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vova2212 [387]
3 years ago
12

Choose the fraction that has not been reduced to simplest form.

Mathematics
2 answers:
EleoNora [17]3 years ago
7 0

The answer would be (C).

To be fully simplified, the numerator and denominator must have a GCF of 1.

Answer (C) says 3/57. However, using the divisibility rule of 3 (add the digits together, and if the sum is a multiple of 3, then the number is as well), we see that 57 is divisible by 3, meaning this fraction is not simplified. The simplified version would be 1/19.

Bingel [31]3 years ago
7 0

When a fraction is in reduced form, one of the numbers will be a multiple of the other.

In \frac{11}{17} one of the numbers is NOT a multiple of the other.

In \frac{5}{16} one of the numbers is NOT a multiple of the other.

In \frac{3}{57} one of the numbers IS a multiple of the other.

\frac{3 \div 3}{57 \div 3} = \frac{1}{19}

In \frac{21}{34} one of the numbers is NOT a multiple of the other.

Your answer is C

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Billy spent $30 on a T-shirt a sandwich and two books the T-shirt cost $8.95 in the sandwich cost $7.25 the books each cost the
saul85 [17]
To find out how much each book cost first we will subract to find out how many 2 books cost. Then we will divide. last but not least we will check our wok. Lets do it:- 

30 - 8.95 = <span>21.05
</span><span>21.05 - 7.25 = 13.80
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CHECK OUR WORK:-

13.80 + 7.25 = 21.05
21.05 + 8.95 = 30
We were RIGHT!!!

Now lets divide:-

13.80 ÷ 2 = 6.90
1 book costs $6.90.

CHECK OUR WORK:-

6.90 × 2 = 13.80
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So, 1 book costs $6.90.

Hope i helped ya!! 
5 0
3 years ago
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It costs Beverly $0.50 to produce each bracelet she makes. She sells each bracelet for $20, plus three times the production cost
MrRissso [65]

Answer:

(0.5b+20b)*3b=c

Step-by-step explanation:

8 0
3 years ago
Two airplanes leave an airport at the same time, the first headed due north and the second at a bearing of N42^ E . At 2:00PM, t
Leno4ka [110]

Answer:

The two airplanes are about 330miles apart.

Step-by-step explanation:

The diagram interpreting the question has been attached to this response.

As shown in the diagram,

i. the airplanes leave at point C.

ii. at 2.00pm the first and second airplanes are at points A and B respectively, where they are 312miles and 487miles away from the starting point C in directions due north and N42E from the point C.

iii. the points A, B and C form a triangle with sides a, b and c.

To solve for the value of c which is the distance between the two planes at 2.00pm, the cosine rule is used.

c² = a² + b² - 2abcosC            --------------(i)

where;

b  = 312miles

a = 487miles

C = 42°

Substitute these values into equation (i) and solve as follows;

c² = (487)² + (312)² - 2(312)(487)cos(42)

c² = (237169) + (97344) - 303888cos(42)

c² = (237169) + (97344) - 303888(0.7431)

c² = 334513 - 225819.1728

c² = 108693.8272

<em>Take the square root of both sides</em>

√c² = √108693.8272

c = 329.69

c ≅ 330miles

Therefore, the two airplanes are far apart by 330miles

3 0
3 years ago
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AysviL [449]
The square root of 81 is 9
4 0
3 years ago
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Mandarinka [93]

Answer: Hmm Ok i do this-

Step-by-step explanation:

Wait are we trying to find x?

Ok so for the first one x = 5 and for the second one x = 2

3 0
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