.5 is the common difference between the numbers
Answer:
x = 2.25 y = 0.75
Step-by-step explanation:
2x = 9.5- 5
2x = 4.5
x = 4.5 ÷ 2
x = 2.25
know we now what is x so in the second one we evaluate x
3(2.25) + 5y = 10.5
6.75 + 5y = 10.5
5y = 10.5- 6.75
5y = 3.75
y = 3.75 ÷ 5
y = 0.75
that's it !
if you want to check your answer you can evaluate x and y so it will be like
2×2.25 + 5
= 4.5 + 5 = 9.5
and
3× 2.25 +5×0.75
= 6.75 + 3.75 = 10.5
The edge length of a cube was to double, then the scale factor would be 1:2 (1 representing the original cube, and 2 representing the doubled cube). The ratio between the volumes is the scale factor cubed. Therefore the ratio of the volumes would be 1 cubed:2 cubed which simplifies to 1:8.
Final Answer: the volume of the cube with doubled edge lengths would be 8 times as large as the volume of the original cube.
Uhh well you can find the percentage of change by taking the new part and dividing it by the old one, so it'll be bigger divided by smaller
And if you notice, the reciprocal (the answer) is greater than one
that's because the 1 is 100% and the decimal is how much it grew by
If it's less than 1 then it's decreasing
Answer:
A=342 ft^2 (dark section)
A = 108 ft^2 (light section)
Step-by-step explanation:
18 x 25 = 450
9 x 12 = 108
450-108= 342