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
kozerog [31]
3 years ago
14

Mark is six years older than his brother Sam. The sum of their ages is 30. Let 'a' be Sam's age.

Mathematics
1 answer:
svlad2 [7]3 years ago
8 0

Answer:

a = 12 years

Step-by-step explanation:

Mark is 6 years older than his brother Sam. Now, we are asked to represent Sam’s age by a. This means that if Sam is a years old, Mark is (a + 6) years old.

The sum of their ages is 30, this means that when we add their ages together, we get the sum of thirty.

Mathematically this means a + a + 6 = 30

2a + 6 = 30

This is the equation needed to get a. To get a , we proceed to solve the equation to completion.

2a = 30 - 6

2a = 24

a = 24/2

a = 12

You might be interested in
A small garden has an area of 25 square yards. How long is each side of the garden? *
Marrrta [24]

Answer:

5

Step-by-step explanation:

4 0
2 years ago
At 8:00 a.m. the temperature outside in Juneau, Alaska was -16.5 . By noon the temperature had increased by 15.25 . What is the
adelina 88 [10]

It would be -1.25 degrees at noon.

3 0
3 years ago
If the cost of a graphing calculator is now three-fourths of what the calculator cost 5 years ago and the cost of the graphing c
Andru [333]

Answer:

58 1/2

Step-by-step explanation:

multiply by 3/4

3 0
2 years ago
PLEASE HELP, TY IF YOU ANSER:)<3
Taya2010 [7]
X. . X. X. X. X. X x x x x. X x x x. X x. X x x
6 0
3 years ago
Find cos 0.<br> 53<br> 45<br> 28
Lemur [1.5K]
The answer is A. 28/53
4 0
3 years ago
Other questions:
  • Point A is the incenter of ΔDEF. What is the length of NA?
    14·2 answers
  • The life span of a battery is the amount of time the battery will last. The distribution of life span for a certain type of batt
    11·1 answer
  • Please answer question
    12·2 answers
  • What relationship between the circumference and the diameter is suggested by your observation?
    6·1 answer
  • A scale on a hiking map shows that 1.5 inches represents 4 miles
    8·2 answers
  • 6) Match the sequence given to the correct formula. 4, 16,64, 256..."
    13·1 answer
  • What are the coordinates of the roots of the equation X squared plus 4X +3 equals zero
    7·2 answers
  • What is the solution for -10 -19<br><br>A.)x &gt; -19<br>B.)x -1
    12·2 answers
  • HELP HELP HELP FIRST RIGHT ANSWER GETS BRAINLIEST​
    13·1 answer
  • A commercial jet air plane climbs at takeoff with slope m = 3/8. How far in the horizontal direction will the airplane fly to re
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!