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
jok3333 [9.3K]
3 years ago
11

4 (a+3)=36 show all steps

Mathematics
1 answer:
PtichkaEL [24]3 years ago
5 0
4(a+3)=36
Delete the parentheses, multiplying with the number of outside, making the set of signals
4a + 12 = 36

Number with incognito are to the left of the equality and numbers without incognito are to the right, remembering that when changing of side changes the signal.

4a = 36 - 12
4a = 24
a =  \frac{24}{4}
\boxed{a = 6}

Confirm that the solution is correct:
4(a+3)=36
4(6+3)=36
4(9)=36
36=36 (TRUE)

Answer:
\boxed{a = 6}

You might be interested in
If a dart board was thrown randomly at the dartboard shown below, what is the probability that it will land in the bull’s-eye? T
vampirchik [111]

Answer:

Correct option: C -> 2%

Step-by-step explanation:

To find this probability we just need to divide the area of the bull's-eye circle by the total area of the outer circle.

The area of a circle is given by the equation:

area = \pi * radius^2

The outer radius is 14 cm, so:

outer\ area = \pi * 14^2 = 196\pi\ cm^2

The inner radius is 2 cm, so:

inner\ area = \pi * 2^2 = 4\pi\ cm^2

So the probability is:

inner\ area / outer\ area = 4\pi / 196\pi = 0.02 = 2\%

Correct option: C

3 0
3 years ago
Carbon-14 has a half-life of 5,700 years. Scientists use this fact to determine the age of things made of organic material. Supp
kumpel [21]
I think it’s b! hearts
8 0
3 years ago
Complete the following statement.
Svetradugi [14.3K]

Answer:

if p ( x ) = x^2 + 7 x + 3 is divided by x + 4, the remainder is -9

Step-by-step explanation:

We need to find the remainder if p ( x ) = x^2 + 7 x + 3 is divided by x + 4

Dividing p ( x ) = x^2 + 7 x + 3 by x + 4

The division is shown in figure attached.

The remainder = -9

The quotient = x+3

So, if p ( x ) = x^2 + 7 x + 3 is divided by x + 4, the remainder is -9

3 0
3 years ago
A truck cost $21,000.00 with an estimated salvage value of $1,000.00. It has an estimated useful life of 5 years. If the truck w
taurus [48]
Straight line depreciation applies the same amount of depreciation in each year.
Our Depreciation Base is 21,000 - 1,000 = 20,000
The useful life is 5 years, so each year we depreciate 20,000 ÷ 5 = 4,000

Book Value is Cost - Accumulated Depreciation
After Year 1: 
Book Value = 21,000 - 4,000 = 17,000

Answer is A) 17,000
6 0
3 years ago
We have two varieties of concrete that we can mix together. One is 5% water and 95% concrete mix, and the other is 20% water and
Orlov [11]

Answers:

  • <u>20 pounds</u> of the 95% concrete mix
  • <u>10 pounds</u> of the 80% concrete mix

=================================================

Explanation:

x = amount of the 95% concrete mix

y = amount of the 80% concrete mix

Type A mix has 95% concrete. If we have x pounds of this, then 0.95x pounds is pure concrete. Type B mix has 80% concrete. If there are y pounds of this, then 0.80y pounds is pure concrete.

So far we have 0.95x+0.80y pounds of pure concrete from the two mixes

Divide this over 30 to get (0.95x+0.80y)/30

Setting this equal to 0.90 means we want the final mix to be 90% concrete.

Since we want 30 pounds total, we can say x+y = 30 which solves to y = 30-x. We'll use this later

-------------------------------

(0.95x+0.80y)/30 = 0.90

0.95x+0.80y = 30*0.90 .... multiply both sides by 30

0.95x+0.80y = 27

0.95x+0.80(30-x) = 27 ..... plug in y = 30-x

0.95x+0.80*30-0.80*x = 27

0.95x+24-0.80x = 27

0.15x+24 = 27

0.15x = 27-24 ..... subtracting 24 from both sides

0.15x = 3

x = 3/0.15 ........... dividing both sides by 0.15

x = 20

y = 30-x

y = 30-20

y = 10

5 0
2 years ago
Other questions:
  • Calculate the area of a circle with a radius of 2 cm and a circle with a radius of 4 cm. Leave your answers in terms of pi.
    10·1 answer
  • 18% of what number is 43?
    10·2 answers
  • OMG!!??!!?? SCIENTISTS TRANSFORM 6IX9INE INTO A RAT?!??????!!?! LOOK AT HIM!!!!!!!!​
    5·1 answer
  • Marcus drew a line from point Y to point W in the rectangle shown below. He created two identical triangles. Classfy the triangl
    7·1 answer
  • Bens home improvement loan to build a security fence around his property was for $1,800.00 at 5.00% interest for 12 months. Afte
    5·1 answer
  • What is the MOST specific name for quadrilateral WXYZ?
    12·1 answer
  • Solve the following one-step inequality : -12+x ≥9 <br> I GIVE BRAINLEST I KNOW I SPELL WRONG
    8·2 answers
  • If 6 times a number = 3 times the same number,<br> that number must be this.
    8·1 answer
  • At the corner store, you can buy 10 super-size granola bars for $20. How much does a
    5·2 answers
  • Write a function for the tranformations described below:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!