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scoray [572]
2 years ago
6

5. Kamala worked for 7 1/2 h. She spent 2/3 of the time on her computer. How long was she on her computer?​

Mathematics
2 answers:
GREYUIT [131]2 years ago
6 0

She was 5 hours on her computer

Number of hours worked = 7\frac{1}{2}

This is an improper fraction so first we convert it

7\frac{1}{2} = > \frac{15}{2}

Time spent on her computer = \frac{2}{3} of working hours

∴ time spent on computer = (15/2)*(2/3)

= 5 hours

Lina20 [59]2 years ago
4 0

Answer:

5 hrs

Step-by-step explanation:

7 1/2 hours equates to 450 minutes total

2/3 of 450 = 300 total minutes

turning the minutes back into hours, 300 / 60 = <u>5</u>

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Divide 33 photos into two groups so the ratio is 4 to 7
jeka57 [31]
33 photos in a 4x to 7x ratio

4x + 7x = 33
11x = 33
x = 3

33 photos can be put in a 4(3) to 7(3) ratio

which is a 12 to 21 ratio

so 12 photos on one side, and 21 on the other side to get the ratio of 4 to 7

Note:
<span>a(b) = ab = a x b = a times b</span>
4 0
3 years ago
principal phillipi used a random sample of 20 students records to determine how far, in miles, students live from the school. Th
zzz [600]
To find the mean:

Take <span>3 4 5 3 4 5 6 5 4 3 2 3 4 5 6 4 8 4 3 2 and add them all together

=83

Now you divide 83 by the number of terms in the sample set, which is 20. 

83/20 = 4.15

For rounding to the nearest tenth, look at the hundredths space, which is 5. Since it is 5 or higher, round the tenths up one. 

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5 0
3 years ago
Read 2 more answers
A. Refer to the measures of two angles that are given.
Mazyrski [523]

Hello!

Answer:

angle 1 = 100

angle 2 = 80

angle 4 = 105

angle 6 = 100

angle 7 = 105

angle 8 = 75

angle 9 = 100

angle 10 = 80

angle 11 = 75

angle 12 = 105

angle 13 = 80

angle 14 = 100

angle 15 = 105

angle 16 = 75

3 0
3 years ago
What's the equation of the graph shown above?
Soloha48 [4]

Answer:

x=7

Step-by-step explanation:

This is a vertical line.  Vertical lines are of the form  x=

The x coordinate is 7

x=7

8 0
3 years ago
Read 2 more answers
A jewelry store has 212.75 ounces of 14-carat gold in stock. (a) how many custom necklaces can be manufactured if each requires
Nonamiya [84]

Answer:

a. The number of custom necklaces that can be manufactured if each requires 2 7/8 ounces of gold is 74 necklaces.

b. The value of the gold in each necklace is $1761

Step-by-step explanation:

(a) Number of necklaces

27/8 ounces of gold=2.875

No of necklaces=212.75oz x 1 necklaces/2.875oz

                          =74 necklaces

(b)Value of gold in each necklace

There are 2.875 oz of 14K gold in each necklace. Pure gold is 24K.

Mass of pure gold=2.875oz x 14k/24k

                              =1.677083oz

Pure 24K gold is worth $1050/oz.

Value of pure gold=1.677oz x 1050/1oz

                              = 1760.9 dollars

The value of the gold in each necklace is $1761

#SPJ4

Learn more on

brainly.com/question/12983156

6 0
2 years ago
Read 2 more answers
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