Sound travels about 340 m/s. The function d(t)=340t gives the distance​ d(t), in meters​, that sound travels in t seconds. How far does sound travel in 53 ​s?

Given:

The expression is

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}[/tex]

To find:

The error in Frankie's work.

Solution:

We need to simplify [tex]2\dfrac{1}{3}-1\dfrac{2}{5}[/tex], so

[tex]2\dfrac{1}{3}=2\dfrac{1}{3}\times \dfrac{5}{5}[/tex]

[tex]2\dfrac{1}{3}=2\dfrac{5}{15}[/tex]

and,

[tex]1\dfrac{2}{5}=-1\dfrac{2}{5}\times \dfrac{3}{3}[/tex]

[tex]1\dfrac{2}{5}=-1\dfrac{6}{15}[/tex]

Now,

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=2\dfrac{5}{15}-1\dfrac{6}{15}[/tex]

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=(2+\dfrac{5}{15})-(1+\dfrac{6}{15})[/tex]

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=2+\dfrac{5}{15}-1-\dfrac{6}{15}[/tex]

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=1-\dfrac{1}{15}[/tex]

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=\dfrac{14}{15}[/tex]

Therefore, there is error in Frankie's last step. In that step, he did not subtract the mixed fraction correctly.

Answer:

its C. (3,7)

Step-by-step explanation:

Answer:

0.947

Step-by-step explanation:

Given that :

Play bridge and swim = 72%

Play bridge = 76%

Let play bridge = B

Swim = S

Thus ;

P(B n S) = 0.72

P(B) = 0.76

Probability that member swims given that member plays bridge

P(S | B) = P(BnS) / P(B)

P(S | B) = 0.72 / 0.76

P(S | B) = 0.947

Answer:

336inch

Step-by-step explanation:

1ftt=12in

28ftt=12 ×28

=336in

Answer:

336inch

Hope this helped!

Answer:

d

Step-by-step explanation:

becuse the first one would be 4x and the other ones 2x

Answer:

Step-by-step explanation:

B

The set of side lengths (7, 15, 17) represents a right angled triangle

For the given set of side lengths to represent a right angled triangle, the

Pythagoras relation should be satisfied by the side lengths of the triangle.

We can write the given relation as -

h² = b² + p²

Consider the side length pairs as -

(7, 15, 17)

We can arrange the sides as -

17² = 15² + 7²

289 = 225 + 49

289 = 289

The set of side lengths (7, 15, 17) represents a right angled triangle.

To solve more questions on triangles, visit the link-

https://brainly.com/question/2773823

#SPJ2

Answer:

d

Step-by-step explanation:

m= 6-10 / -1-(-5) = -2

Hope this Helps :)

Answer:

(-2,-1)

Step-by-step explanation:

(-2,-1)Graph it

Answer:

Step-by-step explanation:

Area of a rectangle is represented as;

A = length * width

Given

Area = 3/5 m²

Width = 2/5 m

Required

Length = x

Get the length;

From the formula

L = A/W

L = 3/5 ÷ 2/5

L = 3/5 × 5/2

L = 3/2 m

Hence the length of the rectangle is 3/2 m

Take the ratio of the length to the width as shown;

L/W = 3/2÷2/5

L/W = 3/2 * 5/2

L/W = 15/4

L = 15/4 W

Hence the length is 15/4 times greater than the width

Answer:

22.13

Step-by-step explanation:

Given that :

Initial quantity = 590

Decay rate = 55% per year

Value of the quantity after 21 months to the nearest hundredth

If decât rate per year = 55%

Monthly rate of Decay = 55% / 12 = 0.0458333

Hence, quantity after 21 months :

Initial amount - (Initial amount * 21(monthly Decay rate))

590 - (590 * 21(0.0458333))

590 - 567.874587

= 22.125413

= 22.13 (nearest hundredth)

Answer:

\approx 225.34

≈225.34

Step-by-step explanation:

Answer:

-0.2z

Step-by-step explanation:

0.4z-0.6z

-0.2z

Answer:

The answer for this as a fraction would be 1260/1

Step-by-step explanation:

63 ÷ 5/100

Answer:

1260/1

Step-by-step explanation:

Answer:

The two piles will still be equal in value

Step-by-step explanation:

From the question,

Sven has $1 and a dime in his pile, and

Dayna has 11 dimes in her pile.

Now,

If Sven gives Dayna $1 and Dayna gives Sven ten dimes,

To determine if the two piles will still be equal in value,

First, we will determine what each of Sven and Dayna has presently.

For Sven,

He has $1 and a dime, he gives out $1 and received ten dimes, that means

$1 + 1 dime - 1$ + 10 dimes = 11 dimes

Now, Sven has 11 dimes with him

For Dayna,

She has 11 dimes, she gave out 10 dimes and received 1$, that means

11 dimes - 10 dimes + $1 = $1 and a dime

Now, Dayna has $1 and a dime.

To determine if the two piles will still be equal, we will convert Dayna's dollar ($) to dimes

(NOTE: 10 dimes make a dollar, that is, 10 dimes = $1)

Dayna has $1 and a dime,

$1 + 1 dime = 10 dimes + 1 dime = 11 dimes

∴ She has 11 dimes.

Since, Sven has 11 dimes as well,

Hence, the two piles will still be equal in value.

Answer:

20 minutes

Step-by-step explanation:

Step one:

given

Tantastic charges

reservation fee= $20

charges per minute= $1

let the number of minutes be x

and the total charges be y

y=x+20

BetterSun charges

charges per minute= $2

let the number of minutes be x

and the total charges be y

y=2x

Required:

how many minute will dey charge the same amount

x+20=2x

2x-x=20

x=20 minutes

Answer:

B

Step-by-step explanation:

you divide 18.26 by 105 to find the unit rate

Answer:

I have researched a bit on it and I think the answer is A but if I am wrong I am sorry I really tried and I am just trying to get done with my question and I did not guess I promise.

Answer:

x-intercept(s): ( 8 , 0 )

Step-by-step explanation:

Answer:

x-intercept(s):

( 8,0)

Step-by-step explanation:

To find the x-intercept, substitute in

0

for

y

and solve for

x

. To find the y-intercept, substitute in

0

for

x

and solve for

y

.

.

Answer:

I'll talk to you!

Step-by-step explanation:

Answer:

See below.

Step-by-step explanation:

5a)

In an isosceles triangle, the angles opposite the congruent sides are congruent.

m<A = 40 deg

m<B = 40 deg

m<A + m<B + m<C = 180

40 + 40 + m<C = 180

m<C = 100 deg

5b)

In a right triangle, one angle is a right angle.

m<A = 40 deg

m<B = 90 deg

m<A + m<B + m<C = 180

40 + 90 + m<C = 180

m<C = 50 deg

Answer:

to elect a new representative for their state

Step-by-step explanation

nice day to ya fellas

To ask the government to help fix a problem.

Petitioning the government is a formal request to ask the government to put action into something to help fix a problem or start something new.

Answer: 1

1/2 + -1/2 = 1/2

Answer: its c

Step-by-step explanation:

distribute the number on the outside of the parenthesis.

Answer

524 workers are still there

Answer:

Beth and Joradan are 4 miles from the point at where they started (on the same road).

Step-by-step explanation:

Answer:

cool

Step-by-step explanation: