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Anvisha [2.4K]
4 years ago
7

The length of a rectangular field is 3 more than twice the width. the farmer would like to divide the field into four equal encl

osed pens for his pigs and chickens. write a polynomial expression to describe the amount of fencing he would need.
Mathematics
1 answer:
nika2105 [10]4 years ago
7 0
Assume w is the width. the length is 3*2w
To fence the whole outside of farm, he needs:
2(w+6w)=14w meters
Also he needs one width and one length for the enclosed pens. Therefore, the total amount of fencing he would need:
14w+w+6w=21w meters
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Abdul drove 320 miles using 12 gallons of gas. At this rate, how many gallons of gas would he need to drive 296 miles?
kakasveta [241]
He would need 11.1 gallons of gas if he was/would drive 296 miles.

12 divided by 320 = .0375

.0375 x 296 = 11.1 Gallons of Gas needed to drive the distance.


8 0
3 years ago
Read 2 more answers
How much times dose 30 divided by 900
galina1969 [7]

Answer:

30

Step-by-step explanation:

900 dived by 30

check your work

30 times 30=900

another way is

3 times 3 =9 then add the two zeros froms the two 30's

900

5 0
4 years ago
Read 2 more answers
-4 square divided by 8
arlik [135]

Answer:

2

Step-by-step explanation:

If you square -4 it equals 16 and if you take that number and divibe it by 8 you get 2.

3 0
4 years ago
Need help with this problem:
Nitella [24]

Answer:

<em>Henson: 3x + y = 163</em>

<em>Garcia: 2x + 3y = 174</em>

<em>adult ticket price: $45</em>

<em>child ticket price: $28</em>

Step-by-step explanation:

Henson Family:

3 adults + 1 child; total $163

3x + y = 163

Garcia Family:

2 adults + 3 children; total $174

2x + 3y = 174

Now we solve the system of equations.

Solve the first equation (Henson Family) for y.

y = 163 - 3x

Substitute 163 - 3x for y in the second equation (Garcia Family).

2x + 3<em>y</em> = 174

2x + 3(<em>163 - 3x</em>) = 174

2x + 489 - 9x = 174

-7x + 489 = 174

-7x = -315

x = 45

Now substitute 45 for x in the first original equation and solve for y.

3x + y = 163

3(45) + y = 163

135 + y = 163

y = 28

adult ticket price: $45

child ticket price: $28

8 0
3 years ago
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and
CaHeK987 [17]

Answer:

57

Step-by-step explanation:

Given that :

Standard deviation (σ) = 5 minutes = (5 *60) = 300 seconds

Margin of Error, E = 78

Assume a confidence interval of 95%;

Using the relation :

((Zα/2 * σ) / E)²

(1 - α)/2 = (1 - 0.95)/2 = 0.05 /2 = 0.025

Z0.025 = 1.96

Sample size = ((1.96 * 300) / 78)²

Sample size = (588 / 78)^2

Sample size = 7.5384615^2

Sample size = 56.828

= 57 samples

5 0
3 years ago
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