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Margaret [11]
3 years ago
12

Two clocks are turned on at the same time. One clock chimes every 15 minutes. The

Mathematics
1 answer:
Kisachek [45]3 years ago
5 0

Answer:

In 75 minutes, they will chime in together.

Step-by-step explanation:

First clock- 15, 30, 45, 60, 75

Second clock- 25, 50, 75

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Rachel's learning to play the violin Monday through Friday she practices 45 minutes on each day on Saturday and Sundays he broug
I am Lyosha [343]

Rachel spends 6 hours 45 minutes a week trying to learn to play the violin.

Step-by-step explanation:

Step 1; Rachel learns for 45 minutes a day from Monday through Friday and in the weekend she learns to play the violin for one and a half hours. So she learns for the following periods of time

Monday - 45 minutes

Tuesday - 45 minutes

Wednesday - 45 minutes

Thursday - 45 minutes

Friday - 45 minutes

Saturday - 90 minutes (60 × 1.5 hours)

Sunday - 90 minutes (60 × 1.5 hours)

Step 2; To determine how much time she practices in a week we just add the individual times she plays on each day.

Total time practices in a week = 45 + 45 + 45 + 45 + 45 + 90 + 90 = 405 minutes = 6 hours 45 minutes.

           

5 0
2 years ago
The perimeter of a rectangle is 90 feet. If the length is 15 feet more than the width, what are the dimensions of the rectangle?
Y_Kistochka [10]

Answer:

Step-by-step explanation:

I HAVE NO IDEA...SRRY

3 0
3 years ago
What are the coordinates of the vertex of y=x²+4x+3?​
Travka [436]

Answer:

(-2, -1).

Step-by-step explanation:

y = x² + 4x + 3

Completing the square:

y = (x + 4/2)^2 - (4/2)^2 + 3

y = (x + 2)^2 - 4 + 3

y = (x + 2)^2 - 1.

This is vertex form and the coordinates of the vertex are (-2, -1).

4 0
3 years ago
The school board has approved the addition of a new sports team at your school.
motikmotik

Answer:

210

Step-by-step explanation:

1: Part/whole=%/100

2: 100-5=95

3: 3150/30=$105 uniforms.

Answer: $210

<em><u>Hope this helps.</u></em>

6 0
3 years ago
Janet is drawing the path formed by the parametric equations x=2+3 sin t and y=1-1/2cos t. Which curve did she draw??
frosja888 [35]
Sin²t +cos²t =1

<span> x=2+3 sin t
sin t=(x-2)/3

</span><span>y=1-1/2cos t
y-1= - (cos t)/2 
cos t =-(y-1)/(1/2)

</span>(x-2)²/3² + (y-1)²/(1/2)² = 1
Ellipse
7 0
3 years ago
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