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Yuki888 [10]
2 years ago
8

Please Help I Don't Understand!!!

Mathematics
2 answers:
Llana [10]2 years ago
7 0

Answer:

14.5

Step-by-step explanation:

\frac{2}{7}  =  \frac{5}{m + 3}

2(m + 3) = 7 \times 5

2m + 6 = 35

2m = 35 - 6

2m = 29

m = 14.5

Wittaler [7]2 years ago
7 0

Answer:

m = 14.5

Step-by-step explanation:

\frac{2}{7} = \frac{5}{m+3} ( cross- multiply )

2(m + 3) = 35

2m + 6 = 35 ( subtract 6 from both sides )

2m = 29 ( divide both sides by 2 )

m = 14.5

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Answer:

CD = 10

Step-by-step explanation:

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3 years ago
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Your family goes to a Southern-style restaurant for dinner. There are 6 people in your family.
Viktor [21]

Answer:

Number of people who order chicken dinner = 1

Number of people who order the steak dinner = 5

Step-by-step explanation:

Let

x = number of people who order chicken dinner

y = number of people who order the steak dinner

x + y = 6 (1)

14x + 17y = 99 (2)

From (1)

x = 6 - y

Substitute into (2)

14x + 17y = 99 (2)

14(6 - y) + 17y = 99

84 - 14y + 17y = 99

- 14y + 17y = 99 - 84

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y = 15/3

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x + y = 6 (1)

x + 5 = 6

x = 6 - 5

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Number of people who order the steak dinner = 5

4 0
3 years ago
There is an infinite number of ways to represent 1 on the number line. In the space below, write at least four expressions multi
tatuchka [14]

Answer:

1) ok, we know that if we divide one number by the same number, the solution is 1 ; this is: a/a = 1

so we could write something as:

3 = 3*1 = 3*(5/5) = (3*5)/5 = 15/5

so 3 = 15/5

this is especially useful when working with addition of fractions.

2) this is really useful if you have a square root in the denominator.

for example : \frac{1}{\sqrt{2} }  = \frac{1}{\sqrt{2} } *\frac{\sqrt{2} }{\sqrt{2} }  = \frac{\sqrt{2} }{2}

3) you also could do this in the next way:

3 = 3*1 = 3*(7/7) = 3*(3+4)/7= 9/7 + 12/7

where i splitted the 7 into 3 +4, this relation could be useful sometime.

4) if you do the difference between some number and the prior number; you get one; this is : (5 -4) =1

then: 3= 3*1 = 3*(5 - 4) = 15 - 12

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4 years ago
HELPP!!! Will give Brainliest!!!
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the local maximum is at x = -2.2 and has a value of 72.576


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Estimate the product of 23.725 ×6.25. then find the product why is it a good idea to estimate first
LuckyWell [14K]
It's 154.687 because first you have to line up the dot which is call and. And you going to add your place holder which is a 0 next to the 2 and the you times
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