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3 years ago

Could anyone tell me if I’m right. This is a gradient of a line question

Mathematics

1 answer:

pshichka [43]3 years ago

3 0

Answer:

See Below (it is correct)

Step-by-step explanation:

First point given ---- A(-3,0)

2nd point given ----- B(4,0)

The slope is the "change in quantity y" divided by "change in quantity x"

The change would be from 2nd point to 1st point. So,

Change in quantity y is 0 - 0 = 0

Change in quantity x is 4 - (-3) = 4 + 3 = 7

So, slope would be:

Slope = 0/7 = 0

The slope is 0 (which means it is a horizontal line)

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an adult elephant that is 10ft tall casts a shadow that is 15ft long. find the length of the shadow that a 8ft telephone booth c

nadya68 [22]

Answer:

The length of the shadow the telephone booth is <u>12 ft</u>.

Step-by-step explanation:

Given:

An adult elephant that is 10 ft tall casts a shadow that is 15 ft long.

The length of the telephone booth is 8 ft.

Now, to find the length of the shadow the telephone booth casts.

Let the length of the shadow the telephone booth be $x.$

As given, an adult elephant that is 10 ft tall casts a shadow that is 15 ft long.

So, 10 ft is equivalent to 15 ft.

Thus, 8 ft is equivalent to $x.$

Now, to get the length of the shadow of the booth we get cross multiplication method:

$\frac{10}{15} =\frac{8}{x}$

<em>By cross multiplying we get:</em>

$10x=120$

<em>Dividing both sides by 10 we get:</em>

$x=12.$

Therefore, the length of the shadow the telephone booth is 12 ft.

3 0

4 years ago

~~~99 POINTS~~~

Elena-2011 [213]

Percent means parts out of 100, remember that

12% off

12% off means 100%-12%=88%
find 88% of that
then take 3% and addd that
3% off of 100=100+3=103% of that

then

so original price=p
find 88% of that then 103% of that

p*0.88*1.03=final cost
p*0.9064=final cost
0.9064p=final cost

3 0

4 years ago

Read 2 more answers

What is the average speed of a biker if she biked 4 1/4 of a mile in 25 minutes?

nata0808 [166]

Answer:

Step-by-step explanation:

What is the average speed of a biker if she biked 4 1/4 of a mile in 25 minutes?

-----------------

rate = distance/time

-----

rate = (17/4)/(25/60) = (17/4)(60/25) = (17*3/5) = 51/5 = 10.2 mph

----------------

5 0

3 years ago

Read 2 more answers

Who wants to vibe with me:))

ale4655 [162]

Answer:

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8 0

3 years ago

Read 2 more answers

HELP When 2((Three-fifths x + 2 and three-fourths y minus one-fourth x minus 1 and one-half y + 3)) is simplified, what is the r

lesya692 [45]

Answer:

<h2> StartFraction 7 over 10 EndFraction x + 2 and one-half y + 6</h2>

Step-by-step explanation:

Given the expression $2(\frac{3x}{5}+2\frac{3y}{4}-\frac{x}{4}-1 \frac{1}{2}y+3)$

To simplify the expression, we need to first collect the like terms of the functions in parentheses as shown;

$= 2(\frac{3x}{5}-\frac{x}{4}-1 \frac{1}{2}y+2\frac{3}{4}y+3)\\= 2(\frac{3x}{5}-\frac{x}{4}- \frac{3}{2}y+\frac{11}{4}y+3)\\$

Then we find the LCM of the resulting function

$= 2(\frac{3x}{5}-\frac{x}{4}- \frac{3}{2}y+\frac{11}{4}y+3)\\= 2(\frac{12x-5x}{20} - (\frac{6y-11y}{4})+3)\\= 2(\frac{7x}{20}- (\frac{-5y}{4})+3 )\\= 2(\frac{7x}{20}+ \frac{5y}{4}+3 )\\= \frac{7x}{10} + \frac{5y}{2} +6\\= \frac{7x}{10} + 2\frac{1}{2}y+6\\$

The final expression gives the required answer

7 0

3 years ago