Answer:
a = -10
Step-by-step explanation:
-0.4a + 3 = 7
subtract 3 from each side
-0.4a + 3-3 = 7-3
-.4a = 4
Divide each side by -.4
-.4a/ -.4 = 4/-.4
a = - 10
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
When you want to find out what the slope is, you have to remember what the formula is first....

so in this case -3 would be the
because it's the y in the ordered pair and it's the second one. Then one of the 5's would be
and 9 would be
and then the other 5 would be
.
now if we plug it in

now we can tell that we can't divide by zero so the slope would be unidentified and that's it.
Answer:

Step-by-step explanation:
Answer:
t=5
Step-by-step explanation:
34+9.70t=82.50
-34 -34.00
9.70t=48.50
divide 9.70 from both sides
t=5
Answer:
4.50
Step-by-step explanation:
thats really easy bro just divide $13.50 by 3 and you get your answer