Sarah is twice as old as her youngest brother if the difference between their ages is 15 years how old is her youngest brother
Answers
b=brother age
s= 2 times b
s=2b
if difference beteeen ages is 15
sarah is older so
s-b=15
we now have
s=2b
s-b=15
since s=2b
sub 2b for s in othe equaiton
2b-b=15
b=15
wow, that's easy
brother is 15 years old
x = 15 yr, age of the youngest brother
Related Questions
What is the equation of the linear function represented by the table? x y –5 14 –2 11 1 8 4 5 y = negative x + 9 y = negative x + 13 y = x + 13 y = x + 9
It says “find x (round to the nearest hundredth)”I’m so lost and this is geometry
750 is divisible by which of these numbers?a. 2 3 4 5 and 9b.2 3 4 5 6 and 10c. 2 3 4 6 and 9d. 2 3 4 5 6 9 and 10
The larger of two numbers is 7 more than 5 times the other. Their sum is 55. Find the two numbers.
Answers
Answer:
1st, 2nd and 6th options
Step-by-step explanation:
Given
- x +
= 6x ( multiply through by 6 to clear the fractions )
4 - 6x + 1 = 36x ← option 1 will have the same solution set
----------------------------------------------------------------------
Adding the 2 fractions on the left side gives
+
- x = 6x , that is
- x = 6x ← option 2 will have the same solution set
------------------------------------------------------------------------
From
4 - 6x + 1 = 36x ( add 6x to both sides )
5 = 42x ← option 6 will have the same solution set
Answers
Answer:
B a negative assoviation because the scatter plot leads downwards
b. 8 qt
c. 6 qt
d. 14 qt
Answers
Your final answer will be B) 8 qts
Answer:
8 qt
Step-by-step explanation:
Multiply 3x(x) and 4x6 equating to 3x=24 and then algebra to solve for x, by dividing both sides by three.
Answers
8(7x-1)+4(x+5)
multiply; 8 x 7=
56x + -1 + 4x +5
reorder the terms;
-1 + 5 + 56x + 4x
Combine like terms; -1 + 5 = 4
4 + 56x + 4x
Combine like terms again; 56x + 4x = 60x
4 + 60x
Answers
It's length times width times height.
162x4x6
The answer is 3888 cubic feet of concrete.
(One thing I'm not sure is 162 is the length, correct?)
Answers
Answer:
x>-1
Step-by-step explanation:
solve this normally like a linear equation
3x + 1 >x-1
collect like terms
3x-x>-1-1
2x>-2
x>-2/2
x>-1