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3 years ago

10

Hector wants to practice piano 2 hours each day. He practices piano for 3/4 hour before school and 7/10 hour when he gets home.

How many hours has Hector practiced piano? How much longer does he need to practice before going to bed in order to meet his goal?

1 answer:

daser333 [38]3 years ago

5 0

Answer:

me too

Step-by-step explanation:

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vesna_86 [32]

First, you would divide 360/12= 30 pages an hour, so then you would 400 / 30 = 13.3 hrs

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3 years ago

What is the equation of the line i slope intercept form of the line passing throughoints (-5, -2)) and (3,-14).

Paraphin [41]

STEP 1

Write out the formula needed

$\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ \text{Also, m=}\frac{y_{}-y_1}{x_{}-x_1} \end{gathered}$

STEP 2

Equate both equations together then substitute the values of the points into the equation.

$\begin{gathered} \frac{y_2-y_1}{x_2-x_1}=\frac{y_{}-y_1}{x_{}-x_1} \\ \frac{-14-(-2)}{3-(-5)}=\frac{y-(-2)}{x-(-5)} \\ \frac{-14+2}{3+5}=\frac{y+2}{x+5} \\ -\frac{12}{8}=\frac{y+2}{x+5} \\ -\frac{3}{2}=\frac{y+2}{x+5} \\ \text{Cross multiply} \\ -3(x+5)=2(y+2) \\ -3x-15=2y+4 \\ 2y=-3x-15-4 \\ 2y=-3x-19 \\ \text{Divide both sides by 2} \\ y=-\frac{3x}{2}-\frac{19}{2} \end{gathered}$

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1 year ago

Please help it's for today!!!! 60 Points

Svetach [21]

Answer: Rate of change is 10.16

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3 years ago

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Zina [86]

Answer:

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Simple interest formula is:

A = P*(1 + r*t)

where A if final account, P is principal, r is annual interest rate (as decimal) and t is time in years

Interest earned is A - P, then:

I = P*(1 + r*t) - P = P(1 + r*t - 1) = P*r*t

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I = 1100*0.032*3 = $105.6

If P = $990, r = 0.0315 and t = 4, then:

I = 990*0.0315*4 = $124.74

If P = $1025, r = 0.028 and t = 5, then:

I = 1025*0.028*5 = $143.5

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4 years ago

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Ivanshal [37]

Answer:

Step-by-step explanation:

Slope:

3

3

y-intercept:

2

2

Any line can be graphed using two points. Select two

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x

y

0

2

1

5

x y 0 2 1 5

Graph the line using the slope and the y-intercept, or the points.

Slope:

3

3

y-intercept:

2

2

x

y

0

2

1

5

x y 0 2 1 5

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3 years ago