Let x = baby dinosaurs
y = adult dinosaurs
equation 1
total paintings = 15 painting x + 7 paintings y
equation 2
baby dinosaurs = 3 times adult
x= 3y
substitute x= 3y to equation 1
y = 4
x = 12
There are 12 baby dinosaurs and 4 adult dinosaurs in a herd with 208 total paintings
Answer:
y=-1/2x-7
Step-by-step explanation:
<span> −3|x + 7| = −12
* </span><span> −3(x + 7) = −12
-3x - 21 = -12
-3x = -12 + 21
-3x = 9
x = 9/-3
x = -3
</span>
* −3*[ -(x + 7)] = −12
3x + 21 = -12
3x = -12 -21
3x = -33
x=-33/3
x = -11
answer:
x = -11 and x = -3
84 is divided into 7 84/7 =12
and it is added to
9 divided into 3 9/3 =3
12+3=15