Answer:
c is 35
d is 13
Step-by-step explanation:
I multiplied both sides, and then simplified the equation.
( plz give me brainliest, that would be most appreciated! )
Answer: OPTION A.
Step-by-step explanation:
Find the length scale factor by dividing the known length of the larger triangle by the known length of the smaller triangle:

Then, the area scale factor is:

To find the area of the the larger triangle, multiply the area of the smaller triangle by the area scale factor. Then:

So, the option that shows an approximation of the area of the larger triangle is the option A:
≈
Answer:
C, D and E
Step-by-step explanation:
Given
Represent solid beads with S and clear beads with C
So:

Required
Select operations that give an equivalent ratio
First, we need to get the unit ratio

Divide through by 4
-- This means that, after any operation. The equivalent ratio must be 2: 5
Option A: Add 2 to S and 2 to C

Perform the operation


Divide through by 2

Option B: Subtract 8 from S and 6 from C

Perform the operation


Option C: Multiply S and C by 2

Perform the operation


Divide through by 8

Option D: Divide S and C by 4

Perform the operation


Option E: Multiply S and C by 18

Perform the operation


Divide through by 72


<em>From the calculations above, options C, D and E gave an equivalent of 2:5.</em>
Please don't post masses of questions all at once. 1-2 problems per post would be more realistic and fairer to others who need help.
Regarding <span>x-2/5 = 1/5
We are to solve for x. To do this, let's remove the fractions by mult. all 3 terms by 5. Then 5x - 2 = 1, or 5x = 3.
Dividing both sides by x, we get x = 3/5 (answer). Check this by subst. 3/5 into the original equation.</span>
(10 cm)(12 cm)(6 cm) = 720 cm^3