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Len [333]
3 years ago
12

Eric plays piano and guitar. He practiced on both instruments for a total of 8 hours this week. He practiced the piano for 3/4 o

f that time. For how many hours did Eric practice the piano this week?
Mathematics
1 answer:
Ivan3 years ago
7 0
If you would like to know how many hours did Eric practice the piano this week, you can calculate this using the following steps:

the piano: 3/4 of 8 hours = 3/4 * 8 hours = 6 hours

The correct result would be 6 hours.
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Help please word problem...show work please
Alona [7]
A) you must plug in 50 for variable F and solve for C

C=\frac{5}{9}(50-32)
C=\frac{5}{9}(18)
C= 10
50 degrees fahrenheit is equal to 10 degrees celsius 

B) you must solve the equation for F

C= \frac{5}{9}(F-32)
C/\frac{5}{9}=F-32
C/\frac{5}{9}+32=F
F= C/\frac{5}{9}+32

dividing by a fraction is the same as multiplying buy its reciprocal so it can also be written as

F=\frac{9}{5}C +32

now you just plug in 50 for the variable C in the new equation

F= \frac{9}{5}(50) +32
F= 90 + 32
F= 122

50 degrees celsius is equal to 122 degrees fahrenheit

hope this helped!

6 0
4 years ago
Five less than two times a number is sixty-nine. A. 5 – 2t = 69 t = –32 B. 2t – 5 = 69 t = 37 C. 5 + 2t = 69 t = 32 D. none of t
Julli [10]

Let's translate the expression step by step:


"Five less than..." \to we will have to subtract five from something


"two times a number" \to 2t.


So, we have


"Five less than two times a number" \to 2t-5.


This "is sixty-nine", where "is" means "is equal to". So, the equation is


2t-5=69


which is option B

5 0
3 years ago
Which of the following is a valid application of the distributive property?
Anna35 [415]

Answer:

Only A

Step-by-step explanation:

Be is not distrubitive property and a is opening the parenteses

7 0
2 years ago
Read 2 more answers
Help please with this iready. Before 11:35. I give thanks
Paladinen [302]

Answer:

y=x+4

Step-by-step explanation:

i took the test. good luck!

7 0
3 years ago
Solve for f.<br> 9f = 8f + 8<br> f
Svet_ta [14]

Answer:

f = 8

Step-by-step explanation:

9f = 8f + 8

9f - 8f

= f

So, f = 8

9(8) = 8(8) + 8

72 = 72

6 0
3 years ago
Read 2 more answers
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