A bookmark has an area of 21 square centimeters. Its perimeter is 20 centimeters. What are the dimensions of the bookmark?
Answer: The dimensions are 7cm and 3cm.
Step-by-step explanation:
The following equation can be deduced from the question
L × W = 21 ....... i
2L + 2W = 20 .......... ii
Divide equation ii through by 2
(2L + 2W = 20) / 2
L + W = 10 ....... iii
From equation iii
L = 10 - W ......... iv
Put equation iv into I
L × W = 21
(10 - W) × W = 21
10W - W² = 21
W² - 10W + 21 = 0
W² - 7W - 3W + 21 = 0
W(W - 7) - 3(W - 7) = 0
W - 3 = 0
W = 0+3
W = 3 centimeter
Since,
Length × Width = 21
Length = 21/3
Length = 7 centimeters
The dimensions are 7cm and 3cm.
Revenue control systems can help protect guests, employees, and revenues from the point of taking a guest's order to:
A) checking the guest out
B) locking the safe at night
C) making a bank deposit
D) closing out a shift
Answer:
i think is A
Step-by-step explanation:
because need to check first
ANSWER FAST
True or False:
Women involved in the women's rights reform movement often also supported the abolitionist movement to end slavery.
Answer:
true
Step-by-step explanation:
truuuuuusststttt me
help please need answers
Answer:
slope: 2/3 or 0.6666...
Step-by-step explanation:
find two points on the line : (1,2) and (0,-2) and do rise over run. Rise = 2 and Run = 3, so you put it in rise over run form. Rise/Run = 2/3. The graph is positive.
NEED HELP ASAP I will give BRAINLIST
Line BD intersects line CE and the measure of ∠BAC
is 6° more than twice the measure of ∠CAD
If m∠DAE=122°
, which equation can be solved for x, the measure in degrees of ∠CAD
?
A
3x+128=180
B
2x+6=122
C
2x+128=180
D
3x+6=122
I really need help ASAP pls I think it’s c but I’m not sure
Answer:
C.
Step-by-step explanation:
Because angle TQR & angle TRU are complementary angles, meaning they add up to 90º.
So if TQR = 18, then:
(X- the measure of TRU)
X + 18 = 90
solve for x:
X + (18-18) = 90 - 18
X= 72
Hope this helps! Have a great day!
Adrian purchased a new car in 1990 for $24,900. The value of the car has
been depreciating exponentially at a constant rate. If the value of the car was
$13,500 in the year 1994, then what would be the predicted value of the car
in the year 1999, to the nearest dollar?
Answer:
Multiply it by 4 and divide it by 100. It should be1,100. Now multiply it by12. it should be 13200 . Now subtract that to the original price. 14300
Step-by-step explanation:
PLEASE rate follow and thank
Answer: 6281
Step-by-step explanation:
{[3 + 2 - (9 - 7) + (3 + 4)]
Answer:
7
youd do 9-7= 2
3+4= 7
3+2-2+7 is your equation now and you can do this left to right like normal
5-2+7
3+7
Answer:
10
Step-by-step explanation:
The order of operations is applicable in a multip-operations equation. This theorem states the order in which one must do operations in order to get a valid result. Remember the order of operations states;
1) Parenthesis
2) Exponents
3) Multiplication or Division
4) Addition or Subtraction
Solve this equation, keeping the order of operations in mind;
{ [ 3 + 2 - ( 9 - 7 ) + ( 3 + 4 ) ] }
{ [ 3 + 2 - ( 2 ) + ( 7 ) ] }
{ [ 3 + 2 - 2 + 7 ] }
{ [ 5 - 2 + 7 ] }
{ [ 3 + 7 ] }
{ [ 10 ] }
10
4) Select one of your desserts.
Desserte ice cream Price: 3.00
This dessert hasn't been selling well so.
you have decided to decrease the price
by $0.50. What is the percent of
change?
Answer:
Step-by-step explanation:
see calculate bro 3 = 100%
1.5 is 50%
0.50 is then 25%
Justin and his friends went to a movie that started at 7:35 p.m. Justin got home 50 minutes after the movie ended. What time did Justin get home?
Someone plz help me
Please help with number 1? It’s urgent!!!!
Answer:
b
Step-by-step explanation:
PLEASE HELP QUICK!! ILL GIVE THE BRAINLIEST!!
Ms. Williamson is looking at data to determine (figure out) how long to make her slide shows for class. It takes her about 7 minutes per example problem when she is teaching in front of the class. Write an equation to compare the number of example problems and total minutes of teaching.
Answer:y=7x+y
Step-by-step explanation:
quadritlet ABCD is rotataed at 90 about the orgin what are the coordinates of quadriltel A'B'C'D' A 5,5 B 5,1 C 2,1 D 1,5
Answer:
k
Step-by-step explanation:
j
Okay, I and my mom do not know how to do this- please help-
Distribution Skill
3 (-5y²- 3)
Help p-p
Answer:
Step-by-step explanation:
this is the start of your mad algebra skilz.. it does take constant practice, like anything you want to get better at :) keep trying
this is called "Distribution" and is used often
3(-5[tex]y^{2}[/tex] -3)
-15[tex]y^{2}[/tex] +9
if you need more explanation just put your questions at the comments of this problem ... i'll see them :)
The two polygons are similar. Find the values of x and y.
Please help, i will mark brainliest
What’s the volume of the rectangular prism
Answer:
24cm3
Step-by-step explanation:
A bag contains 100 marbles: 30 are red, 25 are green, 15 are blue, 7 are yellow, and the rest are orange.
Consider the following events, and then answer the question.
Event A: drawing a green marble
Event B: drawing a purple marble
Event C: drawing a red marble
Event D: drawing a yellow marble
Which probability is the smallest?
Answer:
a.25 out of 100 chances
b. 0 out of 100 chances
c. 30 out of 100 chances
d. 7 out of 100 chances
Step-by-step explanation:
Evaluate the 3y^2 below when x=6 and y=5.
Answer:
225
Step-by-step explanation:
there is no need for x
What are the coordinates of each point after quadrilateral ABCD is rotated 270° about the origin?
Answer:
A'(1, -1), B'(3, -2), C'(3, -4), D'(1, -5)Step-by-step explanation:
The rule for a rotation by 270° about the origin is:
(x, y) → (y, −x)Coordinates of ABCD:
A(1, 1), B(2, 3), C(4, 3), D(5, 1)Coordinates of the image:
A'(1, -1), B'(3, -2), C'(3, -4), D'(1, -5)Answer:
A'(1,-1) , B'(3,-2) , C'(3,-4) , D'(1,-5)
These are correct answers hope this helps. :)
Step-by-step explanation:
Find the 92nd term of the arithmetic sequence -29, -22, -15, ...
Answer:
608
Step-by-step explanation:
The appropriate general formula here is a(n) = a(1) + (n -1)d, where d is the common difference. Here, d = +7. Thus:
a(92) = -29 + (92-1)(7) = 608
brainest for whoever get the right answer first
Answer:
discrete. discrete can be used to describe graphs that involve variables such as customers and tickets.
what is (2m+8y)+(4+9m)+(-2 -3
1\2+ 1/4 rasultado y explicasion
Answer:
[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
Simplemente agregue usando la calculadora y debería obtener esta respuesta. ;)
Every week for 40 weeks, Abeke earned $76 selling ice cream and 35$ delivering newspapers. Write a numerical expression to show how much money Abeke earned in 40 weeks.
Answer: 40 x (76+35)
Step-by-step explanation:
Given: Every week Abeke earned,
$76 by selling ice cream
$35 by delivering newspapers.
i.e. Total amount earned in 1 week = $ (76+35)
Now Total amount earned in 40 weeks = 40 x (76+35)
The numerical expression to show how much money( in dollars) Abeke earned in 40 weeks = 40 x (76+35)
We have to simplify it to get the total money earned in 40 weeks i..e. $4440.
simplify the expression 3(j+2)-2
Answer: (3j + 6) or 3j + 4
Step-by-step explanation:
You distribute the 3 inside the parentheses and you could subtract the 2
Step-by-step explanation:
I hope this helps. 3j+6-2= 3j+4
what is the percent / degree of X ?
Answer: 65
Step-by-step explanation:
All those angles added up have to equal 360 degrees.
The little square on the angle to the left of x means that it's a right angle, or 90 degrees.
360
- 180
= 180 <--- this is the bottom half,
180
- 90 <--- the right angle on the left
= 90
90
-25
= 65 <--- that's x
£3.23 + £1.47 =
What is the answer i've tried so many different ones an they never seem to be wright?
Answer:
£4.7
Step-by-step explanation:
Answer:
£4.7
Step-by-step explanation:
BRAINEST, BEST WILL GET IF EXPLANED WELL
Answer:
4(x-2) isn't equal to the others because when simplified it is 4x-8
Step-by-step explanation:
For the equation 3x = 15, what property do you use to solve it algebraically?
Addition Property of Equality
Subtraction property of Equality
Multiplication Property of Equality
Division Property of Equality
Answer:
I believe it's "Multiplication Property of Equality"