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Readme [11.4K]
3 years ago
10

Boyd grows only tomatoes and raspberries in his garden. Last year, he grew 140 pounds of tomatoes and 60 pounds of raspberries.

This year, the production, by weight, of tomatoes declined by 20 percent, and the production, be weight, of raspberries declined by 50 percent. By what percentage did the total yield, by weight, of Boyd's garden decline
Mathematics
1 answer:
nadya68 [22]3 years ago
5 0

Answer:

29%.

Step-by-step explanation:

We have been given that Boyd grew 140 pounds of tomatoes and 60 pounds of raspberries. This year, the production, by weight, of tomatoes declined by 20 percent, and the production, be weight, of raspberries declined by 50 percent.

First of all, we will find the weight of tomatoes and raspberries using the given information.

Since the production, by weight, of tomatoes declined by 20 percent, so this year production of tomatoes is 80% of 140 pounds.

\frac{80}{100}\times 140=0.80\times 140=112

Since the production, be weight, of raspberries declined by 50 percent, so this year production of raspberries is 50% of 30 pounds.

\frac{50}{100}\times 60=0.50\times 60=30

Total production this year: 112+30=142 pounds.

Now, we will percent decrease formula.

\text{Percent decrease}=\frac{\text{Initial value-Final value}}{\text{Initial value}}\times 100

\text{Percent decrease}=\frac{(140+60)-142}{140+60}\times 100

\text{Percent decrease}=\frac{(200)-142}{200}\times 100

\text{Percent decrease}=\frac{58}{200}\times 100

\text{Percent decrease}=0.29\times 100

\text{Percent decrease}=29

Therefore, the total yield, by weight, of Boyd's garden declined by 29%.

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So,

Let's calm down and translate this word problem.

The 8-ct. pack costs 0.03 cents more per bun than the 10-ct. pack.

x = cost of 8-ct. pack

y = cost of 10-ct. pack

We now have the equation:

\frac{x}{8}=\frac{y}{10}+0.03\ cents

Also, we are told that the 8-ct. pack is 0.45 cents less than the 10-ct. pack.

x = y - 0.45 cents

With these two equations, we can now solve for x and y.

First, substitute y - 0.45 cents for x in the first equation.

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Subtract 8y from both sides and add 4.50 cents to both sides.

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Substitute 3.45 cents for y in the second equation.

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The 8-ct. pack costs 3.00 cents, and the 10-ct. pack costs 3.45 cents.

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