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katen-ka-za [31]
3 years ago
7

A boy starts from walking North at a speed of 1.5m/s and a girl starts walking West at the same point, P at the same time at a s

peed of 2.0m/s. At what rate is the distance between the boy and the girl increasing 6s later?
Mathematics
1 answer:
prisoha [69]3 years ago
3 0

Answer:

15m

Step-by-step explanation:

For every second, the boy walks 1.5 m

So 6 x 1.5 m equals 9 m total

For every second, the girl walks 2m

So 6 x 2 m equals 12 m total

The boy walked North, so it would look like he is walking upward

While the girl walking West looks like she is walking to the left

Finding the distance between them would look like solving a right triangle

We're gonna use the Pythagorean theorem

12² + 9² = distance²

144 + 81 = 225

√225 = 15

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Asap help please on this question thanks
Rina8888 [55]
90-30=60 Hoped this helped
3 0
3 years ago
A student has a savings account earning 3% simple interest. She must pay $1200 for first-semester tuition by September 1 and $12
Bingel [31]

Using simple interest, it is found that she needs to earn $2,391.07 during the summer.

<h3>Simple Interest</h3>

Simple interest is used when there is a single compounding per time period.

The amount of money after t years in is modeled by:

A(t) = A(0)(1 + rt)

In which:

  • A(0) is the initial amount.
  • r is the interest rate, as a decimal.

For this problem, the objective is to have <u>$1200 in 3 months = 0.25 years</u>, hence the parameters are given as follows:

A(0.25) = 1200, t = 0.25, r = 0.03.

Hence we have to solve for A(0):

A(0)(1 + 0.03 x 0.25) = 1200

A(0) = 1200/(1 + 0.03 x 0.25)

A(0) = $1,191.07.

She also needs to earn $1,200 to pay the first-semester bill on time, hence:

1200 + 1191.07 = $2,391.07.

She needs to earn $2,391.07 during the summer.

More can be learned about simple interest at brainly.com/question/16646150

#SPJ1

3 0
1 year ago
6)
Dvinal [7]

Answer:

It has to be x - 9= 27

so it can be x=36

6 0
3 years ago
Read 2 more answers
A neutral atom of oxygen has 8 protons and __ electrons
a_sh-v [17]
Pretty sure it’s 8 electrons
5 0
3 years ago
Read 2 more answers
Grade For This Exam Selles
adell [148]

Answer/Step-by-step explanation:

a. Volume of hemisphere = ½(⁴/3πr³)

r = 30 cm

Volume = ½(⁴/3 × π × 30³)

Volume = ⅔ × π × 27,000 = 56,548.6677 ≈ 56,549 cm³

b. 4,500 cm³ = 1 min

56,549 cm³ = (56,549 × 1)/4,500

= 12.5664444 ≈ 12.6 mins

8 0
2 years ago
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