Answer:
x = 7
y = 2
Step-by-step explanation:
x² - y² = 45
(x+y) (x-y) = 45
x + y = 9 (known)
9 x (x-y) = 45
x - y = 5
y = x-5
x + (x - 5) = 9 (substitute)
2x = 14
x = 7
y = 2
I will only give points if you give me a long answer (not THAT long.). Now, what is 100 x 300. Make sure to give a long answer but not that long. So enjoy your day.
Answer:
100×300=3000
Step-by-step explanation:
hope the picture attached helps
Cameron and Cadena go out to eat for lunch. If their food and beverages cost $22.50 and there is a 9% meals tax, how much is the bill?
Answer:
22.59
Step-by-step explanation:
Answer: 24.53
22.50 x 9% = Unknown = ?
22.50 x 0.09 = 2.03
22.50 + 2.03 = 24.53
Answer/ Total Cost = 24.53
Step-by-step explanation: I Hope this helps you!
what is the slope of the line that contains points (3,-9) and (-2,16) please help !!
Slope = Change in Y / change in x
Slope = (16 - -9) / (-2 - 3)
Slope = 25/-5
Slope = -5
You flip a coin 100 times in the air and find that it lands on heads 65 times. Determine the theoretical and experimental probability of landing on heads. In your final answer, include all of your calculations.
Answer:
The experimental probability --> [tex]\frac{13}{20}[/tex]
The theoretical probability --> [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Key skills needed: Experimental vs theoretical probability, Fractions
1) The first thing you need to understand is experimental probability vs theoretical probability. (Do not include this in your work!!)
- Theoretical probability is based on simple reasoning
- Experimental probability is based on the results a person gets (so the experiment you did by flipping the coin)
2) Now with this, let's start solving:
Experimental probability ---> [tex]\frac{heads}{total}[/tex] --> You flipped the coin a total of 100 times, so the denominator would be 100. 65 of those would be heads so 65 is our numerator. So our experimental probability is --> [tex]\frac{65}{100}[/tex] --> Both have the factor of 5, so take the factor of 5 out of the numerator and denominator and you will get --> [tex]\frac{13}{20}[/tex] Now onto theoretical probability --> [tex]\frac{heads}{total}[/tex] --> There are 2 faces of a coin, 1 side is heads, and 1 side is tails --> The total number of faces is 2, so 2 is our denominator. There is only 1 side that is heads, so 1 is the numerator. This means --> Our theoretical probability is [tex]\frac{1}{2}[/tex]Hope you understood and have a nice day!! :D
Answer:
Experimental Probability: 65/100 We tested the probability 100 times, 65 of those times being heads. So %65 is our experimental probability (in percentage form) of flipping a coin and landing on heads. Simplified, 13/20 is our fraction.
Theoretical Probability: 50/100 or 1/2. There are two sides to a coin, and one is heads, so the theoretical probability is 1/2. In percentage form, the probability would be %50, or 50/100.
Enter an expression equivalent to (a^9/a^3) in the form a^m
Answer:
Step-by-step explanation:
[tex]\frac{a^{9} }{a^{3} } =>[\frac{a^{3} }{a} ]^{3}[/tex]
Yesterday I ran 9.6 miles at an average speed of 0.4 miles per 5 minutes. How long did it take me to run the 96 miles?
Answer:
Step-by-step explanation:
This is how we do it in college, I hope I can be of some help.
First, you multiple 9.6 miles with 5 minutes. Then, you divide your answer with 0.4 miles. Next, you cancel the two mile units because of division and then be left with 120 minutes.
9.6 miles x 5 minutes = 48 miles x minute = 120 minutes
0.4 miles 0.4 miles
(-11/6) + m = -2/9
help me pls
Answer:
M= 29/18
Step-by-step explanation:
what is 11.35 divided by 0.35?
Answer:
32.43 (rounded)
Step-by-step explanation:
Answer:
32.4285714
Step-by-step explanation:
11.35/0.35=32.4285714
This is the answer however if your question has asked to round it to two decimal places the answer would be 32.43
i hope this helps
Anna saved $30 each month from babysitting for 2.75 years. She spent 75% of her savings on a computer.
How much money did Anna have left?
Answer:
45.00 is what she has left
Step-by-step explanation:
Anna has $275.5 left after buying computer.
What is the percentage?A percentage is a minimum number or ratio that is measured by a fraction of 100.
Given that Amount saved by Anna each month = $30
Time period = 2.75 years.
1 year = 12 months
2.75 years = 2.75 years x 12 = 33 months
The Amount saved in 33 months = 33 x 30 = $990
She spent 75% of her savings.
Amount spent = 75% of 990
Amount spent = 75% x 990
Amount spent = $742.5
Amount left = Savings - Amount spent
Amount left = 990- 742.5= $275.5
Hecne, Anna has $275.5 left after buying computer.
Learn more about percentages;
brainly.com/question/24159063
#SPJ2
A roll of tape has a total length of 150 inches. What is the length of the roll of tape , in yards ?
Answer:
4.16667
Explain:
i looked it up
Answer:
4 and 1/6 yards
Step-by-step explanation:
There are 36 inches in each yard since there are 3 feet in a yard and 12 inches in a foot. if you divide 150 inches by 36 inches you get 4 yards with a remainder of 6 inches which is 1/6th of a yard
1) Solve: – 4x – 11 = 7
Pls help
Answer:
x = -9/2
Step-by-step explanation:
-4x - 11 = 7
-4x = 7 + 11
-4x = 18
x = -18/4
x = -9/2
2. What is the minimum value of of the function below
y = 2x2 – 8x + 11
O y=-3
O y = 2
O y = 3
O y = 11
What is the minimum value of of the function below y = 2x2 – 8x + 11 O y=-3 O y = 2 O y = 3 O y = 11
Details: Cargo ship can carry 21,600 tons Cars weigh 3.6 tons each Trucks weigh 7.5 tons each y = number of cars x= number of trucks Your equation was 3.6y + 7.5x = 21600 Find the number of trucks that can be shipped if there are no cars.
Given:
The equation is
[tex]3.6y+7.5x=21600[/tex]
where, y is the number of cars and x is the number of trucks shipped.
To find:
The number of trucks that can be shipped if there are no cars.
Solution:
We have,
[tex]3.6y+7.5x=21600[/tex]
If there are no cars in the cargo ship, then y = 0 because y is the number of cars.
Putting y=0 in the given equation, we get
[tex]3.6(0)+7.5x=21600[/tex]
[tex]0+7.5x=21600[/tex]
[tex]7.5x=21600[/tex]
Divide both sides by 7.5.
[tex]x=\dfrac{21600}{7.5}[/tex]
[tex]x=2880[/tex]
x is the number of trucks shipped.
Therefore, the number of trucks that can be shipped if there are no cars is 2880.
h(t)=- 16t^2 +16t+12 zeros of the parabola
Step-by-step explanation:
h(t) = -16t² + 16t + 12
h(t) = -4(4t² - 4t - 3)
h(t) = -4(2t - 3)(2t + 1)
When h(t) = 0, we have t = 1.5 or t = -0.5.
Hence the zeroes are 1.5 and -0.5.
Determine the sum of the areas of the three triangles shown above.
I will be there at the same time I don't hear
Paisley set up the following equation to solve a math problem: 33 + 57 + x = 180. What could the x represent?
Jack is making bread dough. One recipe requires 3/4 cup of flour and 1 1/8 tap of salt. If he wants to triple the recipe,how much of each ingredient will he need
Answer:
jack would need 2 1/4 cups of flour and 3 3/8 taps of salt
Step-by-step explanation:
Answer:
3 and 3/8 tap of salt and 2 and 1/4 cups of flour
Step-by-step explanation:
Calculate the slope represented by the table.
Answer:
y=2x-3
Step-by-step explanation:
I hope that helped
Use the given similar triangles to find the value of x
I need the answer fast please!!
Answer:
I believe the answer is x=7
Step-by-step explanation:
3x and 4x-1 are corresponding sides and so are 14 and 18.
You cross multiply with the smaller triangle lengths at the top.
3x/(4x-1)= 14/18
Cross multiply to get
18(3x)= 14(4x-1)
54x=56x-14
Subtract 54x on the other side and add 14 to the other (or subtract 56x to the other side)
you get 14=2x and divide 14 by 2 to get x=7
Plsssss Help!!!
Determine whether each statement is true or false given the linear functions modeled by table A table and table B.
T F T
Step-by-step explanation: JUST DID THE TEST
A recipe for 2 dozen of Mr.M’s cookies calls for 2 1/2 cups of chocolate chips. He is making 6 dozen cookies. How many cups of chocolate chips does he require? Simplify you answer
Find the value of A in each cases:
- cosA=√3/2
Answer:
A = [tex]\frac{5\pi }{6}[/tex]
Step-by-step explanation:
Given that Cos A = [tex]-\frac{\sqrt{3} }{2}[/tex]
cos A = [tex]cos (\pi -\frac{\pi }{6} )[/tex]
A = [tex]\pi - \frac{\pi }{6}[/tex]
A = [tex]\frac{5\pi }{6}[/tex]
Find the coordinates of the midpoint ofL(2, -4), M(4, 6)
Answer:
[tex]\displaystyle (3,1)[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Midpoint Formula: [tex]\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Step-by-step explanation:
Step 1: Define
Point L(2, -4)
Point M(4, 6)
Step 2: Find Midpoint
Simply plug in your coordinates into the midpoint formula to find midpoint
Substitute in points [MF]: [tex]\displaystyle (\frac{2+4}{2},\frac{-4+6}{2})[/tex][Fraction] Add: [tex]\displaystyle (\frac{6}{2},\frac{2}{2})[/tex][Fraction] Divide: [tex]\displaystyle (3,1)[/tex]simplify the following
[tex]\sqrt{98][/tex]
[tex]\sqrt{16 b^{5} }[/tex]
[tex]3\sqrt{5m} x 4\sqrt{\frac{1}{5} m3}[/tex]
[tex]\sqrt{26x2}[/tex]
Step-by-step explanation:
Simplify:
[tex]\sqrt{98} = \sqrt{49*2} = \sqrt{7^2*2} = 7\sqrt{2}[/tex][tex]\sqrt{16b^5} = \sqrt{4^2(b^2)^2b} = 4b^2\sqrt{b}[/tex][tex]3\sqrt{5mx^4} \sqrt{1/5m^3} = 3\sqrt{5*1/5*m^4x^4} = 3\sqrt{(m^2)^2(x^2)^2} = 3m^2x^2[/tex][tex]\sqrt{26x^2} = x\sqrt{26}[/tex]Answer:
[tex]→ \sqrt{98} = \sqrt{7 \times 7 \times2} = 7 \sqrt{2}✓ [/tex]
[tex]→ \sqrt{ 16{b}^{5} }= \sqrt{4 \times 4 \times {b}^{5} } = 4 {b}^{ \frac{5}{2} } ✓[/tex]
[tex]→3 \sqrt{5 mx^{4} } \sqrt{ \frac{1}{5} {m}^{3}} = 3 \sqrt{5 \times \frac{1}{5} {m}^{4} {x}^{4} } = 3 {m}^{2} {x}^{2} ✓[/tex]
[tex] →\sqrt{26 {x}^{2} } = \sqrt{26} x✓[/tex]
i don't know how this works
13. Blake Brown demonstrates cookware at the National Food Fair. He is paid $7.00 each for the first 10 demonstrations in one day and $8.50 for each
demonstration over 10. What is his commission if Blake makes 12 demonstrations in one day?
Renee calculated 3/6 plus 2/4 and said the answer equaled 5/10. Amanda solved the same problem and said the answer equaled one whole. Whose answer is more reasonable?
Answer:
Amanda's
Step-by-step explanation:
Given :
3/6 + 2/4
The L. C. M of 6 and 4 = 12
(6 + 6) / 12
12 / 12
= 1
Renne's result = 5/10
Amanda's result = 1 whole
Hence, Amanda's result makes more sense.
what year was the best 2020 or 2019 lol I think we all know the answer
Answer:
2019 obviously!!!!!!!!!!
what is the decimal expansion of the following fraction 1/25
Answer:
0.04
Step-by-step explanation:
FOR 90 POINTS PLEASE HELP
QUESTION 1
If RS is 2x+15, and VW is 3x+5, and UT is 6x-37. What is RS?
QUESTION 2
Angle J is (7x+2) Angle L is (25x-14)
What is (x)
Answer:
Question 1: RS=47
Question 2: x=6
Step-by-step explanation:
Question 1:
Step 1: 3x+5=2x+15+6x-37
Step 2: 3x+5=8x-22/2
Step 3: 3x+5=4x-11
Step 4: x=16
Step 5: 2(16)+15=32+15=47
RS= 47
Question 2:
Step 1: 7x+2+25x-14=180
Step 2: 32x-12=180
Step 3: 32x=192 (divide 32 from each side)
x=6