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xz_007 [3.2K]
3 years ago
13

1. Jessica wrote the number 8.06 x 10-3 in

Mathematics
1 answer:
Levart [38]3 years ago
5 0
C. 0.0806 that’s the write answer to your equation I think
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If $120.99 is charged for 654 units of electricity
pochemuha

Answer:

The cost of one unit of electricity is $0.185

Step-by-step explanation:

Amount charged = $120.99

Units of electricity used = 654

The cost of a unit of electricity can be determined by dividing the amount charged by the number of units used.

So that,

cost of one unit of electricity = \frac{120.99}{654}

                                    = 0.185

cost of one unit of electricity = $0.185

This implies that the cost of electricity used is charged at $0.185 per unit.

Thus for 654 units of electricity used, the cost would be;

654 x $0.185 = $120.99

7 0
2 years ago
In the eighth grade,322 students voted for the new mascot to be a tiger.this was 7/10 of the total number of students in the eig
kolbaska11 [484]
322 is 7/10 of all the students.

322 / 7 = 46

46 is 1/10 of all the students.

46 × 10 = 460

460 is 10/10 of all the students

There are 460 students in eighth grade.
8 0
3 years ago
Read 2 more answers
Simultaneous Equation <br><br> (x+5)(x+2)=65 , xy=24<br><br> Plssss help me ✌
Ne4ueva [31]

Answer:

  • (-11.70, -2.05), (4.70, 5.10)

Step-by-step explanation:

<u>Given equations</u>

  • (x+5)(x+2)=65
  • xy=24

<u>Solving the first equation for x:</u>

  • (x+5)(x+2)=65
  • x^2 + 7x + 10 = 65
  • x^2 + 7x - 55 = 0
  • x = (-7 ± √(49+4*55))/2
  • x = -11.70, x = 4.70

<u>Then solving for y:</u>

  • y= 24/(-11.7) = -2.05
  • y = 24/4.7 = 5.10

<u>Solution set: </u>

  • (-11.70, -2.05), (4.70, 5.10)
7 0
3 years ago
Exhibit 2-8
storchak [24]

Answer:

Maya

Step-by-step explanation:

7 0
3 years ago
A bike shop rents mountain bikes for a $4.50 Insurance charge plus $2.30 for each hour. how many hours can a person run a bike f
mina [271]
They can rent it for 7 hr. $20.60-$4.50=$16.10. $16.1 divided by $2.30= 7
4 0
3 years ago
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