If the recommended daily allowance for vitamin c is 60 mg per day and there are 70 mg of vitamin c per 100 g orange, how many 3.0 oz oranges would you have to eat each week to meet this requirement

7

Step-by-step explanation:

Given : The recommended daily allowance for vitamin c is 60 mg per day .

Then, for one whole week , the recommended allowance for vitamin c will be :-

Also, there are 70 mg of vitamin C per 100 g orange.

1 g = 1000 ml

The proportion of Vitamin C in 100 g =

1 oz =28.3495 grams

Then,

Then, amount of vitamin C in 85048.5 mg =

Then, the number of oranges have to eat each week to meet this requirement=

Hence,  about 7 oranges you would have to eat each week to meet this requirement.

the 4th choice is the correct one

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west