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4 years ago

Sean was at batting practice. He swung 25 times but only hit the ball 15 times.

Mathematics

2 answers:

meriva4 years ago

6 0

Answer:

Step-by-step explanation:

natita [175]4 years ago

5 0

Answer:

answered

Step-by-step explanation:

Sean swung 25 times but only hit the ball 15 times.

ratio of hits to the swings = $\frac{15}{25}$

= $\frac{3}{5}$

one more ratio= 6/10

b) out of 5 shots taken by the soccer player only 3 could enter the goal post.

out of the 10 terrorist Seal agents could catch only 6 of them rest fled away.

c) There are total 30 balls to be distributed between Sam and Harry in the ratio of 3:5 respectively. Find out how many balls did each got?

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Which expression is equivalent to (−7x+8x+19y)−(6y+8−20x−16y)?

Kisachek [45]

Answer:

21x + 29y - 8

Step-by-step explanation:

(−7x+8x+19y)−(6y+8−20x−16y)

−7x+8x+19y−6y-8+20x+16y

(−7x+8x+20x)+(19y−6y+16y)-8

21x + 29y - 8

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2 years ago

Difference between Simple Intrest and Compound Intrest

gayaneshka [121]

Simple interests will only take into account the principle, but compound interest adds money to interest earned AND the principle.

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3 years ago

Read 2 more answers

Which pair of lines is parallel? A. y=4x+1 and y+4=5 B. y=-2+x and 2y-2x=-2 C. y=1/4x + 2 and y-2=1/2x D. y=1/5x+1 and 5y+x= 10

sdas [7]

Answer:

B. y=-2+x and 2y-2x=-2

Step-by-step explanation:

Two lines are parallel if they have the same slope.

The equation 0of a line is tipically written as y=mx + b, where 'm' represents the slope and 'b' the y-intercept.

Let's evaluate each of the options:

A. y=4x+1 and y+4x=5

Writing the equations in the slope-intercept form, we get:

y=4x+1 → m=4

y=5-4x → m=-4

Given that they have different slopes, they are not parallel.

B. y=-2+x and 2y-2x=-2

Writing the equations in the slope-intercept form, we get:

y=-2+x → m=1

y=-1 + x → m=1

Given that the equations have the same slope, they are parallel.

C. y=1/4x + 2 and y-2=1/2x

Writing the equations in the slope-intercept form, we get:

y=1/4x + 2 → m=1/4

y=1/2x+2 → m=1/2

Given that they have different slopes, they are not parallel.

D. y=1/5x+1 and 5y+x= 10

Writing the equations in the slope-intercept form, we get:

y=1/5x+1 → m=1/5

5y+x= 10 → y=2 - 1/5x → m=-1/5

Given that they have different slopes, they are not parallel.

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3 years ago

Josie is getting her hair cut and styled. She wants to give a 20% tip to her stylist. If the haircut costs $15.00, how much tip

o-na [289]

$15.00 * 20% = $15.00 * 0.2 = $3.<span>00
the answer is </span>$3.<span>00</span>

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3 years ago

A potter forms a piece of clay into a cylinder. As he rolls it, the length, L, of the cylinder increases and the radius, r, decr

stepan [7]

Answer:

The radius is decreatsing at a rate 0.78 cm per second.

Step-by-step explanation:

We are given the following in the question:

$\dfrac{dl}{dt} = 0.7\text{ cm per second}$

Instant radius,r = 2 cm

Instant length,l = 9cm

The radius of the cylinder decreases.

Volume of cylinder =

$V =\pi r^2l$

Since the volume of the cylinder does not changes, we can write:

$\dfrac{dV}{dt}=0$

Rate of change of volume:

$\dfrac{dV}{dt} = \pi(2r\dfrac{dr}{dt}l + r^2\dfrac{dl}{dt})$

Puttiung values, we get

$0 = \pi(2(2)\dfrac{dr}{dt}(9) + (2)^2(0.7))\\\\\dfrac{dr}{dt}=-\dfrac{4\times 0.7}{4\times 9} \approx -0.78$

Thus, the radius is decreatsing at a rate 0.78 cm per second.

5 0

4 years ago