The answer is 0.6, 5 or higher add one more, 4 or less stays the same
let the goldfish be x and the guppies be y
4x + 3y = 29...equ(1)
3x + 5y = 30...equ(2)
multiplying equation 1 by 5 and equation 2 by 3
20x + 15y = 145...equ(1)
9x + 15y = 90...equ(2)
subtracting equation 2 from 1
11x = 55
∴x = 5
substituting the value of x into equation
4(5) + 3y = 29
20 + 3y = 29
3y = 9
∴y =3
Answer:
875 calories per hour
Step-by-step explanation:
To find out how much calories would be used per hour you have to divide 3500 calories by 4 hours to get 875 calories. Hope this helps :)
Answer: 10
Step-by-step explanation:
We know that
<span>A simple formula for the area of a rhombus when you know the lengths of the diagonals is half the product of the diagonals
</span>
Area=d1*d2/2
d1=500 yd
d2=800 yd
1 mile is equal to -----> 1760 yd
x mile---------------> 500 yd
x=500/1760----> x=0.2841 mi
1 mile is equal to -----> 1760 yd
x mile---------------> 800 yd
x=800/1760----> x=0.4545 mi
Area=(0.2641*0.4545)/2-----> 0.06 miles²
the answer is
0.06 miles²
