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Molodets [167]
3 years ago
5

Pls help me answer this question

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
5 0

Answer:

c

Step-by-step explanation:

10*10=100

100-78.54=21.46

so rounded answer is c or 21.5

goodluck on your test

77julia77 [94]3 years ago
4 0

Answer: Hello Luv......

C. 21.5

Step-by-step explanation:

Hope this helps.

Mark me brainest please.

Anna ♥

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3 years ago
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Which is an equation of a direct proportion?<br><br> A. =1/3−2<br> B. =3/<br> C. =−3+4<br> D. =−3
katrin [286]

Answer:

<em>D. y=-3x</em>

Step-by-step explanation:

<u>Direct Proportion</u>

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

\displaystyle \frac{y}{x}=k

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4 0
3 years ago
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Please please help!!!!!!
Zarrin [17]

Answer:

total area=lb=

where l=8x-10

b=2x+2x=4x

area=4x(8x-10)=32x^2-40x..........(1)

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area of pool=lb=2x(6x-14)=12x^2-28x

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A=32x^2-40x-x^2-12x^2+28x=(19x^2-12x) feet.....ans

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3 years ago
Sofia wants to determine the width of a lake that corresponds to segment DE in the diagram. She marks segment BC because she kno
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Answer:

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sorry im too late lol

5 0
3 years ago
you are a school photographer taking individual and class pictures for 2 classes of 21 students each on average each individual
uysha [10]
  1. Answer: Approximately 146 minutes (or if you need the simplified version the answer is 2 hours and 26 minutes).  Step-by-step explanation: Step 1. Two classes of 21 students. To calculate that you would multiply 21 by 2. 21*2=42 Step 2. So now we know you need 42 individual pictures. If they each take 3 minutes to take you need to multiply 42 by 3. 42*3=126. So now you know it’ll take 126 minutes to take all the individual pictures. Step 3. Now, there are 2 classes of people and it takes 10 minutes to take each class picture. So do calculate that you need to multiply 10 by 2. 10*2=20. So it’ll take 20 minutes to take both class pictures. Step 4. Now we know it’ll take 126 minutes to take all the individual photos and 20 minutes to take the class photos. Now to calculate the total amount of time it’ll take to take all the photos you need to add 20 to 126.  126+20=146. So, it’ll take 146 minutes to take all the photos. Step 5. (You can skip this step if no simplification is needed in your problem) So, we all know there is 60 minutes in an hour so we’ll divide 146 by 60. 146/60=2.43. So, now we know it’ll take 2.43 hours to take all the photos. 2.43 hours is 2 hours and 26 minutes.  I hope this helps!
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3 years ago
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