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galina1969 [7]
3 years ago
15

What does this equal: 4 1/2 + 3 2/3=

Mathematics
2 answers:
professor190 [17]3 years ago
8 0
4 1/2 + 3 2/3 = 8.16666667
prohojiy [21]3 years ago
3 0
49/6 or 8 1/6 if you want to keep it a fraction but if not 8.166 (6 repeating)
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Bob claimed down a ladder from his roof, while Roy climbed up another ladder next to him. Each ladder had 26 rungs. Bob went dow
vodomira [7]

Answer:

they were in an elevator

5 0
3 years ago
The count of bacteria in a certain experiment was increasing at a rate of 2.5% per hour. if the experiment started with 1600. fi
krok68 [10]
The bacteria at the end of 22 hours is 2,480
5 0
3 years ago
In May, the school store sells 80 erasers. In June, the store sells only 16 erasers. What is the percent of change in erasers so
lawyer [7]

Answer:  80%

Step-by-step explanation:

Since we have given that

Number of erasers sold in May = 80

Number of erasers sold in June = 16

Decrement in 1 month gap is given by

16-80=-64

So, Percentage of change in erasers sold from May to June is given by

\frac{-64}{80} × 100

= -80% (Decreased 80%)

4 0
3 years ago
how do you find a percentage of a number. Provide an example. Well not a specific number put jow do i find it ?
ollegr [7]
To find a percentage, if I am ready your question correctly, would be as simple as dividing the number by 100. For example, finding the percentage of 73.

73/100 = .73%

You could also just move the decimal place over two spots to the left.
7 0
3 years ago
A metal hollow bar whose cross section and dimension are shown below weighs 8x10^3 kg/m^3 and measure 2m in length ..determine t
devlian [24]
1) We calculate the volume of a metal bar (without the hole).

volume=area of hexagon x length
area of hexagon=(3√3 Side²)/2=(3√3(60 cm)²) / 2=9353.07 cm²
9353.07 cm²=9353.07 cm²(1 m² / 10000 cm²)=0.935 m²

Volume=(0.935 m²)(2 m)=1.871 m³

2) we calculate the volume of the parallelepiped

Volume of a parallelepiped= area of the section  x length
area of the section=side²=(40 cm)²=1600 cm²
1600 cm²=(1600 cm²)(1 m² / 10000 cm²=0.16 m²
Volume of a parallelepiped=(0.16 m²)(2 m)=0.32 m³

3) we calculate the volume of a metal hollow bar:
volume of a metal hollow bar=volume of a metal bar -  volume of a parallelepiped

Volume of a metal hollow bar=1.871 m³ - 0.32 m³=1.551 m³

4) we calculate the mass of the metal bar

density=mass/ volume  ⇒ mass=density *volume

Data:
density=8.10³ kg/m³
volume=1.551 m³

mass=(8x10³ Kg/m³ )12. * (1.551 m³)=12.408x10³ Kg

answer: The mas of the metal bar is 12.408x10³ kg  or   12408 kg  


4 0
3 years ago
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