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Marat540 [252]
3 years ago
6

Noah built a fenced dog run that is 8 yards long and 6 yards wide. He placed posts at every corner and every yard along the leng

th and width of the run. How many posts did he use?
Mathematics
1 answer:
Karolina [17]3 years ago
6 0
There are 7 posts along one 8-yard side and 5 posts along one 6-yard side. It means that he used:

2 * 7 + 2 * 5 + 4 (posts on the corners) = 14 + 10 + 4 = 28 posts
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What is x + 5 equals 10
Wittaler [7]

x+5= 10

move +5 to the other side

sign changes from +5 to -5

x+5-5= 10-5

x= 10-5

x= 5

Answer:

x= 5

7 0
3 years ago
In 14b, is 14 the variable, coefficient, term, or product?
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Answer:

Pretty sure its coefficient

Step-by-step explanation:

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2 years ago
Elena has $225 in her bank account. She takes out $20 each week for weeks. After weeks she has d dollars left in her bank accoun
leonid [27]

Answer:

the equation to use would be D (255-20(5) = ?). To solve, first multiply 20 and 5 and you would get 100 so the equation would be 255 - 100 = ? Then you would subtract 100 from the 255 to get $155 left. To solve for 7 weeks you would replace the 5 in the equation with 7 so your equation would be 255 - 20(7) = ? Next you would multiply 20 and 7 to get 140. the equation would then be 255 - 140 = ? Subtract 140 from 255 and you would get 115. So after 7 weeks she would have $115 left in her account.

7 0
3 years ago
4. Find x. Then find each indicated measure.
Zigmanuir [339]

Answer:

             x=4\\\\EG=9\\\\ED=18

Step-by-step explanation:

\dfrac{x+5+9}{x+5}=\dfrac{12}{6}\\\\\dfrac{x+14}{x+5}=2\\\\x+14=2(x+5)\\\\x+14=2x+10\\\\14-10=2x-x\\\\x=4\\\\EG=4+5=9\\\\ED=9+9=18

3 0
2 years ago
On average, Nancy has noticed that 20 trucks pass by her apartment daily (24 hours). In order to find the probability that more
STatiana [176]

Answer:

P(2)=0.256

Step-by-step explanation:

We know that  Nancy has noticed that 20 trucks pass by her apartment daily (24 hours).  We conclude that for 1 hours,  pass 20/24=5/6  trucks.

We calculate how many trucks pass for 3 hours:

3 · 5/6= 15/6=2.5=λ

We use a Poisson distribution:

P(k)=\frac{λ^k · e^{-λ}}{k!}

For  2 trucks we have that is k=2. We know that is λ=2.5

We caclulate the probability

P(2)=\frac{2.5² · e^{-2.5}}{2!}

P(2)=0.256

6 0
3 years ago
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