T=d/v
540/(230+w)=380/(230-w)
540(230-w)=380(230+w)
124200-540w=87400+380w
124200-920w=87400
-920w=-36800
w=40
So the wind speed is 40 miles per hour.
x+y=8 and 25x+10y=170 are the linear equations.
x+y≤8 and 25x+10y≤170 are the inequalities.
Step-by-step explanation:
Given,
Worth of coins = $1.70 = 1.70*100 = 170 cents
Number of coins = 8
1 quarter = 25 cents
1 dime = 10 cents
Let,
x represent the number of quarters
y represent the number of dimes
1. Write an equation to represent the amount of coins Karen has.
x+y = 8
2.Write an equation to represent the value of the coins Karen has.
25x+10y=170
x+y=8 and 25x+10y=170 are the linear equations.
For inequalities, the amount cannot increase number of coins and worth but it can be less, therefore,
x+y≤8
25x+10y≤170
x+y≤8 and 25x+10y≤170 are the inequalities.
Keywords: linear equations, addition
Learn more about linear equations at:
#LearnwithBrainly
Answer:
slope 8= -1/5
slope 9= -1
Step-by-step explanation:
<span>1. When you pay a bill in full, you are
a. paying it off
</span>2. APR stands for
c. annual percentage rate
3. when calculating interest accrued, you should
c. multiply the principal by the APR and number of months, then divide by the total number of the months in the year.
4. --- are used to take money directly from your account
b. Debit cards
5. A pack of gum would be considered a
b. small ticket item
6. Interest rates on mortgages are lower because the home is
b. secured
It's the last answer because all u have to do is plug in those points for both equations and I got the solution -1/4,-4
