QUESTION 1
Let the numbers be x and y.
It was given that the numbers are in the ratio 5:2.
This implies that,
The sum of the numbers is
The difference is
The ratio if the sum to the difference is
QUESTION 2
Let the numbers be m and n.
This implies that,
Also,
We rewrite this as a fraction to get,
We make m the subject to get,
We put equation (2) into equation (1) to get,
The numbers are 42 and 49.
Answer:
17
Step-by-step explanation:
m<1 = (4x + 2)
m<3 = (5x - 15)
To find the value of x, we need to generate an equation.
<1 and <3 are vertical angles. Vertical angles are congruent. Therefore:
m<1 = m<3
(4x + 2) = (5x - 15)
Use this equation to solve for x
4x + 2 = 5x - 15
Subtract 5x from both sides
4x + 2 - 5x = 5x - 15 - 5x
-x + 2 = -15
Subtract 2 from both sides
-x + 2 - 2 = -15 - 2
-x = -17
Divide both sides by -1
x = 17
Answer:
8.4 , 7.7
Step-by-step explanation:
- 0.7
Hi There!
Solve d = rt for t.
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Solution:
rt = d (Flip Equation)
rt/r = d/r (Divide both sides by r)
t = d/r
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Answer: C) t = d/r
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Hope This Helps :)
Answer:
Cost of pencil = $20
Cost of copy = $6
Step-by-step explanation:
Statement.
Gill buys 14 copy and 12 pencils and pays a total $324, if the value of 1 copy and 1 pencil is $26, find cost of copy and pencil.
Computation:
Assume.
Cost of copy = x
Cost of pencil = y
So,
x + y = 26.......Eq1
And
14x + 12y = 324.........Eq2
From Eq1 ad Eq2
Cost of pencil = $20
So,
Cost of copy = $6