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kykrilka [37]
3 years ago
13

A chef bought 3 bags of beans. Each bag contains 1 2/5 kilograms of beans. How many kilograms of beans did she buy?

Mathematics
1 answer:
DENIUS [597]3 years ago
6 0

Answer: 4.2 kilograms

Step-by-step explanation:

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What is x in this equation- 3/2x-7=-11
Sunny_sXe [5.5K]

3/2x-7=-11


We move all terms to the left:


3/2x-7-(-11)=0



Domain of the equation: 2x!=0


x!=0/2


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x∈R



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3 0
2 years ago
David cast a shadow 42" long at the same place and time in Emma cast a shadow 28" long. David is 66" tall. What is Emma's height
Nikolay [14]

ANSWER

Emma is 44" tall

EXPLANATION

We have that David cast a shadow 42 inches long and he is 66 inches tall.

At that same place and time, Emma cast a shadow of 28 inches.

Since they are at the same spot and time, we can conclude that the ratio of their height to shadow must be the same.

Let Emma's height be x.

The ratio of David's shadow to height is:

42 : 66 or 42 / 66

For Emma, it is:

28 : x or 28 / x

That means that:

\begin{gathered} \frac{42}{66}\text{ = }\frac{28}{x} \\ \text{Solve for x by cross-multiplying:} \\ 42\cdot\text{ x = 66 }\cdot\text{ 28} \\ x\text{ = }\frac{66\cdot\text{ 28}}{42} \\ x\text{ = 44 inches} \end{gathered}

So, Emma is 44" tall.

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9 months ago
The domain for f(x) and g(x) is the set of all real numbers.
bija089 [108]
I am currently dong the same thing, if you go to symbolab.com then im pretty sure you'll be helped. ;)
3 0
3 years ago
Read 2 more answers
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