1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vladimir1956 [14]
3 years ago
8

How to solve ( 3 × n ) + 4 = 32 ÷ 2

Mathematics
2 answers:
Bas_tet [7]3 years ago
6 0
(3 * n) +4 = 16
(3 * n) = 12
n = 4
LUCKY_DIMON [66]3 years ago
4 0
Incase that wasn't clear^.

32/2 = 16
So (3*N) + 4= 16
Subtract 4 from both sides
(3*N)=12
Divide both sides by 3.
N=12/3
12/3=4
N=4
You might be interested in
An item on sale costs 25% of the original price. If the original price was $60 , what is the sale price?
kow [346]

Answer:$45

Step-by-step explanation:

First you have to find 25% of 60

Which equals 15

60-15=45

$45

Hope this helped!!:D

6 0
3 years ago
Read 2 more answers
Use Cavalieri’s Principle to calculate the exact volume of an oblique cylinder with a height of 10 meters and a circular base wi
nirvana33 [79]

Answer: Volume of an oblique cylinder is 2011.43 sq.m.

Step-by-step explanation:

Since we have given that

Radius of a cylinder = 8 meters

Height of a cylinder = 10 meters

Cavelieri's Principle states that volume of an oblique cylinder is same as the volume of right circular cylinder with equal radius and height.

As we know the formula for "Volume of cylinder":

Volume=\pi r^2h\\\\V=\frac{22}{7}\times 8\times 8\times10\\\\V=\frac{14080}{7}\\\\V=2011.43

Hence, Volume of an oblique cylinder is 2011.43 sq.m.

7 0
3 years ago
Read 2 more answers
When Legs jumps 2 times and takes 13 steps forward, he lands in the same place as when he jumps 4 times and takes 5 steps backwa
tangare [24]

Answer:

9 steps

Step-by-step explanation:

Let x be the number of jumps

and y be the number of steps

So the first case

2x+13y

Second case

4x-5y

Both cover equal distances so

2x+13y=4x-5y

\Rightarrow 2x-4x=-5y-13y

\Rightarrow 2x=18y

\Rightarrow x=9y

So, one jumps is 9 steps.

4 0
3 years ago
On top of a hill, a rocket is launched from a distance 80 feet above a lake. The rocket will fall into the lake after its engine
kicyunya [14]
Are you trying to find the maximum height? The time it will be to reach the maximum height? I'm pretty confused at what you need help with right now
4 0
3 years ago
Read 2 more answers
Please help? I’m super lost...
babunello [35]

Answer:

Step-by-step explanation:

In all of these problems, the key is to remember that you can undo a trig function by taking the inverse of that function.  Watch and see.

a.  sin2\theta =-\frac{\sqrt{3} }{2}

Take the inverse sin of both sides.  When you do that, you are left with just 2theta on the left.  That's why you do this.

sin^{-1}(sin2\theta)=sin^{-1}(-\frac{\sqrt{3} }{2} )

This simplifies to

2\theta=sin^{-1}(-\frac{\sqrt{3} }{2} )

We look to the unit circle to see which values of theta give us a sin of -square root of 3 over 2.  Those are:

2\theta =\frac{5\pi }{6} and

2\theta=\frac{7\pi }{6}

Divide both sides by 2 in both of those equations to get that values of theta are:

\theta=\frac{5\pi }{12},\frac{7\pi }{12}

b.  tan(7a)=1

Take the inverse tangent of both sides:

tan^{-1}(tan(7a))=tan^{-1}(1)

Taking the inverse tangent of the tangent on the left leaves us with just 7a.  This simplifies to

7a=tan^{-1}(1)

We look to the unit circle to find which values of <em>a</em> give us a tangent of 1.  They are:

7\alpha =\frac{5\pi }{4},7\alpha =\frac{\pi }{4}

Dibide each of those equations by 7 to find that the values of alpha are:

\alpha =\frac{5\pi}{28},\frac{\pi}{28}

c.  cos(3\beta)=\frac{1}{2}

Take the inverse cosine of each side.  The inverse cosine and cosine undo each other, leaving us with just 3beta on the left, just like in the previous problems.  That simplifies to:

3\beta=cos^{-1}(\frac{1}{2})

We look to the unit circle to find the values of beta that give us the cosine of 1/2 and those are:

3\beta =\frac{\pi}{6},3\beta  =\frac{5\pi}{6}

Divide each of those by 3 to find the values of beta are:

\beta =\frac{\pi }{18} ,\frac{5\pi}{18}

d.  sec3\alpha =-2

Let's rewrite this in terms of a trig ratio that we are a bit more familiar with:

\frac{1}{cos(3\alpha) } =\frac{-2}{1}

We are going to simplify this even further by flipping both fraction upside down to make it easier to solve:

cos(3\alpha)=-\frac{1}{2}

Now we will take the inverse cos of each side (same as above):

3\alpha =cos^{-1}(-\frac{1}{2} )

We look to the unit circle one last time to find the values of alpha that give us a cosine of -1/2:

3\alpha =\frac{7\pi}{6},3\alpha  =\frac{11\pi}{6}

Dividing both of those equations by 3 gives us

\alpha =\frac{7\pi}{18},\frac{11\pi}{18}

And we're done!!!

8 0
3 years ago
Other questions:
  • Judy paid $120.96 for carpet for her room that is 144 square feet. Nathan liked the carpet she chose, but he wasn’t sure it woul
    12·2 answers
  • The ordered pair (, 4) is a solution to the equation y=5x-1.
    12·2 answers
  • If b= 5, then what 4^1•4^b is equal to?
    8·2 answers
  • A 16 ounce package of cereal cost $4.00?what is the unit cost
    7·2 answers
  • Robert painted 4/8 of each tile with green paint. He painted 52 tiles. What is the total amount of tiles that he painted green?
    14·1 answer
  • In ΔSTU, u = 220 cm, ∠T=145° and ∠U=18°. Find the length of s, to the nearest 10th of a centimeter
    5·1 answer
  • I want the answer, Please help me.
    10·1 answer
  • Jessica can shoot 10 photos in 10 minutes how may photes can she take in 1 hour
    12·2 answers
  • "<br> Use the following graph to determine the solution(s) of:<br> y= x^2- x - 6
    13·1 answer
  • The data recresent the results for a test fx a certain discesa. Assume che ritual from the group is ratasty sieded. Fedtreprobab
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!