A blueprint for a house has a scale factor n = 10. A wall in the blueprint is 7 in. What is the length of the actual wall? 840 ft.
5.83 in.
70 ft.
5.83 ft.

5.83 ft

Step-by-step explanation:

Given that

Scale factor, n = 10

Wall in blueprint = 7 in

To find:

Length of actual wall = ?

Solution:

Whenever a blueprint is created for any house or building, it is made smaller by a scale factor.

Here this factor is 10 times.

That means, the blueprint size is 10 times smaller than that of its actual size.

Or we can say that actual wall of building is 10 times the wall of blueprint.

So, wall of building = 10 7 = 70 inches

Now, we know that 12 inches = 1 ft

1 inch =

70 inches =

so, the answer is Wall of building is 5.83 ft.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

a

step-by-step explanation: