Answer:
x = -4/5, y = 13/20
Step-by-step explanation:
-10x + 4 = 12
-10x = 8
x = -4/5
3x - 4y = -5
3(-4/5) - 4y = -5
-12/5 - 4y = -5
-4y = -13/5
y = 13/20
Double check:
3x - 4y = -5
3(-4/5) - 4(13/20) = -5
-12/5 - 13 = -5 (true)
You have a bag with 10 pennies, 10 quarters, and 10 dimes. You draw 2 coins without replacement. Which action, performed before the draws, increases the probability of drawing 3 quarters in a row? O removing pennies and dimes from the bag O adding dimes to the bag O adding pennies to the bag o adding pennies and dimes to the bag
Answer:
Removing pennies and dimes from the bag
Step-by-step explanation:
From the beginning, we have a 1 in 3 chance of drawing a quarter. If we were to add dimes and/or pennies to the bag, this would make us more likely to draw a dime or a penny, and less likely to draw a quarter. Proportionally, we want the most quarters in the bag to get the highest probability of drawing a quarter from the bag.
An aquarium tank is 3 feet long 1 foot wide and 2 feet high how many gallons of water would it take to fill the tank two thirds full a cubic foot is about 7.5 gallons
Answer: i believe it'll take 6 gallons to fill up the tank two thirds full
Step-by-step explanation: 3 x 1 x 2 = 6 gallons
Can you PLEASE write a paragraph of how tragicomic functions work PLEASE!!!
3 with tiny 2 on top+1•2
Answer:
11
Step-by-step explanation:
3^2 + 1 • 2 = 11
NOTE:
'^' is the exponent symbol
— 2x — 6 = 3x — 21
Help me anyone
Answer:
Step-by-step explanation:
-2x+3x=-21+6
or x=-15
Answer:
x=3
Step-by-step explanation:
-2x-6=3x-21
Add 21 to both sides of the equation
-2x-6+21=3x-21+21-2x+15=3xAdd 2x to both sides of the equation
-2x+2x+15=3x+2x15=5xDivide each side by 5 to isolate x
15÷5=5x÷53=x2x+2 (1-4X) = 88-5 (x+4)7x + 2
Answer:
x=4/7
Step-by-step explanation:
Maya says there are 4 hundreds in 5,467. Jenny says there are 54 hundreds in 5,467 they're both right.
Answer:
Both are right
Step-by-step explanation:
As maya say 4 hundreds in 5,467
this is right because the place value of 4 in 5467 is 4 hundreds = 400.
but Jenny says 54 hundreds in 5,467
this also correct because number 5467 in word is five thousand four hundred and sixty seven
54 hundreds = 54 × 100 = 5400
as here place value of 5 is 5000 and place value of 4 is 400
so, Addition of both gives = 5000 + 400 = 5400
If we divide 5400 by 100, we would have 54
It shows that there are 54 hundreds
so, Both are right
Calculate the speed of a car traveling a total distance of 60 meters in 4 seconds. pls help will give brainliest
Answer:
15 meters per second
Step-by-step explanation:
60/4 = 15
Answer:
15 meters per second
11 is the quotient of a number y and 6.
Answer:
y = 66
Step-by-step explanation:
11 = y/6
11*6 = y
66 = y
During a high school basketball season, Casey successfully made 18 of the 25 free throws she attempted. What is her percentage of successful throws?
Answer:
72%
Step-by-step explanation:
Basket she made successfull = 18/25
Percentage = 18/25 x 100 = 72%
Which one plss I need to pass
Answer:
the middle or bottom one
Step-by-step explanation:
The sum of eight and a number, x, is four.
Answer:
-4
Step-by-step explanation:
Select all expressions that are equivalent to -4(x+2)-2x+4
-6x-4 is the expression which is equivalent to -4(x+2)-2x+4
What is Expression?An expression is combination of variables, numbers and operators.
The given expression is -4(x+2)-2x+4
Minus four times of x plus two minus two times of x plus four
x is the variable
Plus and minus are operators
We have to find the equivalent expression of -4(x+2)-2x+4
Apply the distributive property
-4x-8-2x+4
Combine the like terms
-6x-4
Hence, -6x-4 is the expression which is equivalent to -4(x+2)-2x+4
To learn more on Expressions click:
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The perimeter of the parallelogram shown is 244 inches. The
difference between the lengths of the sides is 20 inches. Assuming 2x+3y is the longest side, find the length of each side.
A. 16 inches, 13 inches
B. 66 inches, 56 inches
C. 71 inches, 51 inches
D. 74 inches, 54 inches
Answer:
a
Step-by-step explanation:
it is a because the 2x+3y simple because you cant add different varibles
The lengths of sides of the parallelogram are 71 inches and 51 inches. Hence, option (C) is correct.
What is parallelogram?A unique variety of quadrilateral called parallelogram, a parallelogram has both pairs of its opposite sides parallel and equal.
Let sides of the parallelogram are a and b.
The perimeter of parallelogram = 2(a+b)
Given that,
The perimeter of parallelogram = 244
implies that,
2(a+b) = 244
a+b = 122 (1)
Also, the difference of sides is 20 inches,
implies that,
a-b = 20 (2)
By solving equation (1) and (2),
a = 71 inches,
b = 51 inches.
The lengths of sides of the parallelogram are 71 inches and 51 inches.
To learn more about Parallelogram on:
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Which trig ratio would you use to solve this?
O Sine
O Cosine
O Tangent
O Saskatchewan
Answer:
Cosine
Step-by-step explanation:
sine = soh=o/h
cos=cah=a/h
tangent=toa=o/a
If you look at right triangle the slanted line is the hypothese. it will always be. so thats h. the adjacent is the line connected the the angle you are looking for. and opposite is the line thats away from the angle.
Sarah read 215 pages of her book during the first week of vacation. During the second week she read62 more pages then the first week
Answer:
She read 277 pages during the second week.
Step-by-step explanation:
215 + 62.
Answer: she read 277 books
Step-by-step explanation:
in the picture is my question :3 thank you so much for your help!
please help will give brainliest answer
Answer:
Question 3
C. [tex] y-9 =1/2(x-1)[/tex]
Question 4
D. [tex] y+5 =3(x+2)[/tex]
Step-by-step explanation:
Question 3:
Equation of line in point slope form is given as:
[tex] y-y_1 =m(x-x_1)[/tex]
Plug m = 1/2, [tex] x_1 = 1, \:y_1 = 9 [/tex] in the above equation, we find:
[tex] y-9 =1/2(x-1)[/tex]
This is the required equation of the line.
Question 4:
Equation of line in point slope form is given as:
[tex] y-y_1 =m(x-x_1)[/tex]
Plug m = 3, [tex] x_1 = - 2, \:y_1 = - 5[/tex] in the above equation, we find:
[tex] y-(-5) =3[x-(-2)][/tex]
[tex] y+5 =3(x+2)[/tex]
This is the required equation of the line.
Write a condolence letter to your bosom friend who recently lost his mother.
Answer:
Hey man, I'm sorry for you loss, if there is anything that I can do like bring you ice cream or pizza or something let me know. I am here for you, and I hope you feel better soon.
2. Lin solved a quadratic equation by factoring and found one solution to be x = 3/4.
Which of the following expressions could have been one of her factors?
A.x-3
B. 4x +3
C. 3x – 4
D. 3x +4
Which expression is equivalent to − 5 ( 8 x + 9 ) − 7 x?
Answer:
12
Step-by-step explanation:
If q is a rational number and r is a real number,
then q + r is
Answer:
(D)
Step-by-step explanation:
~a rational number....I hope it helps
£800 is paid into a bank account that pays 3% simple interest
annually.
How much will be in the account after 1 year
Answer:
£824
Step-by-step explanation:
3% of 800 + 800
1% = ÷100
800 ÷ 100 = 8
8×3=3%=24
800 +24 =£824
Choose all the statements that are true about the graph.
Answer:
f(x) is negative when x < 9f(x) is increasing when x < 1The x-intercept is 9Step-by-step explanation:
The function is
f(y) = (y + 2)³ + 1
There is a brick patio around a fire pit, as shown. Use 3.14 for pi.
What is the area of the fire pit?
Answer:
28.27
you just have to know the formula
Solve x 2 + 2x - 1 = 0
Answer:
x=-1/2
Step-by-step explanation:
hope this helps
what is a linear equation that is perpendicular to y=5
Imagine you measure the length of 15 cars, and then sum that length, in order to see how big a parking lot must be. You do this in two different ways. First, you use the same bad tape measure for each car so that your measurement is always 1 cm too long, or always too short, for all of the measurements. For your second attempt, you use a different bad tape measure for each car, so there is an uncertainty of plus or minus 1cm in each measurement. What is your estimate of the total error in the sum of all the car lengths in these two cases
Answer:
± 15 cm
Step-by-step explanation:
In the first case, since the measurement is 1 cm too long or too short, the error is ± 1 cm.
In the second case, the uncertainty or error is also ± 1 cm.
Now, since there are 15 cars, and there is an error of ± 1 cm in each measurement, by the error formula the total error in the sum of both cases is 15 × ±1 cm = ± 15 cm
So, the total error in both cases is ± 15 cm.
Solve for indicated side
Your Answer:
Question 4 options:
Answer
Answer: x=10
Step-by-step explanation:
Picture below.
What is the circle the triangle and the square
Answer:
26
Step-by-step explanation:
○= 7
□=5
◇=4 (The triangle)
