The difference btwn increasing a number by 20% and decreasing the same number by15% is 14 what is the number?
Answer:
The number is:
[tex]n = 40[/tex]Step-by-step explanation:
Let 'n' be the number
Increasing a number by 20% = (n + n×20/100)Decreasing a number by 14% = (n - n×15/100)As the difference between increasing a number by 20% and decreasing the same number by15% is 14.
Thus, the expression becomes
[tex]\left(n\:+\:\frac{n}{5}\right)\:-\:\left(n\:-\:\frac{3n}{20}\right)\:=\:14[/tex]
[tex]n+\frac{n}{5}-n+\frac{3n}{20}=14[/tex]
[tex]\frac{7n}{20}=14[/tex]
Multiply both sides by 20
[tex]\frac{7n}{20}\cdot \:20=14\cdot \:20[/tex]
[tex]7n=280[/tex]
Divide both sides by 7
[tex]\frac{7n}{7}=\frac{280}{7}[/tex]
[tex]n=40[/tex]
Thus the number is:
[tex]n = 40[/tex]Make a table of values for each equation.
Please hurry this is due tonight.
Answer:
Last two ones in X are 16 and 24
Y goes like this: -8, -5, -2, 1, 4
Step-by-step explanation:
Math
Can u help me please?
Answer:
0.407 because in the others 7 comes before the 0
7th grade math help me pleasee :))
Step-by-step explanation:
the terms are 2k,15,m,3,n,7p.
variables are k,m,n,p
coefficients are 2,and 7
constants are 15 and 3
What is the value of the expression
y(1/2+z)+6
When y=2 and z=3/4
A 57/8
B 19/2
C 17/2
D 22/3
Answer:
c. 17/2
Step-by-step explanation:
y(1/2 + z) + 6
2 (1/2 + 3/4) + 6
1 + 6/4 + 6
find common denominator
4/4 + 6/4 + 24/4 = 34/4 reduced to 17/2
just need an answer and explanation please and thank you
whats 1+1 ? please help my teacher isnt going to give me candy if i dont answer this :(
Answer:
2
Step-by-step explanation:
......... lol
you can have candy
Answer:
2
Step-by-step explanation:
1+1= 2that is an example
get that candy
Okay I have a lot of points so here you goooooo
Answer:
thanks for free points
Step-by-step explanation:
please follow me
pleaseeee helppp !!!!!! Will mark Brianliest !!!!!!!!!!!!
Answer:
Your answer is...
Step-by-step explanation:
what is the options???????
**due soon, pls help!**
Which expression is equivalent to (8x - 6) – (5x-4)?
A. 13x - 10
C. 3x - 10
B. 13x-2
D. 3x-2
Hey,
Answer : 3x-2
Here is the solution;
[tex](8x - 6) - (5x - 4) \\ = (8x - 6) + ( - 5x + 4) \\ = 3x - 2[/tex]
Good luck :)
Help me solve this problem please
Find the solution of the systems of equations
Answer:
-2,-2
Step-by-step explanation:
-
Answer:
................(-2,-2)
AJ
GET OUT OF MY HEAD
UR SO AWESOME
Answer:wwwwhhhhhaaaaaatttttt
Step-by-step explanation:
what is the value of x ?
Answer:
d
Step-by-step explanation:
Solve 3x+ k = c for x.
Answer:
x=(c-k)/3
Step-by-step explanation:
First, subtract k from both sides of the equation to get: 3x=c-k
Next, divide both sides by 3 to get x by itself=> 3x/3=c-k/3
The threes on the left side cancel, giving you x=(c-k)/3
60/ 7.55
(divided)
show work please
Answer:
I think the answer is 7.9
Step-by-step explanation:
u can change them into a mixed number and divide them
What is the length (in cm) of a rectangle with width 14 cm and area 168² cm
Answer:
12
Step-by-step explanation:
Area = length * width
length = area ÷ width
Could someone please help ;(
Answer:
a. 25/33
b. 36
c. 1/15
d. 35/12
e. 19/12
where do they go and explain why you decided to put it there
Answer:
0=3/8
1=1 5/8
2= 4/2
i think?
Step-by-step explanation:
3/8 is less than a whole so it is 0
1 5/8 and 4/2 is 2 if simplified and 1 5/8 is less than 2 so 1 5/8 is 1 and 4/2 is 2
Identify a pair of perpendicular lines in the given figure.
Question 1 options:
p and t
q and t
s and t
p and q
The money m (in £) Paul has to spend each week is his wage w (in £) subtract the tax t (in £) he pays on his income. Enter a formula for the money he can spend and enter how much he has to spend if he earns £160 a week and pays £38 in tax.
Answer:
m = £122
Step-by-step explanation:
m = w - t
Where,
m = money Paul had to spend each week (£)
w = Paul's wage (£)
t = tax paid on his income (£)
If w = £160 and t = £38
Find m
m = w - t
= £160 - £38
= £122
Paul has £122 to spend if he earns £160 a week and pays £38 in tax
Solve the equation for all real solutions.
k^2+8k+22=6
Answer:
Step-by-step explanation:
Here you go mate
step 1
k^2+8k+22=6 equation
step 2
k2+8k+22(-6)=6(-6) subtract -6
k2+8k+16=0
step 3
k2+8k+16=0 factor
(k+4)(k+4)=0
step 4
(k+4)(k+4)=0 set the numbers equal to zero
answer
k=-4
Hurryyyy I’m giving brainliest
Solve for y.
12 = 3y
Answer:
4
Step-by-step explanation:
3y=12 divide both sides by 3
y=4
Answer:
y = 4
Step-by-step explanation:
12 = 3(4)
12 = 12
John is buying food for his cat, Fluffy. Fluffy LOVES a fancy wet food which costs $1.50 per day. Fluffy will also tolerate dry food which is $0.75 per day. John wants to spend at most $9.00 on cat food each week
Answer:
The answer is below
Step-by-step explanation:
Let x represent the number of days that fluffy eats wet food in a week and y represents the number of days that fluffy eats dry food in a week.
Hence:
x + y = 7 (1)
Also, John wants to spend at most $9.00 on cat food each week. Hence:
1.5x + 0.75y ≤ 9 (2)
The list of possible points after solving graphically are:
(0,7), (6,0), (0,12) and (5, 2). If x,y > 0, then the point that satisfies the inequality is:
(5, 2) i.e. 5 wet food and 2 dry food
PLEASE ANSWER! DOING A TEST!
How many solutions does the following equation have?
3x + 7 + 2x = 5x + 7
One. Many. None
Answer:
Infinite/many
Step-by-step explanation:
3x + 7 + 2x = 5x + 7
3x + 2x + 7 = 5x + 7
5x + 7 = 5x + 7
5x - 5x + 7 = 7
7 = 7
Infinite solutions
Answer: many (all real numbers)
Step-by-step explanation:
1) add 2x and 3x to give you 5x
You now have 5x+7=5x+7
2) you can simplify this by subtracting 7 on both sides and dividing by 5
3) you are then left with x=x
HELP i’m confused can someone explain this please?
Answer:
intersecting lines will cross at the point
Rick is taking a 1-mile ride on his bicycle. For each rotation of his tire, he travels 72 inches. How many rotations will his tire make during the 1-mile trip?
Answer:
880 rotations
Step-by-step explanation:
Answer:
880 rotations
Step-by-step explanation:
find the slope of the line through (5,-5) and (11,8)
help i’ll give brainly i’m being timed
Answer: 18 and 37
Step-by-step explanation:
The answers should be 18 and 37, I am very sorry if these answers are incorrect.
