Let us assume that the weight of carrots is "X" kilogram
Since the total weight is 9 kilograms, the weight of potatoes should be "9-X" kilograms.
The cost of "X" kilograms of carrot at $0.75/kilogram is calculated as = 0.75*X = 0.75X
The cost of "9-X" kilograms of potatoes at $0.70/kilogram is calculated as 0.70*(9-X)
We know that the total cost is $6.60
We now frame the equation as:
0.75X + (9-X)*0.70 = 6.60
0.75X + 6.30 -0.70X = 6.60
0.05X = 0.30
X = 0.30/0.05 = 30/5 = 6
Therefore weight of carrots = 6 Kilograms and
Weight of potatoes = 9-6 = 3 Kilograms
Answer:
the correct answer is 120
It's saying <em>d </em><em> </em>÷ <em>h </em><em> </em>= <em>x.</em>
<em>d </em> is the money
<em>h</em> is the hours
<em>x</em> is the unknown answer
Answer:
15 3/4t^2 + 5 1/4
Explanation:
h(t)=-16t^2+400
We can add 400 then - 64 and show as 8^2
= h(t)=-16t^2+400 - 8^2
But we also need to change 16t^2;
We divide 64 into 16 = 16/64 =0.25
and show 16t^2 changes by 0.25 = 1/4
15 3/4t^2 + 400-64
Can now look like
15 3/4t^2 + 5 1/4
As 5 1/4 = 64 x 5 1/4 = 336
