Answer:
Step-by-step explanation:
Slope-intercept form: where is the slope and is the y-intercept (the value of y when the line crosses the y-axis)
<u>1) Plug the given slope 5 into the equation</u>
<u>2) Find the y-intercept </u><u> by plugging in the point (-1,-2)</u>
Add 5 to both sides
<u>3) Plug the y-intercept back into the equation</u>
I hope this helps!
Answer:
15 nickels and 8 dimes
Step-by-step explanation:
Create a system of equations where d is the number of dimes and n is the number of nickels:
0.1d + 0.05n = 1.55
n = d + 7
Solve with substitution by plugging in d + 7 as n:
0.1d + 0.05(d + 7) = 1.55
0.1d + 0.05d + 0.35= 1.55
0.15d + 0.35 = 1.55
0.15d= 1.2
d = 8
Plug in 8 as d to find n:
n = d + 7
n = 8 + 7
n = 15
So, there are 15 nickels and 8 dimes
Well as you can see it is F!
Answer:
19.71 m
Step-by-step explanation:
we have to set up a equation
If you draw a picture to set up the similar parts, it will help you to make a proportion for the equation easier.
using right angle triangle theory
bases = represent the shadows
heights = heights of the tree and the statue
height of tree/height of statue = shadow length of tree /shadow length of statue
Height of tree= shadow length of tree x height of statue /shadow length of statue
Height of tree= 26 x 47/ 71 = 19.71 m
Answer:
89.84375
Step-by-step explanation:
Given that on a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 finance majors averaged 93.
To find weighted mean.
Here weights can be considered as number of majors in each subject
Weighted total = 1350+595+930 = 2875
Weighted mean = weighted total/total students