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miss Akunina [59]
3 years ago
8

A grocery store charges $3.00 for 4 two-liter bottles of lemonade. David has $12.00 in his wallet. Since David is having a party

, he puts 20 two-liter bottles in his grocery cart. Will David have enough money? Explain how you arrived at your answer.
Mathematics
1 answer:
nevsk [136]3 years ago
8 0
No because he will be $3.00 short.
So it is $0.75 a bottle. So then you multiply $0.75 by 20. You get $15.00
So David will not have enough in his wallet.
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4m-2(3+5m) in standard form
NNADVOKAT [17]
Simplified: -6m-6
Factored: 6(m+1)
3 0
3 years ago
Which strategy would you choose to expand (x+11)(2x+3) and write an equivalent expression
Vlad1618 [11]

Answer:

Step-by-step explanation:

Given the expression (x+11)(2x+3)

We want to expand it and write equivalent expression

Generally if we want to expand an expression we will take one of the expression in one bracket and multiply with the other bracket and then take the other expression and multiply it with the other

E.g, (a+b) × (c + d)

Then, we take a × (c+d) and also b × (c+d)

We can do it the other way round too and it will give the same results.

So, applying this to the given expression

(x+11)(2x+3)

x(2x+3) + 11(2x+3)

2x² + 3x + 22x + 33

2x² + 25x + 33

Then, the equivalent expression is 2x² + 25x + 33

(x + 11)(2x + 3) = 2x² + 25x + 33

5 0
3 years ago
Emily wants to hang a painting in a gallery. The painting and frame must have an area of 31 square feet. The painting is 5 feet
seropon [69]
Area=legnth times width=31
the frame must go around the frame with equal legnth, x
so
the total area (meaning the frame +picture) is 5+x by 6+x
31=(5+x)(6+x)
expand
31=30+11x+x^2
minus 31 both sides
0=-1+11x+x^2
x^2+11x-1=0

answer is third one
6 0
3 years ago
Read 2 more answers
Why is the answer B? Plz explain.
MAVERICK [17]

You know that each person's share is n dollars, and there are m people in total.

So, if each of the m people pays n dollars, the total rent is mn dollars.

For example, if you know that 7 people share the rent, and each of them pays 5 dollars, then the total rent is 7\cdot 5 = 35 dollars.

So, if the total of mn dollars is shared between m^2 people, each of them will pay

\cfrac{mn}{m^2} = \cfrac{n}{m} \text{ dollars}

6 0
3 years ago
Read 2 more answers
3.) (4 x 9 - 21) \ 3+6^2
nignag [31]

Answer:

41

Step-by-step explanation:

Given Expression:

(4 x 9 - 21) \ 3+6^2

Multiply 4 and 9 to get 36.

36 - 21 / 3 + 6^2

Subtract 21 from 36 to get 15.

15/3 + 6^2

Divide 15 by 3 to get 5.

5+6^2

Calculate 6 to the power of 2 and get 36.

5+36

Add 5 and 36 to get 41.

41

3 0
3 years ago
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