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Nikitich [7]
3 years ago
11

You must line up the decimals when your multiplying decimals.

Mathematics
2 answers:
dimulka [17.4K]3 years ago
4 0

Answer:

57

Step-by-step explanation:

Lostsunrise [7]3 years ago
3 0

Answer:

True

Step-by-step explanation: If you dont you could get mixed up with all the numbers moving around and that would just suck to know it but not put the right number

( for me helping anybody thats needs this answer could you take the time to hit that heart it helps me get out there so i can do more.)

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How do you write the slope and the y-intercept of the line​
Readme [11.4K]

Answer:

The equation is y=mx+b, where m= slope and b= y-intercept

If your slope was 2 and your intercept was 3, it would look like:

y= 2x+3

Step-by-step explanation:

4 0
3 years ago
Emily's piggy bank contains twice as many dimes as nickels. It contains two more quarters than nickels. Emily calculates that if
ANTONII [103]

Answer:

Emily has 10 nickels, 20 dimes and 12 quarters in her piggy bank

Step-by-step explanation:

The number of dimes in Emily's piggy bank = 2 × The number of nickels

The number of quarters in it = 2 + The number of nickels

Whereby;

The number of quarters = The number nickels

The number of dimes = The number of quarters

The number of nickels = The number of dimes

The total amount = Current amount - $150

Let 'x' represent the number of dimes, let 'y' represent the number nickels, and let 'z' represent the number quarters in Emily's piggy bank, we have;

x = 2 × y

z = 2 + y

The total amount in the piggy bank is therefore;

Total = C = x×0.1  + y×0.05 + z×0.25 = 2·y×0.1 + y × 0.05 + (2 + y) × 0.25 = 0.5·y + 0.5

C = 0.5·y + 0.5

With the second condition, we have;

z = y

x = z

y = x

We get

x × 0.1 + y × 0.05 + z × 0.25 = y ×0.1 + y×0.05 + y×0.25 = 0.4·y = C - 1.5

∴ C = 0.4·y + 1.5

Which gives;

0.5·y + 0.5 = 0.4·y + 1.5

0.1·y = 1.5 - 0.5 = 1

y = 1/0.1 = 10

y = 10

Therefore;

x = 2×y = 2 × 10 = 20

z = 2 + y = 2 + 10 = 12

Therefore;

The number number of nickels in her piggy bank, y = 10

The number of dimes in her piggy bank, x = 20

The number of quarters in her piggy bank, z = 12

3 0
2 years ago
Read 2 more answers
3+x/3=x/2<br> answer and the steps please
AveGali [126]

Answer:

x = 18

Step-by-step explanation:

Given

3 + \frac{x}{3} = \frac{x}{2}

Multiply through by the LCM of 2 and 3 to clear the fractions.

The LCM of 2 and 3 is 6, thus

18 + 2x = 3x ( subtract 2x from both sides )

18 = x

3 0
3 years ago
Which table has a constant of proportionality between y and x of 1/5? (from khan academy)
katovenus [111]

Answer:

C

Step-by-step explanation:

Solve for each choice until you get the answer 1/5.

A.

2 - 4/5

10/5 - 4/5 = 6/5; this is not 1/5

B

8 - 8/5

40/5 - 8/5 = 32/5; this is not 1/5

C

3 - 16/5

15/5 - 16/5 = -1/5

5 - 26/5

25/5 - 26/5 = -1/5

7 - 36/5

35/5 - 36/5 = -1/5; although this is negative, it still has the same proportionality of 1/5

6 0
2 years ago
Least common multiple of 9, 12, 18​
sladkih [1.3K]

Answer:

36

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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