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FinnZ [79.3K]
3 years ago
15

An electrician is installing lights around a customer's rectangular yard. the yard is 30 feet wide by 72 feet long. The electric

ian must run electrical wire around the entire perimeter. how many feet of electrical wire will the electrician need?
Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0

Answer:

204

Step-by-step explanation:

In order to calculate perimeter of a rectangle you add l+l+w+w. In this case that would be 30+30+72+72. That will come to a total of 204.

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How many two-digit positive integers can be formed the digits 1,5,6, and 8 if no digit is repeated?
IgorLugansk [536]

Answer:

12

Step-by-step explanation:

There are 4 different digits to choose from. Since we want 2-digit number, we will see what digits can we put in place of 1st digit and what digit can we place in place of 2nd digit.

Hence, <u><em>how many digits (from 1,5,6 and 8) can be placed in the 1st digit of the number we want?</em></u>

Any one of the four digits (1,5,6, or 8).

Now, <em><u>How many digits (from 1,5,6 and 8) can be placed as the 2nd digit of the number we want?</u></em>

Any one of the THREE digits (since repetition is not allowed, we disregard the initial digit).

Thus the number of two-digit positive integers is 4 * 3 = 12

5 0
3 years ago
What is the slope of the line shown below (- 1, 8) (2, - 4)
suter [353]

Answer:

The slope of the line can be determined from the gradient equation, rise (y axis)/ run (x-axis)

Hence let (-1, 8) be A and (2, -4) be B. The slope from A to B is (-4-8)/(2-(-1))= (-12)/3= -4

Hence the gradient/ slope of the line is -4.

Step-by-step explanation:

6 0
3 years ago
To mix weed killer with water correctly, it is necessary to mix 30 teaspoons of weed killer with 5 gallons of water. Find how ma
nlexa [21]
Answer
6 Gallons



Each gallon of water needs 6 teaspoons because 30/5=6

Now we know that teaspoons/6=amount of gallons

36/6=6 gallons
7 0
2 years ago
Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. She also earns a base salary
11111nata11111 [884]

Answer:

She earned 1,076 dollars and 25 cents.

Step-by-step explanation:

x =  7.25 * 4,500 / 100

x = 7.25 * 45

x = 326.25

So commission earned is 326.25 $

We need to add this to her base salary for the week, so:

750 + 326.25 = 1, 076.25

Therefore she earned 1,076 dollars and 25 cents.

Hopes this helps ;p

8 0
3 years ago
How to find the slope and y-intercept using a graph??????????
svlad2 [7]
The y-intercept is where on the graph the line is intersecting the y=axis. Slope is in the form y=mx+b  (b=y-intercept, mx=how far up and over.)
6 0
3 years ago
Read 2 more answers
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