Answer:
Step-by-step explanation:
x+3*2=12-2*2
x+6=12-4
x+6=8
-6 -6
x=2
d)) The ratio of the monthly income and expenditure of Sunayana is 5 : 3. If she
increases her income by Rs 5,000 and decreases the expenditure by Rs 3,000, the
new ratio becomes 5:2. Find her income and expenditure.
Answer:
Sunayana's income is ₹25000 and expenditures are ₹15000.
Step-by-step explanation:
Let i denote the monthly income and e denote the expenditures.
We know that the ratio of the monthly income to expenditure is 5:3. So, we can write the following proportion:
[tex]\displaystyle \frac{i}{e}=\frac{5}{3}[/tex]
Let's multiply both sides by e. This yields:
[tex]\displaystyle i=\frac{5}{3}e[/tex]
We know that when the income is increased by 5000 and the expenditures are decreased by 3000, the new ratio is 5:2. So, we can write the following proportion:
[tex]\displaystyle \frac{i+5000}{e-3000}=\frac{5}{2}[/tex]
Let's multiply both sides by [tex](e-3000)[/tex]:
[tex]\displaystyle i+5000=\frac{5}{2}(e-3000)[/tex]
Since we know that [tex]i=\frac{5}{3}e[/tex], substitute:
[tex]\displaystyle \frac{5}{3}e+5000=\frac{5}{2}(e-3000)[/tex]
So, let's solve for the expenditures. Distribute the right:
[tex]\displaystyle \frac{5}{3}e+5000=\frac{5}{2}e-7500[/tex]
Subtract [tex]\frac{5}{2}e[/tex] from both sides:
[tex]\displaystyle -\frac{5}{6}e+5000=-7500[/tex]
Subtract 5000 from both sides:
[tex]\displaystyle -\frac{5}{6}e=-12500[/tex]
Multiply both sides by -6/5. So, the expenditures are:
[tex]e=\text{Rs }15000[/tex]
We can use the original ratio to find Sunayana's income:
[tex]\displaystyle i=\frac{5}{3}e[/tex]
Substitute 15000 for e. Evaluate:
[tex]\displaystyle i=\frac{5}{3}(15000)=\text{Rs }25000[/tex]
So, Sunayana's income is ₹25000 and expenditures are ₹15000.
And we're done!
Answer: Income = 25000, Expenditures = 15000
Step-by-step explanation:
A ratio of 5:3 can also be written in fraction form as [tex]\dfrac{5}{3}[/tex] (which is in simplified format from [tex]\dfrac{5x}{3x}[/tex]).
Adding 5000 to 5x results in 5x + 5000
Subtracting 3000 from 3x results in 3x - 3000
--> [tex]\dfrac{5x+5000}{3x-3000}[/tex]
The new ratio of 5:2 can be written in simplified fraction form of [tex]\dfrac{5}{2}[/tex].
Set the fractions equal to each. Then cross multiply and solve for x.
[tex]\dfrac{5x+5000}{3x-3000}=\dfrac{5}{2}[/tex]
5(3x - 3000) = 2(5x + 5000) Cross multiplied
15x - 15000 = 10x + 10000 Distributed
5x - 15000 = 10000 Subtracted 0x from both sides
5x = 25000 Added 15000 to both sides
x = 5000 Divided 5 from both sides
The original ratio of 5 : 3 --> 5x:3x
where 5x is the income and 3x is the expenditures results in:
income = 5x expenditures = 3x
= 5(5000) = 3(5000)
= 25000 = 15000
What is the rate of change of this table?
Answer:
- 6
Step-by-step explanation:
The rate of change of the values is the slope m
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 2, 32) and (x₂, y₂ ) = (0, 20) ← 2 ordered pairs from the table
m = [tex]\frac{20-32}{0+2}[/tex] = [tex]\frac{-12}{2}[/tex] = - 6 ← rate of change
If <3=50, then find the rest of the angles
Antoine made $33,284 last year. He received a 4.5% annual raise.What will his new salary before the coming year
Answer:
$34781
Step-by-step explanation:
Describe the graph of the inequality x > -1.
Answer:
See below
Step-by-step explanation:
Given
Inequality x > -1This inequality covers the interval greater than - 1
( - 1, + oo)Its graph covers the space to the right from the point -1
The vertical line - 1 is a dotted line as - 1 is nor included
simplify 18 over 3/4
Answer:
What is 18/4 Simplified? - 9/2 is the simplified fraction for 18/4.
Step-by-step explanation:
Answer:
- 9/2
Step-by-step explanation:
-136 = 8(m - 1)
[tex] - 136 = 8(m - 1)[/tex]
5. What is the total cost of 4.3 pounds of flour at $1.10 per pound and 0.5 pounds of baking soda at $0.82 per pound?
Answer:
$4.73 for the flour and $0.41 for the baking soda $5.14 together
Step-by-step explanation:
Answer: .....
Step-by-step explanation:
Solve the equation for a
5n + 34 = -2(1 - 7n)
a equals
Answer:
n = 4
Step-by-step explanation:
Where's a or did you mean n?
Answer:
n=4
Step-by-step explanation:
5n+34=-2(1-7n)
1. So first expand.
5n+34=−2+14n
2 Regroup terms.
5n+34=14n−2
3 Subtract 5n from both sides.
34=14n−2−5n
4 Simplify 14n-2-5n to 9n-2.
34=9n−2
5 Add 22 to both sides.
34+2=9n
6 Simplify 34+2 to 36.
36=9n
7 Divide both sides by 9.
36/9=9
8 Simplify 36/9 to 4
4=n
9 Switch sides.
n=4
Find f(-1) if f(x)=3x^3 + 5x^2
Answer:
2
Step-by-step explanation:
f(x) = 3x^3 + 5x^2
f(-1)
so just substitute in the value -1 for x, and solve
f(-1) = 3(-1)^3 + 5(-1)^2
= 3 * -1 + 5 *1
= -3 + 5
= 2
The Frosty Ice-Cream Shop sells sundaes for $4 and banana splits for $6. On a hot summer day, the shop sold 8 more sundaes than banana splits and made $182. How many sundaes did they sell?
Answer:
23
Step-by-step explanation:
Answer:
They sold 48 sundaes.
Step-by-step explanation:
A store sells a 33-pound bag of oranges for \$ 3.60$3.60 and a 55-pound bag of oranges for \$ 5.25$5.25. What is the difference between the price per pound for the 33-pound bag of oranges and the price per pound for the 55-pound bag of oranges?
Answer:
0.01364
Step-by-step explanation:
It is given that,
A store sells a 33-pound bag of oranges for $3.60 and a 55-pound bag of oranges for $5.25.
Price per pound of 33 pound bag is 3.60/33 = 0.10909 price per pound
Price per pound of 55 pound bag of oranges is 5.25/55 = 0.09545 price per pound
Difference between price per pound for the 33-pound bag of oranges and the price per pound for the 55-pound bag of oranges is :
D = 0.10909 - 0.09545
D = 0.01364
Therefore, this is the required solution.
Enter your responses in the blank.
T= 2x + 3y - 2
____=3y
- 2x = 3y - 2
____ = y
Mr. Jones teaches 154 students in 7 classes. How many
students does he have per class? (per single class – unit
rate)
Please help mee
What is the slope of the line that passes through points (-6,-7) and (-24,-7) . Write your answer in the simplest form
Answer:
The slope of the line passing through both points is 0
Step-by-step explanation:
Mathematically, we can calculate the slope as follows;
m = (y2-y1)/(x2-x1)
where (x1,y1) = (-6,-7)
(x2,y2) = (-24,-7)
Thus m = (-7 -(-7))/(-24 + 6) = 0/18 = 0
The slope of both is 0
Use the distributive property to write an equivalent expression -3(-5x+7)
Answer:
15x - 21
Step-by-step explanation:
-3(-5x+7)
you sidtribute the 3 to both numbers by multiplying both the -5 and the 7 by -3
-3 x -5x = 15x (remember, a negative times a negative equals a positive)
-3 x 7 = -21 (A negative times a positive equals a negative)
15x - 21
What is the slope of the line that passes through the points (-4,-2) and (-4,-22)
Answer:
It's a line parallel to the y-axis
Step-by-step explanation:
Note that the similar x value in both coordinates.
Then it's a line drawn parallel to the y-axis
Therefore, the slope is infinite as it makes a right angle with the x-axis.
QUESTION 7, Saturday, October 10th, 2020
I have some geometry questions today. Please include your thoughts or reasoning with your answer. Please ignore the answer I selected for it was not an purpose. Thanks!
Answer:
DE≅JK
Step-by-step explanation:
already have aa need the side after or before the 2 angles
Answer:
DF≅JLStep-by-step explanation:
We have one side and one angle, need one more side such that the angle is between those sides. It will make SAS congruency
So required sides are
DF≅JLPLS HURRY!!!!!!!!
The members of set A are the integer solutions of the inequality 2x−5≤11 and the members of set B are the integer solutions of the inequality −2x+7≤−9. What is one member of the intersection of A and B?
HOPE IT HELPS YOU!!!
The distance, D, travelled by a particle is directly proportional to the square of the time, t, taken. When t = 40, D = 30. find a formula for D in terms of t. Calculate the value of D when t = 64
Answer:
The formula for D in terms of t is D=0.01875t²
The value of D is 76.8
Step-by-step explanation:
See above for an image
Hope I helped!
After calculating by definition of proportionality, the value of D is 76.8
What is Proportional?Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.
Given that;
The distance, D, travelled by a particle is directly proportional to the square of the time, t.
So, We can defined as;
⇒ D = k × t²
Where, 'k' is constant of proportion.
Here, When t = 40, D = 30,
⇒ D = k × t²
⇒ 30 = k × 40²
⇒ 30 = k × 1600
⇒ k = 30 / 1600
⇒ k = 3/160
So, When t = 64, the value of D is,
⇒ D = 3/160 × 64²
⇒ D = 76.8
Learn more about the proportion visit:
https://brainly.com/question/1496357
#SPJ2
Simplify the expression (6^4)^2.What is the simplified form of this expression?
Answer:
6^8Step-by-step explanation:
Use of formula (a^b)^c = a^(bc)Simplify
(6^4)^2 = 6^(4*2) = 6^8Answer:
brainliest plsssssss
Step-by-step explanation:
(6^4)^2
=(6^4)^2
=(6^4) x (6^4)
=(6 x 6 x 6 x 6) x (6 x 6 x 6 x 6)
=6 x 6 x 6 x 6 x 6 x 6 x 6 x 6
=68
=1679616
A teacher has gallon of water. He pours the water into 5 glasses for children. Each child receives the same amount of water. There is no water left over. How much water, in gallons, does each child receive?
Answer:
ok ok i dont get it
the teacher has 1 gallon of water
the kids get the same amount from that one gallon
now how many GALLONS do EACH child recieve?
thats messed up
find the mistakes
A rental company rents a luxury car at a daily rate of 39.11 $ plus $.50 per mile. Is allotted100 $ for car rental each day. Write an equation to represent the cost C of renting a c ar and driving x miles. How many miles can travel on the 100$?
Answer:
- The equation that represent the cost C of renting a car and driving x miles is C = $39.11 + $0.50x
- $100 can travel 121.78 miles
Step-by-step explanation:
From the question, a rental company rents a luxury car at a daily rate of 39.11 $ plus $.50 per mile, that is
$0.50 is added to the initial $39.11 for every mile.
The equation that represent the cost C of renting a car and driving x miles is
C = $39.11 + $0.50x
Now, to determine how many miles 100$ can travel,
we will put C = $100, and determine x in the above equation
$100 = $39.11 + $0.50x
$100 - $39.11 = $0.50x
$60.89 = $0.50x
x = $60.89/$0.50
x = 121.78
Hence, $100 can travel 121.78 miles
HELP PLEASE HAVING BAD DAY
Jasmine drives every morning to her office that is 12 miles from her home.
If Jasmine's average driving speed is s mph, how many hours does it take her to drive from her home to the office?
Answer:
I need to know how fast the driver is going
Step-by-step explanation:
Answer:
12/s
Step-by-step explanation:
Help ! What’s the answer?
Answer:
48 feet
Step-by-step explanation:
6 feet wide
3 times as long as it's wide (width) = 6×3 = 18
18 + 6 + 18 + 6
= 24 + 24
= 48 feet
Gabby says that 8 is a common multiple of 16 and 24. Mark says that 8 is a common factor of 16 and 24. Who is correct?
Answer:
gabby is correct
Step-by-step explanation:
Which set of graphs can be used to find the solution set to 3 log2(x + 4) < 6?
It's D
Answer:
Graph D
Step-by-step explanation:
EDG 2021
HELPPPPPP PLZZ!!!!!!!
Answer:
B and E i think
Step-by-step explanation:
estimate 1/4 times 21
Answer:
63/4 or 15.75 or 153/4.
( -6)^0 solve this problem
Answer:
1
Step-by-step explanation:
Answer:
Anything raise to 0 is 1
so (-6)^0=1