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qwelly [4]
3 years ago
13

Rachel's learning to play the violin Monday through Friday she practices 45 minutes on each day on Saturday and Sundays he broug

ht his one and a half hours each week how long did you practice for in a week
Mathematics
1 answer:
I am Lyosha [343]3 years ago
5 0

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.

           

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NEED HELP ASAP PLEASE I CANT FAIL
kati45 [8]

Answer:

220 miles

Step-by-step explanation:

65 miles per hour for 2 hours — 65+ 65 = 130

60 miles per hour for 1.5 hours — 60 (for the 1 hour) + 30 (for the half hour) = 90

130 + 90 = 220

7 0
3 years ago
Read 2 more answers
Find the missing side of this right a triangle?<br> help pls
yaroslaw [1]

Hi, there!

 _____

To find the missing side length of this triangle (which is a <em>right</em> triangle), we'll use Pythagoras' Theorem.

-\!\!\!-\!\!\!-\!\!\!\longrightarrow\boldsymbol{a^2+b^2=c^2}

Here,

\textsc{legs:}\begin{cases} \bold{a}\\\bold{b} \end{cases}

Hypotenuse (the longest side): c

We know that

\bold{a=2 \ and \ b=28}

So, we can substitute our parameters, and solve for c.

\bold{2^2+28^2=c^2} -\!\!\!-\!\!\!-\!\!\!\longrightarrow square 2 and 28

\bold{4+784=c^2} -\!\!\!-\!\!\!-\!\!\!\longrightarrow add the numbers

\bold{788=c^2} -\!\!\!-\!\!\!-\!\!\!\longrightarrow square root both sides

\bold{\sqrt{788}=c}

Hope the answer - and explanation - made sense,

happy studying!!

6 0
2 years ago
Which rule describes the relationship between the x- and y- coordinates on line m?
const2013 [10]

Answer:

y = 2x - 1

Step-by-step explanation:

None of those would be correct, the line on the graph is y = 2x - 1 because the slope of the line is 2 and the y -intercept -1.

You can also check, we know that on the graph the coordinates where the dots are located are: (2,3),(3,5),(4,7) where the first number is x and second is y coordinate.

Check answer:

Let x=2 if this is correct y should be equal to 3 because of the first point (2,3).

y = 2(2)-1 = 4 - 1 = 3

check the other points if you want to confirm.

3 0
3 years ago
A biologist tags 25 birds with a band on their foot and lets them go back into the wild. The next year 100 total birds are captu
mestny [16]

Answer:

We can estimate a population of 500 birds.

Step-by-step explanation:

We can estimate the total bird population using a rule of three with the information given:

If we find 5 birds with the foot band among 100 birds captured, how many birds there are in total if inicially we put foot bands in 25 birds?

5 birds with foot band -> 100 birds captured

25 birds with foot band -> X total birds

X * 5 = 25 * 100

X = 25 * 100 / 5 = 500 birds

We can estimate a population of 500 birds.

7 0
3 years ago
Circle D is centered at (-3, 3) with a radius of 5 and circle E is centered at (3,-3) with a radiu
bezimeni [28]
I think “c” is the correct answer. I am not sure
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