Answer:
Just put it in the format and you will eventually find it.
Step-by-step explanation:
Hope this helps.
<span>q + d=19
0.25q + 0.1d=4
</span><span> (d)
-0.1(q + d=19)
0.25q + 0.1d=4
Opposites cancel
-0.1q -0.1 d=1.9
0.25q + 0.1d=4</span>
Answer:
The first one
Step-by-step explanation:
95\19 : 5
75\5 : 15
Answer:
5mph over the speed limit
Step-by-step explanation:
In 1 hour the man drove 210/3.5=60 miles. 60mph is over the speed limit (55) by 5 mph.
Answer:
(-1,2) y=2 x=-1
Step-by-step explanation:
This is a system of equations and in this you see there is 3x and negative three x. To solve this you need tp get rid of one of the variables. so we can add the two equations together to get 3y=6. This means that y=2 if we divide by 3 on both sides. Then we just plug 3 in for y and we get 3x+10=7. We subtract 10 on both sides to get 2x=-3 which means x=-1.
