Step-by-step explanation:
I'm not sure but,here you go
2z = 10
z = 10 ÷ 2 = 5
x + 2y + z = 9
x + y + 3z = 13
____________
x + 2y + 5 = 9
x + y + 3(5) = 13
_____________
x + 2y = 9 - 5
x + y = 13 - 15
___________
x + 2y = 4
x + y = -2 (×-1)
___________
x + 2y = 4
-x - y = 2
___________
y = 6
x = -2y - z + 9 = -2(6) - 5 + 9 = -12 - 5 + 9 = -8
If you wanna check,
x + y +3z = 13
(-8) + 6 + 3(5) = 13
x = -8 , y = 6 , z = 5
I'm not very sure but here you go,I might be wrong^^
What is the equation of the line that passes through the point (-3, 6) and has a
slope of -2?
Answer:
y = -2x
Step-by-step explanation:
y = mx + c
Substitute the value,
6 = (-2)(-3) + c
c = 0
Thus, the equation is y = -2x
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 10 17 6 33 Female 11 15 13 39 Total 21 32 19 72 If one student is chosen at random, Find the probability that the student was male AND got a "C". Submit Question Question 14
Answer:
1 / 12
Step-by-step explanation:
Given the following data:
_______A___ B ___C ___Total
Male__ 10 __ 17 ___6___ 33
Female_ 11__ 15___ 13___ 39
Total___21__ 32__ 19___ 72
Find the probability that the student was male AND got a "C"
Number of males who got C = 6
Total number of student students = 72
P(student was male and got C) = (number of males who got C / total number of students)
= 6 / 72
= 1 / 12
Find the coordinates of A (-2,3) after a rotation of 90 degrees
(-3,-2) are the new coordinates
PLEASE HELP ME UNDERSTAND THIS MORE!!!!!!!!!
You would first use addition and then multiplication
On Monday, Ken spent half of his money on a new game. The next day he earned $12 mowing lawns. He now has $32. How much money did Ken have before he bought the game?
Answer:
He had $20 before he bought the game, you can use subtraction to find out how much Ken had
$32 - $12 = $20
-6 < x-12/4 < -2
explain how u got the answer plz
Answer:
2<X<2/3
Step-by-step explanation:
-6<x-3<-2
-6/-3<x-3/-3<-2/-3
2<X<2/3
2/3 - 1/5
Easy 10 points!
Answer: 0.46666666666
Step-by-step explanation: Hopefully this helps!
4. Divide £2600 in the ratio 1:4:8
Answer:
total money = 2600
Divide into 2
2600/2 = 1300
divide into 3
2600/3 = 866.6
divide into 4
2600/4 = 650
Step-by-step explanation:
Joanne wants to buy a skirt for $25.00. If she has a coupon for $5 off a clothing
purchase, what will be her percent of savings?
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!URGENT
Answer: 16
Step-by-step explanation: 4x4=16
Solve for y in terms of r,w, and y
Answer:
Step-by-step explanations:
Which number has two lines of symmetry?
101
619
33
18
33 in middle - and in between I
Answer:
101 is the correcct answer
Step-by-step explanation;
Answered 33 and it was wrong
HELP AHHH
PLEASE AND THANK YOU
Answer: D
Step-by-step explanation:
Counting from 4 to -4 is 8 units.
the standard form of 5000
Answer:
five thousand
Step-by-step explanation:
What is the value of n?
The sum of thee consecutive ODD integers is -21
CAN SOMEONE PLEASE HELP ME , I’ll mark brainlist!!!!!
Answer:
i think yes
Step-by-step explanation:
youll have a 50% chance of getting it right
-9 is greater than
a. -10
b. -7
c. -6
d. -9
e. 0
Answer:
-10
Step-by-step explanation:
On the number line -9 appear before -10. Thw futher the number, the smaller it gets
15 points and a brainliest answer this!
Answer: the correct answer i got was y= -9. Plz mark this brainlest
Step-by-step explanation:
At the toy store, 4 toy cars cost $3.48. How much does it cost to buy 15 toy cars?
A. $11.55
B. $13.05
C. $12.30
D. $14.55
I think u can add 3.48 15 times
Answer: b
Step hdhdjsbshdjs (3.48/4)15
What are the coordinates of point p?who ever gets right gets Brainly
Answer:
(-4,3) is p i holp it help
Amy reached into a bag, recorded the color of the tile she picked, returned the tile and drew again. These are the tiles she has drawn so far: red, red, blue, yellow, blue, red, green, red, blue, green Based on this data, a. What is the probability that her next draw will be red? 40 b. What is the probability that her next draw will NOT be blue? c. If she draws 70 more times, how many times would you expect a green?
Answer:
A) 0.7
B) 0.2
C) 14 times
Step-by-step explanation:
We are told that the tiles she has drawn so far are;
red, red, blue, yellow, blue, red, green, red, blue, green.
In this, we have 10 number.
So for the first 10 number of tiles, she had:
4 red tiles
3 blue tiles
1 yellow tile
2 green tiles
A) probability that her next draw will be red = number of red tiles/total number of initial tiles drawn = 4/10 = 0.4
B) probability that her next draw will NOT be blue = number of tiles that are not blue/total number of initial tiles drawn = 7/10 = 0.7
C) Probability that the next draw will be green = number of tiles that are green/total number of initial tiles drawn = 2/10 = 0.2
Now, if she draws 70 more times, number of times she will expect a gree tile = 0.2 × 70 = 14 times
Which of the following statements is correct? A. During times of high inflation, interest rates on new loans for cars, homes, and credit cards fall. B. The degree of inflation risk is higher for short-term lending. C. Stock market investors are positively affected when inflation rises. D. Long-term interest rates are generally higher than short-term interest rates.
Answer:
D.
Step-by-step explanation:
The longer the interest rate, the more money it will generally cost someone.
He Hernández family is going to a swim meet. They bought 2 cases of water for $3.98 each, 3 bags of ice for $1.99 each, and a bag of oranges for $8.89. Before they leave, they filled up the car with 38.63 liters of gasoline at a cost of $0.655 per liter. What is the total cost for everything before tax?
Total cost of water, w =$ 3.98×2 = $7.96 .
Total cost of ice, i = $ 1.99×3 = $5.97 .
Total cost of orange, o = $8.89 .
Total cost of gasoline , g = $38.63×0.655 = $25.30 .
Now, total cost is the summation of every cost mention above :
T = $ ( 7.96 + 5.97 + 8.89 + 25.30 )
T = $48.12 .
Therefore, total cost for everything before tax is $48.12 .
Hence, this is the required solution.
what is this math symbol
(the middle one in between the 2 lines)
This math symbol reflect the sign of perpendicular.
mariana wants to put 6 3/4 feet of border across the top of a wall she has 3 6/7 feet of border. what fraction of the project can she complete
Answer:
[tex]\frac{4}{7}[/tex]
Step-by-step explanation:
Length of the border Mariana wants to put across the top of a wall = [tex]6\frac{3}{4}[/tex] feet
= [tex]\frac{27}{4}[/tex] feet
If she has the length of the border = [tex]3\frac{6}{7}[/tex] feet
= [tex]\frac{27}{7}[/tex] feet
Therefore, fraction of the project can be completed = [tex]\frac{\frac{27}{7}}{\frac{27}{4} }[/tex]
= [tex]\frac{27}{7}\times \frac{4}{27}[/tex]
= [tex]\frac{4}{7}[/tex]
Fraction of the project can be completed = [tex]\frac{4}{7}[/tex]
Answer:
4
7
Step-by-step explanation:
have the same question
Use the fact that ºF = (9/5)ºC + 32 to help you answer the following questions. (c) Find the mean temperature in degrees Fahrenheit. What does this suggest about the value of the “normal” body temperature?
Answer:
it 37 degree c
Step-by-step explanation:
F=9/5*37+32
F= 98.6
Find the slope of the line with the following points:
(9,3) & (-2,6)
Answer:
m=-0.2727272727
Step-by-step explanation:
Use the formula m=(y *2 - y *1) / (x *2 - x *1)
So it will be (6-3) / ((-2)-9)
Which results in 3/-11 = -0.272727272727272
Cody was 165\,\text{cm}165cm165, start text, c, m, end text tall on the first day of school this year, which was 10\%10%10, percent taller than he was on the first day of school last year.
How tall was Cody on the first day of school last year?
Answer:
150
Step-by-step explanation:
Answer:
150cm
Step-by-step explanation:
Write an equation of the line passing through the point (4,3) that is perpendicular to the line 4x-7x=9
Answer:
The equation 4x-7x=9 simplifies into x=-3, which is a horizontal line. A perpendicular line would be vertical, and the equation for vertical lines is y=b, b being a constant. In this case on the point (4,3), y is 3, so the equation of the line is y=3.