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Korolek [52]
4 years ago
10

If eric practiced the piano 8hrs a week, if he practices 1/4 of that how many hours is that?

Mathematics
2 answers:
LekaFEV [45]4 years ago
6 0
Divide 8 by 4 and you get 2 hours
Alja [10]4 years ago
3 0
Work:

It is fourths, so divide
8 ÷ 4
That gives you 2

Answer:

2 hours
You might be interested in
How many perfect cube divisors does 160,000 have?
Anuta_ua [19.1K]

Answer:

32

Step-by-step explanation:

16,000 = (2^7)(5^3)

So, the number of positive divisors of 16,000 = (7+1)(3+1)

= (8)(4)

7 0
3 years ago
The sum of the first term of an ap is 240 and the sum of the next 4 term is 220 find the first term of the ap
Sindrei [870]

Answer:

The common difference is -5/4

T(n) = T(0)  - 5n/4,

where T(0) can be any number. d = -5/4

Assuming T(0) = 0, then first term

T(1) = 0 -5/4 = -5/4

Step-by-step explanation:

T(n) = T(0) + n*d

Let

S1 = T(x) + T(x+1) + T(x+2) + T(x+3) = 4*T(0) + (x + x+1 + x+2 + x+3)d = 240

S2 = T(x+4) + T(x+5) + T(x+6) + T(x+7) = 4*T(0) + (x+5 + x+6 + x+7 + x+8)d = 220

S2 - S1

= 4*T(0) + (x+5 + x+6 + x+7 + x+8)d - (4*T(0) + (x+1 + x+2 + x+3 + x+4)d)

= (5+6+7+8 - 1 -2-3-4)d

= 4(4)d

= 16d

Since S2=220,  S1 = 240

220-240 = 16d

d = -20/16 = -5/4

Since T(0) has not been defined, it could be any number.

7 0
3 years ago
WILL GIVE BRAINLIEST!! What are the slope and the y-intercept of the linear function that is represented by the graph?
UNO [17]

Answer:

its d

Step-by-step explanation:

y=-3/4+3 I think that's right

3 0
3 years ago
Read 2 more answers
What is the volume of a cube that has sides 9.2 inches long?
anzhelika [568]
The volume of a cube is V=x³ where x is the side length. The volume of a cube can also be written as V=lwh, where l is length, w is width and h is height. since the given side length to us is 9.2, we can put that into the formula. 
V=9.2³, or V=9.2*9.2*9.2
V=778.688in³

5 0
3 years ago
Write an equation for the line that has a slope -8/9 and goes through the point (-7, 7)
Jobisdone [24]

Answer:

y = (-8/9)x + 0.77777

Step-by-step explanation:

We already know the slope, so the only thing left to find is the y-intercept.

To find the y-intercept, we can <u>plug in the slope and point to the slope-intercept form equation</u> (y = mx+b, where m=slope and b=y-int.)

y   =     m *  x    + b

(7) = (-8/9)*(-7)   + b

<u>Now, just solve for b!</u>

(7) = (-8/9)*(-7)   + b

7 = 56/9 + b

7 - (56/9) = b

b = 0.777777 (repeating decimal, usually signified by a little line above the 7)

so now we just <u>plug in the slope and y-intercept we found into y = mx + b.</u>

y = mx + b

y = (-8/9)x + 0.77777

5 0
3 years ago
Read 2 more answers
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