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3 years ago

Of her book on Tuesday, and of her book on Wednesday,

Mathematics

2 answers:

o-na [289]3 years ago

7 0

Step-by-step explanation:

1/6 + 2/5 +1/3=

nominator × with the other fraction denominator+ second fraction nominator × with first denominator / denominator ×denominator =

1/6+2/5= 1×5+2×6/6×5=5+12/30=17/30

17/30+1/3=,17×3+1×30/30×3=51+30/90=,81/90

now let's try to simplify it.

81/90 by 9=9/10

Step2247 [10]3 years ago

5 0

Answer: 9/10 of the book.

Step-by-step explanation:

1. Convert all of the fractions to have a common denominator. 6, 5, and 3 are all multiples of 30, so we can convert the fractions to 30ths.

1/6 = 5/30

2/5 = 12/30

1/3 = 10/30

2. Add the fractions together to find the whole amount of the book Joyce has read.

5/30 + 12/30 + 10/30 = 27/30

3. Simplify

27/30 -> 9/10

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3 years ago

What is the area of a circle with a diameter of 6x? (Use 3.14 for R

aksik [14]

The area of a circle is defined as Pi R^2

Since we only have the diameter and Pi, we need to solve for the radius.

The radius is 1/2 of the diameter, so divide 6 by 2 to get our radius.
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Our radius is 3.

Now let's plug in our formula.

A = 3.14 x 3^2

3 x 3 = 9
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I hope this helps!

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4 years ago

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2 years ago

A right triangle has one angle that measures 13.7°. what is the measure of the other acute angle

igor_vitrenko [27]

One of the angles of a right triangle is always 90 degrees. we have another 13.7 degrees angle. so we can find the other acute angle
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4 years ago

The density of a certain type of paint is 1.2 grams per cubic centimeter. A garage Door that is 3 meterá tal and 7 meters wide i

Yakvenalex [24]

Since the density is given in grams per cubic centimeter, we are going to convert the dimensions of the door to centimeters to calculate its volume in cubic centimeters.
We know that 1 meter = 100 centimeters and 1 centimeter = 10 millimeter, so we can use those conversion factors to convert from millimeters to centimeters and from meters to centimeters:
$3m( \frac{100cm}{1m} )=300cm$
$7m( \frac{100cm}{1m} )=700cm$
$1mm( \frac{1cm}{10mm} )=0.1cm$
The volume of the layer of the paint will be height times wide time thickness, so:
$V=(300cm)(700cm)(0.1cm)$
$V=21000cm^3$

Now, to find the mass needed to paint the door, we are going to use the formula: $M=DV$
where
$M$ is mass
$D$ is density
$V$ is volume
We know from our problem that $D= \frac{1.2g}{cm^3}$ , and we know form our previous calculation that $V=21000cm^3$ , so lets replace those values in our formula to find $M$ :
$M=DV$
$M=(\frac{1.2g}{cm^3} )(21000cm^3)$
$M=25200g$

We can conclude that we will need 25200 grams of paint to paint the door.

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4 years ago