I DON'T UNDERSTAND HOW THE ANSWER IS 15% PLEASE EXPLAIN
A pair of sunglasses is on sale for $17. Last week, the sunglasses were marked at a regular price of $20. What was the percent of change?
Answer:
15%
Step-by-step explanation:
17/20 the 17 is the part, and the 20 is the whole
17/20 = x/100
cross multiply
17*100= 1,700 divide by 20
=85
The price reduced to 85% the original price, but to find out how much it changed, you have to subtract the part from the whole meaning
100% - 85% = 15%
PLEASE HELP THIS IS VERY IMPORTANT I WILL GIVE YOU BRAIN THING IF ITS CORRECT (you can use a calculator if you want)
a is 321. b is 52 . GOOD luck !!!!!!!!!!!!!!!!!
What is ac equal to
Answer:
X=2.87
Step-by-step explanation:
Sin x= Opposite/hypotenuse
Sin35=x/5
X=5sin35
X=AC=2.87
What answer would this be?
I NEED HELP ASAP! PLEASE
Answer:
I believe it’s c tell me if i’m wrong
Step-by-step explanation:
A circular plate has a radius of 12 inches. Complete the table. Include a number and a unit in the last column.
Answer:
Area A = πr² 452.16 in²
Circumference C = π2r 75.36 in
Calculate the area of this trapezium.
6 cm
5 cm
4 cm
8 cm
Answer:
6cm is the correct answer
1. Which form shows the slope-intercept form?
y = mx +b
Ax + By =C
y-y1 = m(x-x1)
Answer:
y = mx + b
Step-by-step explanation:
b is your y intercept while m is your slope which is just rise over run.
What is the equation of the circle?
Answer:
x² + y² = 3
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ( where r is the radius )
Using Pythagoras' identity in right triangle CRT
CR² = 1² + ([tex]\sqrt{2}[/tex] )² = 1 + 2 = 3 ( take the square root of both sides )
CR = r = [tex]\sqrt{3}[/tex] , then
x² + y² = ([tex]\sqrt{3}[/tex] )² , that is
x² + y² = 3
Adam is going to invest $23,000 and leave it in an account for 19 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Adam to end up with $51,000?
Answer:4.2
Step-by-step explanation:
4.19122
Answer:4.2
Step-by-step explanation:
what is 5+5
=10 for me
Answer:
that will be 10?
Step-by-step explanation:
Answer:
5+5=10 is right
Step-by-step explanation:
please mark me brainliest
A bag with 5 pound of potatoes costs $3.20. How much do 12 pounds of potatoes cost at the same rate?
Answer:
$7.68
Step-by-step explanation:
You must find the rate first, so in order to do that you divide the price by the quantity which is
3.20/5
which equals .64 and this number is the cost of potatoes per pound so to find 12 pounds you do
.64 * 12
which equals 7.68
Answer: 7.68
Step-by-step explanation:
First you find the rate where you do 3.20/5 which equals .64
Then you multiply the 12 and .64 and get 7.68
PLS HELP AS SOON AS YOU CAN!
How many solutions does the equation 4y + 7 = 5 + 2 + 4y have?
A. One
B. Two
C. None
D. Infinitely many
Answer:
same line....infinite solutions
Step-by-step explanation:
4y + 7 = 5 + 2 + 4y...simplify
4y + 7 = 7 + 4y
What does f(2)=10 mean in the context of the situation?
Answer:
it means 2 × 5 = 10 is this good
3)If a prism has 5 sides for its base how many faces should the prism have?
0
1
5
10
..........................
Answer:
= -15.4
Step-by-step explanation:
-10.6-4.8
= -(10.6+4.8)
= -15.4
you basically just add the negatives.
i hope this helps :)
Answer:
-15.4
Step-by-step explanation:
Subtract the numbers -10.6 - 4.8 to get -15.4
If you have any questions revolving around this topic,feel free to ask me and i will be happy to help,Good luck!
How long will it take Eniola to save $5,000 if she started with $500 and found a rate of 6.2%? Round to the nearest whole number.
Answer:
the time period is 38.28 years
Step-by-step explanation:
The computation of the time period is shown below:
Given that
RATE = 6.2%
PV = $500
PMT = $0
FV = $5,000
The formula is shown below:
= NPER(RATE;PMT;-PV;FV;TYPE)
After applying the above formula, the time period is 38.28 years
Hence, in order to save $5,000 it would take 38.28 years
which table shows the function y=2x+4?
In the year 2000, the population of Virginia was about 7,400,000.
Between the years 2000 and 2004, the population in Virginia grew
at a rate of 5.4%. At this growth rate, the function f(x) = 7,400,000 (1.054)*
gives the population x years after 2000.
9. In what year will the population reach 15,000,000?
10. In what year will the population reach 20,000,000?
Answer:
Step-by-step explanation: 7,400,000/5.4%=13,703.7
grows by 13,703.7 every 4 years
7+7
Given that
X2: (20 – 3x) = 1 : 2
find the possible values of x.
Answer:
Step-by-step explanation: x^2 : (20 - 3x) = 1 : 2
2x^2 + 3x - 20 = 0
(x + 4)(2x - 5) = 0
Solution:
x = -4
x = 5/2
Answer:
x= 2.5
x= 2.5x = - 4
Step-by-step explanation:
1:2
x² : (20 - 3x)
x2 : x 1
2x² : 1(20-3x)
2x² : 20 - 3x
+3x , then - 20
2x² + 3x - 20 = 0
2 x - 20 = - 40
x to get - 40
+ to get 3
(8 x - 5 = -40 & 8 + - 5 = 3)
Split 3x into 8x & - 5x, then factorise:
2x^2 + 3x - 20 = 0
2x^2 + 8x - 5x - 20 = 0
2x(x+4) - 5(x + 4)
(2x-5) (x+4) =0
2x - 5 = 0
+5
2x = 5
÷2
x = 2.5
x+4=0
-4
x = - 4
x=2.5,-4
Hope this helps!
Rolling a 6 sided die. Find the probability the number rolled is less than 3 given that it’s a factor of 6.
( help please :) )
Answer:
33.333%
Step-by-step explanation:
a 6 sided die has the number 1,2,3,4,5,6. 2 are less than three so the chances of getting the of getting a number less than 3 is 2/6, simplified 1/3.
PLEASE HELP ASAP
Find the surface area and the volume of the cone:
*Hint: Remember that 10 is the slant height, not the cone height. Use Pythagorean Theorem to find
height.
Answer:
surface area= 301.6
volume=301.6 again Imao I'm not sure how right that is
Max and Jay Are running a lemonade stand they spent $12 on all the material and charge $1.50 for each cup of lemonade write an equation that will allow you to calculate the profit (P) if you are told the number of cups (c) that are sold.
Answer:
P = $1.50c - $12
Step-by-step explanation:
profit = total revenue - total cost
total revenue = price per cup x total cup sold = $1.5 x c = 1.5c
Cost = $12
PLEASE HELP!! ILL MARK BRAINLYEST!!
Evaluate 6C2 .
120
15
720
30
Answer: 15
Step-by-step explanation:
no
Answer:
15
Step-by-step explanation:
ITS RIGHT
Does the expression Y>2x-1 define a function?
Step-by-step explanation:
This is a polynomial, and every expression like y=p(x) , with p(x) a polynomial, is a function.how do you solve this??
Answer:
The sum of this entire line is 180, so to solve this we would subtract 20 from 180, which means x = 160.
(っ◔◡◔)っ ♥ Hope It Helps ♥
Which function represents the given graph?
O f(x) = 100 (3/5)^x
O f(x) = (100 ×3/5)^x
O f(x) = 100+ 3/5x
O f(x) = 100×(2/5)x
Answer:
A. f(x) = 100 · (3/5)^x
Step-by-step explanation:
Answer: edge 2021
Step-by-step explanation:
Those are the reasons when I put BD perpendicular to AC
Step-by-step explanation:
Actually, ∠BDA＋∠BDC=180°
2∠BDA= 180°(CPCTC)
∠BDA= 90°
This is how BD is perpendicular to AC
find the length of the missing side in the following examples
Answer: 1. 6.1
2. 13
3. 5.4
4. 5.7
5. 10.4
6. 31
Step-by-step explanation:
I got the values of the missing sides by doing the Pythagorean theoreom. Therefore, I had to find the length of the hypotenuse. a^2+b^2=c^2
a and b are the values of the sides given, and we have to find the value of c. So, for instance on number one 6 and 3 are a b. (6)^2+(3)^2= 45. Now we have to find the square root of 45. The square root of 45 is 6.7082039325.
So the value of the missing side in number one is 6.7.
In the image provided, the circle is centered at point W with ZX←→ and ZY←→ tangent to ⊙W at X and Y, respectively.
Given ∡XWY=75°, what is ∡XZY?
A. 105°
B. 150°
C. 75°
D. 15°
9514 1404 393
Answer:
A. 105°
Step-by-step explanation:
The external angle at Z is the supplement of the internal angle at W.
Z = 180° -75° = 105°
∠XZY = 105°