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kogti [31]
3 years ago
11

A construction crew has just finished building a road. the crew worked for 10 days. if they build 2 3/4 kilometers of road each

day, what is the total length of road they built? write your answer a mixed number in simplest form.
Mathematics
1 answer:
Amanda [17]3 years ago
5 0
The answer is 55/2 I am happy to help.
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Identify the domain and range for (1,4) (2,5) (0,6) (1,7) (2,8)
melamori03 [73]
The domain are the x values: 0,1,2
The range are the y values: 4,5,6,7,8
7 0
3 years ago
The sum of a two digit number and the number obtained by interchanging the digits is 132. If the two digits differ by 2, find th
damaskus [11]

Answer:

A two-digit number can be written as:

a*10 + b*1

Where a and b are single-digit numbers, and a ≠ 0.

We know that:

"The sum of a two-digit number and the number obtained by interchanging the digits is 132."

then:

a*10 + b*1 + (b*10 + a*1) = 132

And we also know that the digits differ by 2.

then:

a = b + 2

or

a =  b - 2

So let's solve this:

We start with the equation:

a*10 + b*1 + (b*10 + a*1) = 132

(a*10 + a) + (b*10 + b) = 132

a*11 + b*11 = 132

(a + b)*11 = 132

(a + b) = 132/11 = 12

Then:

a + b = 12

And remember that:

a = b + 2

or

a = b - 2

Then if we select the first one, we get:

a + b = 12

(b + 2) + b = 12

2*b + 2 = 12

2*b = 12 -2 = 10

b = 10/2 = 5

b = 5

then a = b + 2= 5 + 2 = 7

The number is 75.

And if we selected:

a = b - 2, we would get the number 57.

Both are valid solutions because we are changing the order of the digits, so is the same:

75 + 57

than

57 + 75.

6 0
3 years ago
X2 + 5x - 50 = 0<br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%205x%20-%2050%20%3D%200" id="TexFormula1" ti
love history [14]

Answer:

x = -10

x = 5

Step-by-step explanation:

{x}^{2}  + 5x - 50 = 0 \\ (x + 10)(x - 5) = 0 \\  \\ x =  - 10 \\ x = 5

8 0
2 years ago
Help with this one!!
shepuryov [24]
$21.44•.25=$5.36
So if you are asking just how much the shipping and handling is it’s $5.36 but if you are asking the total it’s. $26.80
$21.44+$5.36=$26.80
7 0
3 years ago
Read 2 more answers
Jake makes nine loads of all the bread. He uses 30 grams of olives in each loaf. He started with 1 kg of olives how many grams o
kifflom [539]

9514 1404 393

Answer:

  730 grams

Step-by-step explanation:

1 kg is 1000 g.

The amount remaining is ...

  1000 g - 9(30 g) = (1000 -270) g = 730 g

Jake has 730 grams of olives left.

8 0
2 years ago
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