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3 years ago

12

I need help please, i don’t not understand

1 answer:

Leviafan [203]3 years ago

7 0

Write in 0 and 0 at the top: this indicates that if there are zero pennies, the height of the tower is 0. This is the point (0,0). Another point is (4, 28): a tower of 28 pennies is 4 cm tall.

Find the slope of the line connecting (0,0) and (4,28).
4cm - 0 cm
m = ----------------- = (1/7) (cm/penny)
28 - 0

The equation we need, relating # of pennies to height of tower, is

t = (1/7) (cm/penny)x, where x is the # of pennies.

Thus, if x = 1, then t=1/7 cm

And, if x =15, then t = 15/7 cm

And so on.

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Find the least common multiple of: 12x^3y^2 and 15x^2y^5

allochka39001 [22]

Answer: $60x^3y^5$

Step-by-step explanation:

Least Common Multiple :The least positive number that is a multiple of two or more numbers.

To find : The least common multiple of: $12x^3y^2$ and $15x^2y^5.$

Since, $12x^3y^2=2\times2\times3\times x^3y^2$

$15x^2y^5=3\times5\times x^2y^5$

The least common multiple of: $12x^3y^2$ and $15x^2y^5.$ = $2\times2\times3\times5\times x^3y^5=60x^3y^5$ [take highest power of x and y ]

Hence, the least common multiple of: $12x^3y^2$ and $15x^2y^5.$ = $60x^3y^5$

3 0

2 years ago

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ryzh [129]

The answers are C and also D

3 0

2 years ago

A) Complete the table of values for y = 6 - 2x

GREYUIT [131]

Step-by-step explanation:

the answer as shown in the photo

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1 year ago

What are the coordinates of the point that is 9 units to the left of (5, -8)?

Alenkinab [10]

Answer:

(-4,-8)

Step-by-step explanation:

You subtract 9 from the x coordinate because that it the coordinate that moves the point left or right.

5-9=-4

5 0

2 years ago

Wages. JoAnn works in the publicity office at the state university. She is paid $10 an hour for the first 35 hours she works eac

rosijanka [135]

Since Joann receives $10 per hour for the first 35 hours, so she receives $350 (35 times $10) before she starts receiving extra hours.

Since she received $515, we know that she worked extra hours.

Let's use the variable x to represent the number of extra hours worked.

So we can write the following equation for the total payment received:

$\begin{gathered} 10\cdot35+15\cdot x=515 \\ 350+15x=515 \\ 15x=515-350 \\ 15x=165 \\ x=11 \end{gathered}$

She worked 11 extra hours. Adding this to the 35 regular hours, so she worked for 46 hours.

5 0

1 year ago

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