Answer: -20
percent error= amount of error/actual value * 100
amount of error= 100-125= -25
percent error = -25/125 *100
percent error= -20
The percent error of Hannah's estimate will be 20%.
Hannah estimates the ribbon's length to be 100 cm. The ribbon's real length is 125 cm.
How to calculate the percent error?To find the percent error of Hannah's estimate, we need to first calculate the difference between the estimated value and the actual value.
In this case, the difference is 125 cm - 100 cm = 25 cm.
Now we can divide the difference by the actual value and multiply by 100% to find the percent error.
As per the given question, the percent error is :
⇒ (25 cm / 125 cm) x 100%
⇒ 0.2 x 100%
⇒ 20%.
Therefore, the percent error of Hannah's estimate will be 20%.
Learn more about the percent error here :
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A client pays for a moving company to move 25 boxes. If the moving company charges $12.50 per box and a base fee of $199.95 to each client, what is the total amount the client pays?
$212.45
$ 212.45
$237.45
$ 237.45
$312.50
$ 312.50
$512.45
Answer:
$512.45
Step-by-step explanation:
12.50x25 would equal 312.5 then you add that to 199.95 and you would get $512.45
ima ask this again pls help
Tony’s investments lost $12,545.50 in value over the past 2.5 months. On average, how much did his investments change each month?
–$31,363.75
–$5,018.20
$5,018.20
$31,363.75
Answer:
It's either –$5,018.20 or $5,018.20
What is 2.286
Rounded to the nearest hundredth
Answer:
2.29
Step-by-step explanation:
2.286
If the italicized number is 5 or above round the underlined number up. If it is 4 or less let it go
TRICK/ TIP
(5 or above, give it a shove. 4 or below, let it go.)
Solve: 3(x- 2)= 18.
X=
Answer:
x = 8
Step-by-step explanation:
3(x-2)=18
3x-6=18
3x=24
x=24/3
x=8
Answer:
x = 8
Step-by-step explanation:
3 (x - 2) = 18
3x - 6 = 18
18 + 6 = 24
3x = 24
x =
10x- (- 4 + 7x
answer if you can :)
Answer:
17x + 4
Step-by-step explanation:
The -(- would be turned into a positive due to the rule of two negatives makes a positive. You wouldn't add the 4 into either of the numbers with a variable, you would only add the 10x and 7x.
Answer:
3x+4
Step-by-step explanation:
Apply the distributive property to get 10x - -4-(7x). Now we can turn the two negatives into a positive to get 10x+4-7x. Now, subtract 7x from 10x to get 3x. This will leave you with 3x+4.
please provide answer and explanation !!
Three lines are given on each graph that intersect at one point. Find the slope-intercept equation of each line. Graph and write an equation for one additional line that intersects at the same point. Vertical and horizontal lines are not permitted.
Answer:
Step-by-step explanation:
Please help asap I suck at math :(
Answer:
a. 68 mi/h
b. It will take Nolan 3 hours at this rate
Answer:
A. 68
B. 3 hours
.........
.
The table defines a function.
What is the domain of the function?
Question 2 options:
Year
Change in height (inches)
Joshua
Table
what is the slope and y-intercept for y= 2x - 3
Answer:
Slope: 2
y-intercept: 3
Bob sets the price of the plants according to their height in inches. A plant that is 9.5 inches high costs $2.28 in his store. What is the price per inch of a plant? Show your calculation.
Answer:
2.28 divide 9.5
=0.24
Step-by-step explanation:
if im not wrong it is 24cents each inch $2.28÷9.5=0.24
What is the y-value of the solution to the system of equations?
3x + 5y =1
7x + 4y =-13
het
atb
ver -3
O -1
O 2
O5
ree
Answer:
c
Step-by-step explanation:
78 fl oz = _c = _oz
pls help me and its in us coustemery units
Answer:78 fl oz= 9.75c =81.12 oz
Step-by-step explanation:
If five pounds of oranges cost $5.50, what is the unit rate? pls help
I need help! What does this dot mean? I forgot.
Answer:
Times/Multiply
Step-by-step explanation:
Frank is going to plant b vegetable seeds in one garden and 4b + 4 vegetable seeds in another. How many seeds is Frank going to plant? Show your work
Answer: 4 seeds
Step-by-step explanation: you’re only planting 4 new seeds the other plants are planted
2) Orion buys 3 books for a total of $25.50. He pays $8 plus sales tax for each book. He wants
to know how much the sales tax is for one book.
) Which quantity is unknown?
.) the sales tax for each book
Let t equal the sales tax Orion pays for each book. Write an equation that
represents the situation.
3
8
25.50
t
Answer: I think the Sales tax is 0.5 because 0.5 X 3 is 1.5, He paid $24 in total for the books so you would do 24 + 1.5 and get 25.50, So it would have to be 0.5 sales tax for one book. Sorry about my English.
Answer: the equation would be 3(t + 8) = 25.50 :)
PLEASE HELPPPPP!!!!!!!!!!!!
Answer:D
Step-by-step explanation:
I just did the quiz and passed !
Oscar made 16 of his 20 free throws attempted. What percent of free throws did Oscar make?
Answer:
Oscar made 80% of his free throws
Step-by-step explanation:
16/20 is 80%
Simplify: 3x + 2(x - 1)
Answer:
5x -2
Step-by-step explanation:
literally did this in my head but
2 * x = 2x
2 * -1 = -2
2x + 3x = 5x -2
Answer:
5x-2
Step-by-step explanation:
3x+2(x-1)
3x+2x-2
5x-2
Can someone help on this other question ^W^
Answer:
z=12
Step-by-step explanation:
z/4-2=1
z/4=2+1
z/4=3
z=3×4
z=12
Answer:
[tex]\huge\boxed{z=12}[/tex]
Step-by-step explanation:
[tex]\dfrac{z}{4}-2=1\qquad|\text{add 2 to both sides}\\\\\dfrac{z}{4}-2+2=1+2\\\\\dfrac{z}{4}=3\qquad|\text{multiply both sides by 4}\\\\4\!\!\!\!\diagup\cdot\dfrac{z}{4\!\!\!\!\diagup}=4\cdot3\\\\z=12[/tex]
Rearrange each of the following in slope/y-intercept form, y = mx + b.
a) 3x−6y+8=0
b)−2x−5y+30=0
Use the divisibility rules to determine which of the following numbers 528 is divisible by. (Check all that apply.)
6
3
5
7
10
2
11
9
4
ANSWER PLS AND THANK YOU
Question 14: 5/3
Question 15: 3
Reason: When you go up with those answers, you end up at the next point. Like with Question 14, From the point on the bottom, Go up five units, and go three units to the right, and you are at the next point. Same goes with Question 15.
I hope this helps, and Happy Holidays! :)
100 points and brainliest.
An irregular polygon is shown below:
The area of the irregular polygon is ____ square units.
Answer:
15 unit²Step-by-step explanation:
The area can be found two different ways
First, addition of two sections:
3*4 + (7- 4)*(3 - 2) = 12 + 3*1 =12 + 3 =15 unit²Second, removal of section:
7*3 - 2*(7 - 4) =21 - 2*3 =21 - 6 =15 unit²Answer:
15 square units is the area of the irregular polygon
Ok im almost done with this assignment pls help with this question
Answer: 9 grandchildren
Step-by-step explanation: If she give out 452.25 in total in 50.25 increments, you need to find out how many times she was able to do that. Divide 452.25 by 50.25 which equals 9
Answer:
The answer is 9 grandchildren.
All you have to do is divide $425.25 by $50.25.
Hope this helps! Have an awesome day!
Priya has a recipe for banana bread. She uses
7 1/2
cups of flour to make 3 loaves of banana bread.
Andre will follow the same recipe. He will make b loaves of banana bread using f cups of flour.
Which of these equations represents the relationship between b and f?
1. B=2/5 f
2.B=9/2 f
3.B=2/9 f
4.B=5/2 f
Answer:
i think its B, Hope u ace it sorry if its wrong i truly tried my best
PLEASE HELP!!! 100 POINTS!!! EASY!!
Which ordered pair is the solution to the system of equations?
{y=3x−12
4x+6y=−6
(6, −5)
(0, −12)
(3, −3)
(4, −7)
Answer:
(3, -3)Step-by-step explanation:
METHOD 1.Put the coordinates of the given points to the equations and check the equality.
[tex]\left\{\begin{array}{ccc}y=3x-12&(1)\\4x+6y=-6&(2)\end{array}\right[/tex]
for (6, -5)
(1)
-5 = 3(6) - 12
-5 = 18 - 12
-5 = 6 FALSE
for (0, -12)
(1)
-12 = 3(0) - 12
-12 = 0 - 12
-12 = -12 TRUE
(2)
4(0) + 6(-12) = -6
0 - 72 = -6
-72 = -6 FALSE
for (3, -3)
(1)
-3 = 3(3) - 12
-3 = 9 - 12
-3 = -3 TRUE
(2)
4(3) + 6(-3) = -6
12 - 18 = -6
-6 = -6 TRUE
for (4, -7)
(1)
-7 = 3(4) - 12
-7 = 12 - 12
-7 = 0 FALSE
ANSWER: (3, -3)
METHOD 2:Solve the system of equations:
[tex]\left\{\begin{array}{ccc}y=3x-12&(1)\\4x+6y=-6&(2)\end{array}\right[/tex]
substitute (1) to (2):
[tex]4x+6(3x-12)=-6\qquad|\text{use the distributive property}\\4x+(6)(3x)+(6)(-12)=-6\\4x+18x-72=-6\qquad|\text{add 72 to both sides}\\22x=66\qquad|\text{divide both sides by 22}\\\boxed{x=3}[/tex]
put it to (1):
[tex]y=3(3)-12\\y=9-12\\\boxed{y=-3}[/tex]
[tex]\left\{\begin{array}{ccc}x=3\\y=-3\end{array}\right[/tex]
Simplify 7(9x - 3) - 4(2x - 1)
34x
55x - 17
55x - 25
Answer:
the answer is the second one, 55x-17
Step-by-step explanation:
So what you do is you open the parenthesis and evaluate and simplify the expression.
Here is the simplification: (7)(9x)+(7)(−3)+(−4)(2x)+(−4)(−1)
=63x+−21+−8x+4
And reduce that further and you get 55x-17.
I hate math ill give brainliest
Answer:
-4x + 9xStep-by-step explanation:
Combine like terms:
-4x - 9x = (-4 - 9)x = -13x
4x - (-9x) = 4x + 9x = (4 + 9)x = 13x
-4x + 9x = (-4 + 9)x = 5x
4x - 9x = (4 - 9)x = -5x
List the values shown on the number line
Answer:
-4, -2.8, 0.5, 1.3, 3
Step-by-step explanation:
Answer:
-4, -2.8, 0.5, 3.1
Step-by-step explanation: