All sides of a square are the same, add all the sides up for a perimeter of 12 (3 + 3 + 3 + 3=12). a rectangle that’s 5cm long will have another side that is also 5cm long, so add those and you’ll get 10. to achieve the same perimeter, you’d need to add 2, which means the other two sides are 1cm (10 + 1 + 1 = 12). you multiply the length and the width of both shapes to get their areas.
square: 3 x 3 = 9
rectangle: 5 x 1 = 5
then, subtract the areas from each other.
9 - 5 = 4
the difference in their areas is 4.
Answer:10a-35
Step-by-step explanation:
Option A
The system of equations are x + y = 40 and 10x + 7y = 360
<em><u>Solution:</u></em>
Let pounds of expensive coffee beans be x
Let pounds of cheaper coffee bean be y
Cost of 1 pound of expensive coffee bean = $ 10
Cost of 1 pound of cheaper coffee bean = $ 7
<em><u>The shop also sells a 40 pound mixture of the two kinds of coffee beans</u></em>
pounds of expensive coffee beans + pounds of cheaper coffee bean = 40
x + y = 40 ------ eqn 1
<em><u>The shop also sells a 40 pound mixture of the two kinds of coffee beans for $9 per pound</u></em>
pounds of expensive coffee beans x Cost of 1 pound of expensive coffee bean + pounds of cheaper coffee bean x Cost of 1 pound of cheaper coffee bean = 40 pound mixture x $ 9
10x + 7y = 360 --------- eqn 2
Thus the system of equations are x + y = 40 and 10x + 7y = 360
Thus option A is correct
Do 5 times 2 and 3/5 so the answer would be 10 3/5
Answer:
The scale factor for the resultant rectangle is units.
Step-by-step explanation:
Given two rectangles with sides 3 units and 7.5 units.
We have to find the scaling factors so that we can obtain bigger rectangle of 7.5 units from smaller rectangle of 3 units.
Scale factor is defined as the ratio of corresponding side of given figure to the corresponding side of resulting figure.
That is
Here,
Hence, the scale factor for the resultant rectangle is units.