Answer:
4 hour
Step-by-step explanation:
The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane i.e.
[tex]t\propto v^2[/tex]
Here, t₁ = 5 h, v₁ = 950 km/h, v₂ = 850 km/h, t₂=?
[tex]\dfrac{t_1}{t_2}=\dfrac{v_1^2}{v_2^2}\\\\t_2=\dfrac{t_1v_2^2}{v_1^2}\\\\t_2=\dfrac{5\times (850)^2}{(950)^2}\\\\t_2=4\ h[/tex]
If the speed is 850 km/h then the time is 4 h.
Fifty less than four times a number is ten. What is this number?
Let the number be x.
The equation is:
4x - 50 = 10
=> 4x = 10 + 50
=> 4x = 60
=> x = 60/4
=> x = 15
So, the number is 15.
Is this relation a function? Justify your answer.
10
9
8
7
6
5
4
.
3
2.
1
1
2
3
4
5
6
7
8
9 10
A. No, because two points with the same y-value have different x-
values.
B. No, because two points with the same x-value have different y-
values.
C. Yes, because every x- and y-value is positive.
D. Yes, because the number of x-values is the same as the number of
y-values
Answer:
D for every input there is one output
find what percent of 570 is 190
Answer:
190/570
Step-by-step explanation:
190/570
Write a division problem such that the quotient is the same as 3/8 ÷ 3/5
Answer:
5/18 ÷ 4/9
Step-by-step explanation:
because 3/8 ÷ 3/5 equals to 5/8 and 5/18 ÷ 4/9 also equals to 5/8
Answer:
give me brainliest for a free cookie!
Step-by-step explanation:
I’m so confused help me out
Answer:
chicken nuggest
Step-by-step explanation:
becasue i hungryThis hanger is in balance. There are two labeled weights of 4 grams and 12 grams. The three circles each have the same weight.
Answer:
8/3
Step-by-step explanation:
Answer:
8/3
Step-by-step explanation:
Mr. Li's bulletin board has area 25 square feet and it is 8 feet long.
What is the width of the bulletin board?
Answer:
3.125
Step-by-step explanation:
Well first you would take 25 and divide it by 8. Once divided you con know what the width is of the bulletin board.
What is the solution to the system of equations below?
4x - 2y = -4
8x - 4y = 4
PLEASE ANSWER WILL GIVE BRAINLIEST TO FIRST ANSWER
Answer:
C, D
Step-by-step explanation:
Because if you're going to make 75 bouquets, you need to distribut the 75 to each plant part.
C is if you did that directly, D is if it was shown with the distributive property
please help please help please help !!!!!!!
Answer:
Step-by-step explanation:
The graph below shows what you are given. The equation is actually y = x-4
HELP FIRST GETS BRAINLY
Answer:
3/21 most simplest form is 1/7
Step-by-step explanation:
Justin needs to make 80 illustrations for an art book. He has made 40% of the illustrations. How many illustrations does he still need to make?
5 3/9 - 2 8/9 simplified
Answer:
2 4/9
Step-by-step explanation:
Consider that a population of fruit flies grew in a 40-day experiment. Average rate of change: 9 flies/day. Find the average growth rate from day 30 to day05
Answer: Average Growth Rate is 24.19%
Step-by-step explanation:
Given that;
Average rate of change = 9 flies/day
Average growth rate of change = ?
we can determine the average growth rate of change from the expression;
Average Annual Growth Rate = [((Present Value - Past Value)^1/N) - 1 ] × 100%]
Now our present value; 30th day = 9 × 30 = 270
past value; 05th day = 9 × 05 = 45
the value of N = 30 - 5 = 25
so we substitute
Average Annual Growth Rate = [((270 - 45)^1/25) - 1 ] × 100%]
= ([1.2419 - 1) × 100]
= 24.19%
Therefore Average Growth Rate is 24.19%
HELPWhich of the following number sentences is an example of the identity property of addition?
16 * 0 = 0
8 + 0 = 8
1x4=4
1+11 = 11 + 1
Answer:
11+11=11+11 i think
Step-by-step explanation:
Rachel has $1.32 in pennies and nickels. She has twice as many nickels as pennies. How many nickels does she have?
Answer:
wwwww
ww
Step-by-step explanation:
ww
Amelia rented a dvd and it was due to be returned on 26 november
she actually returned it to the shop on 26 december
the rental shop applies a fine for 9p for every day the dvd is overdue
work out the total fine paid by amelia
give your answer in £?
Step-by-step explanation:
9p*30days= 45p
45÷100=0.45£
The correct answer would be No fine is paid if the DVD is returned by the due date, because the first 0 means it is 0 days overdue, so it is returned on time, and the second 0 means the fine would be $0!!
which integer is the smallest?
A: 0
B: 29
C: -30
D: -1
Answer:
-30
Step-by-step explanation:
0 is greater the -30 and -1 but less then 29
29 is greater then 0, -30, and -1
-1 is less the 0 and 29 but greater then -30
-30 is less then 0, 29, and -1
from greatest to smallest
29, 0, -1, -30
-30 is the smallest integer
Answer it for Brainliest *URGENT*
Answer:
Step-by-step explanation:
A = π r²
A = 11²π - 3²π = ( 121 - 9 ) π = 112 π ≈ 112 × [tex]\frac{22}{7}[/tex] = 352 cm²
( 112 × 3.14 = 351.68 cm²)
The common end point of an angle
The common endpoint is called the vertex of the angle, and the rays are called the sides of the angle.
hope this helped
Find the value of 2a2 + 5b2 when a = -6 and b = 2
Answer:
92
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASStep-by-step explanation:
Step 1: Define
2a² + 5b²
a = -6
b = 2
Step 2: Evaluate
Substitute: 2(-6)² + 5(2)²Exponents: 2(36) + 5(4)Multiply: 72 + 20Add: 92PLEASE ANSWER
During a flu epidemic the number of sick people triples every week what is the growth rate as a percent ?
Answer:
2 or 200%
Step-by-step explanation:If the growth rate doubled every week, it would grow by 100% per week. Since the growth rate triples every week, it grows by 200% per week. This is easy to see..... If 1 person is sick at the start.......by the end of the first week, 2 more would be sick. And 2 is 200% of 1. So, 3 people are sick at the end of the first week- triple that of the start. At the end of the second week, 6 more would be sick , and 6 is 200% of 3. So, 9 people total are sick at the end of the second week - triple that of the beginning of the second week
PLS HELP MEH!!!
Evelyn has $524.96 in her checking account. She must maintain a $500 balance to avoid a fee. She wrote a check for $32.50 today. Write and solve an inequality to solve for the least amount of money she needs to deposit to avoid a fee. (2 points)
A. 524.96 − 32.50 + x ≥ 500; x ≥ $7.54
B. 524.96 − 32.50 + x ≤ 500; x ≤ $7.54
C. 524.96 + 32.50 − x ≥ 500; x ≥ $57.46
D. 524.96 + 32.50 − x ≤ 500; x ≤ $57.46
Answer:
im sure its B
Step-by-step explanation:
524.96 - 32.5 = 492.46 500 is greater
what is the sulotion of 3^2-[3-4(8-2^2]^2
Answer:
i hope your haveing a good day try caculater i dont know
Step-by-step explanation:
125 centimeters to 87.5 cenitimeters
Answer:
30
%
d
e
c
r
e
a
s
e
Step-by-step explanation:
What is the range?
5 7 10 7 3 10 9 1 1 6
Answer:
9
Step-by-step explanation:
10-1=9 thats how you find the range you do the highest number then the lowest number after that you subtract it
Find the indicated z-score shown in the graph to the right. Area = 0.1401
Answer:
Sorry i dont do math
Step-by-step explanation:
Help please Number 4!!! Please show me how you did it!!
A jacket is advertised to be 80% of the original price. It the original price is $350, what is the sale price?
Answer:
70$
Step-by-step explanation:
350 - 80%
Answer:
70
Step-by-step explanation:
350*80=28000
28000/100=280
350-280=70
GUYS PLEASE HELP:
Evaluate the function
f (x) = 2x+6 for:
f(-19) =
Answer:
-32
Step-by-step explanation:
f(x) = 2x + 6
f(-19) = 2*(-19) + 6
= -38 + 6
= -32
Answer:
-32
Step-by-step explanation:
f(x) = 2x + 6
f(-19) = 2*(-19) + 6
= -38 + 6
= -32