Answer:
x = 20
Step-by-step explanation:
7x° + (x + 20)° = 180° (linear pair)
Solve for x
7x + x + 20 = 180
Add like terms
8x + 20 = 180
8x + 20 - 20 = 180 - 20
8x = 160
8x/8 = 160/8
x = 20
Answer:
(3, 140)
Step-by-step explanation:
If we have the equation 
, we can substitute the value 3 as 
to find the value of 
.
So we know that the total cost is $140.
To represent this as an ordered pair, we need to take note that the independent variable (x) is the one that we change to get the result (y).
We changed to get , so is the x and is the y.
So it's represented as (3, 140).
Hope this helped!
The answer is 12 units of the line sr
Answer:
She can make 13 flags
Step-by-step explanation:
40 5/6 divided by 3 1/8
245/6 divided by 25/8
245/6 x 8/25
Use cancellation for a more simplified result
49/6 x 8/5
49/3 x 4/5 = 196/15 = 13 1/15
She can make 13 flags
Answer:
<h3>y = 56x</h3>
Step-by-step explanation:
Given the amount to keep one adult in a day to be x
Since 7 days = 1 week
Amount it will take to keep one adult for a week will be 7x
one adult = 7x pounds
To get the expression that show how much it costs per week to keep the 8 adults, we will say;
8 adults = y pounds
where y is the required amount
Solving both expressions
one adult = 7x pounds
8 adults = y pounds
Cross multiply
1 * y = 7x * 8
y = 56x
Hence the required expression is y = 56x
