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taurus [48]
3 years ago
5

Laticia randomly selected 25% of the seventh-grade students in her school an asked them their favorite season.Of the students su

rveyed,51 chose summer as their favorite season. Based on the data, what is the most reasonable prediction of the number of seventh-grade students in her school who would choose summer as their favorite season.
Mathematics
1 answer:
Afina-wow [57]3 years ago
3 0
About 204 students would choose summer , I found this because 25% is one quarter of a whole and to get the whole you multiply by four so take 51 and multiply by four to get 204
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What’s the percentage of 17/28
ad-work [718]

Answer:

60.7%

Step-by-step explanation:

Use division to convert the fraction to a decimal: 17/28 = 17 ÷ 28 = 0.607

Multiply by 100 to get percent value: 0.607 × 100 = 60.7%

3 0
3 years ago
if you had 75 bars of chocolate but you gave 60 away, what is the percentage of thw amount you gave away?
mars1129 [50]
Total chocolate bars: 75
Chocolate bars given away: 60

60/75 = 0.8 or 80%
7 0
3 years ago
Please help being timed for test !
balu736 [363]

Answer:

I think it B or C but hope I can help :)

Step-by-step explanation:

3 0
3 years ago
The sum of two numbers is 3.1. Twice the large number is 7 more than 3 times the smaller number. What are the numbers?
Degger [83]

Let the two numbers be x and y where x is greater than y.

So;

x + y = 3.1 ... (i)

2x - 3y = 7 ... (ii)

This forms a set of simultaneous equations (i) and (ii)

Solving the simultaneous equations by elimination;

We multiply (i) by 2 and (ii)  by 1 to get:

2x + 2y = 6.2 ... (i)

2x - 3y = 7 ... (ii)

Subtracting (i) - (ii) we get;

5y = -0.8

y = -0.8/5 = -0.16

x = 3.1 - -0.16 = 3.26

The numbers are 3.26 and -0.16.


7 0
3 years ago
A farmer is building a fence to enclose a rectangular area consisting of two separate regions. The four walls and one additional
Vlad [161]

Answer:

The maximal area will be "1093.5 square feet".

Step-by-step explanation:

Let,

Length = L feet

Breadth = b feet

Given Total fencing = 162 feet

According to the question,

 (2\times L)+(3\times b)=162

              2L+3B=162

                         L=\frac{162-3b}{2}

                         L=81-\frac{3}{2}b

As we know,

 Area=Length\times breadth

          =(81-\frac{3}{2}b)\times b

          =81b-\frac{3}{2}b^2

Now, we required to decrease or minimize the are. So for extreme points:

 \frac{dA}{db}=0

or,

 \frac{dA}{dB}=\frac{d}{db}(81-\frac{3}{2}b^2 )=0

       81-\frac{3}{2}\times 2\times b=0

                            b=\frac{81}{3}

                            b=27 \ feet

Now on putting the value of b, we get

 l=81-\frac{3}{2}\times 27

   =81-40.5

   =40.5 \ feet\\

So that the dimensions will be:

⇒  40.5 feet by 27 feet

Therefore when the dimension are above then the area will be:

=  81\times 27-\frac{3}{2}\times 27\times 27

=  2187-\frac{3}{2}\times 729

=  2187-1093.5

=  1093.5 \ square \ feet

6 0
3 years ago
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