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
Vika [28.1K]
3 years ago
9

8(a + 30)=80 a equals how much?

Mathematics
2 answers:
Aleksandr [31]3 years ago
4 0

Answer:

a = -20

Step-by-step explanation:

In this question, you would solve for "a".

Solve:

8(a + 30)=80

Use the distributive property.

8a + 240 = 80

Subtract both sides by 240

8a = -160

Divide both sides by 8.

a = -20

Your final answer would be a = -20

OLEGan [10]3 years ago
4 0

Answer:

a=-20

Step-by-step explanation:

Multiply 8 by a and 30 which is 8a and 240

The equation looks like this:

8a+240=80

Subtract 240 on both sides:

8a+240-240=80-240

The equation looks like this now:

8a=-160

Divide by 8 on both sides:

8a/8=-160/8

The answer will be:

a=-20

You might be interested in
Given z=4+3i evaluate z​
DerKrebs [107]

Answer:

5

Step-by-step explanation:

Assuming we want to evaluate |z|, given that, z=4+3i.

Then, by definition of modulus,

|x + yi|  =  \sqrt{ {x}^{2} +  {y}^{2}  }

|4+ 3i|  =  \sqrt{ {4}^{2} +  {3}^{2}  }

|4+ 3i|  =  \sqrt{ 16+  9 }  \\ |4+ 3i|  =  \sqrt{25 }  \\ |4+ 3i|  = 5

Therefore the modulus be of the given complex number is 5 units

5 0
3 years ago
the volume of a cylinder is 1,356.48^ feet. If the diameter is 12 feet, calculate the height of the cylinder.
Olin [163]

Answer:

11.99 ft

Step-by-step explanation:

The formula for the volume of a cyl. of radius r and height h is V = πr²h.

Solving this immediately for h yields:

         V

h = ----------

         πr²

Inserting the known quantities results in:

         V           1356.48 ft³

h = ---------- = ----------------------      Note that r = (1/2)d, so r = (1/2)(12 ft) = 6 ft

         πr²         3.14159 (6 ft)²

   =   11.994 ft

The height of the cyl. is 11.99 ft (to the nearest hundredth foot)

4 0
3 years ago
If you know two corresponding sides of two triangles and you know that the corresponding angles are equal, how can you find out
____ [38]
Answer - C. The ratio of the corresponding sides will be equal

Two triangles<span> can be shown to be </span>similar<span> if it can be proven that they have two sets of corresponding sides in equal proportion and that the corresponding angles, which they include are congruent.</span>
6 0
3 years ago
waiter had 12 tables he was waiting on, with six women and three men at each table. How many total customers did the waiter have
dusya [7]

Answer:

12(6 + 3)

72 + 36

108

108 people

8 0
3 years ago
Simplify 4a+a+6a <br> Help!!!
maw [93]

Your answer here is 11a

5 0
3 years ago
Read 2 more answers
Other questions:
  • Stephen is baking cookies for his school bake sale. He bakes 300 cookies.
    6·1 answer
  • The are of the shape is __ square centimeter
    13·1 answer
  • You are preparing coffee for the breakfast. For every tablespoon of coffee you use 120ml of water. How many tablespoons of coffe
    14·2 answers
  • In ΔKLM, l = 26 cm, k = 56 cm and ∠K=22°. Find all possible values of ∠L, to the nearest degree.
    10·1 answer
  • Someone help and plz make sure it’s right :)
    13·2 answers
  • What’s 6.4 rounded to the nearest 10th
    6·2 answers
  • Triangle ADE is enlarged to form triangle ABC. What is the scale factor?
    7·1 answer
  • What is the sum of | 12 | and | 9 |?​
    10·2 answers
  • A bag contains 40 coins, all of them are either 2 cent or 5 cent coins. If the value of the money in the bag is $1.55, find the
    7·1 answer
  • To the nearest foot, what amount of fencing is needed to surround the perimeter of the flower bed? 17 feet 33 feet 40 feet 50 fe
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!