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Katyanochek1 [597]
3 years ago
7

X-13+4x=22 A. 1.8 B. 5 C. 7 D. 11.7 Help

Mathematics
1 answer:
melisa1 [442]3 years ago
6 0

Answer:

C. 7

Step-by-step explanation:

7 - 13 + 4[7] = 22

−6 + 28 = 22 ☑

7 = xis an authentic solution.

I am joyous to assist you anytime.

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Width of a rectangle with the length of x+6 and area x^3+2x^3-5x-66
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Hello : 
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(WILL GIVE BRINALIST TO BEST ANWER) WHATS the measure of &lt; 3
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Answer:

∠3 = 60°

Step-by-step explanation:

Since g and h are parallel lines then

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8 0
3 years ago
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

The beans cost $1.60 per pound. Since "b" represents the number of pounds of beans Lin buys, the total cost of beans she buys can be represented as:

1.6b

Knowing that she spends $10, you can write the following equation:

2r+1.6b=10

2. In order to rearrange the equation so "b" is the independent variable, you need to solve for "r":

2r+1.6b=10\\\\2r=10-1.6b\\\\r=\frac{10-1.6b}{2} \\\\r=5-0.8b

3. To rearrange the equation so "r" is the independent variable, you must solve for "b". You get:

2r+1.6b=10\\\\1.6b=10-2r\\\\b=\frac{10-2r}{1.6}\\\\b=6.25-1.25r

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