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
Sav [38]
3 years ago
6

Kayla's age is 3 less than twice her brothers age. Kayla's is 13. How old is her brother?

Mathematics
2 answers:
boyakko [2]3 years ago
7 0

let x is her brother's age

Kayla's age is 3 less than twice her brothers age: 2x - 3

and

Kayla is 13

so

2x - 3 = 13

add 3 to both sides

2x - 3 + 3 = 13 + 3

simplify

2x = 16

divide both sides by 2

2x/2 = 16/2

x = 8


So her brother's age is 8 years old

proof:

2x - 3

= 2 (8) - 3

= 16 - 3

= 13


zvonat [6]3 years ago
3 0
<span>2b - 3 = 13 So it will be 8 .So her brother is 8</span>
You might be interested in
If 1/3 of students in a class like school and 1/3 of those that like school, like science, what is the fraction of students that
Amiraneli [1.4K]
1/3 multiplied by 1/3, which is 1/9
:)
5 0
3 years ago
Read 2 more answers
9 times 27 + 2 times 31-28 = n what is the value of n
Andrews [41]
9×27+2×31-28= n
243+62-28=n
277=n
n=277
8 0
3 years ago
Read 2 more answers
What is the solution to the equation? 1/2n + 3 = 6​
yawa3891 [41]

Answer:

n = 6

Step-by-step explanation:

1/2n + 3 = 6

1/2n = 3

n = 6

4 0
2 years ago
A weather forecast says that there is a 40% chance of rain today find the odds against rain
san4es73 [151]

Answer:

60%

Step-by-step explanation:

100%-40%-60%

4 0
2 years ago
Solve the following problems:
liq [111]

Answer:

  • Q1. 42 liters
  • Q2. Php. 330  

Step-by-step explanation:

Question 1

<u>Use ratios to solve:</u>

  • 12/100 = x/350
  • x = 12*350/100
  • x = 42 liters

Question 2

  • 1 basket → 5 1/2 kg ⇒ 2 baskets → 2(5 1/2) = 11 kg
  • 1 kg → 30 ⇒ 11 kg → 11*30 =  330  

Mutya earned Php. 330  

4 0
2 years ago
Other questions:
  • What is the approximate value of the hypotenuse?
    8·2 answers
  • A race is 10 kilometers long. Markers will be placed at the beginning and end of the race-course and at each 500-meter mark. How
    13·2 answers
  • Solve the inequality.Explain all steps and Identify the properties used. n/-3 + 5&gt;4
    6·2 answers
  • Which of the following is a solution y=3x-1<br> A.(4,1)<br> B.(2,5)<br> C.(4,3)<br> D.(0,-3)
    5·1 answer
  • How many grams are in 2.25 kilograms
    15·2 answers
  • 3(x+6)+8x how to do the 7th grade steps to get the answer
    7·2 answers
  • Using four different numerators, write an equation in which four fractions, when added, have a sum of 1.
    5·1 answer
  • Zoe bought 1.5 pounds of apples for $3.50 per pound. She wanted to find the total cost using partial products.
    12·1 answer
  • Suppose you were trying to gain an understanding of how the very best painter in an automotive factory works. You know that ther
    15·1 answer
  • Identify which values are solutions of 4x-7&gt;=-1
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!