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Veronika [31]
3 years ago
7

-4(6-b)=4 show work plz

Mathematics
1 answer:
igomit [66]3 years ago
7 0

Answer:

b= 7

Step-by-step explanation:

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Lucy is a dress maker. She sews 4/7 of a dress in 3/4 hour. Lucy sees at a constant rate. At this rate, how many dresses does lu
IgorLugansk [536]

Answer:

Lucy sews \frac{16}{21} dresses in 1 hour.

Step-by-step explanation:

Given:

Lucy sews \frac{4}{7} of a dress in \frac{3}{4} hour.

She sews at constant rate.

We need to find the number of dresses she makes in 1 hour.

In \frac{3}{4} hour = \frac{4}{7} dress

So in 1 hour = Number of dresses in 1 hour

By using Unitary method we get;

Number of dresses in 1 hour= \frac{\frac{4}{7}}{\frac{3}{4}} = \frac{4}{7}\times \frac{4}{3}= \frac{16}{21}

Hence Lucy sews \frac{16}{21} dresses in 1 hour.

5 0
3 years ago
There are 81 athletes who joined a parade. Four-ninths of them are basketball players. How many basketball players joined the pa
lozanna [386]

Answer:

36

Step-by-step explanation:

81 x (4/9) =

36

5 0
2 years ago
Teresa is riding on a bike course that is 45 miles long. So far, she has ridden 18 miles of the course. What percentage of the c
BaLLatris [955]

Answer:

8.1 percent

Step-by-step explanation:

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5 0
3 years ago
The Product of C and 8 is less than -18
Liono4ka [1.6K]

-18/8 = -2.25

therefore C is less than -2.25

3 0
4 years ago
Kelly is three years younger than her sister. The sum of their ages is 34 years. How old is Kelly and how old is her sister?
Kazeer [188]

Answer:

Kelly is 20

Her sister is 14

Step-by-step explanation:

34 ÷ 2 = 17 (average)

17 + 3 = <u>20</u>

17 - 3 = <u>14</u>

4 0
4 years ago
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