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Helga [31]
4 years ago
14

Please help meeeeeeeee

Mathematics
2 answers:
Montano1993 [528]4 years ago
4 0

Answer:

\frac{2}{3} in \: mins =  \frac{2}{3}  \times 60 \\  = 40mins \\ 40 =  \frac{1}{6}  \\ therefore \: 60mins = x \\  \frac{40}{60}  =  \frac{ \frac{1}{6} }{x}  \\ 40x = 60 \times \frac{1}{6}  \\ 40x = 10 \\ x =  \frac{1}{4}

therefore per hour Harris can sew 1/4 pair of jeans

maria [59]4 years ago
3 0

1/4

2/3 in hours is 40 minutes

If he can sew 1/6 jeans in 40 minutes, then it will take him 1 hour to sew how many jeans?

NOTE: 1hour =60 minutes

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a rectangular parking lot has an area of 7/10 square kilometer the width is 1/3 kilometer what is the length of the parking lot
Virty [35]

Answer:

2\frac{1}{10} km

Step-by-step explanation:

We are given;

  • The are of a rectangle as 7/10 km²
  • Width of the rectangle is 1/3 km

We are required to find the length of the rectangle;

We need to know how to find the area of a rectangle first;

Area of rectangle = Length × Width

Rearranging the formula;

Length = Area of rectangle ÷ Width

            = 7/10 km² ÷ 1/3 km

   We get;

           =\frac{7}{10} *\frac{3}{1}

           =\frac{21}{10}

           =2\frac{1}{10} km (improper fraction)

Thus, the length of the rectangular park is 2\frac{1}{10} km

5 0
3 years ago
PLZ HELP AND HURRY!!!!
julsineya [31]

Answer:

Complementary

Step-by-step explanation:

adding up to 90 degrees

6 0
3 years ago
Combine the like terms to create an equivelant expression -3x-6(-1)
Elza [17]

Answer:

-3x+6

Step-by-step explanation:

-3x-6(-1)

First, multiplying two negatives equals a positive: (-)×(-)=(+). Then,

multiply the numbers -3×+6×1 = -3x+6. Then, you got the answer and the answer is -3x+6

3 0
4 years ago
Sociologists say the percentage of the classic music lovers is about 5%. From the survey, we know that only 83 out of 2000 peopl
disa [49]

Answer:

p value from chi square = 0.081

Step-by-step explanation:

Given that sociologists say the percentage of the classic music lovers is about 5%. From the survey, we know that only 83 out of 2000 people listen to the classic music. Let denote the proportion of the classic music lovers. The hypotheses are H0: p=0.05 vs Ha: p≠0.05

p value = 0.09

Instead of this if we do chi square

H0: Proportion of music lovers is 5% and non music lovers is 95%

Ha: Proportions are not as per the estimate

(Two tailed chi square test)

Observed       83           1917       2000

Expected        100          1900     2000

O-E                  -17              17          0

chi square

(O-E)^2/E        2.89         0.1521     3.0421

df =1

p value from chi square = 0.081

Though p value is not exactly the same, the conclusion in both tests are the same

5 0
4 years ago
Two rays that intersect at a right angle are best described as which of the following
sveticcg [70]

A coplanar point are points that lie on the same line. An angle is the intersection of two noncollinear rays at a common endpoint. The rays are called sides and the common endpoint is called the vertex.


hope that helps


7 0
4 years ago
Read 2 more answers
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