Answer:
see explanation
Step-by-step explanation:
5x + 3y = 6 → (1)
- 4x - 3y = - 3 → (2)
the most efficient method here would be elimination.
add (1) and (2) term by term to eliminate y
x + 0 = 3
x = 3
substitute x = 3 into either of the 2 equations and solve for y
substituting into (1)
5(3) + 3y = 6
15 + 3y = 6 ( subtract 15 from both sides )
3y = - 9 ( divide both sides by 3 )
y = - 3
solution is (3, - 3 )
Answer:
[tex](3,-3)[/tex]
Step-by-step explanation:
[tex]5x + 3y = 6[/tex]
The most efficient method for this equation is elimination.
[tex]x + 0 = 3[/tex]
[tex]5(3) + 3y = 6[/tex]
Substitute x = 3 into any of the equation and solve for y.
[tex]5(3) + 3y = 6[/tex]
[tex]15 + 3y = 6[/tex]
[tex]-15 -15[/tex]
[tex]3y = - 9[/tex]
[tex]\frac{3y}{3}=\frac{-9}{3}[/tex]
[tex]y=-3[/tex]
[tex](3,-3)[/tex]
What is the slope of line that passes through the points ( 2 , 1 )( 10 , 9 )
Answer:
1.
Step-by-step explanation:
the slope can be calculated as
[tex]slope=\frac{y_2-y_1}{x_2-x_1};[/tex]
according to the formula above:
slope=(9-1)/(10-2)=1.
3. a. Prove that A(1,1), B(4,4), C(6,2) are the vertices of a
right triangle using slopes.
Answer:
Step-by-step explanation:
One of the angles of a regular octagon is 135°. What is the sum of the measures of all the interior angles of this octagon?
A. 720°
B. 1056°
C. 1080°
D. 1584°
Answer: C
Step-by-step explanation:
Since an octagon has 8 interior angles, the sum of the measures is 135(8)=1080.
simplify (5^3)^5 please??
Step-by-step explanation:
please mark me as brainlist please
Question 2 of 5
A cylinder has a diameter of 10 inches and a height of 20 inches. What is the
volume of the cylinder?
А. 1000п
B. 50017
C. 200017
O D. 2001
SUBMIT
Answer
B. 500 pi
Step-by-step explanation:
I NEED THIS DONE IN 5 MIN SOMEONE HELP
Answer:
4
Step-by-step explanation:
How many times does 15 go into 30
Answer:
2
Step-by-step explanation:
subtract 15 from 30 till u have 0 and count how many times u subtracted 15 from 30
Answer:
2
Step-by-step explanation:
30÷15=2
so 15 goes into 30 2times
What is the overlap of Data Set 1 and Data Set 2?
high
moderate
low
none
Two line plots with the same scale and interval, from fifty two to sixty two, with tick marks every one unit. The plots are stacked vertically for comparison. Each plot has eleven data values. Values appear as x marks above the line. Upper plot data values are one x mark above fifty three, one x mark above fifty four, one x mark above fifty five, two x marks above fifty six, three x marks above fifty seven, two x marks above fifty eight, and one x mark above sixty. Lower plot data values are one x mark above fifty four, one x mark above fifty five, two x marks above fifty six, three x marks above fifty seven, two x marks above fifty eight, one x mark above fifty nine and one x mark above sixty.
Answer:
Well my answer is high data set I took the test and got 100%
Step-by-step explanation:
Answer:
High
Step-by-step explanation: I took the test.
In the figure shown, MR = 45 units, and RQ = 15 units. What is the length of PR?
Answer pleaseee!!!!
Find the value of x.
Can someone pls explain me how to do this pls!!!
Answer:
A, C, E
Step-by-step explanation:
You would want to graph the points an if the line goes through them then that would be the answer
There are 65 seats on a train. 60% of the seats are empty. How many empty seats are there
on the train?
Answer:
39 seats are empty
Step-by-step explanation:
60% of 65 is 39
2. Simplify each expression into its standard
(x - 3)(6x - 2)
Answer: 6x² - 20x + 6
Step-by-step explanation:
x(6x - 2) -3(6x - 2)
= 6x² - 2x - 18x + 6
= 6x² - 20x + 6
QUICK PLEASE ANSWER
find the product of 7/8×9/10. Then write another product with the same answer
Answer:
63/80 and 7/4 * 9/20
Step-by-step explanation:
7/8 * 9/10 = 63/80
7/4 * 9/20
Normal body temperature is 98.6 degrees Fahrenheit. When Tyler had a fever, his temperature went up to 102.2 degrees. By how much did Tyler's temperature increase?
Suppose the population of a city increasing at a rate of 6. 5% per year. The current population is 35,000. Predict what the population will be in 32 years.
Answer:
262,576.28
Step-by-step explanation:
35,000(1+.065)^32
the hot air popcorn maker used at the movies theater produces 14 cups of popcorn in 2.5 minutes. what is the unit rate per minute?
Find the smallest part when £80 is
shared in the ratio 7:3
Answer:
£24
Step-by-step explanation:
= 3/(7+3) × £80
= 3/10 × £80
= £24
A snowboarding competition site is using a new design for the parallel giant slalom. The designer of the slalom is investigating whether there is a difference in the mean times taken to complete a run for men and women competitors. As part of the investigation, independent random samples of men and women who will use the slalom run are selected and their times to complete a run are recorded. Which of the following is the appropriate inference procedure by which the designer can estimate the difference in the mean completion times for men and women?
i. A one-sample I-Interval for a sample mean e-sample interval for a population mean
ii. A matched para tantervil for a meen difference
iii. A two-sample -interval for a difference between population means
iv. A two-sample t-interval for a difference between sample means
Considering that we have two samples, and the standard deviation for each sample, the correct test is given by:
iii. A two-sample -interval for a difference between population means.
When to use a t-test and a z-test?If we have the standard deviation for the sample, the t-test is used.If we have the standard deviation for the population, a z-test is used.Here, there are two samples, and we will investigate their difference. The information taken from the sample is expanded to the population, and since we have the standard deviation for each sample, a t-test is used, hence the correct option is given by:
iii. A two-sample -interval for a difference between population means.
More can be learned about hypothesis tests at https://brainly.com/question/26454209
An art gallery owns a painting that is valued at $37,000. The gallery owner estimates that its value will increase by 10% every year. If the owner is correct, then how much will it be worth in 4 years?
Answer: $51,800
Step-by-step explanation:
if the value increases by 10% every year, we can represent this as a linear function, in the form:
y = mx + b
y = [0.1(37,000)]x + 37,000
0.1 x 37000 represents the 10% increase per year, and x represents the number of years that have passed. we add 37,000 at the end to represent the original cost of the painting.
we can simplify the 0.1(37,000) to 3700, which is how much the painting's cost should increase per year. so our equation is:
y = 3,700x + 37,000
So, in 4 years, the painting will be worth:
y = 3,700(4) + 37,000
14,800 + 37,000
$51,800
The price of milk increased by 8%. If the original price is R10,84 what is the new price?
Answer:R11.718
R10.85*108/100=R11.718
Step-by-step explanation:
deposited $6,000 into a savings account 3 years ago. The simple interest rate is 2%. How much money did earn in interest?
Answer:
$360
Step-by-step explanation:
Answer: 8,000
Have a blessed day.
high speed train travels at a speed of 200 km/h if the train sets off from station A at 12 24 and reaches station B AT 14 12 find the distance in between two stations giving your answer in meters.
Answer: 360000m
Step-by-step explanation:
Okay, so since we know that this train’s speed is 200km/h, let’s find the time difference between 12 24 and 14 12.
14 12 - 2hrs = 12 12
12 12 + 12min = 12 24
2hrs -12min = 1hr 48 min
1hr 48 min also equals to 1.8hrs in decimals. So:
200km x 1.8 = 360km
Now we have to find the answer in meters. Since 1km is equal to 1000m,
That means 360km equals 360000m.
Therefore 360000m is the answer
Zoe and Jamie share some money in the ratio 4:3 Zoe gets £30 how much does Jamie get
Answer:
22.5
Step-by-step explanation:
Zoe gets 4 parts out of 7. 30/4 is 7.5.
So 7.5 is one part.
3 parts is 7.5x3=22.5
what is the area, please help me!
Answer:
30ft2. (C.)
I did this question once.
Sorry for my Lack of explanation.-
Answer:
C
Step-by-step explanation:
Draw a line to make 2 separate shapes and find the area of each them then add the 2 areas together
18+12=30
This figure represents a compartment in a container for storing sewing supplies. Another compartment is identical except that it is 3 centimeters taller. What is the difference in volume of the two compartments? Enter your answer in the box.
The difference in volume of the two compartments is 210 cm³
What is volume?
Volume is the amount of space occupied by a three dimensional shape or figure.
The volume of the compartment = area of base * height
Area of base (trapezoid) = (1/2)(sum of parallel side)(height) = (1/2) * (15 + 5) * (7) = 70 cm²
Volume of compartment = 70 * 8 = 560 cm³
For the new compartment, height = 8 + 3 = 11 cm, hence:
Volume of new compartment = 70 * 11 = 770 cm³
Difference in volume = 770 cm³ - 560 cm³ = 210 cm³
The difference in volume of the two compartments is 210 cm³
Find out more on volume at: https://brainly.com/question/12410983
Answer: 210 because I got it correct on the k12.
Step-by-step explanation:
A football stadium sells regular and box seating. There are twelve times as many
regular seats as there are box seats. The total capacity of the stadium is 10,413. How
many box seats are in the stadium? How many regular seats?
Answer:
There are 801 box seats and 9612 regular seats.
explanation:
Let the number of box seats be x,
Then the regular seats is 12x
The sum of seats equals to 10,413
Solve:
12x + x ➙ 10,413
13x ➙ 10413
x ➙ 801
There are 801 box seats.
Find for regular seats:
➙ 12(x)
➙ 12(801)
➙ 9612
There are 9612 regular seats.
The perimeter of a square is equal to the perimeter of rectangle of length = 16 cm and breadth=4 cm. What is the perimeter and side of the square?
Which expression is equivalent to 20c - 8d?
1. 2 (10c +4d)
2. 4 (5c - 8d)
3. 4 (5c - 2d)
4. c (20 - 8d)
PLEASE HELP ME!!
Answer:
4 (5c - 2d)
Step-by-step explanation:
I am going to show you how its 4 (5c - 2d) below.We factorise .
4×5c - 4×2d
20c -8d
Hope it helped.
Aliyyah.