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4 years ago

how to find out what (p) means in Kara's backpack contains 4 boxes of pencils. Each box contains p pencils

Mathematics

2 answers:

Pavel [41]4 years ago

6 0

P means the amount of pencils

yuradex [85]4 years ago

5 0

This question doesn't provide enough information for you to get it exact number, but what it does provide is saying that in every four boxes there are pencils, in all of those pencils equals P

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What does rationalize mean?

Lisa [10]

Answer:

it means moving the square root thats in the bottom of the fraction (the denominator) to the top of the fraction (the numerator)

Step-by-step explanation:

For example:

$\frac{4}{\sqrt{x}}$ × $\frac{\sqrt{x} }{\sqrt{x} }$ = $\frac{4\sqrt{x} }{x}$

6 0

3 years ago

Read 2 more answers

What is x <br> x+2 1/2=10

vredina [299]

X would =18 because 18+2= 20
20 x .5 = 10
X = 18

5 0

3 years ago

Geometry help please

Nana76 [90]

Answer:

CED = 117

Step-by-step explanation:

21x +21 = 7x +49

21x - 7x = 49 - 21

14x = 28

x = 28/14

x = 2

7x + 49

=7(2) + 49

=14 + 49

=63

180 -63 = 117

CED= 117

8 0

3 years ago

Read 2 more answers

Consider the line y=9x-8

jasenka [17]

Answer:

y=9x+75

Step-by-step explanation:

since we know that the slope must be the same for two lines to be proportional, we are gonna start there.

so our equation is: y= 9x + b

we need to find b to complete our equation, so substitute in the points we were given.

3 = 9(-8) + b

so now,

3 = -72 + b

now we have to isolate b to find out what it is,

3 = -72 + b

+72 +72

so now: 75= b

Put that back into the starting equation: y = 9x + 75

7 0

3 years ago

Flying to Kimpala with a tail wind a plane averaged 158km/hr. On the return trip the plane only average 112km/hr. While flying b

lora16 [44]

The speed of wind and speed of plane in still air are 23 and 135 km/h respectively.

<u>Step-by-step explanation:</u>

Let the speed of wind and speed of plane in still air are w and p km/h respectively.

The effective speed on onward journey was

$p+w=158$ ................(1)

The effective speed on return journey was

$p-w=112$ ..............(2)

Adding equation (1) and equation (2) we get,

⇒ $(p+w)+(p-w) = 158+112$

⇒ $2p = 270$

⇒ $p = 135$

Putting value of $p = 135$ in $p+w=158$ we get:

⇒ $p+w=158$

⇒ $135+w=158$

⇒ $w=23$

Therefore ,The speed of wind and speed of plane in still air are 23 and 135 km/h respectively.

3 0

3 years ago