Answer: 2000
Step-by-step explanation:
From the information, we are informed that a population of 500 doubles in size every 80 years. Therefore, the population in 160 years will have doubled twice i.e 160/80 = 2 times
First time doubling = 500 × 2 = 1000
Second time doubling = 1000 × 2 = 2000
A rectangular prism as a width of x inches, a length of x^2y
inches, and a height of y^2
inches. Which expression represents the volume in cubic inches of this rectangular prism?
A. x^2 y^2
B. 4x^2 y^2
C. x^3 y^3
D. 4x^3 y^3
Answer:
C
Step-by-step explanation:
The volume of a rectangular prism is given by:
[tex]V=\ell wh[/tex]
The width is x, the length is x²y, and the height is y². Thus, the volume is:
[tex]V=(x)(x^2y)(y^2)[/tex]
Multiply:
[tex]V=x^3 y^3[/tex]
Our answer is C.
James, Ryan and Jill share £120 in the ratio 3:2:1.
Find out how much each person recieves.
Answer:
James = £60, Ryan = £40 and Jill = £20
Step-by-step explanation:
James - 3, Ryan - 2 and Jill - 1
3 + 2 + 1 = 6
£120 / 6 = 20
Times 20 by each of the three numbers (3, 2 and 1)
3 x 20 = £60 (James)
2 x 20 = £40 (Ryan)
1 x 20 = £20 (Jill)
Answer:
James gets £60
Ryan gets £40
Jill gets £20
Step-by-step explanation:
Add up the ratio which would be 6 then divide it by the original sum which is £120 so the answer would be 20. You would then multiply 20 by each number so 20x3= 60. 20x2= 40. 20x1=20
All these should add up to your original sum and if they do you know you've done it right!
Add the integers.
-6 + (-4) =( ?
B-2
C 2
D 10
Answer:
-10
Step-by-step explanation:
Find the total surface area of the rectangular prism
Choose all the fractions that are in simplest form. 4/26 8/21 6/19 9/10 10/22
Answer:
8/12, 6/19 and 9/10!
Step-by-step explanation:
All of them cannot be simplified.
but the rest can like
4/26 can be simplified by 2
and 10.22 can be simplified by 2
Can anyone solve this by elimination?
10x + y=-30
-10x - 4y= 30
Put a digit in the gap, such that the answer is a whole number
10x+11=144...
Answer:
the answer is 1
Step-by-step explanation:
If you do 1441-11 you get 1430.
no other number gives you 0.
The sum of the digits of a two-digit nunber is 7. When you reverse the digits of the original number the new number is 27 more than the orginal number. What is the value of the original number?
Answer:
25
Step-by-step explanation:
2+5=7
25 reversed is 52
52-25=27
Answer:
25
Step-by-step explanation:
2+5=7
25 reversed is 52
52-27=25
Solve. 8 - 2d = c 4c + 3d = 2 c=4 d = -6 C=-4 d = 6 C=4 d = 6 C=-4 d = -6
Answer:
c = -4 d = 6
Step-by-step explanation:
8 - 2d = c 4c + 3d = 2
4(8 - 2d) + 3d = 2
32 - 8d + 3d = 2
32 - 5d = 2
-5d = -30
d = 6
8 - 2(6) = c
8 - 12 = -4 = c
Of the 16 students in the school orchestra, 12.5 % play the violin. How many students in the orchestra play the violin?
Answer:
2
Step-by-step explanation:
16 -> .16
.16×12.5=2
You just move the decimal point 2 times and multiply by the percentage
Answer:
2 students
Step-by-step explanation:
12.5% = 0.125
Multiply this by 16:
16 * 0.125 = 2
X - 10= 7 x=_____ help
Answer:
17
Step-by-step explanation:
Given that
a
= 6 cm and
b
= 11 cm, work out
θ
rounded to 1 DP.
Answer:
56.9°
Step-by-step explanation:
Assuming you mean a and b as the legs of a right triangle and θ as the bigger angle in a right triangle, we can work out easily that
cos θ = 6/11
so θ ≈ 56.9°(to 1 d.p.)
Brent's neighborhood is putting down new mulch at the playground and he is in Charge of buying the mulch. One bag covers 3 yd.². How many bags will he need?
Answer:
I don't know but 4 could be it
Step-by-step explanation:
Trevor has an investment worth $6,774.50. He made his only deposit in it 22 years ago. Given that the investment yields 2.7% simple interest annually, how big was the initial deposit?
a. $2,524.50
b. $4,024.03
c. $4,250.00
d. $11,404.88
Answer:
First, converting R percent to r a decimal
r = R/100 = 2.7%/100 = 0.027 per year.Solving our equation:
P = 6774.5 / ( 1 + (0.027 × 22)) = 4250P = $4,250.00The principal investment required to get a total amount, principal plus interest, of $6,774.50 from simple interest at a rate of 2.7% per year for 22 years is $4,250.00I do exams and quizzes if your interested!The initial deposit amount is $4,250.00.
Given that,
The worth of an investment is $6774.50The time period is 22 years. The rate of interest is 2.7%.Based on the above information, the calculation is as follows:
We know that
[tex]SI =P\times R\times T\\\\SI = P\times 2.7\% \times 22\\\\SI = 0.594P[/tex]
Now
Investment worth = P + SI
= P + 0.594P
= 1.594P
So,
1.594P = 6774.50
P = $4,250
Therefore we can conclude that the initial deposit amount is $4,250.00.
Learn more: brainly.com/question/13324776
410 is what percent of 65?
Answer:
15.85%
Step-by-step explanation:
you know you have 65 and you have 410 so you just multiply and try and figure out the ratio and how much percentage is out of it.
Find the solution to the system. Write your solution as an ordered pair (x,y) with no spaces, no solution, or infinitely many. 3x-2y=9 and x-y=5
Answer:
(-1,-6)
Step-by-step explanation:
Use substitution
y=x-5
3x-2(x-5)=9
3x-2x+10=9
x=-1
Plug it in
(-1)-y=5
-y=6
y=-6
BRAINLIST!!!
Rochelle heard on the radio that today's temperature is higher than it was yesterday. Yesterday's high temperature was reported as 73 °F.
Create an inequality on the number line of today's temperature.
Answer:
the inequality will be X > 73
Step-by-step explanation:
NEED HELP ASAP
The Ramirez Family is planning to put an above ground swimming pool in their back yard. Their yard is a 38 ft by 58 ft rectangle and the pool will be a circle with a diameter of 16 ft, as shown below. They will fill the rest of their yard with grass.
Answer: It would be approximately 2000 ft.
Step-by-step explanation:
What number can 2 and -6 both be divided by?
Answer:
2
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
because both are even numbers
hope this helps (:
pleaseeeee help answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!
Answer:
The measure of each exterior angle of a regular polygon is given by; Measure of each exterior angle =360°/n; where, n = number of sides of a polygon. One important property about exterior angles of a regular polygon is that, the sum of the measures of the exterior angles of a polygon is always 360°.
Answer:
160 degrees
I searched this up because I also have very little knowledge in these kinds of questions
Which value would make the inequality false? Inequality: a ≥ 18
33
17
21
19
Please help me
Answer: 17
Because it is less than 18
Making the equation false
The equation y = 1125(1.034)" can be used to approximate the number of cell phone users
who live in a certain city over time, where a represents the number of years after 2000.
Which of the following statements is true?
A
the rate of growth is 34%
B
there were 1125 cell phone users in 2000.
С
the rate of decay is 3.4%
D
In the year 2005, there were more than 1350 cell phone users.
Answer: B
there were 1125 cell phone users in 2000.
Step-by-step explanation:
The initial number of cell phone users is the front coefficient that is then multiplied by the growth factor.
So the initial number of cell phone users in 2000 was 1125.
7 + 2X = 5
3
..... zzzzzzzz
Answer:
23
Step-by-step explanation:
please mark brainliest
Answer:
x = 23
Step-by-step explanation:
7 + 2x = 53
7 + 2x - 7 = 53 - 7
2x = 46
2x / 2 = 46 / 2
x = 23
Hope this helps
Maybe brainliest?
12 + 5/3 b + 1 1 − 18 = 20
Answer: b = 9
Step-by-step explanation:
Given
12 + 5/3b + 11 - 18 = 20
Combine like terms
(12 + 11 - 18) + 5/3b = 20
5 + 5/3b = 20
Subtract 5 on both sides
5 + 5/3b - 5 = 20 - 5
5/3b = 15
Divide 5/3 on both sides
5/3b / (5/3) = 15 / (5/3)
b = 9
Hope this helps!! :)
Please let me know if you have any questions
11/5=_÷_
PLEASE MY SISTER NEEDS HELP TODAY!!!!!!!!
And also will get brainliest if you tell me how.
Answer:
11/5 = 11 ÷ 5
Step-by-step explanation:
11/5 is a fraction, and every fraction is just a division problem.
Answer:
11/5=11÷5.
You just take the numbers from the fraction and put them into a division equation.
(-4,-7); slope = 1
Write in slope intercept form
Answer:
y=x-3
Step-by-step explanation:
Find the volume of the sphere. Use 3.14 for π. Round to the nearest hundredth.
Answer:
555.37
Step-by-step explanation:
V = 4/3 πr^3
3x 1 1/2 enter as mixed number
Answer:
16 1/2
Step-by-step explanation:
3*11/2
=33/2
=16 1/2
A truck covers a distance of 16 km in 30 minutes.
How much distance can it cover in 5 hours while
travelling at the same speed?
Answer:
260 km for 300 mins
Step-by-step explanation:
16 km in 30 mins (half an hour)
There are 300 minutes in 5 hours
16 km for 30 mins
32 km for 60 mins
48 km for 90 mins
64 km for 120 mins
80 km for 150 mins
96 km for 180 mins
112 km for 210 mins
128 km for 240 mins
144 km for 270 mins
160 km for 300 mins
( all you need to do is keep on adding 16 km and 30 mins until you get to 5 hours/300 mins)
So the truck covers a distance of 260 km for 300 mins
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Gin bakes a perfectly circular pizza with a diameter of 10 inches, and he selst for $0.20 per square inch What is the cost for
the entire pizza? Express your answer to the nearest whole ola
Plz help
Answer:
$15.70
Step-by-step explanation:
The formula for a circle's area is πr^2 and so the radius is 10/2 or 5. 3.14*5^2 is 78.54. Multiply this by $0.20 to get the total cost of the pizza. The total cost is $15.70.