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Cloud [144]
3 years ago
5

Of all the houses on kermit lane, 20 have front porches, 20 have front yards, and 40 have back yards. how many houses are on ker

mit lane?
Mathematics
1 answer:
Daniel [21]3 years ago
7 0
40 houses on Kermit lane
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HELPPP. DO TODAY SO PLEASE HELP!!!!!!!!!!
oksian1 [2.3K]

Answer:

47/6cm or 7\frac{5}{6}cm

Step-by-step explanation:

FE= 2\frac{2}{3}

FA= 5/12

AB= 2/3

CD=2

ED=1\frac{1}{4}

BC= 5/6

All=47/6 or 7\frac{5}{6}

6 0
2 years ago
NO LINKS HELP PLEASE PLEASE EXPLAIN ​
Iteru [2.4K]

Answer:  1,278

Step-by-step explanation: 2(18x18)+2 1/2(18x14)

p.e.m.d.a.s. 18x18= 324       18x14= 252

2x324= 648      2.5x252=630

648+630 =1,278

4 0
2 years ago
The core melt- down and explosions at the nuclear reactor in Chernobyl in 1986 released large amounts of strontium-90, which dec
elena-14-01-66 [18.8K]

If S(t) is the amount of strontium-90 present in the area in year t, and it decays at a rate of 2.5% per year, then

S(t+1)=(1-0.025)S(t)=0.975S(t)

Let S(0)=s be the starting amount immediately after the nuclear reactor explodes. Then

S(t+1)=0.975S(t)=0.975^2S(t-1)=0.975^3S(t-2)=\cdots=0.975^{t+1}S(0)

or simply

S(t)=0.975^ts

So that after 50 years, the amount of strontium-90 that remains is approximately

S(50)=0.975^{50}s\approx0.282s

or about 28% of the original amount.

We can confirm this another way; recall the exponential decay formula,

S(t)=se^{kt}

where t is measured in years. We're told that 2.5% of the starting amount s decays after 1 year, so that

0.975s=se^k\implies k=\ln0.975

Then after 50 years, we have

S(50)=se^{50k}\approx0.282s

5 0
3 years ago
Shawna took a test that had a total of 20 items. She got 4/5 of the items correct. How many items did she get correct?
ehidna [41]

Shawna got 16 items correct

Step-by-step explanation:

To find the percentage of answers or part of total answers we multiply the fraction with the total number of items.

Given

Total items on test = 20

Correct items fraction = 4/5

Then,

Correct\ items=\total\ items * \fraction\ of\ correct\ answers\\= 20 * \frac{4}{5}\\=\frac{80}{5}\\=16

Shawna got 16 items correct

Keywords: Percentage, fractions

Learn more about fractions at:

  • brainly.com/question/7419893
  • brainly.com/question/730852

#LearnwithBrainly

4 0
3 years ago
The circumference of a circle is 62.8 inches.Using pi as 3.14,what is the radius.PLEASE SHOW YOUR WORK!!!!
mamaluj [8]
The circumference of a circle - C=2 \pi r

C=62.8 \\ \\
62.8=2 \times 3.14 \times r \\
62.8=6.28r \\ \frac{62.8}{6.28}=r \\ r=10

The radius is 10 in.
7 0
3 years ago
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