Answer:
I would’ve worked it out but it’s been years
Step-by-step explanation:
Answer:
3/20
Step-by-step explanation:
- Basically you find the how to write 0.15 in simplest form:)
Answer:
Look at the equations:
y
=
−
9
x
−
21
and
y
=
5
x
+
7
Because both equations equal (y), they both equal the same.
If an equations says "
y
=
−
9
x
−
21
" , that means we can replace (y) with
−
9
x
−
21
.
Therefore when i take the equation:
y
=
5
x
+
7
, we can replace (y) to get:
−
9
x
−
21
=
5
x
+
7
Now isolate (x):
−
9
x
−
21
=
5
x
+
7
⇔
−
21
=
14
x
+
7
⇔
−
28
=
14
x
⇔
x
=
−
2
In scientific notation, you want a number between 1 and 10; so the answer is <u>9.57 x 10</u> (to the understood first power).
Divide each side by 16
x = 3