Wayne answered 58 out of 65 questions on a test correct. What was the percentage he answered incorrectly?
A)91%
B)89%
C)11%
D)9%
Answer:
To find the percentage, take the answers right divided by the total. 58/65 is 89 percent
Answer:
C) 11%
Step-by-step explanation:
Subtract 65-58 , then divide that answer by 65(number of questions). Then multiply by 100 and round
for f(x) = 5x - 7 and f(x) = -3, what is the value of x
Answer:
Step-by-step explanation:
hello :
f(x) = 5x - 7 and f(x) = -3
5x - 7 = -3
5x=7-3
5x=4
x=4/5
Answer:
x = 4/5
Step-by-step explanation:
5x - 7 = -3
5x = -3 + 7
5x = 4
x = 4/5
Check:
5*4/5 - 7 = -3
4 - 7 = -3
What value of x make the equation 24-(3x - 9)-6= -2(4x - 10+ 5x + 7 true?
Answer:
x = 0
Step-by-step explanation:
24 - (3x - 9) - 6 = -2(4x - 10) + 5x + 7
solve the brackets by using the distribute property:
1(3x - 9) = 3x - 9
-2(2x - 10) = -8x + 20
rewrite the equation:
24 - 3x - 9 - 6 = -8x + 20 + 5x + 7
combine like therms:
27 - 3x = -3x + 27
subtract 27 from both sides:
27 - 3x - 27 = -3x + 27 - 27
- 3x = -3x
add x to both sides of the equation:
-3x + 3x = -3x + 3x
x = x or 0 = 0
to check, substitute 0 for x
24 - (3(0) - 9) - 6 = -2(4(0) - 10) + 5(0) + 7
anything times 0 is 0
24 - (0 - 9) - 6 = -2(0 - 10) + 0 + 7
solve:
24 + 9 - 6 = 0 + 20 + 0 + 7
27 = 27
image down below thx
Answer:
question 2 answer you wrote correct
question 3 answer is 20
Answer:
Q.2: 39, Q.3: 20 cups
Step-by-step explanation:
Q.2 Dog/Cat = 2/3
when Dog = 26,
26/cat = 2/3
cat = 26 x 3 / 2 = 39
Q.3 Sugar/Flour = 3/5
when sugar = 12 cups,
12/Flour = 3/5
Flour = 12 x 5 / 3 = 20 cups
Please answer. I’ll make brainliest. I have other questions aswell. So if u answer those as well You will get get brainliest for this question and the other two I’m about to post
The triangle VXW should look like that in the attachment.
sine of W = opposite side/hypotenuse
=> sine of W = 77/85
Other formulae:
cos(θ) = adjacent side/hypotenusetan(θ) = opposite side/adjacent sidesomeone help with this plss
Answer:
YW = ZW
Step-by-step explanation:
Answer:
YW=ZW otherwise I don't know
Factor the expression 28x -8
Answer:
4(7x-2)
Step-by-step explanation:
yeah so that's the answer your welcome
The factor of the polynomial expression 28x - 8 will be 4 and (7x - 2).
What is factorization?It is a technique for separating a polynomial into sorts that will be duplicated out. As of now, the polynomial's worth will be zero.
Polynomial math is the investigation of conceptual images, while rationale is the control of that multitude of thoughts.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
The expression is given below.
⇒ 28x - 8
Factorize the expression, then we have
⇒ 28x - 8
⇒ 4·7x - 4·2
⇒ 4(7x - 2)
The element of the polynomial articulation 28x - 8 will be 4 and (7x - 2).
More about the factorization link is given below.
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A little boy stands on a carousel and rotates around the road four times. The distance between the little boy and the center of the carousel is 6 feet, then how many feet did a little travel?
1. 389.99FT
2. 150. 72FT
3.1675.39 ft
4. 593.94 ft
150.72
...............
I really need help!!!!
Answer:
No
Step-by-step explanation:
You can't use the perpendicular bisector theorem because it doesn't intersect it at a right angle, (meaning it isn't perpendicular)
luis has 8 chapters to of a book to read. if she reads 2/3 of a chapter each day, how many days will it take her to finish the book?
Answer:
8/ (2/3)= 12
It will take Luisa 12 days to finish the book.
What is the solution set for x > -1
Answer:
Whole number set
Step-by-step explanation:
x > -1 means grater than (-1)
x = {0 ,1,2,3 ......}
Madelyn is blocking off several rooms in a hotel for guests coming to her wedding.
The hotel can reserve small rooms, that can room 2 people, and large rooms, that can
room 3 people. How many wedding guests could stay in the hotel if Madelyn reserved
15 small rooms and 14 large rooms? How many wedding guests could stay in the hotel
if Madelyn booked s small rooms and I large rooms?
Answer:
72
2s+3l
Step-by-step explanation:
for first answer,
15×2+ 14× 3 = 30+ 42=72
for second answer,
2 ×s + 3×l
= 2s+3l
HELP ASAP WILL MARK BRAINLIST
Find the surface area
Answer:
24
Step-by-step explanation:
First we need to find the area on one square which is 2*2 which is 4. So now we have 5 more cubes like this and we have to add all their areas to find the surface area so we make a multiplicaction sentence :
4*6=24
I = prt solve for( r)
Answer:
r = [tex]\frac{l}{pt}[/tex]
Step-by-step explanation:
Given
l = prt ( isolate r by dividing both sides by pt )
[tex]\frac{l}{pt}[/tex] = r
will give brainliest for correct answer so pls help me
Answer: Greater range is girls, greater median is girls.
Step-by-step explanation:
150-70= 80 (girls) while 120-60=60 (boys), and boys is 8-.5 while girls is 110.
image below thx god bless you :)
Answer:
C
Step-by-step explanation:
what ever way the < > is facing that is the way you "shaded" and if the < > has a line under it the # that has the circle the Circle will be colored in if the < > does not have a line under it then its a open circle
Answer:
The answer is C
Step-by-step explanation:
the reason why it is C is because this > symbol is facing towards the left.
A shop buys one carton of chocolate bars.
•They sell 3/5 of the bars at a profit of 30 percent
•They sell each of the remaining bars at $0.84
Calculate the overall percentage profit made by the shop from selling all 80 bars
If the slowest time and the fastest time are removed from the data, how does the new mean compare to the mean of the original data set?
A. The mean would not be comparable as the data sets are different.
B.The mean would increase as there is less variability in the data.
C. The mean would decrease as there is less variability in the data .
D.The mean would not change as the lowest and greatest values were removed .
Please help hurry
Answer:
A or C Sorry!
Step-by-step explanation:
A parabola with an equation of the form y=ax^2+bx+c has the point (3, 1) as its vertex. If (1, 3) also lies on this parabola, which of the following is another point on the parabola? A. (2, 6) B. (−3, −1) C. (5, 3) D. (2, 2) E. (−1, −3)
Answer:
(5,3)
Step-by-step explanation:
I plotted the point (3,1) on desmos graphing caculator and labeled it as the vertex.
Next I plotted the point (1,3).
Then I counted the spaces between point 1,3 and 3,1 as shown in the picture
Finally I graphed the point and connected the lines to make sure it looked like a parabola.
solve both of these?
Answer: 1. 18600000000 2. 645000
Step-by-step explanation:
62000000 x 300 = 18600000000
The area of Rhode Island is 1500. The area of Alaska land is a little more than 430.
1500 x 430 = 645000.
(I not sure if 645000 is the correct number, but that’s what I got).
4. Which equation represents a linear function that has a slope of 5 and a y-intercept of -6?
O y=-6x+4/5
O y= 4/5x-6
O y=4/5x+6
O y = 6x+4/5
Answer:
y=5x-6
Step-by-step explanation:
Use form y= mx + b where m is the slope and b is the y intercept
3. Solve for the side length of BA and AC. * (image attached)
1 point
Captionless Image
BA = 8, BA = 30
BA = 8, AC = 16
BA = 8, AC = 8√2
BA = 8, AC = 8√3
Answer:
D. BA = 8, AC = 8√3
Step-by-step explanation:
First, because this is a right triangle, refer to the trigonometric ratios:
tangent = opposite side/adjacent side
sine = opposite side/hypotenuse
cosine = adjacent side/hypotenuse
BA is the opposite side to the angle measure given, ∠C—which is 30°—and we have the measure of BC. BC is the hypotenuse, as it is across from the right angle of the right triangle. So we can use sine:
sine = opposite side/hypotenuse
sin(30) = BA/16
sin(30) / 1 = BA / 16
Cross multiply:
BA = sin(30) (16)
BA = 8
AC is the adjacent side to the angle measure given, ∠C—which is 30°—and we have the measure of BC. BC is the hypotenuse, as it is across from the right angle of the right triangle. So we can use cosine:
cosine = adjacent side/hypotenuse
cos(30) = AC/16
cos(30) / 1 = AC / 16
Cross multiply:
AC = cos(30) (16)
AC = 8√3
You can check by using the Pythagorean Theorem:
a² + b² = c²
8² + (8√3)² = 16²
64 + 192 = 256
256 = 256
If y = -2x + 3, find y when x = -3
can you explain for me question number 4,5,6,7,8 thanks i will give you a brainliest
Answer:
17/24 pizza
7/8 of questions
7/10 of the newspapers
dylan 1 1/4 miles sonia 1 1/10 miles
answer b
Step-by-step explanation:
What is the relationship between the exterior angle of a triangle and its remote
interior angles?
Answer:
The sum of the interior angles of a triangle is always 180 degrees. The exterior angle is the angle between any side of a shape, and a line extended from the next side. The sum of an exterior angle and its adjacent interior angle is also 180 degrees.
The relationship between the exterior angle of a triangle and its remote
interior angle is the exterior angle is equal to the sum of the two remote interior angles.
Which is known as the Exterior Angle Theorem.
What is a triangle?
A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
In a triangle, the exterior angle is formed when one side of the triangle is extended.
The exterior angle and the two remote interior angles (angles adjacent to the exterior angle on the triangle) form a linear pair, which means they add up to 180 degrees.
More specifically, the exterior angle is equal to the sum of the two remote interior angles.
This relationship is known as the Exterior Angle Theorem, which states that the measure of an exterior angle of a triangle is equal to the sum of the measures of its remote interior angles.
For example, if one of the remote interior angles of a triangle measures 40 degrees, and the exterior angle adjacent to it measures 120 degrees, then the other remote interior angle measures 180 - 40 - 120 = 20 degrees.
Thus,
The relationship between the exterior angle of a triangle and its remote
interior angle is the exterior angle is equal to the sum of the two remote interior angles.
This relationship is known as the Exterior Angle Theorem.
Learn more about triangles here:
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the price of a pair of earrings is $22 but priya buys them on sale for $13.20.
14. Given that log 2 = 0.3010 and log 3 = 0.4771 , how can we find log 6 ?
A. log6 = log2 x log3 = 0.3010 x 0.4771
B. log6 = log2 + log3 = 0.3010 + 0.4771
C. log6 = log2 – log3 = 0.3010 – 0.4771
D. log6 = log2 = log3 = 0.3010 = 0.4771
Answer:
B. log6 = log2 + log3 = 0.3010 + 0.4771
Step-by-step explanation:
log 2 = 0.3010
log 3 = 0.4771
log 6 = ?
6 = 3 * 2
log 6 = log (3 * 2)
According to log rules;
log (a * b) = log(a) + log (b)
This means;
log 6 = log 3 + log 2
Inserting the values they represent;
log 6 = log 3 + log 2 = 0.4771 + 0.3010
Correct option:
B. log6 = log2 + log3 = 0.3010 + 0.4771
A teacher is making a seating chart in order to group his class of 30 students. He puts 5 students in each group.
What should the teacher do to figure out how many groups he will have?
Answer:
The teacher should divide the amount of students by 5, that way they'll find how many groups they'll have. And the amount of groups they'll have is 6 groups of 5 students, you didn't ask for this part but I decided it'd be best to add it. Hope this helps, have an amazing day you awesome human! ^w^
Step-by-step explanation:
Help what is the value
Answer:
I love you 3566267840 and pas 123456
Simplify "6+2y-3+4y"