Answer:
Step-by-step explanation:
parell lines have same slopes
perpendical line slope product is -1
Type the expression that results from the following series of steps:
Start with x, subtract 6, then divide by 7.
Are these ratios equivalent?
6 men to 7 women
12 men to 14 women
Answer:
Yes 6 times 2 is 12 and 7 times 2 is 14
Answer:
6:7=12:14
12:14=6:7
:-)))
Find the area of the composite shape shown below:
6ft
9ft
3ft 4ft
3x+9=33 pls help me with this problem it will be helpful
Answer:
8
Step-by-step explanation:
First we subtract 33 by 9 which equals 24. Then we divide 24 by 3 which equals 8.
To check your answer, multiply 8 by 3 then add 9.
The solution to which system of equations has an y-value of 0?
(A) x + 2y=-1; y = 3x + 3
(B) 3x – y=2; x + 2y=-1
y= 3x + 3; 2x + 3y=01
(D) 2x + 3y=0; x + 2y=-1
Answer:
option D I think So
Step-by-step explanation:
give me the branirst
The only system of equation (A) has a y-value of 0.
What are Systems of equations?Simultaneous equations, a system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.
There are four methods for solving systems of equations: graphing, substitution, elimination, and matrices.
To find the solution with a y-value of 0, we need to substitute y=0 in each equation of the system and solve for x.
(A) x + 2y = -1
x + 2(0) = -1
x = -1
y = 3x + 3
y = 3(-1) + 3
y = 0
The solution to system A has a y-value of 0.
(B) 3x - y = 2
3x - 0 = 2
x = 2/3
x + 2y = -1
(2/3) + 2y = -1
2y = -1 - (2/3)
2y = -5/3
y = -5/6
The solution to system B does not have a y-value of 0.
(C) y = 3x + 3
y = 3x + 3 implies that y cannot be 0, so this system cannot have a solution with a y-value of 0.
(D) 2x + 3y = 0
2x + 3(0) = 0
2x = 0
x = 0
x + 2y = -1
0 + 2y = -1
y = -1/2
The solution to system D does not have a y-value of 0.
Therefore, the solution to system A has a y-value of 0.
Learn more about the System of equations here:
https://brainly.com/question/12628931
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Write an equation for the amount of money, , that will be collected if boxes of chocolate bars are sold. Which is the independent variable and which is the dependent variable
Answer:
Kindly check explanation
Step-by-step explanation:
Let amount of money = C
If the number of chocolate bars sold = x
Let cost per chocolate bar = p, since cost per bar isn't stated
Amount of money that will be collected :
C(x) = P * x
The dependent variable is the Amount of money that will be collected as the amount of money depends on the number of chockate bars sold
The number of chocolate bars sold us the independent variable as it dictates the amout of money to be collected, hence it is the predictor variable.
Tristan paid $17.50 to buy 2 pounds of peanuts and 3 pounds of cashews. Rivka paid $19.00 to buy 5 pounds of peanuts and 2 pounds of cashews. If both people paid the same price per pound, what was the price per pound for the cashews?
A. $2.00
B. $3.80
C. $4.50
D. $8.75
Answer:
C. $4.50
Step-by-step explanation:
hello, there.
1) 2p + 3c = 17.50
2) 5p + 2c = 19.00
:
Solve equation 1 for p
:
p = (17.50 - 3c) / 2
:
Substitute for p in second equation
:
(5(17.50 - 3c) / 2) + 2c = 19.00
:
Multiply both sides of = by 2
:
(5(17.50 - 3c)) + 4c = 38.00
:
87.50 - 15c + 4c = 38.00
:
-11c = -49.50
:
c = 4.50
:
---------
Cashews are $4.50 per pound
--------------
:have a great day.
Answer:
C
Step-by-step explanation:
Let p represent the cost for one pound of peanuts and let c represent the cost for one pound of cashews.
Two pounds of peanuts and three pounds of cashews cost $17.50. So:
[tex]2p+3c=17.5[/tex]
Five pounds of peanuts and two pounds of cashews cost $19.00. So:
[tex]5p+2c=19[/tex]
This yields a system of equations.
We can solve this using elimination. We can multiply the first equation by -5, and the second by 2. Therefore:
[tex]-5(2p+3c)=-5(17.5)[/tex]
Multiply:
[tex]-10p-15c=-87.5[/tex]
And:
[tex]2(5p+2c)=2(19)[/tex]
Multiply:
[tex]10p+4c=38[/tex]
Now, we can add the two equations together:
[tex](-10p-15c)+(10p+4c)=(-87.5+38)[/tex]
Combine like terms:
[tex]-11c=-49.5[/tex]
Therefore:
[tex]c=4.5[/tex]
So, a pound of cashews costs $4.50.
Our answer is C.
Notes:
To solve for the cost for peanuts, we can use the first (or second equation) again:
[tex]2p+3c=17.5[/tex]
Substitute:
[tex]2p+3(4.5)=17.5[/tex]
Solve for p:
[tex]2p+13.5=17.5\Rightarrow 2p=4\Rightarrow p=2[/tex]
So, a pound of peanutes cost $2.00.
What is the value -5(-2)
Answer: 10
Step-by-step explanation: When multiplying integers,
if the signs are the same, the product is positive.
So a negative times a negative always equals a positive.
Therefore, -5(-2) is 10.
Answer:
10
Step-by-step explanation:
-5 x -2 = 10
can someone help me with this and show me the steps if you don't mind
Answer:
(x+8)(x+5)
Step-by-step explanation:
Since we know x2 is equivalent to x times x we can automatically start by filling in the first two spaces with x. Then since we know that we're going to need two numbers that equal forty since it's part of the equation we can get two number that will also add up to 13x which is 8 and 5. We then get (x+8)(x+5). (Sorry lol this question is kind hard to explain over the computer.)
A taxi cab cost $1.75 for the 1st mile and .75 for each additional mile you have $20 to spend on your ride was in a quality could be certified and how many miles you can travel if N is a number of additional miles
Answer: 0.75n+1.75 ≤ 20 because you have to have the number of additional miles with the cost of $0.75 per mile but then you have to add the original first mile with a cost of $1.75. It has to be less than or equal to because you only have $20 to spend you can't spend more than that you have to spend that amount or less.
Step-by-step explanation:
Answer:
25 miles or 25.333
Step-by-step explanation:
AYO CAN YOU BE MY BAKA (HELP ME WITH MATH)
Answer:
Addition
Step-by-step explanation:
1) Add 275 to both sides.
[tex]800 + 275 = p[/tex]
2) Simplify 800 + 275 to 1075.
[tex]1075 = p[/tex]
3) Switch sides.
[tex]p = 1075[/tex]
We need to add in order to solve the equation.
so therefor, the answer is option G.
Answer:
Addition
Step-by-step explanation:
please help!! it’s about percents and finding the totals cost!!!help fast
Answer:658.73
Step-by-step explanation:
6.25 percent of 619.98 is $34.74875
we round $34.74875 to $34.75
then we add
619.98 + 34.75 = 658.73
PLEASE MARK BRAINLIEST AND GIVE 5 STARS.
The population of a school is 800 and is decreasing at a rate
of 2% per year; 4 years
Answer:
i think the answer is 738
Find the value of x in the figure shown.
389 / 106
Round off to the nearest whole number
Answer:
thi is the answer 3.66981132
Step-by-step explanation:
u just divided it
Will's suitcase must weigh less than 50 pounds. Choose the inequality that best represents the situation. a: x ≤ 50 b: a<50
Answer:
A
Step-by-step explanation:
In the following diagram, m AC=97º and m CD= 112°. Find the measure of angle
x.
Answer:
In the diagram, assume that segments are tangents if they appear to be. Find the ... Find the length of an arc with measure 62° in a circle with radius 2 m. 21. I hope this helps u
Step-by-step explanation:
y = x^2+8x-7
Use the formula x=-b/2a
b = 8
a = 1
using the formula given
x = -8/2
x = -4
7m+9, for m=2.
Someone solve please
The university of Toronto has about 91,000 student registered. If this number is rounded to the nearest thousandth, which of the following is a possible number of students? Answer ASAP please!
A. 92,392
B. 90,439
C. 91,142
D. 91,984
product of (7x + 2) and (5x − 11)?
Step-by-step explanation:
Answer:
[tex]35x^{2}-67x-22[/tex]
Step-by-step explanation:
:)
The number pattern shows a skip-counting rule. 5,20,35,50,65. Which number pattern follows the same rule?
Answer:
You keep adding 15.
Step-by-step explanation:
5+15=20
20+15=35
35+15=50
50+15=65
Find the surface area of a cube with sides = 9 inches. Think about finding area of 1 face and then multiplying by 6.
Answer:
Step-by-step explanation:
Lines A and B parallel lines cut by the transversal c. If the measure of angle 5 is 123, what is the measure of angle 1?
Will mark b if correct:)
Nathan is going to invest in an account paying an interest rate of 4.8% compounded continuously. How much would Nathan need to invest, to the nearest ten dollars, for the value of the account to reach $1,310 in 13 years?
Answer:
700
Step-by-step explanation:
Answer:
$712
Step-by-step explanation:
A x (1 + 4,8%)¹³ = 1310
=> A = 1310 : (1 + 4,8%)¹³ = 712,1551532
What is the value of y in 6y+4
Answer:
1.5y
Step-by-step
what is this trying to bring my grades up pls help
Answer:
Answer down below!
Step-by-step explanation:
The origin is the middle of the plot, which is represented by the coordinates (0,0)
So, yoy would click on the middle where it says 0.
Which expression is equivalent to 4m + 3?
A. 2(2m + 3)
B. -2(-2m + 3)
C. (-2)m - (-1)3 + (-2)2m
D. (-2)m - (-3)1 + (2)3m
Answer:
D)
Step-by-step explanation:
4m+3
What is the value of tangent theta in the unit circle below? One-half StartFraction StartRoot 3 EndRoot Over 3 EndFraction StartFraction StartRoot 3 EndRoot Over 2 EndFraction StartRoot 3 EndRoot
Answer:
[tex]\frac{1}{\sqrt{3} }[/tex]
Step-by-step explanation:
A unit circle is defined as a circle of unit radius (that is the radius of the circle is equal to 1). In trigonometry, the unit circle is a circle with a radius of 1, while centered at the origin (0, 0) in the Cartesian coordinate.
In the unit circle below, we can see that the line touches the unit circle at point [tex](\frac{\sqrt{3} }{2} ,\frac{1}{2})[/tex], therefore to find the tangent of theta, we use the formula:
[tex]tan\theta = \frac{y}{x} \\\\tan\theta=\frac{\frac{1}{2} }{\frac{\sqrt{3} }{2} } =\frac{1}{2}*\frac{2}{\sqrt{3} } \\\\tan\theta=\frac{1}{\sqrt{3} }[/tex]
Answer:
StartFraction StartRoot 3 EndRoot Over 3 EndFraction
Step-by-step explanation:
I think thats what the answer above meant.
Factor the expressions.
9. 3x + 2410.
10. 9c - 63
solve both and number the answers
Answer:
[tex]3x + 2410 \\ x = 2410 - 3 \\ x =2407 \\ \\ \\ 9c - 63 \\ 9(c - 7) [/tex]