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rodikova [14]
3 years ago
8

Felipe has a flower bed with area 25/4 ft². He expands the flower bed to have area 75/4 ft². How many square feet of space does

the larger flower bed have for every square foot of the smaller flower bed? Show your work.
Mathematics
2 answers:
Damm [24]3 years ago
6 0

Answer:

  • 3

Step-by-step explanation:

<u>It is asking how many times the flower bed expanded:</u>

  • 75/4 ÷ 25/4 =
  • 75/4 × 4/25 =
  • 75/25 =
  • 3
ziro4ka [17]3 years ago
5 0
  • Previous area=25/4ft^2
  • New area=75/4

Expanded:-

\\ \star\sf\longmapsto \dfrac{75}{4}\div \dfrac{25}{4}

\\ \star\sf\longmapsto \dfrac{75}{4}\times \dfrac{4}{25}

\\ \star\sf\longmapsto \dfrac{75}{25}

\\ \star\sf\longmapsto 3times

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Last week, 108 cars received parking violations in the main university parking lot. Of these, 27 had unpaid parking tickets from
garik1379 [7]

Answer:

95 percent confidence interval

[0.208,0.29166]

Step-by-step explanation:

First we identificate the sample proportion p = 27 /108, and we find the 95 percent confidence interval for P(population proportion) in this context the parking violations that have prior unpaid parking tickets.

Then α = 0.05 and 1 - α/2 = 0.975

Thus Z_{0.975} = 1.96

The 95 percent confidence interval is

[ p ± 1.96 \sqrt{\frac{p(1-p)}{n} } ]

[0.25  ± 1.96 \sqrt{\frac{0.25*0.75}{108} } ]

[0.208,0.29166]

6 0
3 years ago
Four students were discussing how to find the unit rate for a proportional relationship. Which method is valid?
vovangra [49]

Answer:

The method that is valid in finding the unit rate for a proportional relationship is by:

Look at the graph of the relationship. Count the number of units up and the number of units to the right one must move to arrive at the next point on the graph. Write these two numbers as a fraction. The unit rate is the slope, which is the rise over run.

Step-by-step explanation:

3 0
3 years ago
Your math teacher gives you an extra credit problem to figure out her age. Half of her age three years
MatroZZZ [7]

Answer:

Teacher is 27 years old

Step-by-step explanation:

(1/2)(t - 3) = (1/3)(t + 9)

multiply by 6 to clear the fraction

3(t - 3) = 2(t + 9)

Distribute

3t - 9 = 2t + 18

Subtract 2t from both sides

t - 9 = 18

Add 9 to both sides

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Teacher is 27 years old

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B14%7D%20%2F%20%5Cfrac%7B4%7D%7B3%7D" id="TexFormula1" title="\frac{9}{14} / \
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3 years ago
the diameters of Douglas firs grown at a Christmas tree farm are normally distributed with a mean of 4 inches and a standard dev
aksik [14]

Answer:

Proportion of the trees will have diameters between 2 and 6 inches = 0.8164

Step-by-step explanation:

Given -

Mean (\nu )  = 4

Standard deviation (\sigma  ) = 1.5

Let X be the diameter of tree

proportion of the trees will have diameters between 2 and 6 inches =

P(2<  X<  6)   =  P(\frac{2 - 4 }{1.5}< \frac{X - \nu }{\sigma}<  \frac{6 - 4 }{1.5})

                         = P(\frac{-2 }{1.5}< Z<  \frac{2 }{1.5})     Put  [Z = \frac{X - \nu }{\sigma}]

                         =  P(-1.33< Z<  1.33)

                          = (Z<  1.33) - (Z<  -1.33)

                          = .9082 - .0918

                           = 0.8164

6 0
3 years ago
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