Answer:
r=8
Step-by-step explanation:
56=7r
first I simplified the equation to the form, which is simple to understand
56=7r
Then I move all terms containing r to the left and all other terms to the right.
-7r=-56
Next I simplified the left and right the side of the equation.
-7r=-56
Then i divided both sides of the equation by -07 to get r.
r=8
Someone plssss help
What's 27.63 subtracted by 60
Answer:
-32.37
Step-by-step explanation:
Answer:
-32.37
Step-by-step explanation:
Jeffrey is making an apple pie. He has 15 apples and 8 of them are red. What percent of the apples are red?
Answer:
53.333%
Step-by-step explanation:
Simple probability. 8 / 15 = 0.53333 = 53.33%
A soft drink company wants to increase the volume of the cylindrical can they sell soft drinks in by 25%. The company wants to keep the 5-inch height of the can the same. The radius of the can is currently 2.5 inches. Approximately how much should the radius of the can be increased
Answer:
The radius should be increased by 0.295 inches.
Step-by-step explanation:
Volume of a cylinder:
In a cylinder, in which the base has radius [tex]r[/tex], and the height is [tex]h[/tex], the volume is given by:
[tex]V = \pi r^{2}h[/tex]
In this question:
5 inch height, radius of 2.5 inches. So the volume is given by:
[tex]V = \pi (2.5)^2(5) = 31.25\pi[/tex]
We want to increase the volume by 25%.
So, the new volume is given by:
[tex]1.25*31.25\pi = 39.0625\pi[/tex]
With this volume, keeping the height, the radius should be of:
[tex]V = \pi r^{2}h[/tex]
[tex]39.0625\pi = 5\pi r^{2}[/tex]
[tex]r^{2} = \frac{39.0625}{5}[/tex]
[tex]r^{2} = 7.8125[/tex]
[tex]r = \sqrt{7.8125}[/tex]
[tex]r = 2.795[/tex]
The radius should be of 2.795 inches, which is an increase of 2.795 - 2.5 = 0.295 inches.
Answer:
https://slideplayer.com/slide/14286858/ copy paste the link it has a bunch of the answers but sadly no work on it.
Step-by-step explanation:
What operation is used to change a PERCENT to a DECIMAL?
Answer:
divide by 100 i think
Christi has $7,500 to invest. She was offered a simple annual interest rate of 4% for three years, but wants to look at other options. Which of the following changes will increase the interest she earns the most?
A-Simple interest, 4.2%, 3 years
B-Simple interest, 4.1%, 3 years
C-Simple interest, 4%, 3.25 years
D-Compound interest, 4%, 2.75 years
Christi can earn more interest if she invests $7,500 in Simple interest, 4%, 3.25 years, therefore, the correct option is c.
What is simple interest?Simple interest is a method of calculating interest on an amount for n period of time with a rate of interest of r. It is calculated with the help of the formula,
[tex]SI = \dfrac{P \times R \times T}{100}[/tex]
where SI is the simple interest, P is the principal amount, R is the rate of interest, and T is the time period.
The simple Interest she is currently getting,
[tex]SI = \dfrac{P \times R \times T}{100} = \dfrac{\$7,500 \times 4 \times 3}{100} =\$900[/tex]
A.)
[tex]SI = \dfrac{P \times R \times T}{100} = \dfrac{\$7,500 \times 4.2 \times 3}{100} =\$945[/tex]
B.)
[tex]SI = \dfrac{P \times R \times T}{100} = \dfrac{\$7,500 \times 4.1 \times 3}{100} =\$922.5[/tex]
C.)
[tex]SI = \dfrac{P \times R \times T}{100} = \dfrac{\$7,500 \times 4 \times 3.25}{100} =\$975[/tex]
D.)
[tex]CI = P(1+\dfrac{R}{100})^t -P = \$7,500(1+0.04)^{2.75}-\$7500 = \$854.16[/tex]
Hence, Christi can earn more interest if she invests $7,500 in Simple interest, 4%, 3.25 years, therefore, the correct option is c.
Learn more about Simple Interest:
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Evaluate the expression 8x for x=2
Answer:
16
Step-by-step explanation:
8x2
8x = 16
8 * 2 = 16
If "x" is equal 2.
Then 8 multiplied by 2 is equal to 16.
If f(x)= x/2-2 and g(x)= 2x^2+x-3, find (f+g)(x).
Answer:
2x^{2} + \frac{3}{2} x - 5
Step-by-step explanation:
(f+g)(x) = f(x)+g(x)
(f+g)(x)= [tex]\frac{x}{2} -2[/tex] + [tex]2x^{2} +x-3[/tex] = [tex]2x^{2} + \frac{3}{2} x - 5[/tex]
What goes in the box????
Answer:
It should be Factored 3(3x - 7).
What is the slope of a line perpendicular to the line whose equation is x-y=6
Answer:
1
hope this helps!!:)
Step-by-step explanation:
I need the simplified expression for this please
Clinton has a spinner labelled orange, blue, green and pink. He spins the spinner 100 times. He gets orange 33 times. What the experimental probability of him getting an orange?
Answer:
22%
Step-by-step explanation:
looked it up duhhhhhhhh
Answer:
The answer is 22%
Step-by-step explanation:
I took the test
Pls help me
What is the awners
Step-by-step explanation:
I didn't understand the question.
Do u want the function?
if so
[tex]y = ax + b[/tex]
at 0=0
at 1= 3
[tex]b = 0[/tex]
at 1=3
3=a
[tex]y = 3x[/tex]
if ur looking for something else, please tell me.
What is the slope of the line whose equation is 3x – 4y – 16 = 0
Answer:
Slop is 3/4
Step-by-step explanation:
3x - 4y - 16 = 0
- 4y = -3 x + 16
y= ( -3 / -4 ) x + 16 / ( -4 )
y= (3/4) x - 4
find x please!!
a.10
b.32
c.116
d.16
9514 1404 393
Answer:
(d) 16
Step-by-step explanation:
Angles opposite sides of the same measure are congruent. Here, the triangle is isosceles, so the base angles are congruent:
2x = 32
x = 16 . . . . . . divide by 2°
What is the "x" in the equation?
4.2 = x + 0.6
Three years ago joelene brought $650 worth of stock in a software company.since then the value purchase has been increasing at an average rate of 13 1/2% per year.How much is the stock worth now
Answer: stock<= gamestop stock
1.135(1.135(1.135(650))) USD
Step-by-step explanation:
Three pizzas are shared equally among 12 people.what fraction of pizza will each person get
Answer:
1/4
Step-by-step explanation:
3/12 =0.25
0.25 = 1/4
Answer:
there are three pizzas
it has to be shared among 12 peoples
so, 3/12 = 1/4.
1
Select the correct answer.
What is the range of the function x) = 12 - 3x for the domain (-4,-2, 0, 2,4}?
OA.
{24, 18, 12, 6, 20}
OB. {6, 12, 18, 24, 30}
OC. {-12, -6, 0,6,12}
OD.
{0, 6, 12, 18, 24}
Reset
Next
Answer:
so the right answer is of option D
Step-by-step explanation:
Have a great day and hope this helps!!!
In a lab experiment, the decay of a radioactive isotope is being observed. At the beginning of the first day of the experiment the mass of the substance was 1000 grams and mass was decreasing by 14% per day. Determine the mass of the radioactive sample at the beginning of the 10th day of the experiment. Round to the nearest tenth (if necessary).
Answer:
120.91 grams
Step-by-step explanation:
multiply the initial amount by the percent that will remain to the power of n-1, n being the term number, or how many days that have passed.
f(x)=1000(0.85)^14-1
The mass of the radioactive sample at the beginning of the 10th day of the experiment is 221.30 grams if the mass was decreasing by 14% per day.
What is exponential decay?During exponential decay, a quantity falls slowly at first before rapidly decreasing. The exponential decay formula is used to calculate population decline and can also be used to calculate half-life.
We have:
Mass of the substance = 1000 grams
Rate of decay = 14% per day = 0.14
Let's suppose the mass is m at the beginning of the 10th day of the experiment.
The equation for the exponential decay:
[tex]\rm E = m(1-r)^t[/tex]
[tex]\rm m = 1000(1-0.14)^1^0[/tex]
m = 1000×0.22130
m = 221.30 grams
Thus, the mass of the radioactive sample at the beginning of the 10th day of the experiment is 221.30 grams if the mass was decreasing by 14% per day.
Learn more about the exponential decay here:
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The sum of two numbers is 50 and the difference is 16. what are the numbers ?
Answer:
33 and 17
Step-by-step explanation:
Answer:
Step-by-step explanation:
21x29 step by step give brainliest
21x29=609
21
x 29
_______
189
+ 420
______
609
Answer:
609
Step-by-step explanation:
21 * 29 = 609
A 12-ft ladder leans against the side of a house. The bottom of the ladder is 6 ft from the side of the house. How high is the top of the ladder from the gro
If necessary, round your answer to the nearest tenth.
Answer:
10.4 ft
Step-by-step explanation:
think of it like a right triangle like in the picture with 12ft ladder as the hypotenuse
a²+b²=c²
6²+b²=12²
b²= 12²-6² =108
b=√108 = 10.392≈ 10.4 ft
Name all of the angles that have "V" as a vertex.
Answer:
angle 5, angle 4 and angle FVH.
Step-by-step explanation:
V is the highest point for all of these angles.
✨Why does gum run out of flavor so soon I WANT TO CHEW FOREVERRRR✨
Answer:
i know right it is stubid
Step-by-step explanation:
Answer:
I know bro them people are unforgivable for making the flavor not last long
Step-by-step explanation:
Comment if y'all know what i mean
Please help me guys I really need your help i'm stuck. Your help will be appreciated :)
Ok so these are the answers that I can choose~ (Please and thank you <3)
A.44°
B.134°
C.90°
D.34°
Answer:
44 degrees, or A is your answer.
Step-by-step explanation:
You know angle A which is 46 and angle C which is 90, now all you have to do is solve to find angle B.
90+46=136
All the sides have to add up to 180 so simply do 180 - 136.
That will get you 44.
Use shifts and scalings to graph the given function. The
p(x)= x² + 2x - 6
What is the original function?
y =
(Type an expression. Simplify your answer.)
Answer:
x^2+2x
Step-by-step explanation:
This function was shifted down 6 units.
It does not seem like this function was shifted horizontally since the x value is not being subtracted nor added inside the parentheses. Therefore, the original function would just be p(x) + 6, which would give us x^2+2x.
What is the equation of a line that has a slope of 0 and passes through (5, −2)?
y=-2
Step-by-step explanation:
if line has zero slope (b) it means that b is undefined.
if x=0 y=-2 because line has no slope. so b=-2
y=-2
The table below shows the number of days that a meteorologist predicted it would be sunny and the number of days it was sunny. Based on the data in the table, what is the conditional probability that it will be sunny on a day when the meteorologist predicts it will be sunny? If necessary, round your answer to the nearest percent.
The probability that it will be sunny when the meteorologist predicts it will be sunny is approximately ____%.
Answer:
570
Step-by-step explanation: