I solved this via trial & error, not much to say, other than all other combinations of seven coins did not total to $0.61, so here you go.
1 quarter ($0.25)
2 dimes ($0.20)
3 nickels ($0.15)
1 penny ($0.01)
________________
7 coins ($0.61)
Okay -
So, the goal when we have an equation is to find the value of the variable. So, let's isolate that variable on <em>one </em>side of the equation!
<em>* original equation </em>
<em>5x + 4 = 49.
</em><em>* subtract four from both sides. if you do something on one side of the equation, you have to do it on the other.
</em><em>5x + 4 - 4 = 49 - 4.
* now we are going to divide 5 on both sides to isolate x.
5x/5 = 45/5.
* and our answer is...
x = 9. =)
</em>
Answer:
The values are calculated with the help of table.
Step-by-step explanation:
We are given the following information in the question:
A table is shown showing trees on two different plots of land which are tested for disease.
Tree: 1 2 3 4 5 6 7
Plot: A A B B B A B
Disease: Y N Y Y Y N N
We have to find:
Calculating from the table, we can fill the values as:
Plot A Plot B
Disease Present 1 3
Disease not Present 2 1
Step-by-step explanation:
I used my calculator, so they should be correct.
