Answer:
a(n) = 12 + 8n
a1 = 20
a2 = 28 = 20 + 8
a3 = 36 = 20 + 8.2
a4 = 44 = 20 + 8.3
.......
=> this is a arithmetic with a1 = 20
d = 8
=> an = 20 + 8(n - 1) = 12 + 8n
Bella is x years old. Jake is 9 years older than Bella. Five times Jake’s age is equal to 300. (a) Write an equation that could be used to solve for Bella’s age, x. (b) How old is Bella? Show your work. (c) How old is Jake? Show your work. Answer: (pls and thanks)
There are 60 people at a game fair, waiting in line to ride an attraction. Each car has a limit of 10 people. Write the mathematical operation that can be used to find the number of cars to hold 60 people.
Find the best buy between 6.2 oz. for $2.97 or 8 oz. for $3.47.
Parallel/perpendicular definition
Answer:
Parallel: extending in the same direction, everywhere equidistant.
Perpendicular: ar an angle of 90 to a givin line, plane or surface.
Answer:
Two or more straight lines having equal distance between them through out is parallel lines
Perpendicular lines are two lines at Right angles
Problem 1.1
Solve this equation:
2(x + 5) = 3x + 1
Answer:
x = 9
Step-by-step explanation:
Distribute
2x+2*5=3x+1
2x+10=3x+1
Subtract 3x from both sides
-x+10=1
Subtract 10 from both sides
-x=-9
Multiply both sides by -1
x=9
Answer: x=9
Step-by-step explanation: 2(x + 5) = 3x + 1
2(x+5)
2x+2(5)
2x+10-10= 3x + 1-10
2x-3x=3x-9-3x
-x/-1=-9/-1
x=9
Select the best possible first step to solving the system by first eliminating the x variable.
3x + 5y = 1
2x + 4y = −4
Which function has a greater rate of change? Function A: x 1.5 2.5 3.5 4.5 5.5 y 5 0 –5 –10 –15 Function B: y = –4.5x + 15 Function A has a rate of change of –5 and Function B has a rate of change of –4.5, so Function A has a greater rate of change. Function A has a rate of change of 5 and Function B has a rate of change of 4.5, so Function A has a greater rate of change. Function A has a rate of change of 5 and Function B has a rate of change of 4.5, so Function B has a greater rate of change. Function A has a rate of change of –5 and Function B has a rate of change of –4.5, so Function B has a greater rate of
Answer:
Function A has a rate of change of -5 and Function B has a rate of change of -4.5, so Function B has a greater rate of
Step-by-step explanation:
Function A:
[tex]\begin{array}{cccccc}x & {1.5} & {2.5} & {3.5} & {4.5} & {5.5} \ \\ y & {5} & {0} & {-5} & {-10} & {-15} \ \end{array}[/tex]
Function B:
[tex]y = -4.5x + 15[/tex]
Required
Which has a greater rate of change
The rate of change of function A is calculated as thus:
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
Where:
[tex](x_1,y_1) = (1.5,5)[/tex]
[tex](x_2,y_2) = (2.5,0)[/tex]
So, we have:
[tex]m = \frac{0-5}{2.5 - 1.5}[/tex]
[tex]m = \frac{-5}{1}[/tex]
[tex]m = -5[/tex]
For function B
The general function is:
[tex]y = mx + b[/tex]
Where
m is the rate of change
By comparing [tex]y = mx + b[/tex] to [tex]y = -4.5x + 15[/tex]
[tex]m = -4.5[/tex]
So, we have that:
Function A has a rate of -5; function B has a rate of -4.5.
By comparison: -4.5 is greater than 5
Hence, function B has a greater rate.
Please helppp me with this math problem
Answer:
length: 38 feet
width: 10 feet
area: 380 ft²
Step-by-step explanation:
The scale between the drawing and the actual studio is 2 in : 5 ft. If we divide both sides by 2, we find that the scale is 1 in : 2.5 feet.
For the first number, 15.2 inches, if we multiply it by 2.5 and change the label to "feet", we can find the real length.
15.2 * 2.5 = 38.
The length is 38 feet.
For the width, do the same thing.
4 * 2.5 = 10
The width is 10 feet.
Area is length times width. So if we plug in the numbers we just found:
38 * 10 = 380.
The area is 380 ft²
I need help please ASAP
How many tiles are used to model “x+3” in x+3=7 and how did you know?
x- tiles:
3-tiles:
Answer:
Your answer
Step-by-step explanation:
X=4
x stands for an unknown number subtract 7-3=4
therefore... X=4
i'm in algebra one I know math.
HAVE A GREAT WEEK! :)
Need help with question 2please due in 10mins
Answer:
x 1 2 6 12 25
f(x) 22 34 82 154 310
f(3)= 46 means that in the third month, the online magazine provider will charge a total of $46.00
Step-by-step explanation:
For finding the missing f(x) values:
Plug in the x-values that are given into the original equation: f(x)= 12x + 10
ex: f(1)= 12(1) + 10 => 22
For finding the missing x value, set the original equation to the given f(x) value
ex: 34 = 12x + 10 => 2
One field that a farmer uses for his crops is 115 yards long and 50 yards wide. How long is the diagonal of the field to the nearest tenth of a yard?
A. 125.4 yards
B. 165 yards
C. 290.4 yards
D. 65 yards
Answer:
A) 125.4 yards
Step-by-step explanation:
the diagonal would represent the hypotenuse of a right triangle with legs equal to 115 and 50
115² + 50² = c²
c² = [tex]\sqrt{15725}[/tex] which is approx 125.4
Please help and please I need help:)
Answer:
16 eighteenths
Step-by-step explanation:
Answer:
16 eighteens fit into [tex]\frac{8}{9}[/tex]
Step-by-step explanation:
in order to find out how much eighteenths are the in [tex]\frac{8}{9}[/tex]. we just have to divide [tex]\frac{8}{9}[/tex] by [tex]\frac{1}{18}[/tex]. So we get...
[tex](\frac{8}{9}) /(\frac{1}{18}) = (\frac{8}{9})(18) = \frac{144}{9} = 16[/tex]
A hot air balloon travels at a constant rate of 3 miles per hour. If the balloon traveled a total of 72 miles, how many hours would it take?
IF answered right i will give brainiest plsssssssssssssss help
[tex]\huge{\underline{\mathtt{\red{A}\pink{N} \green{S}\blue{W} \purple{E}\orange{R}}}}[/tex]
give I'd and pass.....
how many 3/8 are in 8?
Answer:
5? i think i got it wrong
Step-by-step explanation:
Answer:
21.333
Step-by-step explanation:
Scottie is standing next to a lighthouse on the edge of a cliff overlooking the ocean. The cliff is 30 meters above sea level, and the lighthouse has a height of 15 meters. There is a man fishing in a boat directly below Scottie who has hooked a fish that is 10 meters below the surface of the water. a. Use positive and negative numbers to represent the locations in relation to sea level. Scottie =
Complete question :
Scottie is standing next to a lighthouse on the edge of a cliff overlooking the ocean. The cliff is 30 meters above
sea level, and the lighthouse has a height of 15 meters. There is a man fishing in a boat directly below Scottie who
has hooked a fish that is 10 meters below the surface of the water.
a. Use positive and negative numbers to represent the locations in relation to sea level.
Scottie =
Top of the lighthouse =
The boat =
The fish =
meters
b. How far is Scottie from the fish?
Answer:
30 m ;
15 m ;
0 m;
40 m
Step-by-step explanation:
Scottie's position = standing on cliff
Height of cliff = 30 m above sea level
Height of lighthouse = 15 meters
Position of fish = 10m below sea level
Above sea level = positive, +
Below sea level = negative, -
Scottie's position = 30 m
Top of lighthouse = 15m
BOAT = surface of sea = 0m
Fish = - 10 m
Distance of Scottie from fish :
Scottie's position - Position of fish
30m - (-10)m
30m + 10m
= 40m
(7th grade math question)
Sales of the Xbox One increased from 10,000 to 18,500 in November. What was the percent increase?
A) 8.5%
B) 45.9%
C) 85%
D) 85.8%
please answer soon
Answer:
C) 85%
Step-by-step explanation:
i hope this is right ^w^
A rectangular flower garden has a length that is 3-feet greater than its width. If the flower garden is surrounded by a 1 foot wide concrete path, write a quadratic equation that represents this situation.
Answer these two to get 20 points!!
7,650÷______=7.65
answer______
Answer:
1000
3 decimals
Noah and Lin are making paper cones to hold popcorn to hand out at parent math night. They want the cones to hold 9 cubic inches of popcorn. What are two different possible values for height h and radius r for the cones?
height (h)=
radius (r)=
Answer:
So, The possible values of h and r are
1. r = 3 , h = 3
2. r = 1, h = 27
3. r = 2, h = 6.75
Step-by-step explanation:
P.S - The exact ques is -
As we know that Volume of cone , V = [tex]\frac{1}{3}\pi r^{2}h[/tex]
As given,
V = [tex]9\pi[/tex]
⇒[tex]\frac{1}{3}\pi r^{2}h = 9\pi \\ \frac{1}{3} r^{2}h = 9 \\r^{2}h = 27[/tex]
So,
The possible values of h and r are
1. r = 3 , h = 3
2. r = 1, h = 27
3. r = 2, h = 6.75
In Case I-
When r = 3, h = 3
(3)² ×3 = 9×3 = 27
Satisfied
Case II-
r = 1, h = 27
(1)²×27 = 1×27 = 27
Satisfied
Case III-
r = 2, h = 6.75
(2)²×6.75 = 4×6.75 = 27
Satisfied
If the radius of the base of the cone is 2 inches then the height of the cone should be 2.1485 inches.
What is the volume of the cone?The volume of the cone is the volume occupied by the cone. It is given by the formula,
[tex]\text{Volume of the cone}= \dfrac{1}{3} \pi r^2h[/tex]
where r is the radius of the base, and h is the height of the cone.
Now, as it is given that cones need to hold 9 cubic inches of popcorn. therefore, the volume of the cone can be written as,
[tex]\text{Volume of the cone}= \dfrac{1}{3} \pi r^2h\\\\9 \times 3 = \pi r^2h\\\\\dfrac{9 \times 3}{\pi}=r^2 h\\\\8.5943 = r^2 h[/tex]
Thus, the product of the square of the radius and the height of the cone should be such that the result is 8.5943.
Now, let the radius of the cone be 2 inches, therefore, the height of the cone is,
[tex]8.5943 = r^2 h\\\\8.5943 = (2^2) h\\\\h = 2.1485\rm\ in[/tex]
Hence, if the radius of the base of the cone is 2 inches then the height of the cone should be 2.1485 inches.
Learn more about the volume of the cone:
https://brainly.com/question/1315822
There are 8 teams playing in the tournament. Each team is scheduled to play every other team once. How many games will be played during the tournament?
A. 15
B. 21
C. 28
D. 36
Plz help me! who ansers this good I will giv 50 points!!!! I will vote you brainlest
Answer:
36 i did the quiz!
What is the result of converting 14 inches into centime
ters?
Answer:
35.56cm
Step-by-step explanation:
convert 14 inches to cm
Divide 200kg in the ratio 15:9:1
Answer:
120kg, 72kg and 8kg
Step-by-step explanation:
Given the ratios 15:9:1
total ratio = 15+9+1 = 25
For the ratio of 15
Share = 15/25 * 200
Share = 3000/25
Share = 120kg
For the ratio of 9
Share = 9/25 * 200
Share = 1800/25
Share = 72kg
For the ratio of 1
Share = 1/25 * 200
Share = 200/25
Share = 8kg
What is the equation for each line?
HELP AND QUICKK!!!!
Jada is going to the county fair and and would like to go on as many rides as she can. The entry fee to get into the fair is $8 and rides cost $2.50 each. If Jada spent $28 at the fair, how many rides did she go on?
A. Write an equation for this word problem.
B. Solve the equation.
C. Answer the question with a complete sentence in context.
Answer:
A) 8+2.50x=28
B) 8 rides
C) Jada can go on 8 rides before she has spent all of her money
Step-by-step explanation:
subtract the $8 fee from 28 and get 20, then divide 20 by how much each ride costs (2.50) and get 8 :)
Answer:
She went on 8 rides
Step-by-step explanation:
28-8=20÷2.50=8
Help!!! Please help me I need help on my homework!
Answer:
Using the law of indices
5 X 5^-3
5^1-3
5^-2
What is the answer to this question? -10 x -6?
Answer: 60
Step-by-step explanation:
-10 x -6 = 60
Negative x Negative = Positive
Answer: 60
Step-by-step explanation: When multiplying integers,
if the signs are the same, the product is positive.'
So a negative times a negative always equals a positive.
So in this problem, -10 × -6 is 60.
12y - 4 = 168
What is y? Use inverse operation
Answer:
y=14.33
Step-by-step explanation:
Add 4 to both sides you should get 12y=172Now, divide both sides by 12 and you should get y=14.33Answer:
the answer is 14.33
Step-by-step explanation:
first you do 12y-4=168
+4=+4
---------
0=172
so now the eqation is 12y=172
then you divide 172/12=14.33
How do you make someone's comment the brainiest answer
Answer:
Nice.......It helped me out
LOL
Step-by-step explanation:
What is the lateral surface area of the triangular prism below ***GIVING BRANIEST TO FIRST CORRECT ANSWER***
Answer:
288cm²is answer.
length=12m
lateral surface area of the triangular prism=perimeter of triangle ×length={7+9+8}×12=24×12=288cm²is answer.