The number of nights that are needed to cover 4 chapters of the science book by Anthony is 8.
What are ratio and proportion?A ratio is an ordered couple of numbers a and b, written as a/b where b can not equal 0. A proportion is an equation in which two ratios are set equal to each other.
Anthony reads 1/2 chapter of his science book each night.
He has 4 chapters left to read.
[tex]\begin{aligned} \rm \dfrac{1}{2} \ chapeter &\rightarrow 1 \rm \ night\\\\1 \ \rm chapter &\rightarrow 2 \ \rm nights\\\\4 \ \rm chapters &\rightarrow 8 \ \rm nights \end{aligned}[/tex]
More about the ratio and the proportion link is given below.
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PLEASE HELP ITS URGENT
DONT GUESS
WILL MARK BRAINLIEST
Answer:
[tex]468 {in}^{2} [/tex]
Step-by-step explanation:
see attached image, surface area is the area of each surface added together
can someone help me i lost
I really need help on this I also have a test on functions anyone willing to help
Answer: -4≤x≤6 (3rd option)
Step-by-step explanation:
Domain basically means the farthest x values going left and right on a graph. in this case x could be between -4 and 6 as well as equal to both -4 and 6
a 5lb bag of gravel cost $4.55 what is the unit price
Answer:
.91 is the unit price
Step-by-step explanation:
The unit price in terms of pounds is just 4.55/5 which is .91 so the answer is 91 cents.
plz help me with steps by steps asap its due in few minutes BRAINLIST and THANKS to the correct answer
Answer:
[tex]x = 7[/tex]
Step-by-step explanation:
Given
The attached figure
Required
Find x
Since both shapes are similar, then:
[tex]LM : KN = RV : SP[/tex]
This gives:
[tex]4x + 4 : 7x - 9 = 48 : 60[/tex]
As fraction:
[tex]\frac{4x + 4 }{ 7x - 9} = \frac{48 }{ 60}[/tex]
Simplify:
[tex]\frac{4x + 4 }{ 7x - 9} = \frac{4 }{ 5}[/tex]
Cross Multiply:
[tex]5(4x + 4) = 4(7x - 9)[/tex]
[tex]20x + 20 = 28x - 36[/tex]
Collect Like Terms
[tex]28x - 20x = 20 + 36[/tex]
[tex]8x = 56[/tex]
[tex]x = 7[/tex]
Find the area please :))))))
Answer:
86.60 units²
Step-by-step explanation:
It’s composed of two equilateral triangles (60-60-60).
(10√3)/2=8.66 (the height of each triangle
area = 1/2bh
1/2(10)(8.66)=43.30127
43.30127x2=86.60254
d − 32 = 65 play android
Answer:
d = 97Step-by-step explanation:
When you look at the equation, you can tell that it's asking for the difference of a number and 32. Add together 65 and 32 to get 97.
the square root of a number increased by 9 is 27 find the number
Answer:
4.24264
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
I don't know how to explain. •-• Sorry!
A typical roulette wheel used in a casino has 38 slots that are numbered 1, 2, 3, ... , 36, 0, 00, respectively The 0 and 00 slots are colored green. Half of the remain ing slots are red and half are black. Also, half of the integers between 1 and 36 inclusive are odd, half are even, and 0 and 00 are defined to be neither odd nor even. A ball is rolled around the wheel and ends up in one of the slots; we assume that each slot has equal probability of 1/38, and we are interested in the number of the slot into which the ball falls.
a. Define the sample space S.
b. Let A = {0, 00}. Give the value of P(A).
c. Let B = {14, 15, 17, 18}. Give the value of P(B).
d. Let D = {x : x is odd}. Give the value of P(D).
Answer:
Follows are the solution to the given points:
Step-by-step explanation:
For point a:
Space for results All possible outcomes are:
[tex]\to O = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,}[/tex]
[tex]17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, \\ 29, 30, 31, 32, 33, 34, 35, 36, 0, 00}[/tex]
For point b:
[tex]\to P(A) = \frac{ \text{ \# of outcomes in A}}{ \text{ \# Total outcomes}} = \frac{2}{38} = 0.052[/tex]
For point c:
[tex]\to P(B) = \frac{ \text{ \# of outcomes in B}}{\text{ \# Total outcomes}} = \frac{4}{38} = 0.105[/tex]
For point d:
We consider that in D there are 18 elements (only Odd numbers in the range 1 to 36)
[tex]\to P(D) = \frac{ \text{\# of outcomes in D}}{\text{\# Total outcomes}} = \frac{18}{38} = 0.473[/tex]
Two cross roads, each of width Sm, run at right angles through the
centre of a rectangular park of length 70m and breadth 45m and
parallel to its sides
On the basis of the above information, answer any four of the
following questions
Answer:
Rs 57750
Step-by-step explanation:
width =5 m
length of first parallel road 70 m
area of first road 70×5=350 sq.m
length of second road 45 m
area of second road =45×5=225 sq.m
area of the common part of cross road with 5 m width that lies at the
center of the park 5×5 = 225 sq.m
area of roads = area of first road +area of second cross road−common area
=(350+225)−25
=575−25
=550sqm
cost of the construction per sq.m =Rs.105
total cost =550×105=Rs 57750
Find 2/3 of 24
Help ASAP plz!! Got to get finished tonight
Answer:
16
Step-by-step explanation:
[tex](\frac{2}{3} )*24=16[/tex]
Find the inverse function of the function f(x) = zx + 7.
Answer:
Division
Step-by-step explanation:
You divide f by x and since you have to do the same thing you did to f on the other side you divide zx by x which also cancels out x on both sides. which would leave you with f = z + 7. (I'm sorry if i'm wrong)
Hunter took a test With 28 questions. If he answered of 2/7 of the questions correctly, how many did he
get wrong?
Answer:20
Step-by-step explanation: If you have a calculator its easy
Answer:
28.5% or you can divide to get your answer
Step-by-step explanation:
so first all you have to do is figure out what 2/7 Is, 2/7= 28.5%
geometry please help :( so stuck in this topic
Answer:
a (6,-3)
b (9,0)
c (5,1)
Step-by-step explanation:
The sum of the opposite of a number and six is less than or equal to five.
Answer:
-x+6< 5
there is a line under the less than symbol
Step-by-step explanation:
The mathematical expression is;
⇒ - x + 6 ≤ 5
What is Inequality?
A relation by which we can compare two or more mathematical expression is called an inequality.
Given that;
The algebraic expression is,
''The sum of the opposite of a number and six is less than or equal to
five.''
Now,
Let a number = x
The, The opposite of a number = - x
So, We can formulate;
⇒ - x + 6 ≤ 5
Thus, The mathematical expression is;
⇒ - x + 6 ≤ 5
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You deposit $3000 in an account earning 5% interest compounded monthly. How much will you have in the account in 15 years?
Answer:
9000
Step-by-step explanation:
Answer:
6236.78454 or 6236.78
Step-by-step explanation:
Use formula A=P(1+r)^t
A=3000(1+0.05)^180/12
*convert 15 years to moths* 180 months
A=3000(1.05)^180/12
A=3000(2.07892818 )
A=6236.78454 or 6236.78
Hope this helps ^-^
Three angles on a line have a ratio of 3:4:5. What are the measures of the three angles
Answer:
3 + 4 + 5 = 12
180÷12 = 15
for 3 it will be 3×15=45
for 4 it will be 4×15 =60
for 5 it will be 5×15 =75
4. One printing machine printed 1920 books in 40 hours this week. A
second printing machine printed for 30 hours this week but printed books
at twice the hourly rate of the first machine. How many books did the
second machine print this week?
Six out of the 12 members of the school choir boys. In the simplest form, what fraction of the choir is boys? Pls help out with this question
Find the sum:
1. 23.456 + 3.0034
Answer:
26.4594
Step-by-step explanation:
I mean im not sure i can teach you addition
Find the length of AC.
Answer:
D. 8 cm
Step-by-step explanation:
Reference angle = 60°
Opposite side = BC = 8√3
Adjacent side = AC = ?
Thus:
Tan (60) = opp/adj
Tan (60) = (8√3)/AC
AC*Tan(60) = 8√3
Divide both sides by tan (60)
AC = (8√3)/Tan(60)
AC = (8√3)/√3 (tan 60 = √3)
AC = 8 cm
There is 4/5 pound of paper clips to share equally with 3 employees. What amount of paperclips will each employee receive?
Answer: 4/15
Step-by-step explanation: 4/5 divided by 3 is the same as 4/5 times 1/3 wich is the reciprocal of 3
The school that Kathryn goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 1 adult ticket and 8 student tickets for a total of $56. The school took in $14 on the second day by selling 1 adult ticket and 1 student ticket. What is the price of each of on adult ticket and one student ticket
Answer:
Step-by-step explanation:
a+s=14
a=14-s
a+8s=56, using a from above in this equation gives
14-s+8s=56
14+7s=56
7s=42
s=6
a=14-s
a=14-6=8
So student tickets cost $6 and adult tickets cost $8.
common demominator of 1/3 and 3/4
Answer:12 is a common denominator!
Step-by-step explanation:
find the value of y plzzzz
Answer:
The exterior angles of a triangle will always add up to be 360. Since there are 2 angles 100 and 135, that's a total of 235. You would then subtract 360 - 235 which is 125.
y = 125
Can you guys help me and answer this math question below please I really need help I'll mark brainliest to whoever answers please help
Answer:
(-,+)
Step-by-step explanation:
Q2 is on the top left, with answer in form of (x,y). Top right is Q1, bottom left is Q3, and bottom right is Q4.
What is the surface area of this 3-D solid?
Answer:
I think its flat sorry if it's wrong
fill in the three answer below for the area of the composite shape
Answer:
A) 3 x 6 = 18 in^2
B) 11 x 8 x 0.5 = 44 in^2
C) 18 + 44 = 62 in^2
BRAINLIEST ! Find the equation of the line.
Answer:
y=-3x+7
Step-by-step explanation:
m=gradient=-3
can someone help me?
9514 1404 393
Answer:
tan B = 12/5cos B = 5/13sin B = 12/13Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you of the applicable ratios:
Tan = Opposite/Adjacent ⇒ tan B = CA/CB = 12/5
Cos = Adjacent/Hypotenuse ⇒ cos B = BC/BA = 5/13
Sin = Opposite/Hypotenuse ⇒ sin B = AC/AB = 12/13