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Mathematics

1 answer:

Yuki888 [10]2 years ago

5 0

Answer:

The answer to your question is ∠2 = 130°

Step-by-step explanation:

Data

m∠1 + m∠5 = 100

From the picture, we notice that ∠1 and ∠5 are corresponding angles so they measure the same.

∠1 + ∠1 = 100

2∠1 = 100

∠1 = 100/2

∠1 = 50°

From the picture, we know that ∠1 and ∠2 are supplementary, then,

∠1 + ∠2 = 180

-Solve for ∠2

∠2 = 180 - 50

-Result

∠2 = 130°

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Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $10 to spend on these items to make a large meal of beans

Valentin [98]

Answer:

1. $2r+1.6b=10$

2. $r=5-0.8b$

3. $b=6.25-1.25r$

Step-by-step explanation:

<h3> The complete exercise is: "Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $10 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number of pounds of beans Lin buys and r be the number of pounds of rice she buys when she spends all her money on this meal.</h3><h3>1. Write an equation relating the two variables.</h3><h3>2. Rearrange the equation so "b" is the independent variable.</h3><h3>3. Rearrange the equation so "r" is the independent variable."</h3><h3 />

1. According to the information exercise given in the exercise, the cost per pounds of brown rice is $2. Since "r" represents the number of pounds of rice Lin buys, the total cost of the brown rice she buys can be represented with this expression:

$2r$