Answer:
Correct
Step-by-step explanation:
The number of classrooms cleaned in 75 minutes is given by the proportion A = 10 classrooms
What is Proportion?The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given data ,
Let the proportion be represented as A
Now , the value of A is
The number of classrooms cleaned in 15 minutes = 2
The number of classrooms cleaned in 75 minutes = A
So , the proportion is
2 / 15 = A / 75
Multiply by 75 on both sides , we get
A = ( 2/15 ) ( 75 )
A = 2 x 5
A = 10 classrooms
Hence , the proportion is A = 10 classrooms
To learn more about proportion click :
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Robert sketches two rectangular prisms, A and B. Prism A's side lengths are 5 centimeters, 6 centimeters, and 7 centimeters. Prism B's side lengths were twice those of prism A's: 10 centimeters, 12 centimeters, and 14 centimeters. Robert says the surface area of prism B is twice the surface area of prism A. Is he correct? If he is not, how many times as great as prism A's surface area is prism B's surface area? Show your work.
Answer:
Robert is wrong, the correct answer is 4 times greaterStep-by-step explanation:
Area is the product of two dimensions.
If each dimension is doubled, then the area becomes 2*2 = 4 times greater.
If each face is 4 times greater, then their sum will be 4 times greater.
The sum of the faces is the total surface area, therefore the B's surface area is 4 times as great as A's surface area.
Please help show work please I beg
A 1
B 28
C7
D 14
Answer:
Option A
1
Step-by-step explanation:
7x + 7 = 18 - 4x. [Alternate interior angle]
=> 7x + 4x = 18 - 7
=> 11x = 11
[tex] = > x = \frac{11}{11} [/tex]
=> x = 1 (Ans)
no links please help needs to be done soon
For problems 1 and 2, WXYZ MNOP.
Calendar
1. Find the scale factor
W
12
X
M
Z
12
Y
128
F
9
2. Find the values of each variable. Show all work!
X=
y =
Z=
Answer is in the file below
tinyurl.com/wpazsebu
Answer:
Scale Factor is 8/9 or 9/8
x= 13.5
y=8
z= 128
Step-by-step explanation:
Since MP = NO then WZ= XY XY=8 so WZ= 8 =(y)
<z = <NOP z= 128
XY = 8 and MP = 9 ratio between the corresponding parts is 8/9
[tex]\frac{8}{9} = \frac{12}{x} \\108= 8x\\13.5 = x[/tex]
Use the distributive property to rewrite expression
6. 4(x + 9) =
Answer:
4x+36
Step-by-step explanation:
All you have to do is multiply the 4 by the numbers inside the parentheses.
4 times x is 4x
4 times 9 is 36
You can't find the answer since you don't know what x is.
I hope this helps, and have a great day! :)
The dolphin dives 30 feet below the surface of the ocean. What is the dolphin's new elevation?
Answer:
-30 feet
Step-by-step explanation:
If ground level is 0, and the dolphin goes 30 feet below 0, then the dolphin's elevation is -30 feet.
pls helpppppppppp meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
I THINK THE ANSWER IS...
people need to stay and tend their crops.HOPE IT HELPS
Answer:
I think its either A or C but I'm going to go with A
Step-by-step explanation:
Hope this helps (:
Find the length of the diagonal for a square that is 8 cm. by 8cm. Leave answer in
simple radical form.
Answer:
Step-by-step explanation:
Diagonal = 8√2
(X+5)+(x-5)=56 what does x=?
Answer:
x=28
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
x+5+x−5=56
x+5+x+−5=56
(x+x)+(5+−5)=56(Combine Like Terms)
2x=56
2x=56
Step 2: Divide both sides by 2.
2x/2=56/2
x=28
plz give me brainiest
The rule for this sequence is to add the same number each time.
Use this rule to write the missing numbers in the sequence.
2
?
?
?
18
Pls help I need it today!!!! 80 points!!!!! Part 1: Looking at the data plots, which test do you think the students scored better on? Do you think
has more variation than the other or is the variation about the same for both tests? Use complete se
answer and explain your reasoning.
Part 2: Calculate the mean (rounded to the nearest whole number) and mean absolute deviation for t
Part 3: Do your results from part B prove or disprove your hypotheses from part A? Use complete ser
answer and explain your reasoning.
MacBook Air
answered
I need this done today whoever gets this correct gets brainliest!!! PLZZ HELPP MEE
The First equation and the Third Equation
are equivalent to 6x - 24.
1) 6 ( x - 4 )
3)3 ( 2x - 8 )
Answer:
first one and third one. hope u get it right!
Step-by-step explanation:
6(x-4)
distribute (6*x and 6*4) then it equals 6x - 24
2(3x - 24) = 6x - 48
3(2x - 8) = 6x - 24
3(3x - 21) = 9x - 63
Elijah is a running back on a football team. In the last game, he played for 4 3/4 minutes in the first half and 7 11/20 minutes in the second half. Find his total playing time.
Rewrite the fractions so they have a common denominator
3/4 = 15/20
Now add:
4 15/20 + 7 11/20 = 11 26/20
26/20 simplifies to 1 3/10
11 + 1 3/10 = 12 3/10 total minutes
PLS HELP WILL GIVE BRAINLIEST AND 20 POINTS TY!
Answer: It is B)
Step-by-step explanation: It was 8.66 something and that rounded to the nearest tenth is 8.7
Answer:
B. 8.7
Step-by-step explanation:
the closest one is but the actual number is 8.6 repeating so 8.7 is correct
Add 84.0393 and 231.6581 and round the sum to the nearest hundredths and thousandths
kira can run 5 miles for every 30 minutes. how many minutes will it take her to run 8 miles?
nevermind its 48 I'm so sorry
Answer:
it would take her 48 minutes.
Step-by-step explanation:
if she runs 5 miles in 30 minutes and keeps that steady pace then she runs 1 mile in 6 minutes. 8 miles times 6 minutes is 48 minutes.
write the numeral that means the same as "three hundred fifty-two billion, six hundred thirty- five million"
Answer:
352,635,000
Step-by-step explanation:
does canned spam taste good?
Answer:
its fine because
Step-by-step explanation:
People who grew up with it often find it to be fine, good, or even delightful. Others may find it to be absolutely disgusting. Personally, I think SPAM tastes fine, but it's a bit too salty on its own. So, I think it's best when eaten with other foods that need some extra salt (like rice, eggs, etc.).
Answer:
-depending on what you like it taste like a salty, and slightly spicy, ham flavor.
slope intercept form for (-7,-7) (-6,-8)
Answer:
y = -x - 14
Step-by-step explanation:
Given right triangle ABC with right angle C, and sin A = ¼. Which of the following expressions are also equal to ¼?
Select all that apply
1. cos(A)
2. cos(B)
3. cos(90º - A)
4. cos(90º - B)
5. sin(B)
Answer:
cos(A)
Step-by-step explanation:
what is 0.24% as a decimal
Answer:
.0024
Step-by-step explanation:
Hey There!
So when converting a percentage to a decimal all we have to do is move the decimal place over to the left 2 times
so it would be .0024
hope this helps ~ MarkAnswers
Answer:
0.0024
Step-by-step explanation:
0.24% = 0.0024 in decimal form. Percent means 'per 100'. So, 0.24% means 0.24 per 100 or simply 0.24/100.
i hope this helps!! brainliest?
$1800 at 2% for 10 years
Answer:
$2194
Step-by-step explanation:
If this does not help you im sorry! :(
hope this helps u
Answer:
1836
Formula: P(1+r)^t
Steps- 1800$( 1 + .02)^10
instead of doing 2% we move the decimal two places to the left and get .02
From here you can just add it and get 1836$
I noticed you didn't put the annual interest rate, so I assumed it would be annually.
Solve the equation.
-3 = 2-8
Z=
Answer:
the equation doesn't have z as an exponent so i can't answer it
Step-by-step explanation:
Z = 5/8
-3 = 2 - 8z
-3= -8z +2
PLEASE HELP ME I’LL MARK YOU AS BRAINLIEST
The number of copies of a book sold the year it was released was 600,000. Each year after that, the number of copies sold decreased by half.
Write an equation representing the number of copies, c, sold y years after the book was released.
Answer:
[tex]c \div \frac{1}{2}y = x \\[/tex]
y = 1
Step-by-step explanation:
600,000 ÷ 1/2 = 300,000
c = 600,000
y = 1/2
x = 300,000
Answer:
600000(.5)^y
Step-by-step explanation:
Find the perimeter of the figure below if the width is 16 in and the length is 22.
Answer:
Step-by-step explanation:
Plz show the picture
Answer:
perimeter is 76
Step-by-step explanation:
hope it helps
Can someone help with this math problem? 3 (x+6) = 27
Answer:
x = 3
Step-by-step explanation:
Use distributive property: a(b +c) =(a*b) + (a*c)
3(x + 6) = 27
3*x + 3*6 = 27
3x + 18 = 27 {Subtract 18 from both sides}
3x + 18 -18 = 27 - 18
3x = 9 {Divide both sides by 3}
3x/3 = 9/3
x = 3
A partir del 1.° de diciembre, un camión de helados visita la calle de Sara cada 3 días y la calle de Ema cada 5 días. ¿Cuáles son los primeros 2 días que el camión visita ambas calles el mismo día?
Answer:
Los primeros 2 días que el camión visita ambas calles el mismo día es el 15 y 30 de diciembre.
Step-by-step explanation:
Los múltiplos de un número son todos los posibles resultados de multiplicar ese número por todos y cada uno de los números naturales.
Es decir, los múltiplos de un número natural son los números naturales que resultan de multiplicar ese número por otros números naturales.
El conjunto de los múltiplos de un número determinado (salvo el cero) es infinito, pues existen infinitos naturales para multiplicar.
Para determinar cuáles son los primeros 2 días que el camión visita ambas calles el mismo día, debes encontrar los múltiplos de 3 y 5:
múltiplos de 3: 3; 6; 9; 12; 15; 18; 21; 24; 27; 30
múltiplos de 5: 5; 10; 15; 20; 25; 30; 35; 40; 45; 50
Podes observar que los 2 primeros números comunes o que coinciden entre los múltiplos de 3 y 5 son 15 y 30. Esto quiere decir que los primeros 2 días que el camión visita ambas calles el mismo día es el 15 y 30 de diciembre.
Can someone plz help plzzzzzzz!!
1 fourth to the 3rd power as a fraction
Answer:
1/64
Step-by-step explanation:
(1/4)³
1³/4³ = 1/64
I need help with this can someone help me!!!
9514 1404 393
Answer:
B, D
Step-by-step explanation:
The figure shows one pair of opposite sides parallel (indicated by the arrows), and one pair of opposite sides congruent (indicated by the hash marks). This makes the figure a parallelogram, in which both pairs of opposite sides are congruent and parallel.
Find the annual interest rate. i=$160, P=2000, t=8 months
Answer:
0.12 or 12%
Step-by-step explanation:
I=Prt
r= I/(Pt)
r = 160/(2000 x 8/12)
r = 160/(4000/3)
r = 3/25
r = 0.12