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3 years ago

What are the factors of 21

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

3 0

Answer:

21: 3and 7 factors

54: 6and 9 factors

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What is 17/20 - 4/15

Zinaida [17]

Hello there, today you gave us the problem $\frac{17}{20}-\frac{4}{15}$ ,

Our first step is to give them common denominators, which is $\frac{51}{60}-\frac{16}{60}$ , solve it and we get $\frac{35}{60}$ as our answer, which can be simplified down to $\frac{7}{12}$

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3 years ago

HELPPPPPPPPPP :(

mariarad [96]

Answer:

B its B

Step-by-step explanation:

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3 years ago

Solve the equation by completing the square

Andrews [41]

Answer:

b1= $2\sqrt{46} +10$

b2= $10-2\sqrt{46}$

Step-by-step explanation:

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4 years ago

Two trains 100 km apart are traveling toward each other along the same track. The first train goes 50 km per hour; the second tr

dem82 [27]

Answer:

92.31 km

Step-by-step explanation:

Combined speed = 50+80

= 130 km/hour

Time = 100/130 = 10/13 hours to collide

Speed × time = distance

distance = 10/13 × 120

= 92.30769231 km

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3 years ago

Hi can anyone pls help me in dis math problem I WILL MARK U AS BRAINLEIST!!!

ivanzaharov [21]

Answer:

Triangles A & C are right triangles.

Step-by-step explanation:

Triangles A & C are right triangles because they make a 90 degree angle were a pair of legs intersect. That box in the corner of each triangle indicates that the triangle is 90 degrees, therefore a right triangle.

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3 years ago

Read 2 more answers