Answer:
156
Step-by-step explanation:
x - √+ = 12
= 12^2= 144
x = 144
5(x-3y)-2x=6 and x=3y
Solve the equations please by substitution
Answer for the first equation:
(7, -1)
Step-by-step explanation:
Original Equation: 5(x - 3y) - 2x = 6 When x = 3y
Substitute in the 3y for x:
5(3y - 3y) - 2(3y) = 6
5(0) - 6y = 6
-6y = 6
y = -1
Plug -1 in for y in the original equation:
5(x -3(-1)) - 2x = 6
5(x + 3) - 2x = 6
5x + 15 - 2x = 6
3x + 15 = 6
3x = -9
x = -3
Help plsssss is due at 11:59 I don’t have much time
what is the reciprocal of 8/5?
Answer:
5/8
Step-by-step explanation:
To find the reciprocal, flip the fraction. The sign remains the same.
The reciprocal of 8/5 is 5/8.
Answer: 5/8
Answer:
D
Step-by-step explanation:
what is the standard form of (x + 1 + i)(x + 1 − i)
Answer:
hope it helps
Step-by-step explanation:
please mark me as brainliest thank you
The area of cross section of a prism is 45cm² and its height is,10cm. Find its volume
Answer:
The Volume of triangular prism
V = 450 cm³
Step-by-step explanation:
Explanation:-
Given The area of cross section of a prism A = 45cm²
and height (h) = 10 cm
The Volume of triangular prism
V = ( Base area X Height )
= 45 X 10
= 450 cm³
The Volume of triangular prism
V = 450 cm³
a. -6 + 2x + 4 + 3x - (-2)
What is the answer?
Answer:
5x
Step-by-step explanation:
-6 + 2x + 4 + 3x - (-2)
rearrange to make it easier to solve
2x + 3x - 6 + 4 - (-2)
add like terms, negative time negative is positive
5x - 2 + 2
5x
While bolling with friends, Brandy rolls a strike in 2 out of 10 frames. What is the experimental probability that Brandy will roll a strike in the first frame of the game?
–10 – (–3) = ?????
PLEASE HELP
Answer:
-7
Step-by-step explanation:
−10−(−3)
=−10−(−3)
=−10+3
=−7
Answer:
-7
you're welcome
.
The school band decided to make pizza kits to sell for their fundraiser.
The materials cost them $
1500, and they sold the pizza kits for $8.50 a
kit. The Function below can be used to find the profit p(x), where x is
the nunuer of kits sold.
P(x) = 8.50x- 1500
If the band made a profit of $2920, how many pizza kits were sold?
a. 167 kits
b. 344 kits
C. 402 kits
d. 520 kits
Answer:
520
Step-by-step explanation:
Given that:
Profit function p(x) is :
P(x) = 8.50x- 1500
If the profit made = $2920 ; the number of pizza kits sold is :
Then p(x) = 2920
Putting p(x) = 2920 in the equation :
2920 = 8.50x - 1500
2920 + 1500 = 8.50x
4420 = 8.50x
Divide both sides by 8.50
4420 / 8.50 = 8.50x / 8.50
520 = x
Hence, number of pizza kits sold is 520
Answer:
Step-by-step explanation:
569
what is the solution of the equation?
-5=q+2
Step-by-step explanation:
-5=q+2
-5+2=q
q= -3
hope it helps.
Answer:
q = -7
Step-by-step explanation:
q+2=-5
subtract 2 from both sides
q+2-2=-5-2
q+0=-7
q=-7
Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, stay safe and wash your hands. Happy Holidays.
There are 30 marbles in a bag. 24 of them are blue. What percentage of the marbles are blue?
Answer:
80%
Step-by-step explanation:
24/30 = x/100
100/30= 3 1/3
24 x 3 1/3= 80
What value of x will make the polygon a parallelogram?
Step-by-step explanation:
In a parallelogram, opposite sides are equal.
Hence 3x = 6 and x = 2.
Help, BRAINLIEST to CORRECT answer!
Potential energy is the energy of motion.
Group of answer choices
True
False
Answer:
False
Step-by-step explanation:
Energy stored in an object is potential energy but energy in motion is kinetic energy
16 is 40% of what number
Answer:
40
Step-by-step explanation:
16 is 40 percent that means that :
32 is 80 percent
8 is 20 percent.
32 + 8 is 40 ------ 80 percent+ 20 percent =100 percent
40 is the number whose 40% is 16.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
We need to find the number whose 40% is 16.
Let us consider the number be x.
Convert 40% to the decimal by dividing with 100
40/100=0.4
Now multiply zero point four with x which gives 16
0.4x=16
Divide both sides by 0.4
x=16/0.4
x=40
Hence, 40 is the number whose 40% is 16.
To learn more on Percentage click:
https://brainly.com/question/28269290
#SPJ2
pls help asap!!!!!!!!
Answer:
I think option B is correct
generosity
hope my answer is helpful to you
plz mark me as brainlist
In a scale of an apartment,1 centimeter represents 2 3/4 feet, if the length of the kitchen is 4 1/2 cm on the scale drawing what is the actual length in feet of the kitchen
Answer:
Step-by-step explanation:
12 3/8
Simplify 3(x- 4) + 8(x+ 2).
O 11x - 4
O 11x +4
O 11x -2
Answer:
11x +4
Step-by-step explanation:
Select the correct answer.
ΔABC with vertices A(-3, 0), B(-2, 3), C(-1, 1) is rotated 180° clockwise about the origin. It is then reflected across the line y = -x. What are the coordinates of the vertices of the image?
A.
A'(0, 3), B'(2, 3), C'(1, 1)
B.
A'(0, -3), B'(3, -2), C'(1, -1)
C.
A'(-3, 0), B'(-3, 2), C'(-1, 1)
D.
A'(0, -3), B'(-2, -3), C'(-1, -1)
Answer:
the answer is d. hope this helps
Answer:
D.
A'(0, -3), B'(-2, -3), C'(-1, -1)
Step-by-step explanation:
PLATO2022 LNHS
(-6y + 8y4 − 5)(y2 − 11y)
Answer:
[tex]- 8y^6 - 88y^5-6y^3 + 71y^2 + 55y[/tex]
Step-by-step explanation:
Given
[tex](-6y + 8y^4 - 5)(y^2 - 11y)[/tex]
Required
Evaluate
[tex](-6y + 8y^4 - 5)(y^2 - 11y)[/tex]
Expand Brackets
[tex]y^2(-6y + 8y^4 - 5)- 11y(-6y + 8y^4 - 5)[/tex]
Open brackets
[tex]-6y^3 - 8y^6 + 5y^2 + 66y^2 - 88y^5 + 55y[/tex]
Collect Like Terms
[tex]- 8y^6 - 88y^5-6y^3 + 5y^2 + 66y^2 + 55y[/tex]
[tex]- 8y^6 - 88y^5-6y^3 + 71y^2 + 55y[/tex]
Convert 60 quarts to gallons. 60 qt = ? gal Will the converted amount have more or fewer units than the original?
Answer: 15 gallons .
Step-by-step explanation:
Step 1
4 quarts = 1 gallon
therefore 60 quarts = (60 quarts x 1 gallon) / 4 quarts
= 15 gallons .
Step 2-- The converted amount which is 15 has fewer units than the original which is 60.
The mean balance of all checking accounts at a bank on December 31, 2005, was $900. A random sample of 53 checking accounts taken recently from this bank gave a mean balance of $841 with a standard deviation of $190. Using the 1% significance level, can you conclude that the mean balance of such accounts has decreased during this period
Answer:
Step-by-step explanation:
Given that:
The population mean μ = 900
The sample size n = 53
The sample mean = 841
The standard deviation = 190
The level of significance = 0.01
To test the claim that the mean balance of the accounts has decreased during the period.
The null and the alternative hypothesis can be computed as:
[tex]H_o : \mu \ge 900 \\ \\ H_1 : \mu < 900[/tex]
This is a left-tailed test since the alternative is less than 900
The test statistics can be computed as:
[tex]Z = \dfrac{\overline x - \mu}{\dfrac{s}{\sqrt{n}} }[/tex]
[tex]Z = \dfrac{841 -900}{\dfrac{190}{\sqrt{53}} }[/tex]
[tex]Z = \dfrac{-59}{\dfrac{190}{7.28}}[/tex]
Z = -2.26
The p-value = P(Z < -2.26)
From the z-tables
The p-value = 0.01191
The p-value ≅ 0.012
Decision rule: To reject the null hypothesis if the significance level is > p-value.
We failed to reject the null hypothesis.
Conclusion: Thus, there is insufficient evidence to conclude that such accounts mean balance has decreased during this period.
Write the equation of a circle with a center at (-1, 2) and radius of 7. Explain how you wrote your equation.please help
Answer:
idek
Step-by-step explanation:
A cook used 6 gal of cooking oil last month. She used 15% less this
month. How much cooking oil did she use this month?
Answer:
100%-15%=85%
She used 85% of the total oil for last month
So 6gallons × 85 ÷ 100 = 5.1 gal
f(x) = x^2. What is g(x)?
Answer:
D. just sub x = 1, and if the y you get is 5 then that's the answer
What is the equation of a line with a slope of
(-2, -4)?
that passes through the point,
O A. y--d
OB. y--2
O C. y= 2x- 4
ODy--3
Answer: D. 1/2x - 3
Hope this helps :)
Which expression represents each mathematical phrase?
Drag the answer into the box to match each phrase.
add 12 and a number
subtract a number from 12
divide a number by 12
multiply 12 by a number
Answer:
Step-by-step explanation:
add 12 and a number: 12 + c
subtract a number from 12: 12 - c
divide a number by 12: c : 12 or c/12
multiply 12 by a number: 12 · c = 12c
Answer:
the sum of a number and 12= 12+p
the quotient of a number and 12= p/12
the difference between 12 and a number= 12-p
Step-by-step explanation:
find the x and y intercept and the slope of the graph of 8x-6y=24
Answer:
the x intersept is 3 the y intercept is 4
Step-by-step explanation:
x intersept : 24/8 = 3
y intersept : 24/6 =4
Solve for the missing variable(s) and SHOW ALL WORK
Answer:
x = 4
Step-by-step explanation:
From the pythagoras theorem
(x+2)^2 = x(5+x)
x^2 + 4x + 4 = 5x + x^2
x^2 + 4x + 4 - 5x - x^2 = 0
-x + 4 = 0
4 = x
Which ordered pair is a solution to the following linear system
Answer:
am confused
Step-by-step explanation:
Step-by-step explanation:
sorry Im not sure what the question is
find the product of (2x+4)(5x-3y)(8x+4y).
please help me solve this asap