Ask question

Ask question

All categories

4 years ago

6

It takes 28 minutes to play 8 songs on the radio. Every song is played for the same length of time. How long does it take to pla

y 1 song

2 answers:

VashaNatasha [74]4 years ago

7 0

Hey there!!

We know that the time to play each song is the same.

We play 8 songs.

Hence,

song+song+song+song+song+song+song+song = 28

... 8×song = 28

Dividing by 8 on both sides:

... song = 28÷8

... song = 3.5

<em>Hence, the time taken to play each song is 3.5 minutes. </em>

Hope my answer helps!

scoundrel [369]4 years ago

4 0

8 songs=28 minutes
$1 \: song \\ = \frac{28 \: min}{8} \\ = 3.5 \: mins \\ = 3 mins \: 60 \times 0.5s \\ =3 \: mins \: 30 \: s$

You might be interested in

I need help asap will mark you brain list. Show your work

Anna11 [10]

Answer:

1/25
1/9

Step-by-step explanation:

<u>Solving exponents</u>

a. 5^-2 = 1/5^2 = 1/25
b. (3^2)^3/3^8 = 3^6/3^8 = 1/3^2 = 1/9

3 0

4 years ago

please help me for this problem...yoko estimates that the product of 48 and 53 is 250.is that reasonable?why or why not?

Pavel [41]

No because
48 times 53=2544
his estimate is way off- it is off by (2544-250)= 2294

4 0

4 years ago

Read 2 more answers

In the right ∆ABC, the hypotenuse AB = 17 cm. M is the midpoint of the hypotenuse. Find the legs if PAMC=32 cm and PBMC=25 cm

jeyben [28]

Answer:

The length of the legs is 8.64cm and 14.64cm respectively

Step-by-step explanation:

I've added an attachment to aid my explanation.

At different intervals, I'll be making reference to it.

Given

$AB = 17$

$PAMC = 32$

$PBMC = 25$

From the attachment, we have:

$y + z = AB$

Since, M is the Midpoint

$y = z = \½AB$

Substitute 17 for AB

$y = z = \½ * 17$

$y = z = 8.5$

Also, from the attachment

$v + x + z = PAMC$

$v + x + y = 32$

Substitute 8.5 for y

$v + x + 8.5 = 32$

$v + x = 32 - 8.5$

$v + x = 23.5$ --------- (1)

Also, from the attachment

$v + w + z = 25$

Substitute 8.5 for z

$v + w + 8.5 = 25$

$v + w = 25 - 8.5$

$v + w = 17.5$ ----------- (2)

Subtract (2) from (1)

$v - v + x - w = 23.5 - 17.5$

$x - w = 6$

Make x the subject

$x = 6 + w$

Apply Pythagoras Theorem:

We have that:

$AB^2 = AC^2 + BC^2$

The above can be replaced with

$17^2 = x^2 + w^2$ (see attachment)

$289 = x^2 + w^2$

Substitute 6 + w for x

$289 = (6 + w)^2 + w^2$

$289 = 36 + 12w + w^2 + w^2$

$289 - 36 = 12w + 2w^2$

$253 = 12w + 2w^2$

Reorder

$2w^2 + 12w - 253 = 0$

Solve using quadratic equation:

$w = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

Where

$a = 2$

$b = 12$

$c = -253$

$w = \frac{-12 \± \sqrt{12^2 - 4 * 2 * -253}}{2 * 2}$

$w = \frac{-12 \± \sqrt{144 + 2024}}{4}$

$w = \frac{-12 \± \sqrt{2168}}{4}$

$w = \frac{-12 \± 46.56}{4}$

Split:

$w = \frac{-12 + 46.56}{4}$ or $w = \frac{-12 - 46.56}{4}$

$w = \frac{34.56}{4}$ or $w = \frac{-58.56}{4}$

$w = 8.64$ or $w = -14.64$

But length can't be negative

So:

$w = 8.64$

Recall that: $x = 6 + w$

$x = 6 + 8.64$

$x = 14.64$

<em>Hence, the length of the legs is 8.64cm and 14.64cm respectively</em>

5 0

3 years ago

68 page in 34 minutes how many pages can read in one min

Vsevolod [243]

Answer:

2

Step-by-step explanation:

3 0

3 years ago

Find the length of each arc. Round to the nearest tenth.

allochka39001 [22]

Answer:

5.5 units

Step-by-step explanation:

Arc length is given by ...

s = rθ

s = (3.5)(π/2) ≈ 5.5 . . . units

6 0

3 years ago