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Travka [436]
4 years ago
8

Can you help me with this another one PLEASE ? And thank you so much it helped me a lot!!!

Mathematics
1 answer:
alina1380 [7]4 years ago
7 0

Answer:

Step-by-step explanation:

If she needs 30 minutes to drive 12 miles,

then we can get the minutes for 18 miles by the fraction:

30/12=x/18

18*30/12 = 45 minutes, which is 3/4 hour

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(4x+y)+5
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This is line segments
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Step-by-step explanation:

here \: given \: that \: total \: lenth = bd = 67 \\ then \: bd = bc + cd \\ so \: we \: can \: write \: that \\ 67 = 3x - 2 + 4x + 13 \\67 =  3x + 4x - 2 + 13 \\ 67 = 7x + 11 \\ 7x = 67 - 11 \\ 7x = 56 \\ x =  \frac{56}{7}  \\ x = 8 \\ thankyou

8 0
3 years ago
Read 2 more answers
If the number of professors in a college is P and the number of students is S, and there are 19 times as many students as profes
morpeh [17]

Answer:

S =19P\\S-19P = 0                              

Step-by-step explanation:

We are given the following in the question:

Let P be the number of professor and S be the student in a college.

According to the question:

There are 19 times as many students as professors.

We have to write an equation to show the given relationship between professors and students.

S =19P\\S-19P = 0

The above situation is the situation that represents the given relationship.

5 0
3 years ago
Divide these polynomial a (27x 4 - 18x 3 + 9x 2) ÷ 3x
Blizzard [7]
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5 0
3 years ago
Please help me. these problems<br>​
jeyben [28]

Answer:

1st problem:

Converges to 6

2nd problem:

Converges to 504

Step-by-step explanation:

You are comparing to \sum_{k=1}^{\infty} a_1(r)^{k-1}

You want the ratio r to be between -1 and 1.

Both of these problem are so that means they both have a sum and the series converges to that sum.

The formula for computing a geometric series in our form is \frac{a_1}{1-r} where a_1 is the first term.

The first term of your first series is 3 so your answer will be given by:

\frac{a_1}{1-r}=\frac{3}{1-\frac{1}{2}}=\frac{3}{\frac{1}{2}=6

The second series has r=1/6 and a_1=420 giving me:

\frac{420}{1-\frac{1}{6}}=\frac{420}{\frac{5}{6}}=420(\frac{6}{5})=504.

3 0
3 years ago
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