Use substitution to solve the
following system of equations.
9x + 5y = 32 AND y = -3x + 4
Answer:
x = -2
y = 10
Step-by-step explanation:
Since they already gave y as -3x +4, you will then have to substitute that amount into the formula
9x + 5y = 32
By doing that you get
9x +5(-3x+4) = 32
9x -15x +20 = 32
Then, you ill take 20 to the other side to subtract 32, which will get you
-6x = 12
Then, you will get x = -2
Then substitute that for the equation
y = -3x + 4
You will get
y = -3(-2) + 4,
You will get y as 10
SO then your final answer is x = -2, y = 10
YALL HAVE BEEN GETTING THESE WRONG LATELY SO PLZ HELP
Answer:
m=-4/3
Step-by-step explanation:
The equation for slope is y2-y1/x2-x1
m=(y2-y1)/(x2-x1)
m=(12--4)/(1-13)
m=16/-12
m=-4/3
What is the multiplier? *
х y
0 0.01
1 0.005
2 0.0025
3 0.00125
options:
a) 2
b) 5
c) 1/5
d) 1/2
RU and TU are tangent to OS. Find mZR.
A. 63°
B. 54°
C. 126°
D. There is not enough information to determine
Answer:
A. 63
Step-by-step explanation:
EDGU 2020
What is the value of x in the figure?
A. 40 degrees
B. 70 degrees
C. 80 degrees
D. 120 degrees
E. 150 degrees
Answer:
E
Step-by-step explanation:
Kristen wrote a number that is equal to three times the difference of 65 and 48. Which
expression represents the number that Kristen wrote?
3 x 65 - 48
3 x 48 - 65
3 x(65 – 48)
(3 x 65) - 48
Help me
Answer:
3 x(65 – 48)
Step-by-step explanation:
n = 3(65-48)
Which is the answer. A B C D?
Given the median QR and trapezoid MOPN, what is the value of x?
5x - 7
P
27
Q
R
6x + 6
N
O A. 6
O B. 18
O C. 2
O D. 5
O E. 7
o
F. Cannot be determined
Answer:
D. 5
Step-by-step explanation:
Based on the midsegment theorem of a trapezoid, thus:
QR = ½(OP + MN)
Substitute
27 = ½((5x - 7) + (6x + 6))
27 = ½(5x - 7 + 6x + 6)
Add like terms
27 = ½(11x - 1)
Multiply both sides by 2
2*27 = 11x - 1
54 = 11x - 1
54 + 1 = 11x
55 = 11x
55/11 = x
5 = x
x = 5
Complete the sentence?
Answer:
2
Step-by-step explanation:
Compare the values of the digit 8 in the number 6,084 and in the number 9,821
Answer:
it's 10 time greater
Step-by-step explanation:
in 6,084 the number 8 is 80
but in 9,821 the number 8 is 10 times greater 6,084
A child's ticket to a concert costs x and an adult ticket cost four times as much as a child's ticket The difference between Mrs. Royal ticket and her
child's tickets is $600.
(a) Write an equation to show this information.
(b) Solve your equation and write down the cost of an adult ticket.
Answer:
Mrs.Royal's ticket costs $800.
Step-by-step explanation:
Child's Ticket= x
Adult's Ticket= 4x
4x-x=600
3x=600
x=200
200*4=800
Dr.dre is a dentist. He needs to report on the average number of cavities that his patients have 1,0,5,6,4
Answer:3.2
Step-by-step explanation: add them all up and divide by the sample size.
Answer:
The average number of cavities is 3.2
Step-by-step explanation:
To find the answer we will put them in order from least to greatest.
0, 1, 4, 5, 6. Now add all the numbers up and we get 16. Because we are trying to find the average number, we will count up how many numbers there are. Since their are 5 numbers total, we divide 16 by 5 and we get 3.2. Therefore, 3.2 is our answer.
According to the National Weather Service, the average monthly high temperature in the Dallas/Fort Worth, Texas area from the years of 2006-2008 is given by the following table:
Month
Average Maximum Monthly Temperature
Jan
48.1
Feb
50.9
Mar
62.4
Apr
67.0
May
76.5
Jun
83.9
Jul
86.8
Aug
88.1
Sep
79.2
Oct
69.9
Nov
59.5
Dec
49.6
Plot the data on a scatter plot. Produce a sine regression model for the data. Round the values for a, b, c, and d to the nearest 0.001. Using the sine regression model predict what the temperature would be given y(30).
a.
58.4 degrees
b.
62.3 degrees
c.
76.8 degrees
d.
86.0 degrees
Please select the best answer from the choices provided
The sine regression model is [tex]y =20.077 \sin(0.500x- 1.959) + 67.577[/tex], and the value of y(30) is 76.8 degrees
What is a regression model?A regression model is used to determine the association and correlation between two variables
Using a graphing calculator, the sine regression model of the dataset is:
[tex]y =20.077 \sin(0.500x- 1.959) + 67.577[/tex]
To calculate y(30), we substitute 30 for x in the equation.
So, we have:
[tex]y =20.077 \sin(0.500 * 30- 1.959) + 67.577[/tex]
Evaluate the product
[tex]y =20.077 \sin(15- 1.959) + 67.577[/tex]
Evaluate the difference
[tex]y =20.077 \sin(13.041) + 67.577[/tex]
Evaluate the sine value
[tex]y =20.077 *0.4570+ 67.577[/tex]
Evaluate the product
[tex]y =9.1752+ 67.577[/tex]
Evaluate the sum
[tex]y =76.7522[/tex]
Approximate
[tex]y \approx 76.8[/tex]
Hence, the sine regression model is [tex]y =20.077 \sin(0.500x- 1.959) + 67.577[/tex], and the value of y(30) is 76.8 degrees
Read more about regression models at:
https://brainly.com/question/17844286
What is the probability a customer ordered a small, given that he or she ordered a hot drink?
Answer:
7% is the answer
Step-by-step explanation:
Find m angle ADB !!!!!
Answer:
[tex]<ADB=9[/tex]×[tex]5+4[/tex][tex]=49[/tex]
Step-by-step explanation:
[tex]<(13x-16)=<(9n+4)\\\\13x-9x=4+16\\\\4x=20\\\\x=\frac{20}{4} \\\\x=5\\\\<ADB=9*5+4=49[/tex]
hope it helps....
What percent of 280 is 133?
Answer:
47.5
hope this helped
Answer:
47.5
Step-by-step explanation:
all about dividing rational number, please help!
Answer: multiple the fractions
Step-by-step explanation:
1, 43/8 ÷3/2 when we write it as multiplication it is going to be 43/8*2/3
and the solution is
=86/24
simplify it
the result is
=43/12
2, 32/3÷4/3
then 32/3*3/4
=8
3, 51/4÷5/2
then 51/4*2/5
=51/10
Michael deposited $2000 into a simple interest savings account. In eight years,
he has a total of $2520 in his account. What interest rate did the bank give
Michael when he opened his account?
a. 2.5%
b. 3.75%
C. 3.25%
d. 2.25%
Answer:
3.25%
Step-by-step explanation:
2520/2000=1.26
1.26-1=.26
.26/8=.0325
.0325*100=3.25%
Akela rode her bike 48 km for 3 hours, she rested for 1/2 an hour and then rode another 24 km for 1 hours. What was her average speed?
Answer:
18km
Step-by-step explanation:
speed=distance\time taken that's the formula I've used.I hope you'll understand it.
Combine -4p + 2p + 3
Answer:
-2p + 3
Step-by-step explanation:
Answer:
= -2p+3
Step-by-step explanation:
combine like terms, which gives you -2p (-4p+2p). since the three isn't alike to the other term, you cant add them.
i hope this helps :)
Find the area. Show your work.
Answer:
92 units^2
Explanation:
Assuming both sides are congruent.
An olive press produces 6 2/3 gallons of oil in 32 minutes. At this rate, how many gallons of olive oil will be produced in 1 hour?
A. 3.6 gallons
B. 12.5 gallons
C. 8.8 gallons
D. 6.2 gallons
PLEASE HELP ITS A TEST!!!!
In problem 8-94 you found that if you are given three lengths to build the sides of a triangle, then if a triangle can be formed, all the triangles you could make were the same. Suppose you start with two triangles knowing that their three pairs of corresponding sides are the same, as shown in the diagram below.
Triangle, A B C, where side, A C, has one hatch mark, side, C B, has 2 hatch marks, and side, A B, has 3 hatch marks.
Triangle, P Q R, where side, R P, has one hatch mark, side, P Q, has 2 hatch marks, and side, R Q, has 3 hatch marks.
Examine the diagram. What do you think the markings indicate? Name the pairs of corresponding sides.
What can you say about the two triangles and why? What can you say about their angles? Why?
Help math is harddddddddd
Answer:
Then show the question so we can answer
Can someone explain this plss
will mark branliest.
tyyyy <3
Answer:
H and J are not true
Step-by-step explanation:
H) 12/65 ≠ 55/300
J) 11/65 ≠ 60/400
Can someone help Solve these 2 questions for me? It's about Slope Intercept Forms.
Answer:
9.) The slope is 3 and the y-intercept is -5
10.) y = 0.25x -11
Hope this helped!
Stay safe! <3
Turn it into a mixed number.
HELP PLZ BRAINLIEST
Answer:
3.5 x 4= 14
Step-by-step explanation:
7/2 x 4
Sofia orders a drink at a coffee shop. She can order water (W), coffee (C), or tea (U). If she orders coffee or tea, she can have milk (M), sugar
(S), both (B) or neither (N) added to her drink.
Which list shows all the possible drink orders Sofia can make?
O AW.CT
B. W. CT, M, S, BN
O c W. CTM, TS, TB, TN
O D. W, CM, CS, CB, CN, T
O EW, CM, CS, CB, CN,TM, TS, TB, TN
Answer:
c
Step-by-step explanation:
Find the area of the circle.
Answer:
have of 18 is 9
9^2 is 81
81 x 3.14(pi) = 254.34
Formula of area of a circle:
half of diameter or given radius squared
Times
3.14(pi) or whatever you use for pi.
A computer programmer worked for 5 hours and earned $25, which is a rate of $_ Per hour
Answer:
They earned 5 dollars per hour
Step-by-step explanation:
Take the amount earned and divide by the number of hours
25/5
5
They earned 5 dollars per hour