Answer:
a = 0
Step-by-step explanation:
3a * 1 = 2a
3a = 2a
3a - 2a = 2a - 2a
a = 0
Answer:
I assume you are looking for the length and width of the rectangle?
W = 6 meters L = 14 meters
Step-by-step explanation:
P= 2(l + w)
We are given that the length is 2 meters more than double the width.
Let width = x
Let length = 2x + 2
Calculate P based on these.
2 [2x + 2 + x]
2 [3x + 2]
6x + 4 = P
Substitue 40 for P
6x + 4 = 40
6x = 36
x = 6
Substitute 6 in for x in the length and width formulas.
W = 6
L = 14
Check
6 + 14 = 20
And 20 times 2 = 40 meters.
Answer:
Independent Events
Step-by-step explanation:
Given
Required
Dependent or independent event
The probability of selecting a green jelly remains unchanged before and after selecting the first orange jelly.
<u>Before selecting the orange jelly:</u>
<u>After selecting the orange jelly:</u>
Because the probabilities remain unchanged, the selection of a green jelly is independent of the selection of the first orange jelly.
Answer:
10%
Step-by-step explanation:
first let's write out the problem
0.99 is what percent of 9.90 = 0.99=9.90*x
We need to what c is so we would do the opposite operation of multiplication, division so we get,
0.99/9.90= .1
now we turn .1 into percent and get out answer
0.1= 10%
Answer:
j = $15
t = $5
Step-by-step explanation:
This question can be solved using simultaneous equation
let the price of t-shirt be represented with t
let the price of jeans be represented with j
From the question, these two equations can be derived
2j + 6t = 60 eqn 1
4j + 3t = 75 eqn 2
multiply eqn 1 by 2
4j + 12t = 120 eqn 3
Subtract eqn 2 from 3
9t = 45
divide both sides by 5
t = 5
Substitute for t in eqn 1
2j + 6(5) = 60
2j = 30
j = 15