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Q6: 24 students in a class took an algebra test.
If 18 students passed the test, what percent passed?
Answer:
%
Answer:
25%
Step-by-step explanation:
18/24 passed that reduces 3/4.
So 1/4 didn't pass
Zayd can row 3/8 of a mile in 1/4 of an hour. What is the unit rate the describes the miles per hour?
Answer:
1.5mph
Step-by-step explanation:
Given parameters:
Distance sailed = [tex]\frac{3}{8}[/tex]miles
Time taken = [tex]\frac{1}{4}[/tex]hr
Unknown:
Unit rate of sail in miles hour = ?
Solution:
This is also the speed of the sail. It is the distance divided by time taken.
Speed = [tex]\frac{distance}{time}[/tex]
Speed = [tex]\frac{\frac{3}{8} }{\frac{1}{4} }[/tex]
Speed = [tex]\frac{3}{8}[/tex] x 4 = 1.5mph
What is the answer to this math problem; 12 5/6x-14x+ 1/6x
Answer: wyd are you mad at me
Answer: Who are
Step-by-step explanation:
what is the slope of (-3,-5) (-2,-2)
Answer:
m=3
Step-by-step explanation:
What is the product of the polynomials below?
(5x2 - x-3)(2x+6)
A. 10x3 + 28x2 + 12x +18
B. 10x2+28x2 + 12x +3
O C. 10x2 +28x2 - 12x-18
D. 10x2 +28x2 - 12x-3
How do I work out the size of angle x
what the slope of(4,-13) (8,-8)
Answer:
5/4
Step-by-step explanation:
1. -13 - -8 = -5
2. 4-8 = -4
3. -5/-4 = 5/4
can someone please tell me how to solve this
Answer:
21.33 units (rounded)
Step-by-step explanation:
The height, x, can be determined through the Pythagorean Theorem:
a^2+b^2=c^2 (where b will be our height)
(22/2)^2+b^2=24^2
121+b^2=576
b^2=455
b=21.33072901
So the height is about 21.33 units
About this question, look at the photo
Answer:
27/20 or 1.35
Step-by-step explanation:
plz mark brainliest
33
34
11) If the sales tax rate in NC is 7%, how much tax
would I pay on a $23 pair of boots?
Answer:
$1.61
Step-by-step explanation:
Tax paid = 7% of $23
= 0.07*23
= $1.61
Plz help out!! And no this is not a test :)
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Answer:
B = (-4, 5)
Step-by-step explanation:
Reflection over the origin changes the signs of the coordinates.
(x, y) ⇒ (-x, -y)
(4, -5) ⇒ (-4, 5)
Point B is (-4, 5).
Answer:
(-4,5)
Step-by-step explanation:
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what is the inverse of R(x)= 2(4x)
Answer:
The inverse function is y=x−24 .
Step-by-step explanation:
the equation of the line that has a slope of
-23 that passes through the point (5, 1). Which form did you choose to write the equation in and why?
Answer:
I used the y=Mx+b equation because it has a good job showing each of the elements in the equation.
Step-by-step explanation:
The slope is -2/3 so if you add it to (5,1) it would be (3,4) as you just add three and subtract to to the point. I’m going to use for this equation as it is more simple and it gives a good job showing what each element is in the equation. M is the slope, so now we have y= -2/3x +b. To find b, substitute x and y for a point on this line which I will use the point (3,4) for. Now, multiply -2/3 by 3 and you will get -2 after. Now you have 4=-2+b which the answer would be 6.
This is just an example of finding the equation, which form I used, and why.
If x = 2 work out the value of 4x 2
Answer:
16
Step-by-step explanation:
First plug in 2 as the "x" in 4x
so 4 times (2) times (2)
and if you mutiple 4 x 2 you get 8
then 8 times 2 is 16
The results of a survey of customers at PetSmart showed that 27 owned dogs, 38 owned cats, and 16 owned both dogs and cats. How many people were surveyed?
Answer:
81 people
Step-by-step explanation:
addition pretty much
(a–3b)(a+3b)+(2a–3b)2–4a(b–a)
Answer:
Step-by-step explanation:
5a²-9b²+4a-6b-4ab
x+5y=20
x+3y=14
x=
y=
Answer:y = − 1 5 x + 4
Step-by-step explanation:
Is the relation in the mapping below a function? Explain.
Domain
1,3,5,7
Range
2,4,6
Answer: No
Step-by-step explanation:
The range and the Domain aren’t equal
X=-4y + 4
2x + 8y =8
How many solutions are there?
Answer:
One solution.
Step-by-step explanation:
solve what is 1/2 x 15
Answer:
7.5
Step-by-step explanation:
it's basically just 15 divided by 2
The equivalent value of the expression (1/2 x 15) is 7.5.
What is algebraic expression?In mathematics, an algebraic expression is an expression built up from constant algebraic numbers, variables, and the algebraic operations.
Given is to solve the expression as -
1/2 x 15
We can write the expression as -
{x} = 1/2 x 15
{x} = 15/2
{x} = 7.5 x 2/2
{x} = 7.5
Therefore, the equivalent value of the expression (1/2 x 15) is 7.5.
To solve more questions on expressions, visit the link below -
https://brainly.com/question/27911936
#SPJ5
The value of (a+b)sq + (a-b)sq is
Answer:
2asq
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
(a + b)sq + (a - b)sq
Step 2: Simplify
Distribute sq: asq + bsq + asq - bsqCombine like terms: 2asqFour groups of students will clean a total of 3.25 miles of the trail along Lady Bird Lake. Each group will clean the same length of the trail. What length of the trail will each group clean?
a man earned and interest of 240 in 4 years at 20%per annum simple interest. calculate the principal
Answer:
Step-by-step explanation:
P x 20/100 x 4=240
1/5 x 4p =240
4/5p x5=240 x 5
4p/4=1200/4
p=300
We need I = prt.
240 = p(0.20)(4)
240/[(0.20)(4)] = p
Use your calculator to calculate the left side.
Find the value of f(-3).
Answer:
It's 27
Step-by-step explanation:
2. The envelope below has a mailing label. L(x) = 6x + 5 W(x) = 6x + 5 M(x) = x +4 NOx) = x + 2 MR. AL GEBRA 123 INFINITY WAY POLYNOMIAL, XY 11235 a. Let A(x) = L(x).W(X) - M(x)•N(x). Find A(x).
Answer:
A(x) = 35x² + 54x + 17
Step-by-step explanation:
Relation in the polynomials has been defined as,
A(x) = L(x).W(x) - M(x).N(x)
L(x) = (6x + 5)
W(x) = (6x + 5)
M(x) = (x + 4)
N(x) = (x + 2)
By substituting the polynomials in the expression,
A(x) = (6x + 5)(6x + 5) - (x + 4)(x + 2)
= (6x + 5)² - (x + 4)(x + 2)
= (36x² + 60x + 25) - (x + 4)(x + 2) [Since, (a + b)² = a² + 2ab + b²]
= (36x² + 60x + 25) - [x(x + 2) + 4(x + 2)]
= (36x² + 60x + 25) - [x² + 2x + 4x + 8]
= (36x² + 60x + 25) - [x² + 6x + 8]
= (36x² - x²) + (60x - 6x) + (25 - 8)
= 35x² + 54x + 17
A(x) = 35x² + 54x + 17
5. The largest mosaic in the world is on the walls of the central library of the
Universidad Nacional Autonoma de Mexico in Mexico City. The mosaic depicts
scenes from the nation's history and covers an area of 4000 m2. If the entire
mosaic were on one square wall, what would the dimensions be? Estimate your
answer to the nearest whole number and then use your calculator to get the
length to the nearest HUNDRETH.
Answer:
63.25mStep-by-step explanation:
The area of the square wall = L² where;
L is the length of the wall.
Given
Area of the mosaic = 4000m²
Substitute into the formula and get L
4000 = L²
Square root both sides
√4000 = √L²
√4000 = L
Rearrange
L = √4000
L = 63.25m (to the nearest hundredth)
Hence the length to the nearest hundredth is 63.25mSolve for the value of y.
Answer:
y=6
Step-by-step explanation:
add both expressions together. 14y+6. Then set this equal to 90, because this is a 90 degree angle. Solve for y. 84=14y. y=6
Step-by-step explanation:
90= 6y+5+8y+1
14y=84
y=6
Alyssa has 2.1 meters of ribbon to make bows. She needs to make 3 bows. If she uses an equal amount of ribbon for each of her bows, and uses all of the ribbons she has, how much ribbon will she use for each bow?
Use the Math Learning Center App, Number Pieces to show your thinking using place value blocks. Enter your answer and explain how you used the place value blocks to model the problem.
Answer:
0.7 ribbon
Step-by-step explanation:
To find how much is needed, use division.
So, to show your work:
2.1 divided by 3 = 0.7
I hope this is what you were looking for and I hope this is the correct answer for you!!! :)
What is the measure of \large \angle C?
what is the value of ? pls help