Answer:
y = 9x
Step-by-step explanation:
“Twelve less than a number.”
Please help me with this question!! Thank you! ❤✨
Answer:
2 and 1/2
Step-by-step explanation:
(the first one)
In which proportion does x have a value of 4?
Answer:
B
Step-by-step explanation:
Using the method of cross- multiplication
A
7x = 252 ( divide both sides by 7 )
x = 36 ≠ 4
B
21x = 84 ( divide both sides by 21 )
x = 4
C
5x = 2 ( divide both sides by 5 )
x = 0.4 ≠ 4
D
5x = 200 ( divide both sides by 5 )
x = 80 ≠ 4
The proportion where x = 4 is B
Another submarine's descent can be represented as `y=-240x`, where u is the elevation and x is time in hours. How long will it take this submarine to make the descent (2,100 feet below the surface)?
Answer:
The time it will take is 8hours 45mins.
Step-by-step explanation:
Since y = –240x represents a submarine descent. We are looking for how long, that is the time, it will take for the submarine to make a descent of 2100. We know that y is the elevation, if it is descending it will be in the negative direction, making it -ve.
A descent of 2100 means y = –2100. Hence,
–2100 = –240x
x = –2100/–240 = 8.75hours = 8hours 45minutes. (0.75hours = 3/4hours = 3/4 x 60mins = 45mins).
PLEASE ANSWER ASAP... MANY THANKSSS <3
A straight line is parallel to Y=3x-1 and passes through (0,4)
What is the equation of the line??
9514 1404 393
Answer:
y = 3x + 4
Step-by-step explanation:
The given line is in the form ...
y = mx + b
where m is the slope (3) and b is the y-intercept (-1).
The parallel line will have the same slope. The given point (0, 4) is the y-intercept, so the desired equation is ...
y = 3x +4
Could someone help me with this im so confused
A fish tank is a rectangular prism that is 30 inches long, 24 inches deep, and 18 inches high. How much water
will it hold:
a. In cubic inches? (2 marks)
b. In cubic feet?
what is the mathematical sentence of "A number increasd by 7 is 15?
A n - 7 = 15
B n + 7 = 15
C 7n = 15
D. n/7 = 5
Answer:
B
Step-by-step explanation:
A number increased by 7 means, 7 was added to the number and the result is 15
GIVING BRANLIEST
Which relationships describe the angle pair x° and 71º?
Select each correct answer.
17.) An ostrich can run 174 feet in 3 seconds. What is the slope of the line and what does it
represent?
The list bellow shows the different choices of pizza at the local pizza shop .Peperoni 11 Supreme 7 6 cheese Hawaiano 3 based on the results if 189 pizza were sold then how many could be expected to be cheese
Answer:
The number expected to be cheese are 42 Pizzas
Step-by-step explanation:
According to the information provided, the total choices of Pizza at a local pizza shop are as follows:
Pizza Choice
Peperoni 11
Supreme 7
Cheese 6
Hawaiano 3
Total 27
The total pizza sold were 189, out of which the number expected to be cheese will be calculated by dividing the total number of choices and multiplying it with the required type of pizza chosen. This is done as follows:
189 / 27 * 6 = 42 Cheese Pizza
Mr. Jackson decides to build a planter in the shape of a cube for his wife. The top of the planter will be open so his wife can plant and water her flowers. The perimeter of the bottom of the planter is 12 feet.
The question is incomplete. Here is the complete question.
Mr. Jackson decides to build a planter in the shape of a cube fo rhis wife. The top of the planter will be open so his wife can plant and water her flowers. The perimeter of the bottom of the planter is 12 feet.
How many square feet of material does Mr Jackson need to build the planter?
(a) 27 square feet
(b) 45 square feet
(c) 60 square feet
(d) 720 square feet
Answer: 45 square feet
Step-by-step explanation: A cube is a regular solid with six square faces.
Square is a quadrilateral with 4 right angles and 4 equal sides. So a cube is solid formed by 6 squares.
Perimeter is the sum of all the sides. For a square, perimeter is given by
P = 4s
Then, side of the bottom is
[tex]s=\frac{P}{4}[/tex]
[tex]s=\frac{12}{4}[/tex]
s = 3
Area of a square is
[tex]A=s^{2}[/tex]
[tex]A=3^{2}[/tex]
A = 9
The planter is a cube with 5 faces, because the top is open. Then, total area is
[tex]A_{t}=9+9+9+9+9[/tex]
[tex]A_{t}=[/tex] 45
Mr Jackson will need 45 square feet of material to build the planter.
Answer:
45 feet
Step-by-step explanation: A cube is a regular solid with six square faces.
Square is a quadrilateral with 4 right angles and 4 equal sides. So a cube is solid formed by 6 squares.
Perimeter is the sum of all the sides. For a square, perimeter is given by
P = 4s
Then, side of the bottom is
s = 3
Area of a square is
A = 9
The planter is a cube with 5 faces, because the top is open. Then, total area is
45
Mr Jackson will need 45 square feet of material to build the planter.
What is the y-intercept of the line that passes through the points (2, -1) and (-3, 9)?
Answer:
y- intercept: 3
Step-by-step explanation:
m = (y-y')/(x-x')
y = mx + b b: y intercept
m = (9 - -1) / (-3 -2) = 10 / -5 = -2
b = y - mx = -1 - (-2)*2 = -1 + 4 = 3
Solve for x: 14x = 196.
(Only the number)
Answer:
14
Step-by-step explanation:
Answer:
the answer is X = 14
Step-by-step explanation:
So you need to single out the X
You do this by doing the opposite of X,
right now X is being multiplied by 14
The opposite of Multiplaction is division
That means you divide X by 14
But dont forget, what you do one side you do to the other.
This means you also Divide 196 by 14
196 ÷ 14 = 14
meaning X = 14
A variable needs to be eliminated to solve the system of equations below.
Choose the correct first step.
-10x + y = 64
-10x + 5y = 40
Answer:
-10x + y = 64
Step-by-step explanation:
hope it helps
Deirdre joelle are reading the same book Deirdre Read three times as many pages of the book as Jowell together the read 48 pages which equation can be solved to. Find the number of pages Joelle reads
Answer:
3x + x = 48
12 pages
Step-by-step explanation:
let the number of pages read by Joelle be represented by x
Joelle = x pages
Deirdre = 3x (since she reads 3 times as much pages as Joelle)
3x + x = 48
4x = 48
x = 12 pages
So Joelle reads 12 pages
Find 3 ratios that are equivalent to the given ratio: 20:25.
Choices: (Find 3 ratios)
A. 4:75
B. 4:5
C. 60:5
D. 60:75
E. 40:75
F. 4:50
G. 40:5
H. 40:50
Answer:
A,B,G
Step-by-step explanation:
The diameter of a circl
10. d = 6.7 in.
grace borrows $135,000 for a new house with an interest rate 3.5% for 30 years. how much will she pay for the house in total at the end of 30 years
Answer:
378,917.15
Step-by-step explanation:
Annual compound interest formula:
[tex]AV=PV(1+i)^n\\\\AV=135000(1+.035)^{30}\\\\135000*2.8067937047=378917.15[/tex]
what is 44 > 7+s + 26
Answer:
s<11
Step-by-step explanation:
44>7+s+26
Switch sides:
7+s+26<44
Group like terms:
s+7+26<44
Add the numbers:7+26=33
s+33<44
Subtract 33 from both sides:
s+33-33<44-33
Simplify:
s<11
Solve v^2 -8v-33=0 by factoring.
Answer:
v= -3 and v= 11
Step-by-step explanation:
v^2 - 8v -33 = 0
v^2-11v+3v-33=0
v(v-11) +3(v-11)=0
(v+3)(v-11)=0
v+3=0 and v-11=0
v=-3 v=11
4 batteries for 5.99
7. Which set of ordered pairs represents a function?
A) {(-2,1),(-1,0). (1,-1), (2,-2), (3,-3)}
B) {(-2,57, (-2,5), (-2,7),(-2,9), (-2,11)}
C) {(1,5), 7,2), (9,1), (9,7), (2,7)}
D) {(-4,0), (-2,1),(0,2), (-2,4), (-4,6)}
Answer:
a
Step-by-step explanation:
to be a function, every x has to have exactly one y, so there can't be the same number x twice wirh different y's
slope = 2/3 ; y-intercept = -1
• Write the linear equation in slope intercept form!
helppppp !!
Answer:
y=2/3x-1
Step-by-step explanation:
slope intercept form is y=mx+b
where m is the slope and b is the y-intercept
You already know that the slope is 2/3 and the intercept is -1 so all you have to do is plug it in
y=2/3x-1
-7 2/3 + (5 1/2) + 8 3/4 = Need the answer asap
Answer:
answer is 7898tI don't know either thank very much for the points though
A student answered 63 problems on a test correctly and received a grade of 70%. How many problems were on the test, if all the problems were worth the same number of points?
Total no. of problems= x
No of questions answered correctly= 63
Percentage = 70%
A/q,
70/100*x= 63
x= 63*100/70
x= 90
There were 90 questions in the test.
Hope it helps you.
What is 24 + 8.25% ?
Answer: 24.0825%
Step-by-step explanation:
8.25% as fraction: 33/400
24+33/400
Convert element into fraction: 24x400/400
24x400/400+33/400= 9633/400
Final step: Make it into a decimal
24.0825% is your answer
Which angles are supplementary to 1 ( Select all that apply)?
Angles that are supplimentary to ∠1 are ∠4 and ∠2 as they form and angle which measures 180°.
What is a transvarsal line?A line is called a transvarsal line when it intersects two or more than two lines at two or more than two different points.When a transvalsal intersect two lines at two different points two pairs of alternate angle forms and if they are congruent to each other then the lines which are intersected by a transvarsal are parallel to each other.
We know two are supplimentary if their sum is 180° and we also know that when two lines intersect each other their adjacent angles supplimentary to each other.
∴ Angles that are supplimentary to ∠1 are, ∠4 and ∠2 meaning ∠1 and ∠4 together form a supplimentary angle and ∠1 and ∠2 together form a supplimentary angle.
learn more about alternate angles here :
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Which of the following is a trinomial with degree 3?
a. 2xy^2
b. 3x+3x^2
c. 2x^3+xy
d. 2+5x-3x^3
Answer:
d
Step-by-step explanation:
took the test
2x³ + xy and 2 + 5x - 3x³ are trinomials with degree 3.
Options C and D are the correct answer.
What is a polynomial?Polynomial is an equation written with terms of the form kx^n.
where k and n are positive integers.
There are quadratic polynomials and cubic polynomials.
Example:
2x³ + 4x² + 4x + 9 is a cubic polynomial.
4x² + 7x + 8 is a quadratic polynomial.
We have,
The degree of a polynomial is the highest power of the variable in the polynomial.
a.
2xy² is a monomial with degree 3 (degree of x is 1 and degree of y is 2).
b.
3x + 3x² is a binomial with degree 2 (degree of x is 2).
c.
2x³ + xy is a trinomial with degree 3 (degree of x is 3).
d.
2 + 5x - 3x³ is a trinomial with degree 3 (degree of x is 3).
Therefore,
2x³ + xy and 2 + 5x - 3x³ are trinomials with degree 3.
Learn more about polynomials here:
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all of the following are types of triangles except
a obtuse
b scalene
c reflex
d equilateral