Answer:
$59.5
Step-by-step explanation:
Example 3
he two In a class of 60 students, 46 passed Biology
and 42 passed Chemistry. Every student
ariable passed at least one of the two subjects. How
many students passed in both subjects?
Solution
Let U = students in the class
cps
Answer:
28 students passed in both subjects.
Step-by-step explanation:
We solve this question treating each event as a Venn set.
I am going to say that:
Event A: Passed Biology.
Event B: Passed Chemistry.
46 passed Biology
This means that [tex]A = 46[/tex]
42 passed Chemistry.
This means that [tex]B = 42[/tex]
Every student passed at least one of the two subjects.
This means that [tex]A \cup B = 60[/tex]
How many students passed in both subjects?
This is:
[tex]A \cap B = A + B - A \cup B[/tex]
From the values we have above
[tex]A \cap B = 46 + 42 - 60 = 28[/tex]
28 students passed in both subjects.
3 ⅕ -⅔ divided by 2 ⅘
Answer:
160/196
Step-by-step explanation:
it would be easier if you converted all fractions to improper fractions
so 3 1/5 would equal 16/5 and 2 4/5 would equal to 14/5
[tex]\frac{14}{5} - \frac{2}{3}[/tex] : to solve this you would need the same common denomenator,
to do this you can multiply 5 and 3 by something to make the lowest common denominator, which would be 15
thus
multiplying first fraction by 3 and the second by 5
42/15 - 10/15 = 32/15
now 32/15 divided by 14/5
the rule for dividing fractions, is flipping the fraction which you will be using to divide, and then multiplying it to the first fraction:
[tex]\frac{32}{14}[/tex] multiplied by [tex]\frac{5}{14}[/tex]
thus, answer is 160/196
PLEASE HELP IMAGE ATTACHED⚠️⚠️⚠️⚠️⚠️
Answer:
A'(4, -3) ; T'(-1, 4)
Step-by-step explanation:
Multiply the coordinates by 1/2, or divide them by 2 to get the new points.
A(8, -6) ⇒ A'(4, -3)
T(-2, 8) ⇒ T'(-1, 4)
Help help help help help
Answer:
the answer would be 4m
hope this helped
Answer:
4m
Well there's 4 m's being added so to put it in simple terms, it would be 4m.
A grasshopper covered a distance of 6 yards in 10 equal hops How many yards did the grasshopper travel on each hop?
Answer:
0.6 yards
Step-by-step explanation:
6 yards/10 hops = 0.6 yards per hop
what is 50 x356 PLZ HELP MY ANSWER IS 178000 AM I RIGHT
Please help ASAP!!!
Answer:
Cry about it wah wah wahhhhhhhh
Step-by-step explanation:
A boat travels 176 miles in 13
hours (with a constant speed).
How far can it travel in 22 hours
(with the same speed)?
Answer:
297.84 miles
Step-by-step explanation:
176 miles in 13 hours is 13.5 miles per hour
13.5 * 22 = 297.84
(Take the=22/7)
curved surface area of cylinder with diameter 21cm and height 5cm.
Answer:
330cm²
Step-by-step explanation:
CSA of a cylinder = 2πrh
(r = d/2 = 21/2 = 10.5 cm)
Putting the values of 2πrh;
2 x 22/7 x 10.5 x 5
2 x 22 x 1.5 x 5 *(10.5/7 = 1.5)
330 cm²
Please help me I havent found answers any where and dont know how to do this. Help me please. I have posted this once and it seems to be very compcated.
30 okay P O I N T S
Do anyone know how to answer this?
Answer:
10
Step-by-step explanation:
Help me out please??
ILL GIVE BRAINIEST ANSWER IM IN A RUSH!!!!!PLEASE AND THANK YOU!
Answer:
I believe the answer is $52.46
Hope this helps :)
Write the dimensions of a rectangular prism or cube and find the surface area. Explain.
PLEASE HELP ASAP THANKS SO MUCH
solve by elimination
3x-y=14
5x+4y=12
Answer:
Step-by-step explanation:
Put the following equation in Standard Form:
(1/2)x - 4 = (2/3)y
Answer:x=4/3y+8
Step-by-step explanation:
Step 1: Add 4 to both sides.
Step 2: Divide both sides by 1/2.
Answer:
3x-4y =24
Step-by-step explanation:
hope this helped xoxo
Please help me with this.
Answer:
D
Step-by-step explanation:
I'm sorry if its wrong
Answer:
D im pretty sure
Step-by-step explanation:
he charges 75 dollars plus 40$ a hour and x is hours and y is the total fee
if its not then swy
what are the 2 reasons that the Louisiana purchase caused a debate in the usa
It was a debate between the northerners and southerners (forgive my spelling). The northerners feared the addition of more slave states and a corresponding lack of reprenestation of their intrests in the North. For the southern slave holders, new western lands would be a boon (helpful) to enslaved people and the Louisiana purchase threatened to entrench and expand their suffering to western territories.
I got this on Khan Academy
Subtract : 13.257 from 25.8
Pls Someone Help
Answer:
12.543
Step-by-step explanation:
A square pyramid is shown. What is the surface area of the pyramid? Enter your answer in the box.
Answer:
The surface area of the square pyramid is 34.63cm².
Step-by-step explanation:
[tex]A=a^{2} +2a\sqrt{\frac{a^{2} }{4} +h^{2} } =3^{2} +2[/tex]×3×[tex]\sqrt{\frac{3^{2} }{4} +4^{2} }[/tex]≈34.63cm^2
Which of the values in the set (2, 3, 4, 5) is a solution to the equation 2x + 4 = 10?
Answer:
3
Step-by-step explanation:
2x+4=10
2(3)+4=10 2*3 = 6
6+4=10
10 = 10
Please anyone help me on this
Answer:
Standard line equation:
y=ax+b
The point (5,1) is on the line. so :
1=a(5)+b → 1=5a+b
The point (1,-5) is also on the line. Then :
-5=a(1)+b → -5=a+b
Subtract the two equations in terms of a and b. we have:
6=4a → a=3/2 , b=-6.5
y=1.5x-6.5
what is the variable of 7m + 3
Answer:
M isn't it?
Step-by-step explanation:
7m+3
(move seven to the other side)
m=7-3
(7-3=4)
m=4
Moore has 20 songs. His friend bought him M more songs. Write an expression that shows how many songs Moore has now.
Answer:
20 + M = number of songs Moore has now
Step-by-step explanation:
Moore started with 20 songs, so you would need to add the number of songs his friend bought him (M) to the 20 that he already has which will show the total number of songs Moore has.
Find the length of JM
Answer:
16
Step-by-step explanation:
Answer:24
Step-by-step explanation:
:)
Write in standard notation. three million, five hundred eighty-one
thousand, seventy six?
Answer:
3.581076 × 10^6
Step-by-step explanation:
Your number is 3,581,076 now go 6 places towards the left that gives your answer.
Hope that helps
Find the missing terms in a proportion
[tex] 1. \\\frac{n }{5} = \frac{12}{30}[/tex]
Answer:
[tex] \frac{2}{5} [/tex]
What is the value of x in the equation 1.5(x + 4) -3 = 4.5(x-2)
Answer:
The answer to this equations would be 1.3 repeated i included a image with how to go about working the problem out
For to 30-60-90 triangle below, the length of side AB is 52 cm.
Find the length of CB.
PLZ
Answer:
Using 60°
Let side CB be x
Cos60= x/52
Cross multiply=
x= 52cos60
x= 26 cm
3/5 - 1/3
I need the answer in 1 seconds
Answer:
The answer is 0.26
Step-by-step explanation:
Answer:
4/15
Step-by-step explanation:
can u give brainly if its correct