Answer:
1) x=√−y+5z or x=−√−y+5z
2) g=2x-4/x
Step-by-step explanation:
explanation for first problem:
Let's solve for x.
y=−x^2+5z
Step 1: Flip the equation.
−x^2+5z=y
Step 2: Add -5z to both sides.
−x^2+5z+−5z=y+−5z
−x^2=y−5z
Step 3: Divide both sides by -1.
−x^2
−1
=
y−5z
−1
x2=−y+5z
Step 4: Take square root.
x=√−y+5z or x=−√−y+5z
explanation for problem 2:
Let's solve for g.
gx=2x−4
Step 1: Divide both sides by x.
gx/x = 2x-4/x
g=2x-4/x
What is 2/5 of a book to 1/2 of an hour as a unit rate?
Answer: 4/5 book per hour
Step-by-step explanation: in this question, we are to rewrite (2/5)/(1/2) as unit rate.
To write this as a unit rate, what we need to do is to divide 2/5 by 1/2.
That means 2/5 divided by 1/2
Removing the division and replacing with multiplication will give 2/5 * 2/1 = 4/5 books/hour
10x + 12 = [2+3(2x-4)+1]
Solve for x
Answer:
-21/4
Step-by-step explanation:
solve for w. need help pls
Answer:
w = -8
Step-by-step explanation:
19 = -9w - 5 + 6w
19 = -3w - 5
19 + 5 = -3w
24 = - 3w
w = -8
a clay model of a new car is 7 in. long if the car is 21 ft long how could you find the scale used to make the model
Answer:
The scale model = 1 :36 or 1 to 26
Step-by-step explanation:
A clay model of a new car is 7 in. long if the car is 21 ft long
Note that:
1 foot = 12 inches
21 foot =
Cross Multiply
21 foot × 12 inches
= 252 inches
Therefore, the scale =
7 inches : 252 inches
1 : 36
Can someone help me?
Answer:
Step-by-step explanation:
Yeah.I would be glad to.
What do you need help with?
Mike and Kate plan to save money for their wedding over a 20 month period. They will need to save $8,000 to help pay for the wedding. They set aside the same amount each month. After a year they saved $4,000. Mike and Kate know they must adjust their plan in order to meet their goal, so they came up with the following options:
Option A: Stay with saving the same amount they've been saving each month but postpone the wedding 2 months.
Option B: Increase the amount of money they save each month by $80 from what they've been saving.
Which of the following is a true statement?
Answer:
The Answer is Actually D. I just took the Test and got it Correct! have a Great Day.!!
Step-by-step explanation:
The true statement is that both plans will not amount to $8000 in the end
The target savings is given as:
[tex]Target = \$8000[/tex]
The amount saved after a year is given as:
[tex]Savings = \$4000[/tex]
Start by calculating the amount saved each month (by dividing the saved amount by 12)
[tex]Monthly = \frac{\$4000}{12}[/tex]
For option (A): To increase the wedding by 2 months.
This means that the duration of savings would be 22 months.
So, the estimated savings would be
[tex]Estimate= \frac{\$4000}{12} \times 22[/tex]
[tex]Estimate= \$7333[/tex]
For option (B): Increase savings by $80.
This means that they have 8 months to complete their savings
The estimated savings would be
[tex]Estimate= \$4000 + (\$80 + \frac{\$4000}{12}) \times 8[/tex]
[tex]Estimate= \$7307[/tex]
For both plans, the estimated savings are short of the target savings of $8000.
Hence, none of the plans would amount to $8000 in the end
Read more about estimates and predictions at:
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Plssssss help I’m timed
Answer:
D
Step-by-step explanation:
c=5/2-d/2
The / is the show fraction.
I am not 100% sure but it is what I am 99% sure about.
Fernando purchased 1 pound of dried cranberries and 4 pounds of almonds to make a trail mix. Cranberries cost $4 per pound and almonds cost $5 per pound. What is the price per pound of the trail mix?
Answer:
$4.80 per lb of trail mix
Step-by-step explanation:
Cranberries- 1lb-$4
Almonds- 4lbs-$20
4+20=24
4+1=5
24/5=4.80
Which one is correct?
Answer:
A
Step-by-step explanation:
15 POINTS!
What is the correct answer for Dean's problem? Explain where he went wrong.
Answer:
The slope is 5/-2.
Step-by-step explanation:
Slope is y1-y2 over m1-m2 (rise over run). The first ordered pair is -2 (m1) and 11 (y1). We then subtract the second ordered pair (4 (m2) and -4 (y2)) from the first.
11 - (-4) = 11 + 4 = 15
-2 - 4 = -6
Remember, slope is rise over run (y over x), so the slope is 15/-6. Now, we must simplify. 15/-6 = 5/-2
Dean went wrong because he thought that slope was run over rise (x over y). If he had switched the two numbers, his answer would have been correct.
What is the quotient of 3/4 1/6?
Answer: 9/2
......................
Mr. Santos wanted to know the height of the tree. He observed from a point A that the angle of elevation of the top of the tree is 36 degrees. He then moved backwards 50 ft away from the initial point A, the angle of elevation of the top of the tree was 22 degrees. Find the height of the tree.
Answer:
The height of the tree is approximately 45.51 ft.
Step-by-step explanation:
The given information are;
The angle of elevation of the top of tree is 36 degrees
The distance backwards Mr. Santos moved = 50 ft.
The new angle of elevation of the top of the tree = 22 degrees
Therefore, we have;
The angle opposite to the 50 ft. side = 180 - (180 - 36) - 22° = 14°
Therefore, we have, by sine rule;
50/(sin(14)) = X/(sin(22))
X = (sin(22)) × 50/(sin(14)) ≈ 77.42 ft.
The height of the tree, T = X × sin(36°)
T = 77.42 ft. × sin(36°) ≈ 45.51 ft.
The height of the tree is approximately 45.51 ft
whas does 16g+3<-17+15g equal
Answer:
g∠-20
Step-by-step explanation:
The temperature on Monday was 78.8°C. The temperature on Tuesday was 6.6°C less than the temperature on Monday. What was the temperature on Tuesday? -
Answer:
72.2
Step-by-step explanation:
Monday: 78.8
Tuesday: 78.8 - 6.6 = 72.2
7
When you raise a number to the
second power or a power of 2, you
could say that you
the
number
Answer:
is multiplied by itself.
Step-by-step explanation:
2 to the second power is four, and so is 2 times 2.
7 to the second power is 49, and so is 7 times 7.
They are the same thing.
Hope this helps!
Sue is offered a job reshelving books in the University of Montana library from noon until 1 p.M. Each Friday. Her reservation wage for this task is $10 per hour. If the library director offers Sue $100 per hour, how much economic surplus will she enjoy as a result of accepting the job? Now suppose the library director announces that the earnings from the job will be divided equally among the 400 students who live in Sue's dormitory. Will Sue still accept? Explain how your answers to parts a and b illustrate one of the incentive problems inherent in income redistribution programs.
Answer:
Step-by-step explanation:
Sue's initial wage per hour = $10
Sue's wage per hour after the increase = $100
a. Economic surplus to be enjoyed = $100 - $10
= $90
Sue would enjoy an economic surplus of $90.
b. No, because in this case the wage per hour for each 400 student would be;
= [tex]\frac{100}{400}[/tex]
= $0.25
= 25 cents
Redistribution of income is the act of equal sharing of wealth among a certain number of people.
The problem here is that Sue would feel cheated with the division of the earnings among 400 students, but very happy when her wages was increased.
Though the income incentive redistribution programs reduce poverty, but it may be unfair.
Victoria is making punch for a school party. The recipe calls for 2 cups of lemonade
Answer:
4 4 4 + 5 5 5
Step-by-step explanation:
you have $40 to spend on n gallons of gas that costs $3.25 per gallon.
Answer:
You can buy 12 gallons of gas.
Step-by-step explanation:
I took 40 and 3.25, then divided them.
I got a very large ugly decimal. When simplified it is 12.
if ribbon candy costs 2.50 per foot. How many feet can you buy if u have 11.25
Determine an interest rate less than 15%, a period of investment greater than two years, and a regular payment that will result in the total amount of interest you earn being equal to the total amount of money you put in?for example, under what conditions will you have a future value of $1 000 000, having earned $500 000 interest?)
Answer:
It will take 5.29 years to double our money if we invest $500 at 14 percent interest.
Step-by-step explanation:
Let we invest $500 with the interest rate of 14% ,
Now we will find the time it is going to take to double the money
here, we use the formula of compound interest [tex]A= P( 1+\frac{r}{n}) ^{nt}[/tex]
Here, A = the amount yielded,
P = principal,
r = interest rate ,
n = number of times per year,
and t = time invested.
Now, put A= 1000 , P= 500 , R= 0.14 T= x and N= 1
[tex]1000=500(1+ 0.14)^x[/tex]
[tex]1000=500(1.14)^x[/tex]
[tex]2=1.14^x[/tex]
[tex]\log_{1.14} (2)=x[/tex]
[tex]x=5.29[/tex]
so , It will take 5.29 years to double our money if we invest $500 at 14 percent interest.
Hence , the answer is 5.29 years .
Can y’all help I don’t know how to do these
Answer:
The measure of angle 6 is 62 degrees.
The measure of angle 3 is 64 degrees.
The measure of angle 8 is 54 degrees.
The measure of angle 4 is 64 degrees.
The measure of angle 12 is 32 degrees.
Step-by-step explanation:
Could anyone please help me with this for Calculus AB? I'm not entirely sure if the answer I put down is correct or not; I got some funky graphs for it though.
Hi there! :)
C. has both jump and infinite discontinuity.
Evaluate both piecewise functions at x = 1;
1 / (x + 1) = 1 / ((1) + 1) = 1/2
2x - 1 = 2(1) - 1 = 1
As the piecewise functions contain different y-values when evaluated at
x = 1, there is a jump discontinuity at x = 1.
However, the first function also contains a vertical asymptote or infinite discontinuity where it is undefined, or at x = -1. (1 / 0 = undefined). This means that the function also contains an infinite discontinuity.
Therefore, the correct choice is:
C. has both jump and infinite discontinuity.
The following table shows how far a runner has gone in t minutes. Which of the following equations represents this information?
A. t = 350d
B. t = 300d + 100
C. d = 350t
D. d = 300t + 100 Minutes (t) Meters (d)
2 700
3 1,050
5 1,750
10 3,500
Answer:
d = 350tStep-by-step explanation:
From the information given, we need to get the rate of change of distance which is the velocity (slope.)
velocity = Δd/Δt
v = d2-d1/t2-t1
from the table;
when t = 2, d = 700
when t = 3, d = 1050
v = 1050/750/3-2
v = 350/1
v = 350
Since v = d/t
350 = d/t
cross multiply
350t = d
Rearrange:
d = 350t
Hence the equation that represents the information is d = 350t
Answer:
D
Step-by-step explanation:
A=1/2bh for h
Need help
Answer:
2A/b = h
Step-by-step explanation:
A=1/2bh
Multiply each side by 2
2A = 2 * 1/2 bh
2A = bh
Divide each side by b
2A/b = bh/b
2A/b = h
Write an equation for the line that passes through (10, 17) and (20, 37)
The graph shows the relationship between the number of hours that Michelle has been driving and the distance that she has left to travel to get to her destination.
A graph on a coordinate plane titled Distance Remaining Over Time. The x-axis is labeled time (in hours), numbered 1 to 8, and the y-axis is labeled miles to destination, numbered 50 to 400. A straight line with a negative slope starts at point (0, 350) and ends at point (7, 0).
Which statement is true?
Answer:
B- For each hour that Michelle drove, she traveled an additional 50 miles.
Step-by-step explanation:
The statement that is true is For each hour that Michelle drove, she traveled an additional 50 miles.
What is a graph?The graph shows the relationship between a distance and the time .
With the graph interpretation, it display the relationship between the number of hours that Michelle is driving as well as the distance, and it can be deduced that it started at 0 hours, and distance of 350 miles
Hence, option B is correct because Michelle drove, an additional 50 miles since at zero y-coordinate was no more distance to cover.
Check the graph at the attachment.
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Find the missing number 390x__=390,000
Answers
A 10^2
B 10^3
C 10^4
D 10^5
Answer:
B. 10 to the third power
The required missing number in 390 x __ = 390,000 is 10³. option B is correct.
The missing number in the calculation 390x__=390,000 is to be determined.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Let the missing number be x,
Now the given expression becomes,
390 * x =390,000
x = 390,000 / 390
x = 1000
x = 10³
Thus, the required missing number in 390x__=390,000 is 10³. option B is correct.
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*NOTE YOU WIN 37POINT FOR ANSWERING** Clare mixes 2 1/2 cups of water with 1/3 cup of orange juice concentrate Han mixes 1 2/3 water with 1/4 a cup of orange juice concentrate which one tastes stronger?
Every day, you buy your lunch for $4 at school. How much money will you spend if you buy your lunch from Monday through Friday for three weeks?
Answer: 60
Step-by-step explanation: If you buy your lunch every day for 1 week, that would be 20 dollars spent. If you spend 20 dollars in 1 week, then 3 weeks would be 60.
Let me know if I'm right!
If you buy lunch everyday at school for $4 thats $20 a week, and $60 in 3 weeks.
The answer to this question is $60.
$4 x 5 = $20
$20 x 3 = $60
After a parade, a group of volunteers is helping to pick up the trash along a 2-mile stretch of a road. The group decides to divide the length of the road so that each volunteer is responsible for cleaning up equal-length sections. Find the length of a road section for each volunteer if there are 8 volunteers
Answer: 0.25 miles
Step-by-step explanation:
When solving a word question, look for certain words that tell you what you should be solving for, and how to solve it.
In this problem, the group DIVIDES the length of the road EQUALLY, which tells you that in order to solve the problem, you must divide the length of the road by the number of volunteers.
The road is 2 miles long, and there are 8 volunteers, so
8/2 = 0.25
Thus, each person must clean 0.25 miles of road.
Using proportions, it is found that the length of road section for each volunteer will be of 0.25 miles.
-----------------------
This question is solved by proportions, using a rule of three to find the length of the road assigned to each volunteer, as each volunteers will be assigned an equal length of the road.In total, the length of the road is of 2 miles. Thus, 8 volunteers are responsible for 2 miles. For how many miles will a single volunteer be responsible?-----------------------
The rule of three is given by:
8 volunteers - 2 miles.
1 volunteer - x miles
Applying cross multiplication:
[tex]8x = 2[/tex]
[tex]x = \frac{2}{8}[/tex]
[tex]x = \frac{1}{4}[/tex]
[tex]x = 0.25[/tex]
The length of road section for each volunteer will be of 0.25 miles.
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