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ruslelena [56]
3 years ago
9

Factor 21x + 15y=.... Please show how you got your answer.

Mathematics
2 answers:
docker41 [41]3 years ago
8 0

Answer:

3(7x + 5y)

Step-by-step explanation:

the highest common factor for this equation is 3, as 21/3 = 7 and 15/3 = 5, and 5 and 7 have no more common factors:

thus - > 21x + 15y = 3(7x + 5y)

Travka [436]3 years ago
4 0
2(x+7y)
I’m not sure about it
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Jenny has $2.40 deducted from her monthly allowance every time she forgets to do a chore. If she forgets three times in a month,
NeX [460]

Answer:

D -$7.20

Step-by-step explanation:

  1. If she takes (substance) $2.40 every times she forgets to do a chores you have to substance
  2. but first you have to multiply because she forgets 3 times
  3. 2.40 × 3 is 7.20
  4. but since she taking it away it would be negative

so your answer is -$7.20

I hope this helps

4 0
3 years ago
Write an equation in slope-intercept form of the line that bisects the angle formed by BA and BC
slega [8]

Given:

Angled formed by ray BA and ray BC is 90 degrees.

To find:

The equation of line that bisects the angle formed by ray BA and ray BC.

Solution:

If a line bisects the angle formed by ray BA and ray BC, then it must be passes through point B and makes angles of 45 degrees with ray BA and ray BC.

It is possible if the line passes though point B(-1,3) and other point (-2,4).

Equation of line is

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

y-3=\dfrac{4-3}{-2-(-1)}(x-(-1))

y-3=\dfrac{1}{-1}(x+1)

y-3=-x-1

Add 3 on both sides.

y=-x-1+3

y=-x+2

Therefore, the required equation of line is y=-x+2.

8 0
3 years ago
While in France, Judy wants to sign up for a bike tour to see the countryside. She likes a tour that is 40 kilometers long, but
Sonja [21]

Answer:

24 miles

Step-by-step explanation:

In order to calculate Judy's estimation, we would simply have to multiply the actual distance in kilometers of the tour by the number of miles that Judy believes are in a single mile. This would give us Judy's estimation for how long the tour would be in miles.

40 km. * 0.6 miles = 24 miles

Finally, we can see that Judy's estimation would be that the tour is 24 miles long. Using Judy's believed conversion rate.

8 0
3 years ago
Can anyone help me please i will give you 15 points
romanna [79]

Answer:

The answer is 17/20

Step-by-step explanation:

3 0
3 years ago
Plz help!!! due tonight I need help!!!!​
Pachacha [2.7K]

Answer:

14400

Step-by-step explanation: i culd be wrong tho

3 0
2 years ago
Read 2 more answers
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