Answers
amount error is guess subtract actual amount 198-172 = 26
26/172 = 0.15
0.15 x100 = 15%
Related Questions
Stephanie has 6 classes a day at school. Each class is 52 minutes long. She goes to school 5 days a week. How many minutes does she spend in her classes each week?
________ minutes
Answers
Answer:
1560 minutes
Step-by-step explanation:
52minutes x 6 = 312minutes
312minutes x 5 = 1560 minutes
so that means, she spends 1560 minutes in class
Answer:
___1560_____ minutes.
Step-by-step explanation:
6*52*5 = 1560 minutes
___1560_____ minutes.
Riko wants to find the distance between the points (−2, −3) and (2, −5). His work is shown. StartAbsoluteValue negative 3 EndAbsoluteValue + StartAbsoluteValue negative 5 EndAbsoluteValue = 3 + 5 = 8. The distance is 8 units. Riko correct? Explain why or why not.
Answers
Answer:
Riko is wrong because she uses the wrong formula.
Step-by-step explanation:
Given the coordinate points (-2, -3) and (2, -5)
We are to find the distance between the two points
Using the formula:
D = √(x2-x1)²+(y2-y1)²
From the coordinates x1 = -2, y1 = -3, x2 = 2 and y2 = -5
Substitute
D = √(2-(-2))²+(-5-(-3))²
D= √(4)²+(-2)²
D = √16 + 4
D = √20
D = √4*√5
D = 2√5
This shows that Riko is wrong because she uses the wrong formula.
Answer:
No, Riko is not correct. The points do not have the same x-coordinates. If you connect the points, they do not form a horizontal or vertical line, so you cannot count spaces or use absolute value to find the distance.
Step-by-step explanation:
What percent of offspring will be blue eyed?
0%
25%
50%
100%
Please I need help
Answers
Answer:
I believe the answer is 0% because the blue eye trait is recessive.
Step-by-step explanation:
Hope this helps!
✧◝(⁰▿⁰)◜✧
Answer:
25%
Step-by-step explanation:
blue eyes are the resesive gene but there is still a 25% chance.
Can you help me -3-
only the first problem (a)
Answers
Answer: -18
Step-by-step explanation:
Turn 2 1/4 into an improper fraction --> 9/4
Now the expression is:
9/4 x -8
Multiply 9 x -8 and that gives you -72...
Then, divide 4 from -72 which is -18!
Hope that helped!
I’ll DO ANYTHING IF U ANSWER THIS WHOLE THING
Answers
Answer:
13/12
Step-by-step explanation:
Can someone please explain slope in a way that might make sense.
Answers
The slope of an equation or graph is the rate of change.
In order to find slope, we use the formula m=rise/run or m=y2-y1/x2-x1
“m” is equal to the slope
“rise” or “y2-y1” is the difference (subtraction) of the two y coordinates
“run” or “x2-x1” is the difference (subtraction) of the two x coordinates
Remember, the points we are using for this example are (4, 1) and (-2, 7)
m = y2-y1/x2-x1
m = 7-1/-2-4
1 and 7 are your y coordinates so you plug them in an find the difference (subtraction)
4 and -2 are your x coordinates so you plug them in an find the difference (subtraction)
It doesn’t matter whether you do “m=7-1/-2-4” or “m=1-7/4-(-2)” both will have the same answer
The only thing you can’t do is something like “m=7-1/4-(-2)” or “m=1-7/-2-4”
The bottom can’t be solved in the opposite way of how it was solved on top and vice versa of that makes sense
Also, keep in mind that if you see two negatives as in the “m=1-7/4-(-2)” example, you turn it into an addition symbol
Like this:
“m=1-7/4+2)”
Because two negatives are equal to a positive
m = y2-y1/x2-x1
m = 7-1/-2-4
m = 6/-6
m = 6/-6
m = -1
Remember that a negative divided by a positive is always a negative so it doesn’t matter where you place the negative sign
For example, if your slope was 2/-5, that would be the same as -2/5
And when you divide two negatives, it always equals to a positive
For example -2/-5 would simplify to 2/5
I hope that helped and made sense :)
HELP PLEASE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! :)
find the solution set.
Answers
Part A: m< -6
---
Part B: a < 25
---
Part C: x < 16
---
Part D: p > 8
The football team has a total of 25 jerseys. There are 5 medium-sized jerseys. What percent of the jerseys are medium-sized jerseys?
% are medium-sized jerseys
Answers
Answer:
20%
Step-by-step explanation:
There are 5 medium shirts out of 25 shirts.
5/25 = 0.20
It need to be a percent instead of a decimal so you times it by 100.
0.20*100 = 20%
Answer:
25
Step-by-step explanation:
A.it is a function
B.it is not a function
Answers
Select the correct answer.
Simplify the following expression.
1
OA
OB. 5(-3)
О с.
53
OD.
Answers
Answer:
B) 5(-3) either way its telling you to multiply 5 by -3
The simplifying form of the expression 5⁻³ is,
⇒ 1 / 5³
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The expression for simplifying is,
⇒ 5 ⁻³
Now,
By rule of exponent;
⇒ a⁻ⁿ = 1 / aⁿ
Hence, We can formulate simplifying form of the expression 5⁻³ is,
⇒ 5 ⁻³
⇒ 1 / 5³
Thus, The simplifying form of the expression 5⁻³ is,
⇒ 1 / 5³
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ7
convert 8x-10y=20 into slope intercept form
Answers
Answer:
y=⅘x-2
Step-by-step explanation:
8x-10y=20
-10y=-8x+20
y=⅘x-2
What expression can you substitute for y in
this equation?
-4y + x = -27
Enter the correct answer.
Answers
Answer:
1/4x+27/4
Step-by-step explanation:
Here's the equation: -4y+x=-27
We'll need to isolate y on one side
subtract x from both sides
-4y=-x-27
divide everything by -4
y=1/4x+27/4
So you can substitute 1/4x+27/4 for y.
hope this helps!
i don’t understand how to do this 3a + 7 + 2(3 +a)
Answers
Answer:
5a+13
Step-by-step explanation:
Aisha wants to paint the four walls of her living room.
Each wall is 2.4 m high and 3.7 m long.
One wall has a door of 2 m by 0.7 m.
Tins of paint cost £12 per 1.5 L tin.
Each litre of paint can cover 8 m2 of wall.
There is an offer of: Buy 2 tins get the 3rd at half price.
How much will Aisha pay to paint her living room?
Answers
9514 1404 393
Answer:
£30
Step-by-step explanation:
The total area of the four walls is ...
A = 4 × LW
A = 4 × (2.4 m)(3.7 m) = 35.52 m²
Subtracting the area of the door, we find the painted area to be ...
35.52 m² -(2 m)(0.7 m) = 34.12 m²
Painting this area will require ...
(34.12 m²)/(8 m²/L × 1.5 L/tin) = 2.8433... tins
Aisha will need to buy 3 tins of paint, for which she pays 2.5 times the price of 1 tin:
2.5 × £12 = £30 . . . . Aisha's cost to paint her living room
£25 or £20.10
Step-by-step explanation:
calculate the area to be painted:
2.1x4.5= 9.45m^2 for each wall
x4= 37.8m^2
area of door= 1.8x0.9= 1.62m^2
subtract the area of the door from the wall area
37.8-1.62= 36.18m^2 to be painted
divide the area by the area that 1L of paint can cover
16.18/12= 3.015 L needed
if 1.5L= £10 then, 3L= £20. she needs 2 cans + an extra 0.015 L- so another can (3 cans total) add price up.
£30- but buy 2 get 3rd 1/2 price, so take £5 off. price is £25
or
calculate price for 0.015L
1.5=£10
divide both sides by 100
0.015= £ 0.10
if 1.5L= £10 then, 3L= £20. she needs 2 cans + an extra 0.015 L
£20+£0.10= £20.10
I DONT KNOW IF THIS IS RIGHT but hope it helps :)
a half of 48 divided by6multiplied by4 plus 3 minus 2
Answers
Answer: 17
Step-by-step explanation: thx
Answer: 9 using pemdas
Step-by-step explanation: parenthesis, expressions, multiplication, division, addition, subtraction.
answers for the 2 boxes please :)
Answers
50/21 as a 10th of a percent
Answers
Answer:
20 percent
Step-by-step explanation:
Which rational function has vertical asymptotes at x=-3 and 9,a horizontal asymptote at y=1, and an x-intercept of 0?
•h(x)=x^2/x^2-6x-27
Answers
Answer:
Yes that function does •h(x)=x^2/x^2-6x-27
Step-by-step explanation:
Yes that function does •h(x)=x^2/x^2-6x-27
27÷819=
give me the quotient for 27÷819
Answers
Answer:
.032967033
Step-by-step explanation:
Answer:30.33333333 or just 30.3
Step-by-step explanation:
30.33333333333333
What’s the ANSEWR to this
Answers
Answer:
20.25
Step-by-step explanation:
i think its asking for the long side
the pythagorean theorem states that in a right triangle a^2+b^2=c^2
a is 19
b is 7
c is the long side
19^2= 361
6^2= 49
361+49=410
410 =c^2
square root of 410 = ~20.25
Answer:
[tex]hypotenuse = \sqrt{ {19}^{2} + {7}^{2}} \\ = \sqrt{361 + 49} = \sqrt{410} \\ = 20.25[/tex]
20.25 is the right answer.
someone do these please!
Answers
Answer:
I think the first option is better.
Step-by-step explanation:
First : 5.75% of $5000 is 287.5. 287.5 * 24 = 6900
And 6.55 of $5000 is 325. 325 * 36 = 117000
If she takes the first option it would be better because it is nearer to what she can afford. It is also better because it helps her make more than 5000 in less time.
HOPE THIS HELPED.
IF IT DOESN'T PLEASE COMMENT.
Plz help I will name you brainliest plz and thank you
Answers
Answer:
B
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Simplify expression: 6 - 36 - 3 = 3Look at screenshot belowI hope this helps!
Which expressions are equal to 105?
Answers
Answer:
2•2²×100+5.
Step-by-step explanation:
Please I am on a timer
Answers
Answer: g=5
Step-by-step explanation:
Find the area of a trapezium is 4cm 4cm, 7cm
Answers
Step-by-step explanation:
1/2×(4+7)×4
1/2×11×4
11×2
22cm2
What is 3.116372 rounded to the nearest hundred thousandths place?
Answers
Answer:
3.116370
Step-by-step explanation:
1. Find hundred thousandths place: the 7
2. Look at the number behind it (2).
3. 2 is 4 or less so it would be 3.1116370.
4. The numbers after the place you round ( Here hundred thousandths)
turn into zeros.
Find the value of x
?????
Answers
Answer:
2x+57°+x=180 ( angle sum property of triangle)
3x=123
x=41
solve the system of equations
4x - 3y = 8 and 2x + 5y = -9
I need a math genius’ help on this pls :)
Answers
Answer:
4x-3y=8
Simplifies to x=3/4y+2
2x+5y=-9
Simplifies to -5/2y+-9/2
What value of x is in the solution set of 4x - 12 < 16 + 8x?
0-10
O-9
08
O 7
Answers
Answer: 7 and 8
Step-by-step explanation:
[tex]4x-12 < 16+8x\\\\-12 < 16+4x\\\\-28 < 4x\\\\-7 < x \\\\x > -7[/tex]
So, both 7 and 8 are in the solution set.
NEED HELP PLEASE 20 POINTS!!!!