Answer:
it's 0.01 (approx.)
Step-by-step explanation:
brainliest plz
Basically looking for the x value of intersection of the two equations. Setting them equal,
2^x + 12 = 15x + 35, which you will get x = 7. Graph it out to get a visual solution.
The number of birds after 7 years would be 140, for both species.
Simplifying
1.2x + 3.7 = 2.2x + -4.5
Reorder the terms:
3.7 + 1.2x = 2.2x + -4.5
Reorder the terms:
3.7 + 1.2x = -4.5 + 2.2x
Solving
3.7 + 1.2x = -4.5 + 2.2x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2.2x' to each side of the equation.
3.7 + 1.2x + -2.2x = -4.5 + 2.2x + -2.2x
Combine like terms: 1.2x + -2.2x = -1x
3.7 + -1x = -4.5 + 2.2x + -2.2x
Combine like terms: 2.2x + -2.2x = 0.0
3.7 + -1x = -4.5 + 0.0
3.7 + -1x = -4.5
Add '-3.7' to each side of the equation.
3.7 + -3.7 + -1x = -4.5 + -3.7
Combine like terms: 3.7 + -3.7 = 0.0
0.0 + -1x = -4.5 + -3.7
-1x = -4.5 + -3.7
Combine like terms: -4.5 + -3.7 = -8.2
-1x = -8.2
Divide each side by '-1'.
x = 8.2
Simplifying
x = 8.2
Answer:
52
Step-by-step explanation:
Total Number of students :
Stage 3 : 380
Stage 4 : 240
Stage 5 : 110
Total = (380 + 240 + 110) = 730
Number of samples required = 100
Number of key stage 3 students required :
(Key stage 3 / total) * number of samples
(380 / 730) * 100
= 0.5205479 * 100
= 52.0547
= 52
Answer:
9 children and 0 adults, 6 children and 2 adults, 3 children and 4 adults, or 6 adults and 0 children went to the park
Step-by-step explanation: