N + d = 20....n = 20 - d
0.05n + 0.10d = 1.35
0.05(20 - d) + 0.10n = 1.35
1 - 0.05d + 0.10d = 1.35
-0.05d + 0.10d = 1.35 - 1
0.05d = 0.35
d = 0.35/0.05
d = 7 <==== 7 dimes
n + d = 20
n + 7 = 20
n = 20 - 7
n = 13 <=== 13 nickels
Answer:
Step-by-step explanation:
202 students taking math and are business majors
only math, would be (861 - 202) = 659
only business majors, would be (525 - 202) = 323
so there are (659 + 323) = 982 that are math or business majors
Answer:
De value of k is 9
Step-by-step explanation:
6,-1
b(1,3)
(k,8)
am using bodmas
a6-1×1=6a
b1×3=3b
abc=8
6a+3b+8=17-8
=9
Here the line passes through (0,0) and (1,3).
First we need to find the slope , and for that we need to use the following formula
![m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}](https://tex.z-dn.net/?f=%20m%3D%5Cfrac%7By_%7B2%7D-y_%7B1%7D%7D%7Bx_%7B2%7D-x_%7B1%7D%7D%20%20)
On substituting the values from the point, we will get
![m=\frac{3-0}{1-0}=3](https://tex.z-dn.net/?f=%20m%3D%5Cfrac%7B3-0%7D%7B1-0%7D%3D3%20%20)
Now we will use slope intercept form, which is
![y = mx+ b](https://tex.z-dn.net/?f=%20y%20%3D%20mx%2B%20b%20)
Where m is the slope and b is the y intercept
And on substituting the values of x and y from the point (1,3) and slope, m = 3, we will get
![3 = 3(1)+b](https://tex.z-dn.net/?f=%203%20%3D%203%281%29%2Bb%20)
![3=3+b](https://tex.z-dn.net/?f=%203%3D3%2Bb%20)
b =0
Substituting the values of m and b in the slope intercept form, we will get
![y= 3x](https://tex.z-dn.net/?f=%20y%3D%203x%20)
Answer:
the ans is C..... good luck