Answer:
x = 1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = 2x - 1
y = -3x + 4
Step 2: Solve for x
Substitution
Substitute in y: 2x - 1 = -3x + 4Add 3x on both sides: 5x - 1 = 4Add 1 to both sides: 5x = 5Divide 5 on both sides: x = 1Answer:
[tex]y = 2x - 1 \: and \: y = - 3x + 4 \\replacing \: the \: value \: of \: y, \: we \: get \\ 2x - 1 = - 3x + 4 \\ 5x = 5 \\ \boxed{x = 1}[/tex]
x= 1 is the right answer.write the equation of a line perpendicular to 2y+x=4 and passes through the point (2,1)
Answer:
Por favor, dame una captura de pantalla de la pregunta No entiendo esto gracias
Answer:
[tex]-2x+y=-3[/tex]
Step-by-step explanation:
Recall perpendicular lines have negative-reciprocal slopes. Since the equation [tex]2y+x=4[/tex] has a slope of [tex]-\frac{1}{2}[/tex] ([tex]y=-\frac{1}{2}x+2[/tex]), any line perpendicular to it will have a slope of [tex]-\frac{1}{-\frac{1}{2}}=2[/tex].
Therefore, we have the line:
[tex]y=2x+b[/tex] where [tex]b[/tex] is the y-intercept.
We can plug in the point it passes through to find the final equation:
[tex]1=2(2)+b,\\b=1-4,\\b=-3[/tex].
Therefore, the equation of the line perpendicular to [tex]2y+x=4[/tex] that passes through the point [tex](2, 1)[/tex] is:
[tex]y=2x-3[/tex] (slope-intercept form)
However, since the initial line given is in standard form, re-write this equation to standard form:
[tex]y=2x-3,\\y-2x=-3,\\\fbox{$-2x+y=-3$}[/tex].
5,000 people visited a bookfair in the first week. The numbers increased by 10% in the second week. how many people visited the book fair the second week?
please show your work and explain
Answer:
5500
Step-by-step explanation:
5000 + (10 / 100) x 5000 = 5000 + (1/10) x 5000 = 5000 +500= 5500 people visted the book fair in the second week
m + 7 ≥ 20, if m = 11
Answer:
False;18 ≥ 20
Step-by-step explanation:
Add 11 and 7
The left side 18 is less than the right side 20 , which means that the given statement is false.
PLZ HELP U GET POINTS AND I WILL GIVE YOU BRAINLIEST
Answer: A) 13/5
Step-by-step explanation:
Convert the fraction to a decimal by dividing the numerator by the denominator. 13/5
13/5 = 2.6
write [tex]2\frac{2}{3}[/tex] as a fraction
[tex]2\frac{2}{3}[/tex] = 8/3
Convert the fraction to a decimal by dividing the numerator by the denominator. 8/3
2.66666666667
13/5 < [tex]2\frac{2}{3}[/tex]
The left side2.6 is less than the right side 2.66666666667, which means that the given statement is true.
You have five red blocks, three yellow blocks and 2 green blocks in a paper bag. What is the probability that you reach in the bag and pick out a yellow block, put it aside and then reach in a pick out a green block?
Answer:
1/15
Step-by-step explanation:
10 blocks altogether
P(Y,G) = 3/10 x 2/9
Answer:1/15
Step-by-step explanation:
A seahorse can swim at a rate of 48 feet per hour. Convert this speed to inches
per minute.
Answer:
The Seahorse moves at 576 inches per minute
Step-by-step explanation:
if the seahorse moves at 48 feet per hour, all you would do is multiple the 48 feet with 12 inches to convert from feet to inches. So the answer is 576 inches per minute.
Answer:
2.43
Step-by-step explanation:
because thats the rogbt answer ofr me
Ulio is running in a 13.1-mile race. There are water stops every 2.75 miles along the route from the beginning of the race. What is the distance between the last water stop and the end of the race? Enter your answer in the box.
Answer:
2.1 miles
Step-by-step explanation:
Given that :
Total distance = 13.1 miles
Distance between each water stop = 2.75 miles
Distance between last water stop and end of the race
We need to find the maximum number of water stops :
Total miles / distance between water stops
13.1 / 2.75
= 4.763
Maximum number of water stops = 4
Distance to last water stop = 4 * 2.75 = 11 miles
Hence, distance between last water stop and end of Race :
Total miles - distance to last water stop
13.1 miles - 11 miles
= 2.1 miles
Does anybody know the answer to this question?
Answer:
A.
Step-by-step explanation:
A. Because the slope must be positive and cross the y axis at y = 2
5x - Зу = -7
— 2x – 3y = 19
WHICH method would be best to solve these ? Elimination, Graphing, Substitution, or none of these
Answer:
I think elimination method will the the beat and easiest method we can use in that question,
Alex constructs a scatter plot. He realizes that he needs to add one more point, which will be an outlier. Which of the ordered pairs does he still need to plot? (14,2) (2,12) (18,10) (10,6)
Answer:
(14,2)
Step-by-step explanation:
Have took the test
(14,2) is an outlier of the constructed scatter plot.
What is scatter plot?A scatter plot is a set of points plotted on a horizontal and vertical axes. Scatter plots are important in statistics because they can show the extent of correlation, if any, between the values of observed quantities or phenomena (called variables).
Given that, Alex constructs a scatter plot. He realizes that he needs to add one more point,
As we know If one point of a scatter plot is farther from the regression line than some other point, then the scatter plot has at least one outlier. If a number of points are the same farthest distance from the regression line, then all these points are outliers.
Here, When we will plot each of the points, and we will find that (14, 2) is the furthest away from the scatter
Hence, (14,2) is an outlier of the constructed scatter plot.
Learn more about scatter plot, click;
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Which expression is equivalent to
(5^-2)(5^-1)?
Answer:
5^-2.5^-1
5^-2-1
5^-3
1/125
can somelne help me
Answer:
2
Step-by-step explanation:
Answer:
9×(10-5)-31)÷7
9×5-31÷7
45-31÷7
14÷7
2
When a ball is thrown into the air, it falls back to the round. What
causes this to happen?
A.The round shape of the ball.
B.The way the ball is thrown.
C.The force of air against the ball.
D.The force of gravity on the ball.
Answer:
force of gravity on the ball
Step-by-step explanation:
when you throw something up it will come down
Mr Martin has 120 CDs. The ratio of indie CDs to dance CDs is 5:7. How many of each type of CDs does he have.
Answer
Martin has 50 indie CDs and 70 dance CDs
Step-by-step explanation:
5+7=12 120/12 =10 10x5=50 and 10x7=70 So Martin has 50 indie cds and 70 dance CDs
PLS HELP!
Match each division expression to its quotient.
Answer:
3 3/7 divided by 1 1/7 = 3
16/(-8) = -2
2 2/5 divided by 4/5 = -3
-12.2/(-6.1) = 2
Step-by-step explanation:
Turn the mixed numbers into improper fractions and work from there. Then, make sure to find the reciprocal of the second fraction/number. For example,
3 3/7 = 24/7
1 1/7 = 8/7
24/7 (7/8) = 3
Hope this helped, but if you need more help then make sure to communicate with your teacher. This will help you out in the future.
Find y
Round to the nearest tenth:
х
27°
350 ft
Answer:
178.3ft
Step-by-step explanation:
still using the same formula
What is the surface area of the right cone below?
Answer:
54 is anwer.
please mark me brainliest and follow me my friend.
because 54 is correct answer.
The value of surface area of the right cone is,
⇒ 54π units²
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
Radius of cone = 3 units
Slant height = 15 units
Now, The formula for the total surface area of a right cone is,
T. S. A = πrl + πr²
Hence, We get;
The value of surface area of the right cone is,
⇒ π x 3 x 15 + π x 3²
⇒ 45π + 9π
⇒ 54π units²
Thus, The value of surface area of the right cone is,
⇒ 54π units²
Learn more about the multiplication visit:
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a choir director made a histogram showing the ages of the members of the choir. which statement about the data in the histogram must be sure?
answer options are in the picture!!
Answer:
the Choir has total of 100 members must be correct answer
more than half......................... can't be right cause there r exactly 50 members between 43-73,
second one can't be right cause no data was given no. of men and women
there r 35 members exactly who r less than 32 years so it's wrong.
hope it helps.
Answer:
the Choir has total of 100 members
Step-by-step explanation:
What is 0^-4? What is 0^0? Please help me.
Answer:
A. Infity and B. is 1
Step-by-step explanation:
Help Asap 39 points pic below
!!Pleas help me!! ASAP!! I will give you BRAINLYEST!!
A 25 - cent coin has a circumference of about 76 milimeters. Which
statement about the coin is true?
A. The diameter is 2 times the cricumference
B. The ratio of the circumference to the diameter is about 3.14
C. The diameter is about 3.14(76) milimeters
D. The diameter divided by the circumference is about 3.14
Make sure to explain your reasoning.
!!pls help me!! :(
Answer:
Step-by-step explanation:
the circumference is
C=2*r*3.14=3.14*d
the below choices are the only ones that are valid
c/3.14=d
C/d=3.14
the answer B
I don’t understand help PLZZZ
what does mujer culona
mean
1.) At a restaurant, your bill has a food total of $33.50. Find the amount of a 16% tip on the food total.
I will give brainlist
can you help stuck on this question for a while
Answer:
Option B
Step-by-step explanation:
Length of the rectangular sand box is given by the function,
F(x) = 3x³ + 6x - 2
Width of the sand box is represented by the function,
W(x) = 2x² - 4
Area function for the sand box will be,
Area of a rectangle = Length × Width
F(x) × W(x) = (3x³ + 6x - 2)(2x² - 4)
= 2x²(3x³ + 6x - 2) - 4(3x³ + 6x - 2)
= 6x⁵+ 12x³ - 4x²- 12x³- 24x + 8
= 6x⁵- 4x²- 24x + 8
Therefore, Area function will be represented by a polynomial degree of 5.
Option B will be the answer.
Two sides of a triangle can be represented by the expressions 3x+8 and 2x2-4x+5.If the perimeter of the triangle is 4x2+2x-10, what expression can be used to represent the third side?
Answer:
s = 2x²+3x-23
Step-by-step explanation:
Given that,
First side of a triangle = 3x+8
Second side of a triangle = 2x²-4x+5
The perimeter of the triangle = 4x²+2x-10
We need to find the expression for the third side. Let the third side b s.
Perimeter = Sum of all sides
4x²+2x-10 = 3x+8 + 2x²-4x+5 +s
4x²+2x-10 = 2x²-x+13+s
s = 4x²+2x-10- (2x²-x+13)
= 2x²+3x-23
So, the third side will be 2x²+3x-23.
Points out of
9.00
The cost of manufactured goods is rising at the rate of inflation, or at about 2.3%. Suppose an item costs $12 today. How much will it cost five years
from now due to inflation? Round the answer to the hundredth
Help me out please an thank you
what is the height of the square pyramid
Answer:
16 is the answer cuz it have base of 12 so the height will be bigger than base.
Call the actor spam her she blocked me 3053035819 call her name lauren.
Answer:
so, its 2.34 to the square root of 163
Step-by-step explanation:
you need to find the angle congruent to side 'actor'
times that by your credit card and divide by lauren
hope i get brainliest!!