Create an equation modeling the scenario. Use the equation to solve for the missing number. In your final answer, include the equation and all necessary calculations. Twice the sum of a number and seven is three times the number.
Answer:
2(n+7)=3n
Step-by-step explanation:
"A number" is unknown so just create a variable in this case I made it "n."
We know that sum means to add so add the variable n and 7 then going back up the beginning we see it says twice so we take that sum and times is by two and I'm using parentheses to show this. The next part of the problem says "Is" and that's an indication of an equal sign. We'll then put the equal sign after the problem we just filled out and finish off the equation with 3 times the number meaning we'll put the 3 and next to each other as another way of multiplying.
um i need help
Name 2 types of percents that you have to add the part.
Answer:
for example The ending number --> 50% of 2 is what?
Step-by-step explanation:
and The starting number --> 50% of what is 1
Answer:
40% of 1
Step-by-step explanation:
PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY
Answer:
17v and 48
Step-by-step explanation:
Which expression is the best estimate of 5 7/8−3 2/15?
Answer:
C 6-3.
Step-by-step explanation:
5 78 is close to 6
3 2/15 is close to 3
Carla is going on a boat tour. The boat will travel a total distance of 70 kilometres during the 10-hour tour. If the boat travels at a constant speed during the tour, what distance in kilometres should the boat travel in 3 hours.
Answer:
21 km I think
Step-by-step explanation:
If you do 70/10 then you get 7 km per hour. Then you do 7*3 and get 21 km in 3 hours
Hope this helps, though this is kinda late :]
What's the relationship between the circumcenter of a triangle and its three vertices?
Solve the inequality 9/2 + v > 7/5
Answer:
the answer is -31/20
Step-by-step explanation:
Sonya randomly surveys 26 seventh graders to gather data about the amount of time spent each week using the Internet. Sonya records the data in the dot plot shown. Sonya infers that, on average, most seventh graders use the Internet a little more than 7 hours each week. Based on the dot plot, which number is the median of Sonya's data?
Answer:
I Think that it is 7.5
Step-by-step explanation:
Hope that his helps you :-)
The median and mean of the data is 7.5
What is Arithmetic Mean?The simplest and most popular way to measure a mean or average is the arithmetic mean. It simply entails adding up a collection of numbers, then dividing that total by the total number of numbers in the series.
Given:
According to box plot the mean is
= (3 x 2+ 4 x 1 + 5 x 2 + 7 x 8 + 8 x 3+ 9x 5 + 10 x 5 ) / 26
= (6 + 4 + 10 + 56 + 24 + 45 + 50 ) / 26
= 195 / 26
= 7.5
Hence, the mean is 7.5.
Also, the median = (7+8)/2 = 7.5
Learn more about Arithmetic Mean here:
https://brainly.com/question/13000783
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I plan on opening a savings account with $500 and leaving it in the account for 2 years. If the bank is going to pay me an interest rate of 3%, how much money will I have in the account at the end of 2 years?
A. $30
B. $300
C. $530
D. $800
C. 530
500 x 2 x 3%
500 x 2 x .03
1000 x .03
30
30 + 500 = 530
Question 9
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Maria has a new fish tank for her goldfish. The tank measures 912 inches long, 312 inches wide, and 612 inches tall.
Part A:
What formula should Maria use if she wants to know the volume of her new fish tank?
Part B:
Using the formula you wrote for Part A, what is the volume of Maria's new fish tank?
I'm giving out Brainliest!
Step-by-step explanation:
step 1. V = LWH. L = length. W = width. H = height.
step 2. V = (912)(312)(612) = 174,140,928 in^3.
The volume of Maria's new fish tank is 174,140,928 cubic inch.
It is required to find the volume of Maria's new fish tank.
What is cuboid?In geometry, a cuboid is a solid shape or a three-dimensional shape. A convex polyhedron that is bounded by six rectangular faces with eight vertices and twelve edges is called a cuboid.
Given :
Maria has a new fish tank for her goldfish.
The fish tank is in the shape of cuboid.
length=912 inches
width=312 inches
Height=612 inches
Part A
The formula of volume of her new fish tank
Volume=length ×width × height.
Part B
Volume=length ×width × height.
By the use of formula we have,
V = (912) ×(312) ×(612)
V= 174,140,928 cubic inch.
Therefore, the volume of Maria's new fish tank is 174,140,928 cubic inch.
Learn more about cuboid here:
brainly.com/question/21620249
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−76 = −0.8k
k =
What number represents k
Answer:
k= 95
Step-by-step explanation:
-76=-0.8k
-76/-0.8=k
95=k
k= 95
Which expression is a factor of 100x2−25?
A 50x + 4
B 50x−5
C 10x−4
D 10x + 5
What is the experimental probability of drawing a red marble, given the following results?
Marble Color Blue Green Red
Times Drawn 8 5 7
Answer:
7 / 20 | 7 Out of 20 | 35%
Step-by-step explanation:
Answer:
Fraction form: 7/20
Word form: Seven out of twenty
Persentage form: 35%
Step-by-step explanation:
i will give brainliest to whoever answers correctly
Answer:
6
Step-by-step explanation:
HELP PLEASE!!!!!!!! ILL GIVE U 10 POINTS
Answer:
14% discount
Step-by-step explanation:
I was off by 2%
Answer:
16%
Step-by-step explanation:
if you help me I will give you 5 stars and brailiest
Answer:
108 108 108 108 and 35
Step-by-step explanation:
108 108 108 108 and brain and five stars OR ELSE jk. I think it's 35?
A doctor replaces the fish tank in her office. Do the fish have more room to swim in the new tank? Find the volume of each tank to find out.
The volume of the new tank is ____________cubic feet
Answer:
12
Step-by-step explanation:
YEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEET
Which of the following graphs represents a function?
Answer:
the last one
Step-by-step explanation:
Can you plz pick only 2 of these and make sure you have the steps to go with it cuz it’s due today
Answer:
two of whats
Step-by-step explanation:
PLSSSSSS HELPPP!!! FASTTTTTTT
Answer:
A or C
Step-by-step explanation:
I hope I could help.
Answer:
D. Not here
Step-by-step explanation:
Juli says she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6:10.
Which statement explains whether Juli is correct?
a. She is correct because she can multiply 6 and 10 by any number to form an equivalent ratio.
b. She is correct because 6:10 can be written as 1:2 and there are an infinite number of ratios for 1:2.
c. She is not correct because the multiplication table does not include multiples of 10.
d. She is not correct because 6:10 is equivalent to 3:5 and there are only 9 ratios in the multiplication table that are equivalent to 3:5.
The flywheel on a steam engine rotates 60 revolutions every 15 seconds.
What is the flywheel’s rate of revolutions per second? ( can somebody tell me what the unit rate and the rate unit is)
Answer:
4 revolutions per second
Step-by-step explanation:
Sorry thats all I know.
Match the equation to the graph where n is the Number of Burgers and C is the cost.
The 2 equations are C= 0.35n and C= 0.5n.
Answer:
How did life during the Industrial Revolution differ in the North and the South?
In what ways did the Industrial Revolution make life better?
How did it make life more difficult? How did life during the Industrial Revolution differ in the North and the South?
In what ways did the Industrial Revolution make life better?
How did it make life more difficult?
Step-by-step explanation:
Regina travels ½ of a kilometer for every ¼ of a minute she drives. You were told that the trip from Times Square to Pelham Parkway is 72 kilometers. How many minutes would her trip have taken by car?
Answer:
36 minutes.
Step-by-step explanation:
The best way to solve this is to find how much distance is traveled in a minute and then divide the total distance by the distance traveled in a minute. Now let's apply.
1/4 x 4 = 1 minute, so in this problem, 1/2 x 4 = 1 minute.
1/2 x 4 = 2.
72 / 2 = 36.
Her trip would have taken 36 minutes by car.
Answer:
36 minutes.
Step-by-step explanation:
For every mile she takes it's 1/2 of a minute. Then just do 72/2 and get 36 :)
What is the rate of change from year 2 to year 7?
help pleaseee U-U
thank you will mark brainly if right
the surface area of a triangle!
Answer:
Yea the guys is right. B
Step-by-step explanation:
Which of the ratios below is equivalent to 2:3? Select all that apply.
A) 9:6
B) 10:15
C) 8:12
D) 4:5
E) 20:30
Answer:
b and e
Step-by-step explanation:
Answer:
B C and E
Step-by-step explanation:
B is correct because when you multiply 2 and 3 by 5 you get 10:15
C is correct because when you multiply 2 and 3 by 4 you get 8:12
E is correct because when you multiply 2 and 3 by 10 you get 20:30
to find ratios you should be able to multiply the original two numbers by the same number to match
Finding the Slope: Identify the slope. Will give 5 brainlist points if correct
Answer:
1/2
Step-by-step explanation:
Rise 1 over 2
Which expressions are equivalent to:
–2.5(1 – 2n) – 1.5n
Select all that apply.
−2.5 − 3.5n
−2.5 + 3.5n
−2.5 − 6.5n
−2.5 − n(5 − 1.5)
−2.5 + n(5 − 1.5)
Find the whole.
10% of ( space) is 14.
Answer:
140
Step-by-step explanation:
Let x be the (space). Then, 10% * x = 14.
Solving for x, we get:
10% * x = 14
0.1x = 14
x = 140