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
Stolb23 [73]
3 years ago
11

The solution to an equation is 21

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0
An solution to an equation = 21 would be something like 2p + 7

if you wanna know how to solve this 
here is how:
<span>Simplifying 2p + 7 = 21 Reorder the terms: 7 + 2p = 21 Solving 7 + 2p = 21 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2p = 21 + -7 Combine like terms: 7 + -7 = 0 0 + 2p = 21 + -7 2p = 21 + -7 Combine like terms: 21 + -7 = 14 2p = 14 Divide each side by '2'. p = 7 Simplifying p = 7</span>
You might be interested in
Find the value of 15.0 N in pounds. Use the conversions 1slug=14.59kg and 1ft=0.3048m .
Sliva [168]

The value of 15.0 N in pounds = 3.375 lb

<h3><em>Further explanation </em></h3>

The derivative magnitude is a quantity derived from the principal amount

7 main quantities have been determined based on international standards, namely:

  • 1. Length, meters (m)
  • 2. Time, second (s)
  • 3. Mass, kilograms (kg)
  • 4. Temperature, kelvin (K)
  • 5. Light intensity, candela (cd)
  • 6. Electric current, ampere (A)
  • 7. Amount of substance, mol (m)

Newton (N) is one unit of force (F) which is a quantity derived from mass (m), length (l) and time (s)

Newton can be expressed in terms of Kg m / s²

Formula used:

F = m. a

N = kg. m / s²

In the British system there are units of slug, feet, and pounds so that the unit of force becomes:

F = m. a

Lb = slug. ft / s²

The relationship between the two-unit systems above is:

1 kg = 0.0685 slug

1 slug = 14.59 kg

1 newton = 0.225 lb

1 lb = 4,448 newtons

1 ft = 0.3048 m

So if we change 15 N to lb by using slug and ft

15 N = 15 * (1 / 14.59) slug * (1 / 0.3048) ft / s²

15 N = 3,375 slug ft / s ²

15 N = 3,375 lb

or we convert directly:

15 N = 15 * 0.225 lb

15 N = 3,375 lb

<h3><em>Learn more </em></h3>

yard conversion

brainly.com/question/2479097

the quantity 0.0075 meters expressed in centimeters

brainly.com/question/2867118

A vineyard has 145 acres of Chardonnay grapes

brainly.com/question/982615

Keywords: slug, Newton, feet, kg, pound

6 0
3 years ago
Brainlyst for the best answer thank you!
densk [106]
Answer: B

We all know that area= LxW
The width that is being shown is 8ft. The length is 20ft. Therefore, you multiply 8 x 20 which gives you 160ft squared. Hope this this helps :)
6 0
3 years ago
Work out the value 3x10^-5 x 40,000,000 give you answer in standard form​
Olenka [21]

<u>★ Solution:</u>

➣ {\sf{3\:x\:10^{-5}\:x\:4\:x\:10^7

➣ {\sf{(3\:x\:4)\:x\:(10^{-5+(-7)})

➣ {\sf{12\:x\:10^2

➣ {\sf{1.2\:x\:10^3

3 0
3 years ago
Given the points a to zero 8, 0 what scale factor is applied to the create this change​
Ganezh [65]

Answer:

4

Step-by-step explanation:

(2, 0) to (8, 0) is a 4/1 scale factor because 8/2 = 4

6 0
3 years ago
About 543 out of every 1,000 people in United States owned a cell phone in 2003.In japan,the are was 68 for every 100 people.How
Softa [21]

Answer:

The greater percent of cell phone ownership in Japan than the U.S was <u>13.7%</u>.

Step-by-step explanation:

Given:

About 543 out of every 1,000 people in United States owned a cell phone in 2003.

In japan,the are was 68 for every 100 people.

Now, to find the greater percent of cell phone ownership in Japan than the U.S.

So, to get the percent of people owned cell phone in United States:

\frac{543}{1000}\times 100

=0.543\times 100

=54.3\%.

Now, to get the percent of people owned cell phone in Japan:

\frac{68}{100} \times 100\\\\=0.68\times 100\\\\=68\%.

So, to get the percent greater of cell phone ownership in Japan than the U.S we subtract the percent of people owned cell phone in United States from the percent of people owned cell phone in Japan:

68\%-54.3\%\\\\=13.7\%.

Therefore, the greater percent of cell phone ownership in Japan than the U.S was 13.7%.

5 0
3 years ago
Other questions:
  • Plz help don't get it
    12·1 answer
  • Need help please, does any one know how to do this​
    12·1 answer
  • Evaluate the expression.
    12·2 answers
  • Please help with #7! Thanks.
    7·1 answer
  • Find the measure of angle x in the figure below<br>67 61<br>у<br>X<br>67​
    14·2 answers
  • How to do this? And the answer
    5·1 answer
  • Annette has finished 20 of her homework problems. That is 80% of the total assinged by her math teacher. How many pronlems were
    13·1 answer
  • Hi please help me fast
    12·1 answer
  • FIRST GETS BRAINLEST __ Several tourists are participating in different
    15·2 answers
  • Factor with GCF<br> 3x^2y + 6xy - 9xy^2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!