Answer:
Number of children = 386
Number of adults = 287
Step-by-step explanation:
Let
x = number of children
y = number of adults
x + y = 673 (1)
1.75x + 2y = 1249.50 (2)
From (1)
x = 673 - y
Substitute x = 673 - y into (2)
1.75x + 2y = 1249.50
1.75(673 - y) + 2y = 1249.50
1177.75 - 1.75y + 2y = 1249.50
- 1.75y + 2y = 1249.50 - 1177.75
0.25y = 71.75
y = 71.75/0.25
y = 287
Substitute y = 287 into (1)
x + y = 673
x + 287 = 673
x = 673 - 287
x = 386
Number of children = 386
Number of adults = 287
1 mi = 5280 ft
1 h = 3600 s
therefore:

Answer: 31.8 mi/h = 46.64 ft/s
Answer:
(1.5,2)
Step-by-step explanation:Its the only one furthest away from the rest
5(4+y) is the correct answer, you would be adding 4 and y then multiplying the sum by 5
Answer:
The multiple zero is
.
The multiplicity is 2
Step-by-step explanation:
The given function is

To find the zero of this function, we equate it to zero.

We factor to obtain;

Observe that; the expression within the parenthesis is a perfect square.
This implies that;

This implies that;
Either
or 
has a multiple zero which is
and its multplicity is 2.