Mike used the computation StartFraction 7 Over (6 + 8 + 7) almost-equals 0.33 = 33 percent to find the percentage of eighth-grade band members who can play more than one instrument. What error did Mike make?
A. Mike included 7 when finding a sum to use as the denominator of his fraction.
B. Mike used the total of the column containing 7 as his denominator instead of the total of the row containing 7.
C. Mike should have used the sum of all the cell values as his denominator.
D. Mike should have used the number of eighth-grade students who can only play one instrument as the denominator of his fraction.
I'm pretty sure the answer is A
Answer:
a on edge
Step-by-step explanation:
If skim milk is 87% water, how many cups of skim milk contain 3.58 cups of water?
Answer:
4.11
Step-by-step explanation:
ez math
A baker makes 24 cookies in 4 hours. At this rate,
how many cookies can the baker make in 10
hours?
help this is IMPORTANT!!!!
Answer:
The baker will make 60 cookies in 10 hours.
At what point does the graph of 3x + 4y = 15 intersect the graph of x^2 + y^2 = 9? Express any non-integer coordinate as a common fraction.
Answer
12 and 36 and 13
If you need an explanation;
let's first isolate x in 3x + 4y = 15 ---
x = (15 - 4y) / 3
now substitute as x in the second equation provided ---
((15 - 4y) / 3)^2) + y^2 = 9,
((15 - 4y) / 3)^2) +( 3y/3)^2 = 9,
((15 - 4y)^2 + (3y/3)^2)/3^2 = 9,
225 - 120y +25y^2/9 = 9,
225 - 120y +25y^2 = 81,
25y^2 - 120y + 144 = 0
we now solve using the quadratic formula ---
[tex]y_{1,\:2}=\frac{-\left(-120\right)\pm \sqrt{\left(-120\right)^2-4\cdot \:25\cdot \:144}}{2\cdot \:25}\\=\frac{-\left(-120\right)\pm \sqrt{0}}{2\cdot \:25}\\=\frac{-\left(-120\right)\pm \sqrt{0}}{2\cdot \:25}\\\\= 12/5[/tex]
So then x = (15 - 4*12/5)/3 = 9/5. Our solution = (9/5, 12/5)
Please help I really need it thx!!
Answer:
a- (0,6)
b- (2,8)
c- (6,7)
d- (3,4)
d- (5,2)
Answer:
a- (0,6)
b- (2,8)
c- (6,7)
d- (3,4)
e- (5,2)
Step-by-step explanation:
All you need to do is go up to the letter and then from where the letter sits. look at the number to left and put it as the bottom number first and the number towards the left at the end like this ex: (8,2)
Happy Thanksgiving to everyone
Answer:
same to you ...............
Answer:
Happy Thanksgiving to everyone
What is the overlap of Data Set 1 and Data Set 2?
high
moderate
low
none
Why is place value important when you add and subtract decimals?
Answer:
so u dont subtract 5 from.6 like
Step-by-step explanation:
.6 .6
-5 make it -5.0
brainlyest
Answer: bc it lets u see how accurate the numbers are in other in written from u can get 10 and 2 ixed up due to place vaule not in the right slot
Im not sure how to explain my question in words so its in the file below-
;-;
Answer:
C
Step-by-step explanation:
The arrow is pointing right is it is greater than which means that A and B are out. And for
D, -4 is not greater than -3 so D is also out which leaves only C
and -2 is greater than -3
Answer:
C. is correct
Explenation:
Don't know how to explain it but i'll try
-2 is greater than -3 because -3 is on the left of -2 so that means it is greater.
I’m really stupid. I need help
Answer:
#7
1 box per 30 pounds
#8
1 notebook per 1.89 dollars
Step-by-step explanation:
Answer:
7. 30 8. 1.89
Step-by-step explanation:
30/1=30
9.45/5=1.89
The price of one share of a company declined $1.50 per day for 4 days in a row. What is the overall change in the price of one share?
Answer:
Overall, the price of the share declined by $6.
Step-by-step explanation:
1.5*4=6
What is the ratio of the number of days in the week that begin with the letter "T" to the number of days in the week that do not begin with the letter "T"?
7 over 2
2:5
5 over 7
2 to 7
If you answer correctly you get brainliest!!
Answer:
2:5
Step-by-step explanation:
Answer:
2:5
Step-by-step explanation:
Jessica is 5 years older than her sister Jenna. Jenna tells her sister that in 5 years, she will be as old as Jessica was 5 years ago. If Jenna’s age is x, which equation represents the situation? How many solutions does the equation have?
A.
x + 5 = (5 − x) − 5, which has one solution
B.
x + 5 = (x + 5) − 5, which has infinitely many solutions
C.
x + 5 = (x + 5) − 5, which has no solution
D.
x + 5 = (5 − x) − 5, which has infinitely many solutions
E.
Answer:
Jenna's age Jessica's age
today x x + 5
in 5 years x+5
5 years ago x + 5 - 5
Equality x + 5 = x + 5 - 5
=> x + 5 = x
The equation is x + 5 = x
That equation has not any solution, because it reduces to 5 = 0, which is an absurd.
So, the conclusion is that information given by Jenna is wrong.
It is logical: if the difference of the ages is 5, in five years Jenna will have 10 years more than what her sister had 5 years ago, no 5 as she told Jessica.
Answer:
(x + 5) + 5 = (x + 5) + 5, which has infinitely many solutions
Step-by-step explanation:
help me plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
for the second space add a zero then multiply 5x5 and 5x2 add that and move the decimal 2 places to the left its infront of your addition answer.
Step-by-step explanation:
From 76 inches to 21 inches
Answer:
55 inches
Step-by-step explanation:
76-21=55
Answer:
noice!
Step-by-step explanation:
What's the measure of ABD, DBK, and KBC? Show all work.
Please, I need help with this. It's due by 9:00 and it's already 7:00 where I live ;-;
Answer:
56.6
Step-by-step explanation:
Since BK is a bisector of ABC at B,
this implies that:
ABC = ABK + KBC
ABC = 28.3 + 28.3
ABC= 56.6
charlie and his sister had a garage sale charlie made $23.25 at the sale and his sister made $30. how much more did charlie's sister make at the garage sake than charlie
Answer:
6.75 i think might be rongw
Step-by-step explanation:
Answer:
6.75 i think
Step-by-step explanation:
True or False?
Any set of ordered pairs is called a relation.
Answer:
true
Step-by-step explanation:
helpplehelpplehelppleh
In the diagram below, line AB is parallel to line CD. The measure of
∠∠ABC is 28° and the measure of ∠∠EDC is 42°. Find the measure of∠∠CED. Explain why you are correct by presenting an informal argument that uses the angle sum of a triangle.
what is the measure of ∠∠CED is ? And Explain why ?
Answer:
ced is 110 degrees
Step-by-step explanation:
because ECD is 28 degrees and 28+42=70 and a triange always = 180 degrees so it would have to be 110
The measure of ∠CED is 110 degrees by angle sum property of the triangle.
We are given that line AB is parallel to line CD.
The measure of ∠ABC is 28° and the measure of ∠EDC is 42°
What are exterior angles?An exterior angle is a measure of rotation between one extended side(we extend it virtually) of the polygon with its adjacent side which is not extended.
We know that line AB is parallel to line CD.
So according to alternate interior angles measure of ∠ABC is 28° will be equal to BCD.
Thus, Angle BCD= 28 degrees
Hence, in a triangle CED
∠CED + ∠EDC + BCD = 180
∠CED + 28 + 42 = 180
∠CED = 180 - 70
∠CED = 110 degrees
Therefore, the measure of ∠CED is 110 degrees by angle sum property of the triangle.
Learn more about interior and exterior angles here:
https://brainly.com/question/14173422
#SPJ2
What is the value of this expression?
(−4)4
Answer:
-16
Step-by-step explanation:
a negative multiplied by a positive is negative
The first person to answer this correctly get Brainliest
All three points are displayed on the line. Find an equation relating x and y.
the equation has to be X= and Y= and then fine the slope
HELPPPP looks at the image and EXPLAIN
Answer:
The answer is D
Step-by-step explanation:
160 is 4 times more the 40 so 57 time 4 is 228
Answer: 228
Step-by-step explanation:
Which equation is non-linear?
A) [tex]y=3x^3-10[/tex]
B) [tex]y=1/2x+4[/tex]
C) [tex]y=4x-5/3[/tex]
D) [tex]-3x--7y=-21[/tex]
Answer:
[tex]\huge\boxed{\text{A is not linear.}}[/tex]
Step-by-step explanation:
Linear equations are equations that, when graphed, form a "line" and have a constant rate of change.
Usually, these are in the form [tex]y=mx+b[/tex] when put in that order.
There are a few types of equations, I'll list some of the major ones
Linear = has a constant rate of changeExponential = increases for x as the exponent Quadratic = is in a binomial, trinomial, or polynomial - it has a vertex
Linear functions are usually in the form [tex]y=mx+b[/tex]
Exponential functions are usually in the form [tex]y=b^x[/tex]
Quadratic functions are usually in the form [tex]ax^2 + bx + c[/tex]
We must note that linear functions can not
A) Have an exponent on any x term
B) Have x and y multiplied by each other
We can see that every equation, except A
A) Follows the form [tex]y=mx+b[/tex] ([tex]-3x--7y=-21[/tex] can be simplified to [tex]y= \frac{3}{7}x-3[/tex])
B) Does not have any exponents on their x terms
That leaves A) to be the equation that isn't linear.
Hope this helped!
Answer:
Equation A is non-linear.
Step-by-step explanation:
We are given four equations in which we need to determine if they are linear or non-linear relationships.
Firstly, we need to know some information about linear equations:
Linear equations cannot have an exponent.Linear equations have a constant slope and are straight lines.Linear equations can be negative or positive.Linear equations have a domain of all real numbers. They also have a range of all real numbers.Now, in order to check this easily, we need to place these equations into slope-intercept form.
Equation A
[tex]\displaystyle y = 3x^3 - 10[/tex]
We see that this has an exponent, so this cannot be a linear equation.
In fact, because it is cubed, this is called a cubic function. Therefore, equation A is not a linear equation.
Equation B
[tex]\displaystyle y = \frac{1}{2}x + 4[/tex]
This equation does not have a exponent. It also has a slope and a y-intercept. Therefore, equation B is a linear equation.
Equation C
[tex]\displaystyle y = 4x -\frac{5}{3}[/tex]
The equation does not have a exponent. It also has a slope and a y-intercept. Therefore, equation C is a linear equation.
Equation D
[tex]-3x--7y = -21[/tex]
First off, we need to get this equation into slope-intercept form, if possible.
[tex]\displaystyle -3x -- 7y = -21\\\\-3x + 7y = -21 \ \ \ \text{Change the sign on 7y.}\\\\7y = 3x - 21 \ \ \ \text{Move 3x to the other side by adding.}\\\\\frac{7y}{7}=\frac{3x-21}{7} \ \ \ \text{Divide both sides by 7 to isolate y.}\\\\\bold{y = \frac{3}{7}x-3}[/tex]
Our final equation is [tex]\displaystyle y = \frac{3}{7}x-3[/tex].
The equation does not have an exponent. It has a constant slope and a y-intercept. Therefore, equation D is a linear equation.
Let's check our equations:
Equation A: [tex]\displaystyle y = 3x^3 - 10 \ \text{X}[/tex]Equation B: [tex]\displaystyle y = \frac{1}{2}x + 4 \ \checkmark[/tex]Equation C: [tex]\displaystyle y = 4x -\frac{5}{3} \ \checkmark[/tex]Equation D: [tex]\displaystyle y = \frac{3}{7}x-3 \ \checkmark[/tex]Therefore, we have determined that Equation A is not a linear equation, making it non-linear.
Pls help meh ;-;
giving brainliest for who ever answers it right.
Answer:
Part A: WORK(Below) Part B: WORK (Below)
1) 2(2x-3)+2(x+4)=50 1) (2x-3) (x+4)
2) 4x-6+2x+8=50 2) 2(8)-3 (8+4)
3) 4x+2x+2=50 3) 16-3= 13 12
4) 6x+2=50 13* 12
-2 -2 Answer= 156
5) 6x=48
6 6
6) Answer: x=8
Step-by-step explanation: (PART A BELOW)
Step one (1): Multiply 2 times 2x and -3 multiply 2 times x and 2 times 4
Step four (4): Subtract -2 from 2 and 50
Step five (5): Divide 6x=48 by 6
Step Six (6): Answer: x=8
Step-by-step explanation: (PART B BELOW)
Step one (1): x equals to 8
Step Two (2): 2 times 8 which equals to 16 subtract -3
Step Three (3): 16-3=13
Step Four (4): (x+4)
Step Five (5) (8+4)=12
Step Six (6): 13 times 12
Step seven (7): Answer: 156
What is the Lenght and Width of the Graden?
156
Shane and Abha earned a team badge that required their team to collect no less than 2000 cans for recycling. Abha collected 178 more cans than Shane did.
Write an inequality to determine the number of cans, S, that Shane could have collected.
What is the solution set of the inequality?
(Image attached if needed)
Arthur is building a rectangular sandbox for his son. The area of the sandbox is 17 23/32 square feet. If the length of the sandbox is 3 3/8 feet, what is the width of the sandbox? Explain your answer.
PLZ HALP ME!!! eek
I will give brainliest, 5 stars, and a thanks
Answer: x = 6
Step-by-step explanation:
Mr. Martinez is comparing the price of oranges from several different markets. Which market’s pricing guide is based on a constant unit price? a,b,c or d
Answer:
the answer is D
Step-by-step explanation: if you look at it the only answer that is changing by the same number consistently is the letter D. the rate is 3.00 for every 5 oranges
Right triangle ABC is shown below.
On a coordinate plane, a line goes through (0, negative 2) and (3, 1). Triangle A B C has a rise of 4 and run of 3.
A similar right triangle would be created by a rise of 8 and a run of
Answer:
6
Step-by-step explanation:
Im not to sure theirs not enough information