Answer:
The percent of change is –12.5%.
Answer:
-800%
Step-by-step explanation:
1. you have to do 128-112 and you get 16.
2. you then take 128 and divide by 16 and you should get 8.
3. you take 8 and multiply it by 100 and you should get 800.
4. and since you are going from 128 to 112 you are decreasing so the final number will be negative.
hope this helped!
p.s it would be cool if you gave me brainliest.
What is the slope of a line perpendicular to the line whose equation is 2x+y=6. Fully reduce your answer
Answer:
The slope would be -2.
10x+28−3x=7x+38 Does this equation have one solution, infinitely many solutions, or no solutions? Explain your answer.
Answer:
No solution
Step-by-step explanation:
First we have to solve the equation;
10x + 28 - 3x = 7x + 38
Collect like terms;
7x + 28 = 7x + 38
Subtract 7x from both sides;
28 ≠ 38
No solution, because the number does not equal each other.
Robert can buy 12 balloons for $9. At this rate, how much will 50 balloons cost?
Answer:
At this rate, 50 balloons will cost $37.50.
What is the slope and y-intercept in the following equation? 15x - 3y = 21
Answer:
Slope: 5
Y-Intercept: -7
John lost 1.44 after a week of exercise. One kilogram is equal to approximately 2.2 pounds. Which measurement is closest to the number of pounds that john lost?
Given :
John lost 1.44 kg after a week of exercise.
One kilogram is equal to approximately 2.2 pounds.
To Find :
Which measurement is closest to the number of pounds that john lost.
Solution :
1 kg = 2.2 pounds .
Let, John lost x pounds.
x = 2.2 × 1.44 pounds
x = 3.168 pounds
Therefore, the number of pounds that john lost is 3.168 .
Hence, this is the required solution.
Given :
John lost 1.44 kg after a week of exercise.
One kilogram is equal to approximately 2.2 pounds.
To Find :
Which measurement is closest to the number of pounds that john lost.
Solution :
1 kg = 2.2 pounds .
Let, John lost x pounds.
x = 2.2 × 1.44 pounds
x = 3.168 pounds
Therefore, the number of pounds that john lost is 3.168 .
Hence, this is the required solution.
Use the following information to complete parts I, II and III.
1 hour = 3,600 seconds
1 year = 31,556,952 seconds
Part I: Use scientific notation to estimate the number of hours in one year.
Part II: Use scientific notation to calculate the exact number of hours in one year.
Part III: In two or more complete sentences, compare your answers to parts I and II. In your comparison, discuss similarities and differences in your answers.
Answer:
Part I: Use scientific notation to estimate the number of hours in one year
Using the conversion factors
Estimate using scientific notation
31,556,952 seconds = 3.2 * 10^7
3600 seconds = 3.6 * 10 ^2
1 year = 3.2 * 10^7 seconds * 1 hour/ 3.6 * 10 ^2 seconds
3.2 /3.6 =.88888 (repeating)
10^7 / 10^2 = 10^5
8.88888 * 10 ^5
8.888 * 10 ^4 hours
Part II: Use scientific notation to calculate the exact number of hours in one year.
31,556,952 seconds = 3.1556952 * 10^7
3600 seconds = 3.6 * 10 ^2
1 year = 3.1556952 * 10^7 seconds * 1 hour/ 3.6 * 10 ^2 seconds
3.1556952 /3.6 =.876582
10^7 / 10^2 = 10^5
.876582 * 10 ^5
8.76582*10^4 hours
Part III: In two or more complete sentences, compare your answers to parts I and II. In your comparison, discuss similarities and differences in your answers.
Part II is an exact answer, where Part I is an estimate. Both Parts give values in the thousands of hours, and are both between 8700 and 8900 hours. Part I can be done without a calculator where Part II is much harder to do without a calculator.
Step-by-step explanation:
1.
Bill has
WIN
of his pizza left from lunch. If he eats
7
more of the pizza, how much pizza is left pls answer I need help
Answer:
Option D) 5/21 pizza is left.
Step-by-step explanation:
Bill has 2/3 of his pizza left from lunch. If he eats 3/7 more of pizza then we have calculate the pizza left.
Let the size of a pizza is x. Now 2x/3 pizza is left with Bill after lunch.
Therefore pizza eaten by Bill = x - 2x/3 = x/3
Now Bill eats 3/7 more of pizza has been eaten by Bill.Therefore total pizza left is
x - x/3 - 3x/7 = x(1 - 1/3 - 3/7) = x( 21 - 7 - 9)/21 = 5x/21
So 5/21 part of pizza is left.
Which step should they take next to find a meeting place that is the same distance from each person's house? Find the midpoint of the segments which connect their houses. Bisect each of the angles with vertices at their houses. Draw perpendicular lines through any point on the segments which connect their houses. Draw perpendicular line segments from each vertex to the opposite side.
Answer:
A. Find the midpoint of the segments which connect their houses.
Step-by-step explanation:
correct on edge 2020.
Answer:
Find the midpoint of the segments which connect their houses.
Step-by-step explanation:
If you find the midpoint between all of their houses, then that midpoint represents where they will meet up. And that is indeed what you are trying to find, you are trying to find.. the midpoint.
Therefore A is the correct answer.
(also verified on edge)
Hope this helps! :)
Kevin was accepted to college and is making plans for next year's budget. He anticipates getting a part-time job and making about $80 a week. In addition, his federal grants will be about $3,000 per semester. What is his income expected to be during the 36-week school year?
Answer:
Kevin's income is expected to be:
$8,880.
Step-by-step explanation:
Income from part-time job = $80 a week
For 36 weeks, he will earn $2,880 ($80 * 36)
Federal grants = $3,000 per semester
For semesters = $6,000 ($3,000 * 2)
Total income = income from part-time job plus the Federal grants
= $8,880 ($2,880 + $6,000)
The implication is that Kevin cannot spend above $8,880 towards his college education, unless he has another source of support during the year. Otherwise, he may resort to borrowing, via college loans.
4. Find a solution to the following system of equations.
-2x + 5y = 8
2x + 2y = 3
(0, 3)
(2, 1)
(1,2)
(-2, 1)
Answer:
Step-by-step explanation:
[tex]\begin{bmatrix}-2x+5y=8\\ 2x+2y=3\end{bmatrix}\\\\2x+2y=3\\+\\\underline{-2x+5y=8}\\7y=11\\\\\begin{bmatrix}-2x+5y=8\\ 7y=11\end{bmatrix}\\\\Solve\:7y=11\:for\:y\: \:, y= \frac{11}{7} \\\\\mathrm{For\:}-2x+5y=8\mathrm{\:plug\:in\:}y=\frac{11}{7}\\\\Solve\:-2x+5 \frac{11}{7}=8\:for\:x\:,x= -\frac{1}{14}\\\\x=-\frac{1}{14},\:y=\frac{11}{7}[/tex]
Evaluate the following expression if w = 10, x = 8, y = 6, z = 4
3z to the power of 2 minus 20
Answer:
28
Step-by-step explanation:
3z^2 - 20
substitute z for 4 (given)
3*4^2 - 20
3*16 - 20
48 - 20
28
The average of Landry’s test scores must be at least 92 for her to make an A in Algebra class. She got a 95 on her first test. What grade can Landry get on her second test to make an A in the class?
Average is determined by the sum of test scores divided by total number of tests. This can be represented in this equation:
95 + X / 2 = 92 ⇒ Multiply both sides by 2 to get of the divided by 2
95 + X /2 (2) = 92 (2)
95 + X = 184 ⇒ Subtract 95 from both sides to isolate x
95 -95 + X = 184 -95
X = 89
Therefore, they must get at least 89% to maintain an A.
Solve for x. (6x+24) (12x-30)
Answer:
x+8=5
Step-by-step explanation:
53y+52=5 13−3x6=−16x+8=5
Find the distance from pint A(-6,4) To the equation y=1/3x-4
somebody help me :(
HELP QUICKLY!!! HELP QUICKLY!!!
When simplifying 5(−2)(9) − 3, a student first subtracted 3 from 9. Is this the correct first step? Explain.
Answer:
No, you should multiply first.
Step-by-step explanation:
Use PEMDAS. It means parenthesis, exponents, multiplication and division (left to right), and addition and subtraction (left to right). You should multiply 5*-2, then that product *9, then subtract 3. Hope this helps! :)
Nicole has a bracelet with red beads and blue beads. The ratio of red beads to blue beads is 2 : 12.
Which statement is true of Nicole's bracelet?
There are 6 times as many red beads as blue beads.
There are 6 times as many blue beads as red beads.
There are 10 times as many red beads as blue beads.
There are 10 times as many blue beads as red beads.
I need the answer in 10 minutes hurry!!
Answer:
There are 6 times as many blue beads as red beads.
Step-by-step explanation:
blue beads (2) times six is 12 (red beads)
A family is saving up for a house payment. If they deposit $400 each month into an account that pays 4.8%intrest compounded monthly how much money will they have in 8 years from now
Answer:
44,956
Step-by-step explanation:
Future value
A family is saving up for a house payment. If they deposit $400 each month into an account that pays 4.8% interest compounded monthly how much money will they have in 8 years from now
The formula =
P = d( (1 + r/k)^nk - 1)/r/k
d = Amount deposited monthly = $400
r = interest rate = 4.8% = 0.048
k = compounding frequency = 12 months
n = number of years = 8
P = 400((1 + 0.048/12)^8 × 12 - 1)/0.048/12
P = (400 ( 1 + 0.004)^96 - 1)/0.004
P = (400 ( 1.4495569791 - 1)/0.004
P = 40(0.4495569791)/0.004
P = 179.82279162/0.004
P = 44955.697906
Approximately
P = 44,956
Jada and Noah went to dinner. They added up the prices listed on the menu for everything they ordered and got a subtotal of $54. When they got their check, Noah realized that the tax was not figured in. If the tax rate is 7.5%, what is their new total?
Answer:
$58.05
Step-by-step explanation:
[tex] \frac{7.5}{100} \times 54 = 4.05[/tex]
[tex]54 + 4.05 = 58.05[/tex]
i think this is the answer
Answer:
$58.05
Step-by-step explanation:
HELP PLEASE HURRY CLICK ON ME-
Answer:
G'(6,-7)
H'(6, -4)
I'(1, -7)
Step-by-step explanation:
Translations(a)
G(-1, 6)->(6,1)
H(-1,3)->(6,-2)
I(-6,6)->(1,1)
Reflection(b)
G(6,1)->(6,-7)
H(6,-2)->(6,-4)
I(1,1)->(1,-7)
Identify the slope and y-intercept of the line. Then write the equation in slope form.
Answer:
The slope is -4, and the y-intercept is 1. The equation is y=-4x+1.
Step-by-step explanation:
To find slope use this equation:
(y2-y1)/(x2-x1)= slope (m)
And the y-intercept is b and you can find that just by looking at the graph.
-1/2 divided by what = -7/3
3/14
yan na yung answer sana maka tulong
Answer:
(3/14)
Step-by-step explanation:
(-1/2)/x = (-7/3)
(-1/2) = (-7/3)x
(-3/6) = (-14/6)x
(-3/6) = (-14/6)(3/14)
(-3/6) = (-42/84)
(-1/2) = (-1/2)
(-1/2)/x = (-7/3)
(-1/2)/(3/14) = (-7/3)
(-1/2) x (14/3) = (-7/3)
(-14/6) = (-7/3)
(-7/3) = (-7/3)
Determine if (4, -5) is a solution of the equation y=12x−7. Explain how you made your decision.
On a farm, a cow eats about 24 pounds of hay per day. If hay costs $1.55 per pound, how much does it cost to feed a cow each day?
Answer:
$37.20 per day
Step-by-step explanation:
Since $1.55 is the amount per pound you would multiply 1.55 x 24 to get 37.5 and since it is money you would add a zero at the end, it would look like so,
$37.20
Hope that helps and have a great day!
Answer:37.2
Step-by-step explanation:
so first you do 24 since its the pounds and since that's for a whole day so if you do a 24 times 1.55 which is 37.2 i hope this helps and can i get the brainiest
11. Beth wants to join the Movie Club. There is a $30 startup fee and a $4 monthly fee. Which of
the following represent the input, output, and appropriate fugestion for this scenario?
Circle the correct answer
A. Input: the total cost, Output: the starting cost, Function: Clx)= 30x + 4
B. Input: the total cost, Output: the number of months, Function: C(x) = 30x + 4
C. Input: each month, Output: the total cost, Function: C(x) = 4x + 30
D. Input: each month, Output: the starting cost, Function: C(x) = 4x + 30
O
UE
at
de
Answer:
B
Step-by-step explanation:
write this number in standard notation
when the exponent is negative, you move the decimal to the left (and move it to the right with a positive number)
5.87 would be 0.00587 :)
y= -2/5X - 2
slope=
y-intercept=
9514 1404 393
Answer:
slope = -2/5y-intercept = -2Step-by-step explanation:
Compare your equation ...
y = (-2/5)x +(-2)
to the slope-intercept form ...
y = mx + b . . . . where m is the slope and b is the y-intercept.
Matching these patterns, you should be able to see that ...
m = -2/5 = slope
b = -2 = y-intercept
0.444444444444 as fraction
Answer:
The answer you are looking for is 2/5
Question 3 If AD = 5x +3, DC=2x + 4,AB=15, and BC=12, find the value of AD.
Answer:
ad =4
Step-by-step explanation:
You would like to buy a gaming system. The cost of the system is $500 and the
cost of internet access is $40 per month.
This question has no direct question, so here are some facts if you want them:
This equation can be expressed as a linear equation.
The equation can be expressed as: y =40x + 500
The y-intercept is 500, and the slope is 40.
If you type in a graphing website like desmos, then you can actually graph the line if you wanted (or needed) to.
I'm not really sure what the question is, but maybe if you needed help, here you go.