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3 years ago

Please help me with this, and thx in advance

Mathematics

1 answer:

lianna [129]3 years ago

5 0

X + 5 = 20 is the answer

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Karli's shadow is 60inches long. A nearby fire hydrant cast a shadow 40inches Long. If Kali is 48 inches tAll what is the height

Naily [24]

This question involves ratios.You will use them as fractions.

60:40

48:x

You will need to solve for x, so make fractions.

60/48 = 40/x

Now you'll cross multiply:

1920 = 60x

Divide both sides by 60.

1920/60 = 32.

The fire hydrant is 32 inches tall.

3 0

3 years ago

Solve 5x(x-6)(4x+9)=0

xxTIMURxx [149]

Greetings and Happy Holidays!

Solve for x.
$5x(x-6)(4x+9)=0$ <span>

Distribute the parenthesis:
</span> $5x(x-6)(4x+9)=0$

$(5x^2-30x)(4x+9)=0$

$(20x^3-120x^2)+(45x^2-270x)=0$

Combine like terms:
$20x^3-75x^2-270x=0$

Factor out GCF (5x):
$5x(4x^2-15x-54)=0$

Factor the Complex Trinomial:
$5x(4x^2+9x-24x-54)=0$

$5x(x(4x+9)-6(4x-9))=0$

$5x((4x+9)(x-6))=0$

Set Factors to Equal 0:
$5x=0$

$x=0$

or

$4x+9=0$

$4x=-9$

$x=\frac{-9}{4}$

or

$x-6=0$

$x=6$

The Answers Are:
$\boxed{x=0} \\ \boxed{x= \frac{-9}{4}} \\ \boxed{x=6}$

I hope this helped!
-Benjamin

8 0

3 years ago

Need help ASP TWT……….

Ksivusya [100]

Answer:

C srry if im wrong

Step-by-step explanation:

6 0

3 years ago

5. The sum of two numbers is 24. Five times the first number minus the second

photoshop1234 [79]

Answer:

6 and 18

Step-by-step explanation:

a+b=24

5a-b=12

5a+a=6a

24+12=36

6a=36 so A on it's own is 6

24-6=b

b=18

hope this helps!

8 0

3 years ago

Read 2 more answers

The sum of 6 consecutive integers is 270. What is the second number in the sequence?

Rina8888 [55]

N+(n+1)+(n+2)+(n+3)+(n+4)+(n+5)=270
We use these terms to represent the first six consecutive integers in the sequence
Now we group like terms:
6n+15=270
Minus 15 from both sides of the equation
6n=255
n=42.5 which is not an integer
Is this a joke question?
Besides that, the 2nd number will be 43.5

3 0

3 years ago