m/s
3.45 m/s
11.9 m/s
2.97 m/s
Answer:
2.97
Step-by-step explanation:
what is a prism is a three-dimensional figure with at least two parallel, congruent faces called?
Answer:
A transparent solid body, often having triangular bases,used for dispering light into a spectrum or for reflecting rays of light is prism.
A three dimensional figure with at least two parallel, congruent faces is called cylinder.
Three teachers equally shared 4 Over 5 of a flat of paper that was donated to the school. What fraction of the flat of paper did each teacher receive? 4/45 of the flat 4/15 of the flat 14/45 of the flat 12/15 of the flat please hurry if you can
Answer:
4/15 of the flat paper
Step-by-step explanation:
We are told in the question that:
Three teachers equally shared 4 / 5 of a flat of paper that was donated to the school.
What fraction of the flat of paper did each teacher receive?
This is calculated as:
4/5 ÷ 3
4/5 × 1/3
= 4/15
Therefore each teacher received 4/15 of the flat paper
Solve 67 x 92 Using Partial Product
Answer:
6164
Step-by-step explanation:
What did George Washington say to his men just before they got in the boat
What operation should be done first to solve 5x + 3 = 28?
(I'm a smol brain lol)
Answer:
subtract the 3 from both sides
dont multiply
after that you divide both sides by five to get x alone
awnser plssssssssssssssssssssssssssssssssssssss
The answer is perpendicular but I want to know how to get that answer, I will give brainliest to the first answer
Answer:
because if you graph the point and make them lines they will be perpendicualar
Step-by-step explanation:
try it
Brock's dad is 24 years older than him.In 24 years, his dad will be twice his age at that time. How old is Brock right now?
HELPPPP PLEASE!!!
Three consecutive odd integers are such that the sum of the smallest integer and the largest integer is 86. Find the value of the 2nd number.
Answer: The value of the second number is 43
Step-by-step explanation:
x+x+4=86
2x+4=86
2x=82
x=41
41+2=43
I hope you find this helpful :))
what is this answer to this question?
Answer:
13?
Step-by-step explanation:
Simplify and express in scientific notation (6x10^3) (2x10^5)
Answer:
1.2 * 10^9
Step-by-step explanation:
Written out, the number is 1,200,000,000
We can simplify that number to 1.2 * 10^9 (ten to the ninth power)
I hope this helped, please mark Brainliest, thank you!
f(-14) if f(x) = 2x - 3
Answer:
The correct answer is -31.
Step-by-step explanation:
f(-14) means that x=-14. You have to replace x with -14. Then, you multiply -14 by 2. That is -28. Next you subtract 3 from -28. That gives you -31.
what are the steps to solve these?
Step-by-step explanation:
you have the vlaues, so plug them into the equation.
and example for number 7 is to plug in 8 wherever n appears in the equation.
solve from there by simplifying with PEMDAS
hope this helps :)
Mrs. Patterson hired a company to mow and clean her lawn. They charge a $25 initial fee and $20 for every hour of yard work. The final cost of the lawn service was $105. Which equation models this situation and is solved correctly to determine the number of hours, h, the lawn company spent cleaning her yard?
A 20h=105: h=5.25
B 25+20h=105: h=4
C 25h+20=105: h=3.4
D 25+20h=105: h=5
DIST 20-21 MATH Algebra II Unit 2 Investigation 1 Assess
The interior temperature of a particular gas oven is determined by its dial setting, which goes from 1 (lowest) to 10 (highest). The relation
can be represented by the function T(N) = 13N +124.
Which expression below matches the following statement When the dial is set at 2, the temperature of the oven will be 150 degree
T(2)=150
(150=2
T(13)=150
o Tx)=2
In ARST, RT is extended through point T to point U, mZRST = (3x + 17),
mZSTU = (
(8x + 1)º, and mZTRS = (3x + 18). What is the value of x?