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netineya [11]
3 years ago
8

A particular beach is eroding at a rate of 4 centimeters per year. A realtor converts this rate to millimeters per day. Which ex

pression, when evaluated, results in the correct units and numerical value?
Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
6 0
Hold on ill answer it


Anastasy [175]3 years ago
6 0

Answer:

\frac{4 cm}{1 year}\times \frac{10mm}{1 cm} \times \frac{1year}{365 days}

Step-by-step explanation:

A particular beach is eroding at a rate of 4 centimeters per year.

So, if we want to calculate it as per day we will do:

The expressions are not given, but the conversion rates are standard, so there can be only one answer.

The correct answer is =

\frac{4 cm}{1 year}\times \frac{10mm}{1 cm} \times \frac{1year}{365 days}

= 0.109 mm per day

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A bookkeeper bought 2,000 exercise book distributed 200 books to the student from poor economic background as donation .he sold
Andrews [41]

Books left=2000-200=1800

ATQ

\\ \sf\longmapsto 1800x+10=0.08x

\\ \sf\longmapsto 1800x-0.08x=-10

\\ \sf\longmapsto x(1800-0.08)=-10

\\ \sf\longmapsto x(1799.92)=-10

\\ \sf\longmapsto x=|\dfrac{10}{1799.92}|

\\ \sf\longmapsto x=0.005

Now

\\ \sf\longmapsto CP=0.005(2000)=10

6 0
2 years ago
Which equation represents a line which is parallel to the line 3x - y = 6?​
DochEvi [55]

Step-by-step explanation:

We just have to remember the line equation <u>y=mx+b</u> , then place the given equation into this form (y= -3x-6).

Remember that (m) is your slope. So, to find a parallel line, they must have an equal slope. Check the other equations and see which one had a slope of -3. The answer C also has a slope of -3. So those lines would be parallel.

6 0
3 years ago
Systems with three variables. please help
kirza4 [7]
X= 6
Y= 0
Z= -2

CHECK
3x + y -2z =22
3(6) + 0 -2(-2) =22
18 + 0 +4= 22
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3 0
2 years ago
63 first-year teachers and 27 experienced teachers attended a school staff meeting. What percentage of the teachers in the meeti
nexus9112 [7]

Answer: 70%

Step-by-step explanation:

Step 1:

Total number of teachers = 63 + 27

                                            =  90

Step 2:

The percentage of the teachers in the meeting were first-year teachers:

(63 ÷ 90) × 100 = 70%

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2 years ago
Martin knows that the relationship between the number of
sp2606 [1]

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m = 28g

Step-by-step explanation:

8 0
3 years ago
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