Find the percent change. State whether it is an increase or decrease. Round to the nearest tenth of a percent. From 50 to 42
Answers
Answer:
16% decrease
Step-by-step explanation:
Related Questions
I need help with part 2 please
Answers
Answer:
$65
Step-by-step explanation:
So we already determined that the total cost C to drive m miles is:
[tex]C=0.25m+40[/tex]
And we want to find the total cost of driving 100 miles.
So, substitute 100 for m and solve for C:
[tex]C=0.25(100)+40[/tex]
Multiply:
[tex]C=25+40[/tex]
Add:
[tex]C=\$ 65[/tex]
Therefore, it will cost $65 to drive 100 miles.
which expression represents exponential decay
A. Y=1/100 (31)x
B. Y=1/10 (3.1)x
C. Y=10(0.13)x
D. Y=100(1.03)x
Answers
Given:
The exponential equations in the options.
To find:
The equation which represents exponential decay.
Solution:
The general exponential equation is
[tex]y=ab^x[/tex]
where, a is initial value and b is growth rate.
If b<1, then it is an equation of exponential decay.
If b>1, then it is an equation of exponential growth.
In option A, b=31>1, i.e., exponential growth.
In option B, b=3.1>1, i.e., exponential growth.
In option C, b=0.13<1, i.e., exponential decay.
In option D, b=1.03>1, i.e., exponential growth.
Only [tex]y=10(0.13)^x[/tex] represents exponential decay.
Therefore, the correct option is C.
A positive number divided by a negative number will result in a ___ quotient.
Answers
Answer:
a negative quotient.
If a=2b then a:b= what ???
Answers
Answer:
[tex]2:1[/tex]
Step-by-step explanation:
[tex]a:b\\---\\\ 2b:b\\2:1[/tex]
HELP WILL GIVE BRAINLIEST!!Aditi has $50.00 in her wallet. She buys a shirt for $12.00 and also wants to buy some bracelets that are on sale for $0.60 each. The inequality below relates x, the number of bracelets she can buy, with her shirt purchase and the money in her wallet.
12 + 0.60 x less-than-or-equal-to 50
What is the greatest number of bracelets she could buy?
Answers
Answer:
The greatest number of bracelets she can buy is 63.
Step-by-step explanation:
12 + 0.60x ≤ 50
Since we already have the inequality, we have to start picking random numbers(until there are no more solutions):1.) 12 + 0.60(63) ≤ 50
12 + 37.8 ≤ 50
49.8 ≤ 50
Since 49.8 ≤ 50 is always true, there are infinitely many solutions.
Now we know that she can buy 63 bracelets, we have to figure out if she can buy more:2.) 12 + 0.60(64) ≤ 50
12 + 38.4 ≤ 50
50.4 ≤ 50
Since 50.4 ≤ 50 is false, there is no solution.
Answer:
63
Step-by-step explanation:
did the test on edge
You have a summer job detailing cars. You charge $5 to wash a car, $25 to wax a car, and $2 to vacuum a car. What algebraic expression models the total amount you can earn? If you wash 8 cars, wax 2 cars, and vacuum 6 cars, how much will you earn in all?
Answers
5x+25x+2x, $102
Step-by-step explanation:
5x+25x+2x
5(8)=40
25(2)=50
2(6)=12
add what's behind the equal signs to get $102 in all
Find the equation of the line that is perpendicular to -x+2y=11 and passes through the point (6,-5).
Answers
Step-by-step explanation:
m=-2
y+5=2(x-6)
y+5=2x-12
y=2x-17
Answer:
Step-by-step explanation:
2y = x + 11
y = 1/2x + 11/2
perp. -2
y + 5 = -2(x - 6)
y + 5 = -2x + 12
y = -2x + 7
insert two numbers between 54 and 2 so that the four numbers are in geometric sequence.
Answers
Answer:
2,6,18,54
How I got this answer:
Each term after the first is found by multiplying by a fixed, non-zero number called a common ratio.
step by step:
2×3=6
6×3=18
18×3=54
The common ratio is 3.
5+5 you get 39 points
Answers
Answer:
10
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Use a calculator to find this or simply use your figers and count 5 more starting from 5.
198,500 round to ten thousand
Answers
Answer:
200,000
Step-by-step explanation:
At least one of the numbers must be 0.
1. none
2. Hypothesis
3. Conclusion
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Answer:
The answer is 1.) None
Step-by-step explanation:
Hope this helps you :)
What is the value of x? (X+40)
Answers
-40
Step-by-step explanation:
at the moment your equation is x+40=0
you move the forty to the other side by subtraction and you get x= -40
Answer:
x=-40
Step-by-step explanation:
Find the value of x.
Answers
Answer:
x=20°
Step-by-step explanation:
This is actually simpler than it seems. Try redrawing (or maybe just imagine) that the only inscribed angle is x with the two lines going to the 40°. If we let 40°=θ, then: x=θ/2
This is actually true for any situation with inscribed angles, so you could use this to find w, y, and z as well.
Anyways x=(40°)/2=20°, so x=20°
please help :) Find the unknown length y in the following pair of similar triangles. y= ?
Answers
Answer:
Y should equal to 4.5
Step-by-step explanation:
Since they are similar triangles and each of the measurements on the second triangle are divided by two you would do the same for y
HELP PLEASE MY WORK HAS TO BE DUE IN A FEW MINUTES PLEASE HELP
Answers
Given: 2/3 every 30 seconds
If we cut 2/3 in half, we get 1/3. This would also mean we cut the time in half 30 / 2 = 15 seconds
Therefore, 1/3 of the length every 15 seconds.
15 + 15 + 15 = 45 seconds to go the full length of the path
Problem Solving Skills
Answer the questions below. Use the Problem Solving Skills that we discussed in class.
Look back in your notebook if you need a reminder.
7) Suppose that x and y are rational numbers such that x >y. Which of the following
inequalities must be true?
A. (x/>ly/
B. X'>y'
C. x+y > 0
D. X-y> 0
Answers
Answer:i think the answer is A(x/.ly/
Step-by-step explanation:
Answer:
D. x - y > 0
Step-by-step explanation:
Given:
x > y
Solution:
x - y > y - y . . . . . subtract y from both sides
x - y > 0 . . . . matches choice D
11 = 4/5h - 1 solve for h
Answers
Answer: h = 15
Step-by-step explanation: 4/5 x 15 = 60/5 = 12, 12 - 1 = 11.
Please answer fast will make brainlest
Answers
Answer:
C
Step-by-step explanation:
357,335 rounded to the nearest ten
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Answer:
357,340
35 is the tens place, and if it is 5 or larger we round up to in this case, 40
Answer:
357340
Step-by-step explanation:
Please help
A local business does $1200 in sales on Monday and $1400 dollars in sales on Tuesday.
Which of the following a correct sentence to describe the ratio of Monday to Tuesday?
Answers
Answer:
1200 : 1400 = 6 : 7
The ratio is not in lowest terms so we found an equivalent ratio by simplifying.
Solution:
We can simplify the ratio 1200 : 1400 by dividing both terms by the greatest common factor (GCF).
The GCF of 1200 and 1400 is 200.
Divide both terms by 200.
1200 ÷ 200 = 6
1400 ÷ 200 = 7
Therefore:
1200 : 1400 = 6 : 7
3(x+5) = -6x+6 two column proof
Answers
Answer:
- 1
Step-by-step explanation:
Step 1:
3x + 15 = - 6x + 6
Step 2:
9x + 15 = 6
Step 3:
9x = - 9
Answer:
x = - 1
Hope This Helps :)
A school bus requires 40 liters of fuel per week. If your school district runs 5,000 school buses, how many liters of fuel will the buses consume in 52 weeks? A. 15 million liters B. 10 million liters C. 10.4 million liters D. 200 million liters
Answers
Answer:
C. 10.4 million liters.
Step-by-step explanation:
1. First, you want to create an equation to help you solve this. You know that there are 5,000 school buses and they use 40 liters of fuel per week. So, you know that 5,000 · 40x would be the amount of fuel for x weeks (where x is the number of weeks).
2. To figure out how many liters would be used in 52 weeks, simply put 52 in for x. So, the expression is 5,000·40(52).
3. Multiply 40(52) to get 2,080. Your expression now looks like this: 5,000·2,080
4. Multiply 5,000(2,080) to get your answer of 10,400,000 liters.
Hope this helps! :) If you could give me Brainliest that would be super helpful!
Solve 20 - x/3 = x/2 , put the number only in the box.
Answers
Answer:
x = 24Step-by-step explanation:
[tex]20 - \frac{x}{3} = \frac{x}{2} [/tex]
Multiply through by the LCM that's 6 in order to eliminate the fraction
That's
[tex]6 \times 20 - 6 \times \frac{x}{3} = 6 \times \frac{x}{2} \\ 120 - 2x = 3x[/tex]
Using the addition property add 2x to both sides of the equation
That's
[tex]3x + 2x = 120 + 2x - 2x \\ 5x = 120[/tex]
Divide both sides by 5
[tex] \frac{5x}{5} = \frac{120}{5} [/tex]
We have the final answer as
x = 24Hope this helps you
Answer:
X=24
Step-by-step explanation:
20=x/2+x/3
20=1/2x +1/3x
20=5/6x
20÷5/6=x
X=24
The midpoint of AB is M(1, -3). If the coordinates of A are (4, -7), what are the
coordinates of B?
Answers
Two points (p, q) on a linear supply function are ($2.55, 98,000) and ($6, 195,500).
⦁ Determine the supply function q = f(p).
⦁ What price would result in supplier offering 145,000 units for sale?
⦁ Interpret the slope of the function.
⦁ Determine the p intercept.
⦁ Sketch f(p)
Answers
Answer:
q ≈ 28270p +25935$4.21 will give a supply of 145,000slope is the supply increase per dollar of pricep-intercept is about -$0.92a graph is attachedStep-by-step explanation:
The two-point form of the equation of a line is useful for this.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
q = (195500 -98000)/(6.00 -2.55)(p -2.55) +98000
q = 97500/3.45(p -2.55) +98000
q ≈ 28269.9p +25934.8
__
For a supply of 145000, the price would need to be ...
145000 = 28269.9p +25934.8
119065 = 28270p
119065/28270 = p = 4.21
A price of $4.21 will result in a supply of $145,000.
__
The slope is the additional amount supplied for each dollar increase in price.
__
The price value that results in a supply of zero is ...
0 = 28270p +25935
-25935 = 28270p
-25935/28270 = p ≈ -0.92
The p-intercept is about -$0.92.
a man whose income is rupees 576 a year spends rupees 432 a year what percentage of his income does he save
Answers
Answer:
He save 25% of his income.
Step-by-step explanation:
I guess I was help full for u
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lets take 576 as 100% so 576=100432=xfollowing unitary methodx=43200/576x=75%now saving %= 100%-75%= 25%Answer:
25%
Step-by-step explanation:
576-432=144
576=100%
144=?
144×100÷576=25%
When x=-2, the value of y is
Answers
Answer:
emaybe
Step-by-step explanation:
e hopeA train traveled at a constant speed for six hours and traveled a distance of 408 miles. What is the best estimate of the number of miles the train could travel in 2.5 hours? *A train traveled at a constant speed for six hours and traveled a distance of 408 miles. What is the best estimate of the number of miles the train could travel in 2.5 hours? *A train traveled at a constant speed for six hours and traveled a distance of 408 miles. What is the best estimate of the number of miles the train could travel in 2.5 hours? *A train traveled at a constant speed for six hours and traveled a distance of 408 miles. What is the best estimate of the number of miles the train could travel in 2.5 hours? *
if f(x)=2x-1 and g(x)=x^2-3x-2, find (f+g)(x)
Answers
Answer: (f+g)(x)=x²-x-3
Step-by-step explanation:
(f+g)(x) means f(x)+g(x). Since we are given f(x) and g(x), we can add them together.
(f+g)(x)=2x-1+x²-3x-2 [combine like terms]
(f+g)(x)=x²-x-3
Now, we know that (f+g)(x)=x²-x-3.
Find the distance between a point (6, 9) and a horizontal line at y = 5. A) 4 B) 11 C) 15 D) 14
Answers
Answer: A.) 4
Step-by-step explanation:
Given the following:
Horizontal line y = 5
Point (6, 9)
Distance between point (6, 9) and horizontal line y = 5
For point (6,9) ; x1 = 6, y1 = 9
Horizontal line : y = 5
Hence, distance between the two points will be the difference between the the y values :
y1 - y = 9 - 5 = 4
Hence, the distance between a point (6, 9) and a horizontal line at y = 5 is 4
Evaluate the expression and enter your answer in the box below.
[(8 + 10) /3] +3 • (7-3)
Answers
Answer:
38.6
Step-by-step explanation: