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madreJ [45]
2 years ago
13

Two increased by a number is dozen. Find the number.

Mathematics
1 answer:
mylen [45]2 years ago
4 0
To solve this problem, you can make an equation.

two plus that number equals a dozen, so we can write it like this:

2 + n = 12

subtract 2 from both sides

n = 10.

the number is 10
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Hello, this is math and I need help ❤️ pls and ty ONLY SERIOUS ANSWERS
Greeley [361]

The bicycle with a 30-inches diameter rolls approximately 28.8 more than a tire with the diameter with 21-inches.

<u><em>How to solve:</em></u>

  • First use the formula: C = 3.14d
  • Replace the d value with 30 and solve the equation:

C = 3.14 x 30    ⇒   94.2477796077

  • Then solve the equation again but 21 as the d value:

C = 3.14 x 21     ⇒   65.9734457254

  • Then subtract 65.9734457254 from 94.2477796077 to get the approx. answer of 28.8

3 0
2 years ago
Select the correct answer.
Alex73 [517]
C. 7.2°F is warmer than 7.0°F but colder than 7.6°F.
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2 years ago
What is X equal to? PS it’s not 180
AVprozaik [17]

Answer:

x = 47

Step-by-step explanation:

86° and 2x° are supplementary angles, which means that added together they should equal 180° (which is a line). Aka

86 + 2x = 180 (Let's solve for x) (subtract both sides by 86 to get x on one side)

2x = 94 (divide both sides by 2 to get x by itself)

x = 47

7 0
2 years ago
Solve the equation<br> 5х + 8 – 3x = -10<br><br> x=-9<br> x=-1<br> x=1<br> x= 9
enyata [817]
The answer is -9. Have a great day
4 0
2 years ago
Read 2 more answers
The difference between a number squared, and that same number is 30. What is the number
Volgvan

Answer:

n^2 = n + 30

n^2 -n -30 = 0

Solving by quadratic formula

numbers equal 6 AND -5  

DOUBLE -CHECK

6^2 -6 -30 = 0

36 -6 - 30 = 0 CORRECT

-5^2  - -5 -30 = 0

25 +5 -30 = 0 CORRECT

Two numbers 6 and -5

Step-by-step explanation:

6 0
3 years ago
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