Answer:
(2, 5)
Step-by-step explanation:
Given the systems of equation
y = 4x - 3
y = -2x+9
Since both are y values, we will equate the right hand side of the equations
4x -3 = -2x+9
Collect the like terms
4x+2x = 9+3
6x = 12
x = 12/6
x = 2
Substitute x = 2 into any of the equation.
Using equation1;
y = 4x - 3
y = 4(2) - 3
y = 8 - 3
y = 5
Hence the solution to the system of equation is (2, 5)
How many ways are there to add four positive odd numbers to get a sum of 22?
there are 18 ways to add four positive numbers to get 22
Can someone please help ?!?
Answer:
the answer would be D
Step-by-step explanation:
sec = 1/cos
if $20.00 is for 12.25kg of peas ...what weight of peas can i get for $4.00
evaluate 24. 5 PLS AND THANK YOU!!!
Answer:
80
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
2⁴ · 5
Step 2: Evaluate
Exponents: 16 · 5Multiplication: 80Will someone help me with this??
Answer:
C) -1/4x+2=2x-7
Step-by-step explanation:
-1/4(4)+2=2(4)-7
-1+2=8-7
1=1
3 coins are flipped. let E be the event that at least 2 coins are heads. let F be the event that no heads are flipped. are E and F mutually exclusive? are they independent? Explain
Answer: Yes, they are mutually exclusive. You cannot have 2+ heads and 0 heads at the same time. They are not independent. The result of 2+ heads nullifies the chance that 0 heads are flipped!
i need help with graphing
Answer:
Pls mark brainleist
Step-by-step explanation:
Graphing formula: y = mx + b
y and x always stay in the equation
m is the slope
and b is the y intercept
help plz The total cost of a shirt and a jacket was $99.34. If the price of the shirt was $7.76 less than the jacket, what was the price of the shirt? Express your answer as a simplified fraction or a decimal rounded to two places.
Answer: Shirt costs $45.79
Step-by-step explanation:
jacket- x
shirt (x-7.76)
x+x-7.76=99.34
2x - 7.76 = 99.34
2x = 107.10
x=53.55
Jacket costs 53.55 and Shirt costs 53.55-7.76= 45.79
The table shows the number of hours spent practicing
singing each week in three samples of 10 randomly
selected chorus members.
Time spent practicing singing each week (hours)
Sample 1 12 13 11 8 9 7 4
8 9 10 Mean = 9.1
Sample 2 7 12 11 8 9 8 12 8 9 10 Mean = 9.4
Sample 3 11 9 8 12 8 10 7 8 7 9 Mean = 8.9
Which statement is most accurate based on the data?
A. A prediction based on the data is reliable, because the means of
the samples are close together.
OB. A prediction based on the data is reliable, because each sample
has 10 data points.
O C. A prediction based on the data is not completely reliable, because
the means are not the same.
D. A ediction based on the data is not completely reliable, because
the means of samples 1 and 2 are greater than 9 and the mean of
sample 3 is less than 9.
PREVIOUS
Answer:
A prediction based on the data is reliable, because the means of the samples are close together.
Step-by-step explanation:
Test approved
The most accurate statement is A. A prediction based on the data is reliable, because the means of the samples are close together.
What is Mean?Mean of a set of data is defined as the average of all the values. It gives the exact middle point of the data set.
Given three data sets.
All the samples have 10 data points.
Number of data points = 10
Mean of sample 1 = 9.1
Mean of sample 2 = 9.4
Mean of sample 3 = 8.9
We can see that the mean of the three samples is so close to each other.
So the data is reliable.
Hence the option is A.
Learn more about Reliability of Data here :
https://brainly.com/question/19901862
#SPJ7
What is the the comparison number for 30and 60
Answer:
2 i think
Step-by-step explanation:
X^2+9x+7=y standard to vertex form
Answer:
y = (x + 4.5)² - 13.25
Step-by-step explanation:
y = x² + 9x + 7
We need to get a perfectly squared binomial as part of the right side.
Take the '9x' term, divide it in half, square it, add and also subtract it on the right side, as shown below. That would be (4.5)² = 20.25 added and subtracted.
y = x² + 9x + 7
y = x² + 9x + 20.25 + 7 - 20.25
y = (x² + 9x + 20.25) - 13.25
y = (x + 4.5)² - 13.25
y = (x + 4.5)² - 13.25
Vertex Form is y = a(x-h)² + k, where the parabola vertex is (h, k)
So if you wrote this as y = 1(x - [-4.5] )² + (-13.25), we would see that a = 1, and h = -4.5 and k = -13.25.
Vertex = (-4.5, -13.25)
I verified on a graphing calculator that this is indeed the vertex of the parabola.
Write the next three terms of the geometric sequence 81, -27, 9, -3,...
1, -1/3, 1/9
it is divided by negative 3 or -3
To find that you need to divide the the first term with the next term
81÷-27=-3
Olga saves $15 from every paycheck to save up for a new game system that cost $399. Currently, she has $360 saved. Ignoring any taxes on the purchase, how many more paychecks does she have until she has enough money saved to buy the game system?
Answer:
3
Step-by-step explanation:
399-360=39
1. A rectangular room measures 12 feet by 20 feet. It is going to be covered with carpeting that sells for $8.35 per square foot.
a. What is the area of the room in square feet?
b. How much would it cost to carpet the floor?
Answer:
a). 240sqft b). $2004 (+ labor I guess)
Step-by-step explanation:
the room is rectangular, so it's area is the product of the dimensions
12feet * 20feet = 240sqft
The cost is $8.35 per sqft, so we get
240sqft * $8.35/sqft = $2004
Answer:
A: 240
B: 1,980
Step-by-step explanation:
Finding the area of a 2d rectangle WxL, So it's 12x20 is 240.
I did 8.35 times the square footage, 240, and gotten 1,980.
Help me out with the correct answer!!!!!
Answer:
yellow i think
Step-by-step explanation:
Point C is located 8 inches from point A and 6 inches from point B. Points A and B are 2 inches apart.
Which statement is true?
A The points cannot be connected to form a triangle.
B The points can be connected to form exactly one triangle.
C The points can be connected to form exactly two triangles.
D The points can be connected to form more than two triangles.
Answer:
B
Step-by-step explanation:
Please helpppp
Thank you
Answer:
B
Step-by-step explanation:
Please help wrong/random answers will be reported.
Answer:
21, 1701
Step-by-step explanation:
multiply by 3 :)
can 24 be the output
Answer:
For what
Step-by-step explanation:
For what the output has to be 24
Answer:
yes 24 output
Step-by-step explanation:
hahahahahhaa
Estimate the sum of 46 and 32 by rounding to the nearest ten,
A. 80
0
B. 90
C. 75
0
D. 70
0
E. 85
Evaluate (2/5) to the 2nd power
Answer:
.08
Step-by-step explanation: hope you get it right please give brainiest
have a good day
Answer:
4/25
Step-by-step explanation:
Please give me the answer please
Answer:
1/2
Step-by-step explanation:
Enter the unknown value that makes this statement true:
25% of is 30.
Answer:
Ans is 120
Step-by-step explanation:
25 x 4 is a 100
therefore multiply 4 by 30 to find the 100%
or the ? value that makes the statement true
Ans is 120
Answer:
25% of 120 is 30
Step-by-step explanation:
25% = 0.25
0.25 y = 30
y= 30/0.25
y= 120
determine whether or not it is a function
At the zoo, there are 75 exotic birds of the
75 birds, 32% of them are male. How many of the
75 birds are male?
A. 8
B. 16
C. 24
D. 32
Answer:
C. 24.
Step-by-step explanation:
Make 32% into a decimal so you can put it into an equation. 32% as a decimal is .32. 75 x .32 is 24. 24 birds are male.
Solve for xxx.
Your answer must be simplified.
x+5 ≤−4
Answer:
-9
Step-by-step explanation:
x+5 less than or equal -4
x lessthan orcequal -4-5
x less than or equal -9
cellus
Corresponding Angles are congruent.
Which angle corresponds with 2?
446 4342
4845 44141
< [?]
Enter
Answer:
<6
Step-by-step explanation:
Corresponding angles have the same matching corner.
<6 has the same matching corner as <2. <6 and <2 are congruent.
Therefore, it can be concluded that <6 corresponds to <2.
After filling a gas tank the odometer read 27,8295After the next filling it read 28,1760. It took 17.5 gal to fill the tank How many miles per gallon did the driver get?
Answer:
198 mpg
Step-by-step explanation
28,1760-27,8295 = 3465 miles
3465miles/17.5gal = 198 mpg
Question 10 of 12
What is the solution to x + 8 = 19?
A. x = 11
E
B. x = 8
C. x= 16
D. x = 27
SUBMIT
Answer:
x = 11
Step-by-step explanation:
x + 8 = 19 subtract both sides by 8
x = 11
Hey there!
x + 8 = 19
SUBTRACT 8 to BOTH SIDES
x + 8 - 8 = 19 - 8
CANCEL out: 8 - 8 because it give you 0
KEEP: 19 - 8 because it give you the x-value
NEW EQUATION: x = 19 - 8
SIMPLIFY IT!
x = 11
Therefore, your answer is:
x = 11 (Option A)
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
The length of a rectangle is three feet less than twice its width. If x represents the width of the rectangle, in feet, write inequality represents the area of the rectangle that is at most 30 square feet.
Answer:
x>30.meaning that the x is greater than 30