The length of a rectangle is three times its width, if the area of the rectangle is 108cm2, find its perimeter
Answer:
The perimeter of rectangle is 48 cm.
Step-by-step explanation:
First, you have to form an expression for the length and the width. Let x be the width :
width = x cm
length = 3 × x = 3x cm
Then, you have to apply area of rectangle formula, A = length × width to find the value of x.Let area equals to 108 :
A = length × width
108 = 3x × x
3x² = 108
x² = 108 ÷ 3
x² = 36
x = √36
x = 6 cm
Lastly, you have to find perimeter :
length = 3 × 6 = 18 cm
width = 6 cm
Perimeter = 2(length + width)
P = 2(18 + 6)
P = 2(24)
P = 48 cm
Answer:
48cm
Step-by-step explanation:
Olivia takes a brisk walk around a pond. She walks 1.25 hours at an average speed of 3 miles per hour. What is the distance around the pond? The distance around the pond is _____________________.
**Please label your answer.**
Answer:
3.75 miles i think
Step-by-step explanation:
A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
Which one is it??
Will mark brainliest if someone answers this
i cant see the picture its blocked :((( (im on a chromebook)
find product of 5/12×6
Answer:
2 and 1/2
Result in decimals: 2.5
Step-by-step explanation:
5/12 × 6/1 = 5/2 = 2 and 1/2
Result in decimals: 2.5
Calculation steps:
5/12 × 6/1 = (5 × 6)/(12 × 1) = 30/12
30 ÷ 6 = 5
12 ÷ 6 = 2
= 5/2
= 2 and 1/2
The triangles are similar. Complete the similarity statement
Answer:
ABC
Step-by-step explanation:
Answer:
YZX ~ ABC
Step-by-step explanation:
For Angle Y, there is one curved line, so you must go to the other triangle and find which angle has one curved line too, in this case that is angle A. Then, Angle Z has three curved lines, and in the other triangle, Angle B has three curved lines, so you now have AB, which only leaves C left. So your final answer is ABC.
A box of cereal contains 16 cups. If each bowl holds 1 1/3 cups of cereal, how many bowls of cereal will you get out of the box?
Answer:
the answer is 12
Step-by-step explanation:
you deposit 3,800 in an account with an annual interest of 5.2% for 20 years
HELPPOOOPPPPPPPP MEEE
Answer:
(24x - 48y + 10) / 26 = a
Step-by-step explanation:
-12(-2x+4y) = 26a - 10
24x - 48y = 26a - 10
24x - 48y + 10 = 26a
(24x - 48y + 10) / 26 = a
Is this relation a function (1,3)
(1, 20)
(9, 4)
Since x=1 produces y=3 and y=20, the relation (1,3),(1,20),(9,4) is not a function.
The relation is not a function.
4. The side lengths of a square are each 5p. By adding 1 to the length and subtracting 1 from the width, a rectangle is made. What is the area of the rectangle?
O4p2 - 2
25p2 + 1
25p - 10p - 1
25p2 - 1
Answer:
D. 25p² - 1
Step-by-step explanation:
Each side length of a square = 5p
Length of rectangle = 5p + 1
Width of the rectangle = 5p - 1
Area of rectangle = Length × Width
Area of rectangle = (5p + 1)(5p - 1)
= 5p(5p - 1) +1(5p - 1) (distributive property)
= 25p² - 5p + 5p - 1
Area = 25p² - 1
a doll maker puts a small bag of 5 hair ribbons inside each box with a doll how many bags of 5 hair ribbons can be made from 45 hair ribbons
Answer:
divide 45 by 5
you get 9
the answer is 9
Answer:
45 / 5 = 9
Step-by-step explanation:
this.is your answer it's quite simple if u need more help lmk
Shrina has read 10% of the books that are in the library. She has now read 327 books.
How many books are there in the library?
Which equation represents a linear function. Pic attached and I will mark brainly
Answer:
I will answer the equation, however there is no pic attached
Step-by-step explanation:
You apply the
{Select)
operation
[ Select ]
-for multiplication equations and
[ Select ]
for division equations
-to
[ Select ]
of the equation.
Answer:
ndhduejcijgisjcidjcjzjfjidjicjdici djcojzifcjdjcu
Step-by-step explanation:
no se weydgfds
Solve the following equations for the given variable.
3x + 2y = 6 for y
Answer:
Answer:
y=3
Step-by-step explanation:
you just need to do 2 divided by 6
Answer: y = -3/2x + 3
Step-by-step explanation:
3x + 2y = 6 First Isolate y by subtracting 3x from both sides
-3x -3x
2y = -3x + 6 Now divide both sides by 2
y = -3/2x + 3
Rent it right rents compact cars for $38 per day plus $0.15 per mile. Lucia rented a car for 3 days and was charged $150. How many miles did she drive?
Answer:
240
Step-by-step explanation:
first 38 times 3 = 114
second 150-114= 36
third 36/0.15= 240
answer is 240
Which is a better estimate for the weight of a double-decker bus
Step-by-step explanation:
Coaches are typically sized to a height of 4.38 meters, whereas 'high-bridge' vehicles are usually around 20 centimeters higher. At an average height of 18.65 metres, integrated double-deckers are often permitted .
HELP ME WITH ALL OF THESE ASAP i will give BRAINEST
Answer:
The first is true.
8 · 21 = 168
The second is false.
The third is false.
The fourth is true.
Step-by-step explanation:
Answer:
true
168 divided by 21 is 8
true
168 divided by 8 is 21
false
168 divided by 16 is 10.5
false
168 divided by [tex]\frac{1}{8}[/tex] is 21
Step-by-step explanation:
for number one since there 21 cans of soup and 168 oz are used for all cans you would divide 168 by 21 and you get 8 and so on with the rest of the questions !
PLEASE HELP QUICKLY !!!!!!!!!!!!!! I will give brainliest
t=100 I was not sure about y sowyy
5x5=? someone help please
Answer:
25
Step-by-step explanation:
4/10x 6/4 x 2/3=
Product:
Reduced answer:
( ( 4 /10 x)(6) /4 x)(2) /3
Product: 2 /5 x^2
Simplified: You can't simply that.
(I hope this is correct, correct me if I'm wrong.)
Find the given probabilities. If the probabilities or given in decimal then your answer should be in decimals. If the probabilities are a fraction then your answer should be in fraction.
a. If \large P\left(A\right)=\frac{1}{6} and \large P\left(B\right)=\frac{4}{9}, and events A and B are disjoint events, so \large P\left(A or B\right)=
b. If P(A)= .67 and P(B)= .13 and events A and B are disjoint events, so P(A or B)=
Answer:
B
Step-by-step explanation:
3. Maryia wants to save money on a new computer. At the store near her,
the computer she wants is listed at a regular price of $400.00. On
Saturday, the store will have a sale and discount the computer by 1/5 off
the original price. How much will Maryia pay, when she buys the computer
that Saturday? *
A. $320
B. $210
O C. $250
O D. $120
Answer:
A
Step-by-step explanation:
So, what is happening is that the sale would put the computer on 4/5 the original price, since 1/5 of the price is being taken away in the sale.
4 divided by 5 is 0.8, and 0.8 times 400 is 320.
Hope this helps!
5. Carlos and Mike are selling cheesecakes for a school fundraiser. Customers can buy pecan
cheesecakes and apple cheesecakes. Carlos sold 1 pecan cheesecake and 4 apple cheesecakes for a total
of $44. Mike sold 14 pecan cheesecakes and 14 apple cheesecakes for a total of $238. Find the cost
each of one pecan cheesecake and one apple cheesecake.
a. Define variables:
b. System:
c. Solve the systems (optional):
Answer:
One pecan costs $8. One apple costs $9.
Step-by-step explanation:
p and a are number of number of pecan and apple sold, respectively.
:::::
"1 pecan cheesecake and 4 apple cheesecakes for $44"
p + 4a = 44
"14 pecan cheesecakes and 14 apple cheesecakes for $238"
14p + 14a = 238
You have a system of two equations in two unknowns:
p + 4a = 44
14p + 14a = 238
:::::
Eliminate the p terms: Multiply the first equation by -14, then add the product to the second equation.
-14p - 56a = -616
14p + 14a = 238
------------------------
-42a = -378
a = (-378)/(-42) = 9
p = 44-4a = 8
One pecan costs $8. One apple costs $9.
Solve for x and y
A=3y
B=105
C=9x+5
D=2x+10
Answer:
Where's the equation?
Describe how a point on a graph is related to a table and an equation that represent the same relationship.
Answer:
because everything is relative to each other.
Step-by-step explanation: Graphing ordered pairs is only the beginning of the story. Once you know how to place points on a grid, you can use them to make sense of all kinds of mathematical relationships. A linear relationship is a relationship between variables such that when plotted on a coordinate plane, the points lie on a line. Let’s start by looking at a series of points in Quadrant I on the coordinate plane. Look at the five ordered pairs (and their x– and y-coordinates) below.
Answer:
Graphing ordered pairs is only the beginning of the story. Once you know how to place points on a grid, you can use them to make sense of all kinds of mathematical relationships. A linear relationship is a relationship between variables such that when plotted on a coordinate plane, the points lie on a line. Let’s start by looking at a series of points in Quadrant I on the coordinate plane. Look at the five ordered pairs (and their x– and y-coordinates) below.
Brainliest?!?!??!?
I need one more .
f(x) = x2 + 1
f(-3)=)
Answer:
f(-3) means, put -3 at x
therefore, f(-3)= 3²+1
=10
Madison has test scores of 93, 82, 86, and 75. What is the mean?
answer as fast a possible
Answer:
Mean is 84
Step-by-step explanation:
If a ball is thrown straight up into the air with an initial velocity of 100 ft/s, it height in feet after t second is given by y = 100t – 16.
a.) Find the average velocity for the time period begining when t = 2 and lasting for the given amount of time.
0.5 seconds
(ii) 0.1 seconds.
(iii) 0.01 seconds.
b.) Based on the above results, guess what the instantaneous velocity of the ball is when t = 2 seconds.
Answer:
Answer:
11 0.1 seconds
Step-by-step explanation: