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3 years ago

PLEASE SHOW YOUR WORK. HURRY I WILL MARK YOU BRAINLIEST

Mathematics

2 answers:

blagie [28]3 years ago

5 0

Answer:

The Answer is 112

Step-by-step explanation:

Hello, allow me to explain,

so the information given is $2 per chocolate bar, 24 chocolate bars were bought in 3 days, how much in 7 days

1. I divided 24 by 3 to find how many bars get sold in 1 day

24÷3=8

2. I multiply the 8 by the 2 to find how much money is made in 1 day

8×2=16

3. I multiply to find the amount of money for that week

16×7=112

Therefore my answer is $112.00 

Hope I could help!!

-Nova

Vedmedyk [2.9K]3 years ago

3 0

Answer:

Step-by-step explanation:its is b because in three days they earn 48 dollars in 6 days the earn 96 dollars in 7 days they earn 112 dollars so it is b

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-1/6 + 2/3 ( 9 + - 3/4) + - 1/2

Liono4ka [1.6K]

First simplify the section in the parenthesis.
-1/6 + 2/3(8 1/4) + -1/2
Then multiply 2/3 by 8 1/4.
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Add -1/2 to 5 1/2.
-1/6 + 5
Add 5 to -1/6.
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2 years ago

Find the equation of the line passing through the point (1, 3) and parallel to the line y--5x 2 Select one: ? ?.ys x+14 3 O E. n

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Step-by-step explanation:

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3 years ago

There are 10 rolls of film in a box and 3 are defective. two rolls are selected without replacement. what is the probability of

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P(picking one defective) = 3/10
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P(1 and 2 defective) = 3/10 x 2/9 = 6/90 = 0.066

Second method using combination:
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3 years ago

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MaRussiya [10]

I have solved the answer in the pic below, hope it helpss!!!!

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3 years ago

What number must you add to complete the square? x^2 + 2x = -1

Andru [333]

$\large\begin{array}{l} \textsf{You must add 1 to complete the square.}\\\\ \textsf{There is a very common special product: (square of a sum)}\\\\ \mathsf{(a+b)^2=a^2+2ab+b^2}\\\\\\ \textsf{Take the given equation:}\\\\ \mathsf{x^2+2x=-1\qquad(i)}\\\\\\ \textsf{The first term is a square (x squared)}\\\\ \textsf{The second term is a product of 2, x and 1.} \end{array}$

$\large\begin{array}{l}\\\\\\ \textsf{We need to find a proper value for b, so that if we add it to}\\\textsf{the left side of the equation, we get a perfect square.}\\\\ \textsf{So,}\\\\ \begin{array}{cccccccccc} \mathsf{a^2}&\!\!\!+\!\!\!&\mathsf{2}&\!\!\!\cdot\!\!\!&\mathsf{a}&\!\!\!\cdot\!\!\!&\mathsf{b}&\!\!\!+\!\!\!&\mathsf{b^2}&=\mathsf{(a+b)^2}\\\\ \mathsf{\downarrow}&&&\!\!\!\!\!&\downarrow&\!\!\!\!\!&\downarrow&&\downarrow\\\\ \mathsf{x^2}&\!\!\!+\!\!\!&\mathsf{2}&\!\!\!\cdot\!\!\!&\mathsf{x}&\!\!\!\cdot\!\!\!&\mathsf{1}&\!\!\!+\!\!\!&\mathsf{1^2}&=\mathsf{(x+1)^2} \end{array}\\\\\\ \textsf{Just by comparing the expressions above, we can conclude that}\\\textsf{b must be equal to 1, so we get a perfect square:}\\\\ \mathsf{(x+1)^2=x^2+2x+1} \end{array}$

$\large\begin{array}{l}\\\\\\ \textsf{Back to (i), adding 1 to both sides:}\\\\ \mathsf{x^2+2x+1=-1+1}\\\\ \boxed{\begin{array}{c} \mathsf{(x+1)^2=0} \end{array}} \end{array}$

$\large\begin{array}{l}\\\\\\ \textsf{If you want to solve this equation for x, you will find}\\\\ \mathsf{x+1=0}\\\\ \mathsf{x=-1}\quad\longleftarrow\quad\textsf{(solution)} \end{array}$

If you're having problems understanding the answer, try seeing it through your browser: brainly.com/question/2112248

$\large\begin{array}{l} \textsf{Any doubt? Please, comment below.}\\\\\\ \textsf{Best regards! :-)} \end{array}$

6 0

3 years ago

Read 2 more answers