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tigry1 [53]
2 years ago
12

Jimmy spent 45 minutes to finish his homework. There are 20 problems. What is the average amount of time he spends to finish eac

h problem
Mathematics
1 answer:
nexus9112 [7]2 years ago
6 0
The average is (time)/(number of problems)=(45/60)/20=(3/4)/20=3/80  hours per problem. In minutes, the answer would be 3/80*60=9/4 minutes per problem.
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A tile installer plots an irregular shape on grid paper. Each square on the grid represents 1 square centimeter. What is the are
Gelneren [198K]

Answer:

34cm²

Step-by-step explanation:

Find diagram in the attached file.

Since each square on the grid represent 1cm², the length of the each square will be 1cm

Area of the irregular shape can be gotten by breaking the irregular shape into three shapes which are the triangle, rectangle and a parallelogram.

Area of the irregular shape = area of triangle + area of rectangle + area of parallelogram

For TRIANGLE

Area of triangle = 1/2×base×height

Since the base of triangle is on 4square grid,

Base = 4cm

Height = 2cm

Area = 1/2×4×2

Area of ∆ = 4cm²

FOR RECTANGLE

Area of rectangle = Length ×Breadth

Length = 3cm

Breadth = 5cm

Area of the rectangular shape = 3×5

= 15cm²

FOR PARALLELOGRAM

Area of a parallelogram = Base × Height

Base = 5cm

Height = 3cm

Area = 5cm×3cm

Area = 15cm²

Area of the irregular shape = 4cm²+15cm²+15cm²

=34cm²

6 0
2 years ago
Where do i graph?<br> please send picture of your own for me to copy
melomori [17]

Answer:

Step-by-step explanation:

Compound inequality has been given as,

12(2x - 10) + 24 ≥ 48 Or 6x + 15 - 9x ≥ 6

By simplifying it further,

12(2x - 10) + 24 ≥ 48

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(2x - 10) + 2 ≥ 4

(2x - 10) + 2 - 2 ≥ 4 - 2

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x ≥ 6

6x + 15 - 9x ≥ 6

(6x - 9x) + 15 ≥ 6

(-3x) + 15 ≥ 6

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-3x ≥ -9

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x ≤ 3

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7 0
2 years ago
One of my classmates stated a hypothesis that all organisms must have an organ system is my classmates hypnosis valid answer
WARRIOR [948]
Incorrect. Take plants for example they do not have organisms but they are living organisms.
8 0
2 years ago
80 to 60 as a fraction
Alenkasestr [34]

Answer:

4/3

Step-by-step explanation:

80 to 60 means a ratio. That means 80:60, which means 80/60, which simplifies to 4/3.


7 0
3 years ago
Read 2 more answers
A culture of bacteria has an initial population of 110 bacteria and doubles every 6
andreyandreev [35.5K]

Answer:

988

Step-by-step explanation:

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2 years ago
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