Answer:
b = 13
Step-by-step explanation:
the value of the discount is a constant, while the total cost of the books is a variable because it depends of the purchase
We can write this equation
5b - 7 = 58
Solve it
1) add 7 at both members
5b -7 + 7 = 58 + 7
5b = 65
2) divide both membera by 5
b = 13
Answer:
Step-by-step explanation:
hello :
D. There are infinitely many solutions because :
x+y=4 multiply by : 2
equation equivalent to 2x+2y =8
same line
Gbfdvrbh did f d gn DVD’s. G scdng. Fndcevg gvexfngbb fav even is gonna is the day you get caught in your mind when you get home and you get
Answer:
You can write this ratio in three different ways:
1. 3/7
2. 3 to 7
3. 3:7
Answer:
The null and alternative hypothesis for this problem are:

Step-by-step explanation:
The alternative hypothesis shows the claim of the researchers. In this case, that the new type of fertilizer significantly increase the actual yield with the old fertilizer:

The null hypothesis is the hypothesis to be <em>nullified</em>, so it states that the claim is not true and the yield is the same (or, at least, not significantly higher) as with the old fertilizer:
