Answer:
Step-by-step explanation:
-x+2y=6
-x+8y=12
_________
-6y = -6 ( subtracting 2 equations)
y=1
x=-4
worth 20 points.
Paulette’s brother gave her his DVD collection of 25 movies when he went to college. She started buying DVDs each month after that. The line-of-best fit which models the relationship between the number of DVDs Paulette has in her collection (n ) and the time since her brother went to college in months (m ) is given in the box.
n=1.8m+25
To the nearest number of DVDs, what is the approximate number of DVDs in Paulette’s collection after 14 months?
The approximate number of DVDs in Paulette’s collection after 14 months is 75 DVDs.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
We have,
let the collection of DVDs ne n and the time spend is m.
and, the Equation for the situation is
n = 1.8 m + 25
Now, the number of DVDs in collection after 14 months is
= 1.8 (14)+ 25
= 50.2
So, the total number of DVDs are
= 50 + 25
= 75
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Are the lines y=-2x-4 and 6x+3y=2 parallel? Answer Yes or No.
Yes, They are parallel
Brainliest?
Answer:
YesStep-by-step explanation:
Given lines:
y=-2x-4 and 6x+3y=2One is given in slope-intercept form, the second one in standard form
Lets bring the second one to slope-intercept form:
6x + 3y = 23y = - 6x + 23y/3 = -6x/3 + 2/3y = -2x + 2/3As we see both of the lines have the slope of -2
Since the slopes are same, the lines are parallel
which expression is equivalent to -3x + 24
Answer:
-1x + 8
Step-by-step explanation:
Since you did not give any multiple choice options, here is a problem that is equivalent, because I divided the whole problem by 3, making it exactly equal to the other problem in size.
Please help me with this question I don’t quite get it
Answer: 8000
Step-by-step explanation:
16/5 divided by 7/4?
Answer:
28/5
Step-by-step explanation:
Answer:
1.8285714285714285714285714285714 is the answer. Round to the nearest hundredth.
1.83
Step-by-step explanation:
16/5 = 3.2
7/4 = 1.75
3.2/1.75 = 1.8285714285714285714285714285714
#teamtrees #WAP (Water and Plant) #STT (Save the Trees)
Find the probability and its complement.
Write your answers as a percent. Round to the nearest percent. You do not need to put the % sign.
There are 14 girls and 12 boys in a class.
P(boy) -
P(NOT boy) -
8x3 = (-2)(A)
Find the missing factor A that makes the equality true
Answer: -4x^2
Step-by-step explanation:
Find the slope of a line with x-intercept 5 and y-intercept -3.
Answer:
3/5
Step-by-step explanation:
When you are given an x-intercept, the y value will always be 0.
When you are given a y-intercept, the x value will always be 0.
With the intercepts we are given, we can make two points we can solve for the slope with.
(5, 0)
(0, -3)
Now, find the slope with the formula [ y2-y1/x2-x1 ]
-3-0/0-5
-3/-5
3/5 or 0.6
Best of Luck!
5x + 4y = 6 and y = 5/4x + 5
Answer:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(−7/5,13/4)
Equation Form:
x=−75,y=134x=-75,y=134
graph: y - 3 = 1/2 ( x + 2 )
Step-by-step explanation:
(1) Create a table containing a few values of x and y
y - 3 = ½(x + 2)
y = ½(x + 2) + 3
x y
-10 -1
-6 1
0 3
6 7
10 9
(2) Plot your points
Draw dots at the coordinates of each point.
(3) Draw the graph
Draw a smooth line through the points.
Extend the line in both directions to the edges of the plot area.
Your graph of y - 3 = ½(x+2) should look like the figure below.
Have a beautiful day!
Answer: Slope = 1/4 Y intercept is (0,4) X Intercept is (-8,0)
Step-by-step explanation: you have to graph the points by using the slope and Y intercept
Answer each question. Would they be functions, or not functions?
Worth lots of points, will mark brainliest!
Answer:some are not functions and some are functions
Step-by-step explanation:
**HELP ME ASAP! THANKS** What is the area of the triangle?
what is 7+1000000000000000000000000000000000000000
Answer:
1000000000000000000000000000000000000007
Step-by-step explanation:
Ms. P brought 54 chocolates to class and Mr. O brought 72 candies. They want to package them in gift
bags to hand out to students that will give them equal amounts of Chocolates and Candies. What is the Greatest Number of Bags
they can put together! Please hurry
Answer:
18
Step-by-step explanation:
54/18= 9
72/18 =12
both numbers are devisable by 3, 6, 9 or 18
the greatest number there to use is 18
Answer:
18 bags
Step-by-step explanation:
If you put 3 chocolates in 18 bags you get 54 chocolates in total. Because 3 cannot be split down any lower it will provide the maximum number of bags able to be created.
There will be 3 chocolates and 4 candies in each bag. Making it evenly split to its greatest possibility.
Melanie needs 12 lb of metal with 59% metal. If Melanie combines one metal with 25% silver and another 68% metal, how much of each metal does she need.
Answer:
c
Step-by-step explanation:
please help...given that elm and oak street are parallel, find m
Answer:
102°
Step-by-step explanation:
(3x - 12)° + (2x + 2)° = 180°
5x - 10 = 180 ⇒ x = 38
m∠A = (3x - 12)°
m∠A = (3×38 - 12)° = 102°
Answer:
∠a = 3x -12 ( Being corresponding angle)
Now
(3x-12) + (2x + 2) = 180 ( Sum of straight angles)
5x - 10 = 180
5x = 190
x = 38
m∠a = 3x -12 = 3*38 -12 = 102
Step-by-step explanation:
If 3x + 8x + 4x = 6x + 63, then what is 5x + 2
Answer:
37
Step-by-step explanation:
3x + 8x + 4x = 6x + 63 ( combine like terms)
>15x = 6x + 63 (subtract from both sides)
-6x. -6x
-----------------
>9x = 63. (divide both sides by 9)
--------------
9. 9
> x = 7 ( use this to plug in for your new equation)!
5(x) + 2
>5(7) + 2 (multiply 5*7)
> 35 +2 (then add)
> 37 is your answer
Then choose whether you would find the percent increase or percent decrease: A town’s population was 36,067 in 2005. Ten years later, the population is 37,902.
Answer:
Increase
Step-by-step explanation:
1,835 more people came
Jamal used his savings to buy 15 pounds of flour at $0.42 per pound,
8 pounds of butter at $3.99 per pound, 1 pound of salt at $0.67
per pound, and 30 pounds of apples at $1.49 per pound. How much of
his saving did he use?
Plz help I’m doing a math test and my grades are pretty low
Answer: $83.49
Step-by-step explanation: You get every pound and multiply it by the money and add everything at the ned
Explain why the commutative property does not work for subtraction or division
Answer:The reason there is no commutative property for subtraction or division is because order matters when performing these operations.
Step-by-step explanation:
please help i will give u brainlist
Answer:
The answer will be x>4 once you solve for x.
Step-by-step explanation:
Hope this helps!!
Amanda is hiking with her daughter, Mia who is only 1 yaar old and has very short leg. For every 3 steps Amanda makes, Mia takes 5 steps just to keep up.
Need help fast trying to take a test plsss help
Please help me out!
Please help me with this !
Answer: x intercept : (3/2 , 0)
y intercept: (0, -2)
Step-by-step explanation:
how much less is 3,664 than 5,664 plz show ur working out AND THANK YOU A LOT ❤❤❤❤
Answer:
3,664 is 2000 less than 5,664 because if you show your work, it is just subtraction. 5664
-3664
---------
2,000
What are their perimeters?
[tex]P_1=2\cdot2x+2\cdot(2x+7)=8x+14[/tex]
and
[tex]P_2=2x+x+x+8+x+6+x+2x=8x+14[/tex]
Seems like thier perimeters are equal.
HELP ME ASAP IF U CAN!!! a baker needs sugar syrup that is 40% sugar how many gallons of water shoud he add to 5 gallons of 70% sugar syrup to make the 40% syrup. WILL MAKE BRAINLYEST
Answer:
15/4
Step-by-step explanation:
Equation: 40(5+x)=70*5+0x
Solve:
200+40x=350
40x=150
x = 15/4
15/4 gallons is the answer.
3.75 gallons of water should he added to 5 gallons of 70% sugar syrup to make the 40% syrup
A linear equation is given by:
y = mx + b;
where y, x are variables, m is the slope of the line and b is the y intercept.
Let x represent the amount of water in galloons needed to be added to make 40% sugar. Hence:
40% of (x + 5) = 70% of 5
0.4x + 2 = 0.7 * 5
0.4x = 1.5
x = 3.75
Therefore 3.75 gallons of water should he added to 5 gallons of 70% sugar syrup to make the 40% syrup
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Using the greatest common factor, reduce the fraction 32/48 to its simplest form.
A. 2/3
B. 8/12
C. 16/16
D. 4/12
Answer:
2/3
Step-by-step explanation:
16 is the greatest common factor
3(2x–7)=5–(1–x)
help please
Answer:
x=3
Step-by-step explanation:
3(2X-7)=5-(1-X)
6X-21=-5-1+X
6x-x=-5-1+21
5x=21-6
5x=15
x=3
The sum of three consecutive integers is 84. What are the three numbers?