Wesley will need 10 10-inch stones, and 9 5-inch stones.
Since he wants to begin and end the pattern with 10-inch stones, we put a 10 at the beginning and end.
10 5 10 5 10 5 10 5 10 5 10 5 10 5 10 5 10 5 10
10 x 10-inch = 100 inches
9 x 5-inch = 45 inches
100 + 45 = 145 inches
Answer: Total cost is $1.75
Explanation:
Since we have given that
Number of postcards bought by Doug's family= 7
Cost of each postcard including tax = $0.25
Total cost is given by

Now, we want to show this in number line :
On the number line put all the number with a difference of 0.25 and run the number line seven times and we get the answer.
Each step is of length 0.25 and there are 7 jumps to reach required answer.
So, after 7 jumps we reach at 1.75 which is the required answer.
Hence total cost is $1.75
Answer:
27
Step-by-step explanation:
Answer:172.5
Step-by-step explanation:Xoxo
The perimeter of a shape is the sum of its side lengths.
<em>Joshua miscalculated the third length of the triangle</em>
First, we calculate the third length (x) of the triangle.
Because the triangle is right-angled, we can make use of Pythagoras.
So we have:


Take square roots of both sides


The other shape in the figure is a square.
So, the perimeter (P) is
---- i.e. the sum of the visible lengths
So, we have:

Evaluate like terms:

Hence, Joshua's error is that:
<em>He miscalculated the third length of the triangle</em>
Read more about perimeters at:
brainly.com/question/6465134