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2 years ago

12

The ratio of a green pepper plants to red pepper plants in adelines garden is 3 tp 5. if there are 20 red peppers plants, how ma

ny green pepper lnats are there?

1 answer:

ale4655 [162]2 years ago

4 0

3 is to 5 as x is to 20
5 goes into 20 4 times so 3(4) gives you x
and x=12

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Let x² + 15x = 49 . What values make an equivalent number sentence after completing the square? Enter your answers in the box

Pavlova-9 [17]

Answer:

Step-by-step explanation:

15/2 = 7.5 and (7.5)^2 = 56.25 so

x^2 + 15x + 56.25 = 49 + 56.25

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2 years ago

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Answer:

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3 years ago

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2 years ago

bryan has some 3 cent stamps and some 4 cent stamps. what is the least number of stamps he can combine so the value of the stamp

SashulF [63]

Answer:

The least number of stamps required is $9$

Step-by-step explanation:

Let the number of $3$ cent stamps be $x$ and $4$ cent stamps be $y$

We have

$3x+4y=33$

The minimum number is obtained when more $4$ cent stamps are used

Here $y$ cannot be greater than $8$ since $\frac{33}{4}$

Substitute $y=8$

$3x+4\times 8=33\\\\3x=1\\\\x=\frac{1}{3}$

Not possible since $x$ is not a fraction

Substitute $y=7$

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Not possible since $x$ is not a fraction

Substitute $y=6$

$3x+4\times 6=33\\\\3x=9\\\\x=\frac{9}{3}\\\\=3$

Possible

Hence minimum number of stamps is

$=x+y\\\\=3+6\\\\=9$

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