Answer:
y = 98
Step-by-step explanation:
y=21x−7
Let x=5
y = 21*5 -7
y =105-7
y =98
First, find the ratio between the two polygons. Lets take segment MG and TV since they are congruent. MG is 4, TV is 3. The ratio of MG to TV is 4:3. We can write it as 4/3. Since other arts are congruent as well, then NK is congruent to PR, and has a ratio of 4:3. This means that (3x-2)/(x+4) is equal to 4/3. Now solve for x
(3x-2)/(x+4)=4/3
3(3x-2)=4(x+4) ---cross multiply
9x-6=4x+16
9x-4x-6=4x-4x+16 ---subtract 4x from both sides
5x-6=16
5x-6+6=16+6 ---add 6 on both sides
5x=22
5x/5=22/5 ---divide 5 on both sides
x=22/5
Answer:
36 ft³/min
Step-by-step explanation:
Given that:
Let assume that length of the cube = m
Then;
m = 2 feet &;

The volume (V) = m³
By differentiating with respect to t, we get



= 36 ft³/min
Step-by-step explanation:
Let the digit at tens place of a two digits number be X
The place value of X = 10×X = 10X
The units digit = 5 more than its tens digit
= X+5
The place value of units digit
= (X+5)×1
= X+5
Now
The two digits number
= 10X+X+5
⇛ 11X+5
Therefore ,The two digits number = 11X+5.