Answer:
Step-by-step explanation:
6(2a + b ) +b
12a + 6b +b
12a + 7b
so answer B looks good
Answer: B) 12a+7b
Step-by-step explanation:
6(2a+b) +b
12a+6b+b
Combine like terms
12a+7b
Therefor B is correct
Need some help from the bois
Answer:
a
Step-by-step explanation:
big brain
thank you that answer is correct.
You're welcome? :3
I'm sorry if I don't understand what you are asking.
Have an amazing day, my friend!
Steve started with $250 and spent $25 per week. Chelsea started with $30 and saved $30 per week. Use x for time and y for savings. How much money would be in their savings when it was the same amount?
Answer:
the question is when are the two accounts equal... so our strategy is to find two equations and set them equal to each other
Step-by-step explanation:
weeks = w
steve's acct. = 250-25w
Chelsea's acct. = 30 +30w
so when do they equal
250-25w = 30+30w
now solve for w
250-30 = 30w +25w
220 = 55w
4 = w
In four weeks.. they will have the same
so 250- 25(4) = 150
and to check 30+30(4) = 150
so the each have $150.00 in their accts at 4 weeks
HELP please :)
a laptop costs $899 how much will it be with a sale of 24% off
Answer:
683.24
Step-by-step explanation:
Im pretty sure PLEASE give BRAINLIEST I NEED IT
All you have to do is 899 times .24 and then get that answer and subtract
Answer:
its $683.24
as we first took out 24%of $899 i.e215.76 then we subtracted it from $899
Last month, Grayson and Justine sold candy to raise money for their debate team. Justine sold 1 1/5 times as much candy as Grayson did. If Grayson sold 2/3 of a box of candy, how many boxes of candy did Justine sell?
Answer: 4/5 of a box of candy
Step-by-step explanation:
Justine sold 1¹/₅ times the ²/₃ of a box of candy that Grayson sold.
Justin sold;
= 1¹/₅ * ²/₃
= 6/5 * 2/3
= 12/15
= 4/5 of a box of candy
1. Find the common factors of the given terms.
Step-by-step explanation:
[tex](ii)\\24y=\boxed{2}\cdot\boxed{2}\cdot\boxed{2}\cdot3\cdot\boxed{y}\\16xy=\boxed{2}\cdot\boxed{2}\cdot\boxed{2}\cdot2\cdot\boxed{y}\\\\GCF(24x;\ 16xy)=\boxed{2}\cdot\boxed{2}\cdot\boxed{2}\cdot\boxed{y}=8y[/tex]
[tex](iii)\\14p^2=2\cdot\boxed{7}\cdot\boxed{p}\cdot p\\\\7pq=\boxed{7}\cdot\boxed{p}\cdot q\\\\28p=\boxed{7}\cdot2\cdot2\cdot\boxed{p}\\\\GCF(14p^2;\ 7pq;\ 28p)=\boxed{7}\cdot\boxed{p}=7p[/tex]
[tex](v)\\6a^3b^2c=\boxed{2}\cdot\boxed{3}\cdot\boxed{a}\cdot a\cdot a\cdot\boxed{b}\cdot b\cdot\boxed{c}\\\\24ab^3c^4=\boxed{2}\cdot2\cdot2\cdot\boxed{3}\cdot\boxed{a}\cdot\boxed{b}\cdot b\cdot b\cdot\boxed{c}\cdot c\cdot c\cdot c\\\\12abc=\boxed{2}\cdot 2\cdot\boxed{3}\cdot\boxed{a}\cdot\boxed{b}\cdot\boxed{c}\\\\GCF(6a^3b^2c;24ab^3c^4;\ 12abc)=\boxed{2}\cdot\boxed{3}\cdot\boxed{a}\cdot\boxed{b}\cdot\boxed{c}=6abc[/tex]
[tex](vi)\\16x^3=\boxed{2}\cdot\boxed{2}\cdot\boxed{2}\cdot2\cdot\boxed{x}\cdot\boxed{x}\cdot x\\\\-40x^2=-\boxed{2}\cdot\boxed{2}\cdot\boxed{2}\cdot5\cdot\boxed{x}\cdot\boxed{x}\\\\32x^4=\boxed{2}\cdot\boxed{2}\cdot\boxed{2}\cdot2\cdot2\cdot\boxed{x}\cdot\boxed{x}\cdot x\cdot x\\\\GCF(16x^3;\ -40x^2;\ 32x^4)=\boxed{2}\cdot\boxed{2}\cdot\boxed{2}\cdot\boxed{x}\cdot\boxed{x}=8x^2[/tex]
Write the following using index notation:
a) 2 x 2 x 2
b)
3 x 3 x 3 x 3 x 3
c) 4 x 4 x 4 * 5 * 5
d)
9 x 7 x 9 x 9 x 7 x 9
Answer:
Here you go
Step-by-step explanation:
sorry for the bad handwriting
The required equivalent expressions using index notation, are follows: a) 2 x 2 x 2 = 2³, b) 3 x 3 x 3 x 3 x 3 = 3⁵, c) 4 x 4 x 4 x 5 x 5 = 4³ x 5² and d) 9 x 7 x 9 x 9 x 7 x 9 = 7² x 9⁴.
What is the expression?Expressions are defined as mathematical statements that have a minimum of two terms containing variables or numbers.
The expressions are given in the question, as follows:
a) 2 x 2 x 2
b) 3 x 3 x 3 x 3 x 3
c) 4 x 4 x 4 x 5 x 5
d) 9 x 7 x 9 x 9 x 7 x 9
We have to determine the equivalent expression using index notation.
As per the question, the required solution would be as:
a) 2 x 2 x 2 = 2³
b) 3 x 3 x 3 x 3 x 3 = 3⁵
c) 4 x 4 x 4 x 5 x 5 = 4³ x 5²
d) 9 x 7 x 9 x 9 x 7 x 9 = 7² x 9⁴
Learn more about the expression here :
brainly.com/question/21751419
#SPJ2
What is cos theta when sin theta = sqrt 2/3
Answer:
Value of cosθ is ±√7/3 .
Step-by-step explanation:
According to the Question , value of :
[tex]\red{\implies sin\theta = \dfrac{\sqrt2}{3}} [/tex]
And , we know the identity of sine and cosine as ,
[tex]\boxed{\pink{\sf\implies sin^2\theta + cos^2\theta = 1} }[/tex]
Using , this identity we have ;
[tex]\implies sin^2\theta + cos^2\theta = 1 \\\\\implies \bigg( \dfrac{\sqrt2}{3}\bigg)^2 + cos^2\theta = 1 \\\\\implies \dfrac{2}{9} + cos^2\theta = 1 \\\\\implies cos^2\theta = 1 - \dfrac{2}{9} \\\\\implies cos^2\theta = \dfrac{9-2}{9} \\\\\implies cos\theta = \sqrt{\dfrac{7}{9}} \\\\\underline{\boxed{\blue{\bf \implies cos\theta = \pm \dfrac{\sqrt 7 }{3}}}}[/tex]
Now , here since θ is in 2nd quadrant and in 2nd quadrant cos is negative . Hence ,the value of cos will be :
[tex]\boxed{\orange{\bf \implies cos\theta =-\dfrac{\sqrt7}{3}}}[/tex]
Which of the following situations are equal to 6? Select all that apply.
A) 30% of 10
B) 60% of 15
C) 50% of 12
D) 20% of 30
E) 75% of 8
Answer:
C)
D)
E)
Step-by-step explanation:
30% of 10 = [tex]\frac{30}{100}*10 = 3 \neq 6\\\\[/tex]
B) 60% of 15 = [tex]\frac{60}{100}*15 = \frac{6}{10}*15=\frac{3}{5}*15=3*3 = 9 \neq 6\\[/tex]
c) 50% of 12 = [tex]\frac{50}{100}*12=\frac{1}{2}*12=6\\\\[/tex]
D) 20% of 30 = [tex]\frac{20}{100}*30=\frac{1}{5}*30= 6[/tex]
E)75% of 8 = [tex]\frac{75}{100}*8 = \frac{3}{4}*8=3*2 = 6[/tex]
PLEASE HELP! (or i die tomorrow)
Answer:
16. (0 , -6) 17. (0 , 4) 18. (3, -9)
Step-by-step explanation:
Answer:
A = (0,-6)
B = (0,4)
C = (3,-9)
Step-by-step explanation:
Take the middle number of the x-coordinates.
A- The number in between 0 and 0 is 0
B- The number in between 2 and -2 is 0
C- The number in between -3 and 9 is 3
Take the middle number of the y-coordinates.
A- The number in between 0 and -12 is -6
B- The number in between 9 and -1 is 4
C- The number in between -3 and -15 is -9
You can also use the midpoint formula; M=(x(1) + x(2))/2 , (y(1) + y(2))/2
Salvador reads 13 books from the library each month for y months in a row. Write an expression to
show how many books Salvador read in all. Then, find the number of books Salvador read if he read
for 5 months.
Answer:
a lot
Step-by-step explanation:
A model for a company’s revenue from selling a software package is R(p)=-2.5p^2+600p
Complete question is;
A model for a company's revenue from selling a software package is R = -2.5p² + 500p, where p is the price in dollars of the software. What price will maximize revenue? Find the maximum revenue.
Answer:
Price to maximize revenue = $100
Maximum revenue = $25000
Step-by-step explanation:
We are told that:
R = -2.5p² + 500p, where p is the price in dollars of the software.
The maximum revenue will occur at the vertex of the parabola.
Thus, the price at this vertex is;
p = -b/2a
Where a = - 2.5 and b = 500
Thus:
p = -500/(2 × -2.5)
p = -500/-5
p = 100 in dollars
Maximum revenue at this price is;
R(100) = -2.5(100)² + 500(100)
R(100) = -25000 + 50000
R(100) = $25000
Someone please help me, what is 13x + 5 - 8x - 3?
Answer:
5x
2
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
find the value of variable y using appropriate identity (y-5)2-(y-3)2=12
Answer:
[tex]\\\qquad\quad\displaystyle\sf {:}\longrightarrow (y-5)2-(y-3)2=12 [/tex]
[tex]\\\qquad\quad\displaystyle\sf {:}\longrightarrow 2y-10-2y-6=12[/tex]
[tex]\\\qquad\quad\displaystyle\sf {:}\longrightarrow 2y-2y-10-6=12 [/tex]
[tex]\\\qquad\quad\displaystyle\sf {:}\longrightarrow -16=12 [/tex]
[tex]\\\qquad\quad\displaystyle\sf {:}\longrightarrow y's\:value\:is\:undefined [/tex]
Answer:
[tex] {(y - 5)}^{2} - {(y - 3)}^{2} = 12 \\ = ( {y}^{2} - 10y + 25) - ( {y}^{2} - 6y + 9) = 12 \\ = {y}^{2} - 10y+ 25 - {y}^{2} + 6y - 9 = 12 \\ = - 4y + 16 = 12 \\ = - 4y = 12 - 16 \\ = - 4y = - 4 \\ = y = \frac{ - 4}{ - 4} \\ = \boxed{y = 1}[/tex]
y=1 is the right answer.There are 42 boys in the sixth grade. The number of girls in the sixth grade is 35. Lonnie says that
means the ratio of the number of boys in the sixth grade to the number of girls in the sixth grade is
16:5.
Is Lonnie correct? Show why or why not.
Answer:
Lonnie is incorrect because the ratio is 6:5 and not 16:5.
Step-by-step explanation:
First, create a ratio comparing the number of boys to girls:
42:35
This can be simplified since both numbers are divisible by 7:
42:35
Divide each number by 7:
6:5
So, Lonnie is incorrect because the ratio is 6:5 and not 16:5.
Answer:
incorrect i think
Step-by-step explanation:
the ration would be 6:5
what is log7 12+log7m-log7n?
Hello!
[tex]\large\boxed{\log_{7}{(\frac{12m}{n}})}[/tex]
Use the log properties to simplify:
log (a) + log (b) = log (a · b)
log (a) - log (b) = log (a ÷ b)
Therefore:
[tex]log_{7}12 + log_{7}m - log_{7}n\\\\= log_{7}(12 * m / n}\\\\log_{7}{(\frac{12m}{n}})[/tex]
45 girls tried out for the field hockey team. 20% of the girls who tried out did not make the team. How many girls did not make the team?
Answer:
9 girls
Step-by-step explanation:
total girls tried out = 45
did not make the team
= 20% of the girls
= 20/100 × 45
= 9 girls
A VCR and TV were bought for 78.000 each. The shopkeeper made
loss of 4% on the VCR and a profit of 8% on the TV. Find the gain or loss
percent on the whole transaction.
Answer:
Profit % is 1.94% .
Step-by-step explanation:
The CP of both VCR and TV were same that is Rs 78,000 . So ,
[tex] => CP \ of \ the \ buyer \ = \ Rs78,000 \times 2 = Rs 156,000 [/tex]
As per Question , on one he made a loss of 4% and profit of 8% on the other .
And , the net SP would be ,
[tex] => Total \ SP \ = \ \dfrac{96}{100}\times Rs 78,000 + \dfrac{108}{100}\times Rs 78,000 \\\\=> Total\ SP = Rs 74,800 + Rs 84240 \\\\\boxed{\red{\bf => Total \ SP= Rs 159,040 }}[/tex]
So , here clearly SP > CP . So , there's a profit .Hence profit % would be :-
[tex] => Profit \% = \dfrac{ SP - CP }{CP}\times 100 \\\\=> Profit \% = \dfrac{Rs 159,040-Rs156,000}{Rs156,000}\times 100 \\\\=> Profit\% = \dfrac{3040}{156000}\times 100 \\\\\underline{\blue{\bf => Profit\% = 1.94 \% }}[/tex]
Find the 89th term of the arithmetic sequence -16, -3, 10, ...
Answer:
uhm, i'm pretty sure it would be 1,128 because between each term is 13 units, and the first three terms are given. and 89-3 is 86. and 86*13=1,118. since the last term was 10, you need to add 10 to that, making your answer 1,128
100 middle school students take a survey that asked him about their food preferences 37 out of 100 students said they prefer pineapples to peaches how would you write this amount as a percent
Answer:
It would be 37%
1 student equals 1%.
Hope this helps! Have an awesome day <3
Can somebody please help me with this question please?
Answer:
AB=AD
4x=x+15
3x=15
x=15/3
x=5
Answer:
x = 5
Step-by-step explanation:
In a kite, two disjoint pairs of sides are congruent, then
AB = AD , that is
4x = x + 15 ( subtract x from both sides )
3x = 15 ( divide both sides by 3 )
x = 5
frank decides to run 5 days a week. the first week he runs 5/6 mile each day. the next week, he runs 20% farther than the first week. the third week he runs 20% farther than the previous week. how many total miles did frank run in the 3 weeks?
Answer:
it is approximately 3.23333333
hope that helped and plz mark brainliest :D
(x-4)/(2x+1)-3 can you help me with this question
Answer:
[tex]\frac{(x - 4)}{(2x + 1)} - 3[/tex] [tex]=[/tex] [tex]\frac{-7x- 7}{3x + 1}[/tex]
Step-by-step explanation:
Given
[tex]\frac{(x - 4)}{(2x + 1)} - 3[/tex]
Required
Solve
Express 3 as a fraction
[tex]\frac{(x - 4)}{(2x + 1)} - \frac{3}{1}[/tex]
Take LCM
[tex]\frac{x - 4 - 3(2x + 1)}{3x + 1}[/tex]
[tex]\frac{x - 4 - 6x - 3}{3x + 1}[/tex]
Collect Like Terms
[tex]\frac{x - 6x- 4 - 3}{3x + 1}[/tex]
Simplify like terms
[tex]\frac{-7x- 7}{3x + 1}[/tex]
Hence:
[tex]\frac{(x - 4)}{(2x + 1)} - 3[/tex] [tex]=[/tex] [tex]\frac{-7x- 7}{3x + 1}[/tex]
n x 3 = 24
HELP Please answer in full steps.
Answer:
n=8
Step-by-step explanation:
What times 3 is 24?
In other words, 24 divided by 3, which is 8
Easy math question. Giving branliest.
Answer:
D
Step-by-step explanation:
On Saturday, a local hamburger shop sold a combined total of 596 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the
number of hamburgers sold. How many hamburgers were sold on saturday?
Answer:
198 hamburgers
Step-by-step explanation:
Because the additive inverse of multiplication is division and since the cheeseburger are three times the number of hamburgers you should divide by three to get how many hamburgers were sold. Hope this helps
Find the cube root of 512
Answer:
8
Step-by-step explanation:
[tex] \sqrt[3]{512} = (512) {}^{ \frac{1}{3} } = 8[/tex]
Using the graph below solve the quadratic equation: x²+x-6- 0
Answer:
B. x = -3 or x = 2
Step-by-step explanation:
The equation of line v is y = -x + 9. Line w, which is perpendicular to line v, includes the
point (2, 3). What is the equation of line w?
Answer:
y=x+1
Step-by-step explanation:
In order to find the slope that is perpendicular to a given line, you have to take the fraction form (-1/1), flip it (1/-1), and give it an opposite sign (1/1). Now since we now know our slope we can draw y=x to find what do we have to add. Since y=x crosses (2,2), we know we have to add 1 to the equation in order to bring it to (2, 3).
Divisibility Am I Missing Something ? Or Am I Right Need Help ASAP
Answer:
the ones I will write doles not go with 180
so remove them ok
they are 3 and 9
if wrong correct me plsssssss
Mark me brainliest plsss
I will always help you understanding your assingments
have a great day
#Captainpower:)