Answer:
Step-by-step explanation:
14(3+1) - (3 - 7)
"double" - times by 2
"and" - addition
when using " first second and third" you just have to assign the numbers by the way it comes in the problem...
first number - 7
second number - 3
third number - 1
Answer:
m= -1/2, (0,5), (10,0)
Step-by-step explanation:
Let us write it in slope intercept form, y=mx +b where m is the slope:
2x+4y=20
4y= -2x+20
y= -1/2x+5
Therefore, the slope is -1/2
The y intercept can be found when we substitue 0 as x.
y= -1/2*0 +5
y=0+5
y=5
(0,5)
The x intercept can be found when we substitute 0 as y.
0=-1/2x+5
-5 =-1/2x
x= 10
(10, 0)
<em>I hope this helped! :)</em>
⇒The answer to the first question would be $69.75.
⇒The answer to the 2nd question would be $36.48.
⇒The answer to the 3rd question would be $42.7.
Here's how to get them:
For question 1: A 55% markup for $45 ⇒1.55*45⇒69.75
For question 2: A 60% markup for $22.8⇒ 1.6*22.8⇒36.48
For question 3: A 40% markup for $30.50⇒1.4*30.50⇒42.7
Small Explanation: The reason why there should be a 1 in front of the decimal (which is the percent, but in decimal form) is because by not adding that number 1 in front of the decimal, you will have to do an extra step.
Anyway, hope this helped! :-)
Answer:
D.
Step-by-step explanation:
First, you have to solve all of the options. The only option that makes since is D. To solve D, add 4 to both sides. That will leave you with y=3x+10. The slope of that equation is 3 and the y-intercept is 10. The line crosses the y-axis at 10, and goes up three and to the right one.
