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Oxana [17]
2 years ago
11

A commercial laundry charges $5.25 per load. You have $31.50. Write and solve an inequality to find the greatest number of loads

of laundry you can do. A. 5.25w ≤ 31.5; w ≤ 26.25 B. w ≤ 31.5 − 5.25; w ≤ 26.25 C. 5.25w ≤ 31.5; w ≤ 6 D. 5.25 + w ≤ 31.5; w ≤ 6
Mathematics
1 answer:
4vir4ik [10]2 years ago
5 0

Charges per load = $5.25

Total money = $31.50

As the situation says that charges are 5.25 and one has a total money of 31.50 so lets suppose the total load one has be 'w'

so equation becomes:

5.25w\leq31.50

solving it we get, w\leq6

So, option C is the correct answer.


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The 8th term of a GP is -7/32 find its common ratio if its first term is 28
Ugo [173]
<h2>Common ratio = -1/2</h2>

Step-by-step explanation:

       \text{8}^{th} term of a Geometric progression is given as \dfrac{-7}{32}. The first term is given as 28.

       Any general Geometric progression can be represented using the series a,ar,ar^{2},ar^{3},ar^{4}...\text{ }ar^{n-1}.

The first term in such a GP is given by a, common ratio by r, and the n^{th} term is given by ar^{n-1}.

       In the given GP, a=28;t_{8}=ar^{7}=\dfrac{-7}{32}\\\\28r^{7}=\dfrac{-7}{32}\\\\r^{7}=\dfrac{-1}{128}\\\\r=\dfrac{-1}{2}

∴ Common ratio is \dfrac{-1}{2}.

5 0
2 years ago
Order the expressions from least value to greatest value.
trasher [3.6K]
You have to answer all of the equations first

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2 1/4 + (-1 2/5) first find a common denominator, which would be 20

9/4= 45/20
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since adding a negative is the same as subtracting a positive, you would subtract 45 and 28 which is 17.

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turn the fraction into a decimal by dividing the top number by the bottom number, so 17/20 = 0.85


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-2 3/5 - (-1 2/5)

make them into improper fractions which is -13/5 and -7/5

it stays negative, so the answer is -6/5 or -1.2

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Solution:

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2.Tan^{-1}4=Tan(\frac{720}{\pi }})

=Tan^{-1} (229°54'32")

=75.963757 Degrees

3. Cos^{-1}(0.1)=Cos^{-1}(\frac{18}{\pi})=Cos^{-1}(\frac{63}{11})=

= Cos^{-1}(5°43'38")

= 84.26083 Degrees


6 0
2 years ago
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D 7
A million apologies if I’m wrong half of my brain is still on vacation!
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2 years ago
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