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Delvig [45]
3 years ago
9

Chase plays the piano and cello. For every 2 hours he practices the piano, he practices the cello for 3 hours. If he practices t

he piano for 7 hours last week, how many hours did he spend practicing the cello
Mathematics
1 answer:
Zolol [24]3 years ago
5 0
10 1/5 

really hopes this helped you with what you were solving

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Which point on the number line represents -4/5? <br> A<br> B<br> C<br> D
VLD [36.1K]

Answer:

A

Step-by-step explanation:

theare are 5 part from 0 to -1

since, the value from 0 to -1 is -1 then if we break it to 5 part, each part has value of -1/5

so, to be -4/5, -1/5 must be multiplied by 4, so we need to go to the 4th part from 0, so it A

8 0
2 years ago
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The wheels on Darlene's car have on 11-inch radius. If the wheels are rotating at a rate of 378 rpm, find the linear speed in mi
elena-s [515]

Answer:

The linear speed in which Darlene is traveling is 24.74 miles per hour.

Step-by-step explanation:

The wheel experiments rolling, which is a combination of translation and rotation. The point where linear speed happens is located at geometrical center of the wheel and instantaneous center of rotation is located at the point of contact between wheel and ground. The linear speed (v), measured in inches per second, is defined by following expression:

v = R\cdot \omega (1)

Where:

R - Radius of the wheel, measured in inches.

\omega - Angular speed, measured in radians per second.

If we know that R = 11\,in and \omega \approx 39.584\,\frac{rad}{s}, then the linear speed, measured in miles per hour, in which Darlene is traveling is:

v = 11\,in\times \frac{1\,mi}{63360\,in} \times 39.584\,\frac{rad}{s}\times \frac{3600\,s}{h}

v \approx 24.74\,\frac{mi}{h}

The linear speed in which Darlene is traveling is 24.74 miles per hour.

8 0
3 years ago
Simplify -2[-6(-4 7)] 36 -24 -36
7nadin3 [17]
-2(-53)×36-24-36 》3816-60=3756
3 0
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HELPPP DOES ANYONE KNOW THE ANSWER???
IRISSAK [1]

Answer:

B

Step-by-step explanation:

solve equation.

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What is P(A or B)...?
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the answer is A.) 3/10

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3 years ago
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