Help thank you ! Elimination method
Answer:
x=0
y=7
Step-by-step explanation:
Divide 6x-4y=-28 by -2..... -3x+2y=14
3x+5y=35
-3x+2y=14
--------------
7y=49
y=7
6x-4*7=-28
x=0
help please i will mark brainliest
Answer:
The answer is 8.66054037 as a decimal. It's asking for a root though.
Step-by-step explanation:
convert 23 m into mm
Answer: It is 23,000 Millimeters
Step-by-step explanation:
23 Meters = 23,000 Millimeters
Answer: maybe 2mm?
Step-by-step explanation:
Philip has a box of crayons. 45 are yellow, 12 are green, 25 are blue, and 8
are red. If Philip selects a crayon at random, what is the probability of not
picking a green? *
a. 1/2
b. 5/18
c. 2/15
d. 13/15
Answer:
option d
Step-by-step explanation:
First we find the probability of getting green, then we can subtract the result from 1 to find the probability of not getting the green crayon
P( green )
[tex]\frac{12}{45+12+25+8} \\= \frac{2}{15}[/tex]
P '(green) = 1 - 2/15
= 13/15
Please help, Describe two methods that can be used to find the area of the composite figure.
Area of the composite figure can be find by using additive areas method and subtractive areas method
What is Composite figure?Composite geometric figures are made from two or more geometric figures. The composite figure below is made from parts of a rectangle and a circle
Since, Area is the quantity that expresses the extent of a region on the plane or on a curved surface.
Area of the composite figure can be find by using two methods,
Additive areas method and Subtractive areas method
In Addictive areas method
Break the composite shape into basic shapes
Find the area of the each basic shapes
Add all the areas of basic shapes together
In Subtractive areas method
Break the composite shape into basic shapes. That shape maybe larger than the composite shapes.
Find the area of the each basic shapes
Area of the composite shape will be the difference between the area of the larger shape.
Hence, the area of the composite figure can be find by using additive areas method and subtractive areas method
Learn more about Composite figure here;
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A bag of marbles contains only purple and yellow marbles. The bag has three times as many yellow as purple, the bag contains 164 total marbles
HOW MANY PURPLE MARBLES DOES IT CONTAIN??
Answer:
41 purple marbles
Step-by-step explanation:
x= amount of purple marbles
3x+x=164
4x=164
x=164/4=41
Find the area of the quadrilateral below. Formula is: A=1/2h(b1+b2)!!
Answer:
2.6 in^2
Step-by-step explanation:
A=a+b
2h=0.6+2
2·2=2.6
Answer: 2.6
Step-by-step explanation:
A= h(b1+b2)
Which statement is true about the equation
It has no solution.
It has one solution
It has two solutions.
It has infinitely many solutions.
Answer:
it has one solution which is 4
Answer:
hope this helps you......
Jessica bought 5 gallons of orange juice. The cost of 1 quart of orange juice is $2. How much, in dollars, did Jessica spend on orange juice?
Answer:
$40
Step-by-step explanation:
convert gallons to quart
1 gallon = 4 quarts
5 x 4 = 20 quarts
total cost = 20 x 2 = $40
Micheal is using the table below to find the value of 128 x 72 .
Thank you to anyone who answers .
Answer:
it's 128 x 72 =9,216
Step-by-step explanation:
N = 560
The volume of a sphere can be calculated by V = 4/3 * pi If the volume is 113.04 cm ^ 3 what is the radius?
Answer:
2.99 cm
Step-by-step explanation:
V= [tex]\frac{4}{3}[/tex](pi)(r^3)=113.04cm^3
113.04/ [tex]\frac{4}{3}[/tex](pi) = r^3 = 26.99
r=[tex]\sqrt[3]{26.99}[/tex] = 2.99cm
Answer:
Step-by-step explanation:
Answer is 3
1-4) What is the point of intersection?
Answer:
Step-by-step explanation:
How do you solve an equation?
Answer:
What kind of Equation?
Quadratic Equation.
Linear Equation.
Radical Equation.
Exponential Equation.
Rational Equation.
Need help with this question as well thank you ppl
Answer:
42 .. isn't that the answer to everything? :P
Step-by-step explanation:
Please simplify. IF U TRY TO SCAM ME WITH A LINK OR A NON ANSWER, I REPORT!!
Answer:
1. 192 or 12^4 13. 4c^7 d^13
2. 8x^6 14. 16f^10 g^22
3. x^8 15. x^4y^4
4. 4x^5 16. xy
5. 6^2 17. x^12/64y^9
6. 1/x^3 18. x^8/256y^16
7. 1 19. 1/y^7
8. -1 20. 1/49
9. y^12 21. x^5
10. x^8y^4 22. 16
11. 3x^3 23. x^4
12. 2x^3 24. 1/x^6
25. x^2
26. 1/j^3
Hope this helps! :)
When you roll 2 die, what is the probability of the event: Two numbers are odd and the sum is less than 5.
==========================================================
Explanation:
Let's use (x,y) notation to denote the results of the two dice. So x is the first dice value and y is the second. Something like (2,1) means we rolled a '2' on the first die, and a '1' on the second die. The order matters.
We want both x and y to be odd, and we also want x+y < 5.
Here are all of the ways to fit those conditions:
(1,1)(1,3)(3,1)There are 3 ways to achieve this goal out of 6*6 = 36 ways to roll two dice without any restriction. The probability we're aiming for is 3/36 = 1/12
Side note: 1/12 = 0.0833 = 8.33% approximately.
Complete the table for the given rule.
Rule: y = 52
~Answer~
Substitute your numbers:
y = 5x
For the first one, y equals 5, so substitute 5 for y.
So, 5 = 5x.
What multiplied by 5 gives 5? The answer is 1.
So, the first one is 1.
Do the same for all the others.
So, 4 = 5x.
4 = 5(4/5)
As a decimal that equals 0.8.
For the last one, I can't tell if that is saying 2 or .2 so I'll do both.
for 2, you will do 2 = 5x and for .2, you will do .2 or 0.2 = 5x.
For 2, it would be 2/5 or 0.4.
For .2 or 0.2, it would be 0.04.
So,
x y
1 5
4/5 or 0.8 4
0.4 if it is 2 and 0.04 if it is 0.2. 2
(looking back, I'm pretty sure it was just 2 and not .2)
I hope this is what u were looking for, if not I'm so sorry for a useless answer. I wasn't completely sure whether I was doing it right since I haven't done these types of math problems in some time.
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The temperature was 48°F and dropped 15° in two hours.
What was the temperature after the change?
Answer:
33 degrees Fahrenheit.
Step-by-step explanation:
If the temperature was 48 degrees, and it dropped 15, that means the initial temperature was subtracted by 15.
48 - 15 = 33.
Answer:
33°F
Step-by-step explanation:
The initial temperature was 48°F. Then, it dropped by 15°.
I am assuming that both values are given in the same unit.
48 - 15 = 33
The temperature should be 33 degrees now.
Hope this helps.
A cylindrical metal pipe has a diameter of 8.4 millimeters and a height of 10 millimeters. A hole cut out of the center has a diameter of 6 millimeters. A smaller cylinder is cut out of a larger cylinder. The smaller cylinder has a diameter of 6 millimeters. The larger cylinder has a diameter of 8.4 millimeters. Both cylinders have a height of 10 millimeters. What is the volume of metal in the pipe? Use 3.14 for and round the answer to the nearest tenth of a cubic millimeter. 282.6 mm3 271.3 mm3 553.9 mm3 836.5 mm3
Answer:
its b
Step-by-step explanation:
got it right on edge
The volume of the metal in the cylinderical pipe given the dimensions of the larger and smaller cylinders is 271.30 mm³.
What is the volume of the cylinder?A cylinder is a three-dimensional object. It is a prism with a circular base.
Volume of a cylinder = nr^2h
Where:
n = 22/7 r = radius = diameter / 2The volume of the metal in the cylinderical pipe = 3.14 x 10 x [(8.4/2)² - 6/2)²] = 271.30 mm³
To learn more about to determine the volume of a cylinder, check: https://brainly.com/question/9624219
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¡please help!
The solutions of the equation -x2 +1 = 0 are
and x =
Answer:
x = 1, x = -1
Step-by-step explanation:
-x² = -1
x² = 1
x = ±1
NEED HELP
On a unit test in a statistics class, the teacher determines that the mean test grade was 77.5 with a standard deviation of 5.2. One student’s test grade was 91. What is the z-score for the student’s test?
–5.20
–2.60
2.60
5.20
Answer:
2.60
Step-by-step explanation:
z-score is the difference between the score and mean, divided by the standard deviation.
[tex]z = \frac{x - \mu}{\sigma}[/tex]
[tex]z = \frac{91-77.5}{5.2} = \frac{13.5}{5.2} \approx 2.596[/tex]
So 2.6 is an answer close enough.
How would I be able to solve for x?
PLZZ HELP Me ASAP!!!!
Answer:
see explanation
Step-by-step explanation:
(a)
The area is calculated as length × breadth
area = 2x(2x + 6) ← distribute
= 4x² + 12x
(b)
area = x(x + 4) ← distribute
= x² + 4x
(c)
shaded area = 4x² + 12x - (x² + 4x)
= 4x² + 12x - x² - 4x ← collect like terms
= 3x² + 8x
The local grocery store sells a gallon of milk for 2.94 if my family drinks 1.5 gallon of milk every week how much will they spend on milk for 4 weeks
Answer:
$17.64
Step-by-step explanation:
First multiply 2.94 and 1.5 to find the price for 1.5 gallon os milk.
2.94 x 1.5 = 4.41
Then you multpily by 4 to see the balance after 4 weeks
4.41 x 4 = 17.64
Can anyone help me with #1 and #2 and #7 and #8 please I will mark brainlist!!!
Step-by-step explanation:
For #7 and #8, they have given you the answer of the product but without decimals.
You can just add up all the decimal places for this kind of multiplication.
For example, 6.543 and 2.6 have 4 decimal places in total (underlined), so just count four: 17.0118.
Find the area of this shape *
Answer:
134.1 ft²
Step-by-step explanation:
Fine the area of the square first, then subtract the area of the circle to find the area of the shaded part.
The area of the square
= 25²
= 625 ft²
The radius of the circle
= 25 ÷ 2
= 12.5 ft
The area of the circle
= π × 12.5²
= 490.87385...
= 490.9 ft² (rounded up to the nearest tenth)
The area of the shaded part
= 625 - 490.9
= 134.1 ft²
HELPPPPZ WORTH 30 POINTS AND BRAINLIEST
You don't need help my dude, you already have all of the right answer. Good job!!!
NEED HELP ASAP !!
A. x=14; angle measure is 30°
B. x=14; angle measure is 42°
C. x=14; angle measure is 30°
D. x=10; angle measure is 42°
Answer:
C
Step-by-step explanation:
i dont really know anything about angles but it looks like the 3x is the exact same angle as 30 degrees on the other side of it
3x=30
x=10
Arianna solved a fraction division problem using the rule " multiply by the reciprocal ". Her work is shown below 2/3 divided by 4/5 2/3 x 4/5 = 8/15
Answer:
2/3 divided by 4/5 = 5/6
Step-by-step explanation:
Arianna working:
2/3 divided by 4/5
= 2/3 x 4/5
= 8/15
Correct working:
2/3 divided by 4/5
= 2/3 ÷ 4/5
Multiply 2/3 by the reciprocal of 4/5
= 2/3 × 5/4
= (2*5) / (3*4)
= 10/12
= 5/6
2/3 divided by 4/5 = 5/6
Arianna's mistake was she didn't multiply by the reciprocal of 4/5
If m = 100 what is the value of q?
q = 21.344 m
A. 213.44
B. 2,134.4
C. 21,344
D. 213,440
Answer:
The Answer is gonna be C. 21,344
Answer:
B) 2134.4
hope it helps.....