Substitue what y equals for y and solve.
![-4x+7(3x+15)=20 \\-4x+27x+105=20 \\23x=-85 \\x=-\boxed{\frac{85}{23}}](https://tex.z-dn.net/?f=%3C%2Fp%3E%3Cp%3E-4x%2B7%283x%2B15%29%3D20%20%5C%5C%3C%2Fp%3E%3Cp%3E-4x%2B27x%2B105%3D20%20%5C%5C%3C%2Fp%3E%3Cp%3E23x%3D-85%20%5C%5C%3C%2Fp%3E%3Cp%3Ex%3D-%5Cboxed%7B%5Cfrac%7B85%7D%7B23%7D%7D%3C%2Fp%3E%3Cp%3E)
Hope this helps.
Answer:
259 students
Step-by-step explanation:
First, find how many will check out science fiction books
350(0.14)
= 49
Find how many will check out sports books
350(0.12)
= 42
Subtract these amounts from 350
350 - 49 - 42
= 259
So, she should expect 259 students not to check out science fiction and sports books
Answer:
$13,997.53
Step-by-step explanation:
The simplest, minimally acceptable answer would stem from multiplying by 5 the $247.43 monthly payment and subtracting the result from the amount initially owed:
$15,234.68
-$ 1,237.15
----------------
$13,997.53
Okay think of it this way you have 45 friends but 4 unfriend you u will have 41 friends left or put it this way 45-4=41
Answer:
1
Step-by-step explanation:
We can use the slope formula to find the slope
m = ( y2-y1)/(x2-x1)
= ( -15 - -14) / ( -11 - (-10))
= (-15+14) /(-11 + 10)
= -1 / -1
= 1