The original area is
4*6= 24
The new area is 24*2 =48
So the dimensions is 6*8
4x + 14 = k
Do the opposite of PEMDAS
Isolate the x, subtract 14 from both sides
4x + 14 (-14) = k (-14)
4x = k - 14
divide 4 from both sides
4x/4 = (k-14)/4
x = (k-14)/4 is your answer
hope this helps
Numbers 1 and 2 are correct.
Question 3:
We can see in each figure, the number of rows matches the figure amount. For example, figure 1 has 1 row, figure 2 has 2 rows, figure 3 has 3 rows, etc. Another thing we can see is that one block gets added to each column in every figure. If we count starting from 3 and keep adding 1 for each column, we get 22 blocks for one column. In figure 20, there will be 20 rows and 22 columns. We also have to keep in mind that they add 2 extra blocks at the top and bottom that stick out like the ones shown. In total, figure 20 will consist of 442 blocks.
Question 4:
[(2 + f) * (f)] + 2 = b
(2 + f) represents the number of blocks in each column.
(f) represents the number of blocks in each row.
2 represents the two extra blocks in each figure.
Note that f in this equation equals the number of the figure. For example, figure 3 is f = 3
We can test our equation with figure three.
[(2 + f) * (f)] + 2 = b
We have figure three so f = 3. Substitute and solve.
[(2 + 3) * (3)] + 2 = b
[5 * 3] + 2 = b
15 + 2 = b
17 = b
In the example, the number of blocks is 17. Therefore, this equation works for any figure.
Best of Luck!
Answer:
He should pay 30 quarters
Step-by-step explanation:
To find the number of quarter dollars he should pay, first calculate out the amount of money this would cost. For this, we can multiply the cost of the item by the number of them that we got and then add them all together.
Burgers
2 * 1.75 = 3.50
Cake
2 * 1.50 = 3.00
Soda
1 * 1.00 = 1.00
Total
3.50 + 3.00 + 1.00 = 7.50
Now to find out how many quarters he should pay, we divide the amount by .25.
7.50/.25 = 30
When you add something, you gain more of it. Therefore, it should be positive 2
2