All categories

3 years ago

How do you do the problem -4p+9=-5

Mathematics

2 answers:

Elena-2011 [213]3 years ago

6 0

-4p+9=-5
-9 -9
-4p=-14
divide the entire thing by -4
p=3.5
Hope this helps!

rusak2 [61]3 years ago

6 0

Subtract 9 to the -5 so its -4p = -14
then divide

You might be interested in

Hey! Can someone check my answers?

Andrew [12]

The greatest common factor is the biggest number taken from the values.

Q1. The answer is <span>A. 5y^6
</span>
$20 y^{9} +5 y^{6}= 4*5 y^{9}+5 y^{6}$
Since $x^{a}* x^{b} =x^{a+b}$ , then $x^{9}= x^{3}* x^{6}$

Back to our expression:
$4*5 y^{9}+5 y^{6}=4*5 y^{3}*y^{6}+5 y^{6}=4 y^{3}*5y ^{6}+ 5y ^{6}*1=5 y^{6} (4y ^{3} +1)$
The greatest common factor is thus $5 y^{6}$

Q2. The answer is <span>D. 12xy^2
</span>
$12x y^{5}+60 x^{4} y^{2} -24 x^{3} y^{3}=12x y^{5}+5*12 x^{4} y^{2} -2*12 x^{3} y^{3}$
We will use the rule $x^{a}* x^{b} =x^{a+b}$ to factorise the exponents:
$12x y^{5}+5*12 x^{4} y^{2} -2*12 x^{3} y^{3}= \\ =12x*y^{2}*y^{3}+5*12*x* x^{3} *y^{2}-2*12x* x^{2} *y*y^{2}= \\ =12xy^{2}*y^{3}+12xy^{2}*5 x^{3} -12xy^{2}*2 x^{2} y= \\ =12xy^{2}(y^{3}+5 x^{3}-2 x^{2} y)$
The greatest common factor is thus $12xy^{2}$

3 0

4 years ago

How many days in january

sasho [114]

There are 31 days in january

7 0

3 years ago

Read 2 more answers

A boat traveled in a river upstream for a distance of 30 miles at a constant rate, r, in miles per hour, and then made the retur

ICE Princess25 [194]

Answer:

Step-by-step explanation:

r = boat's rate

c = current's rate

1. A boat traveled in a river upstream for a distance of 30 miles. Travelling upstream, the current obstructs the movement, so the actual boat's rate is r - c mph.

If the boat took 4 hours to travel upstream, then

$\dfrac{30}{r-c}=4\\ \\4(r-c)=30\\ \\4r-4c=30$

2. A boat traveled in a river downstream for a distance of 30 miles. Travelling downstream, the current helps the movement, so the actual boat's rate is r + c mph.

If the boat took 3 hours to travel downstream, then

$\dfrac{30}{r+c}=3\\ \\30=3(r+c)\\ \\3r+3c=30$

So, we get the system

4r-4c=30

3r+3c=30

8 0

4 years ago

Please answer for question 8 and A and B

Andreyy89

Answer:

MD: 242 364 7480

Ps: TYSON all can come for talking about frieenship

7 0

3 years ago

Read 2 more answers

Is this correct if not which one is and why

zheka24 [161]

I believe the smallest would be D since even though B is a decimal with a lot of zeros in front of the #, B is still a positive # and D is a negative number being lower in the # line, so D or -200 would be the smallest

4 0

3 years ago