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2 years ago

How can I used rational equations in 3 real life examples

2 answers:

7 0

1. You can solve a rational formula for a specified variable

2. Solve work problems

3. Define and solving equations that represents the concentration of a mixture.

otez555 [7]2 years ago

5 0

Just need to do an answer so i can ask a question soz

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Cameron buys 2.45 pounds of apples and 1.65 pounds of pears. Apples and pears each cost c dollars per pound. If the total cost a

nordsb [41]

Answer:

$4.12=2.45c+1.65c$

Step-by-step explanation:

We are given,

Cameron buys 2.45 pounds of apple and 1.65 pounds of pears.

Also, the cost of apples and pears is 'c' dollars per pound.

Thus, the cost of 2.45 pounds of apple is $2.45c$ dollars and the cost of 1.65 pounds of pear is $1.65c$ dollars.

Since, the total cost after using a coupon is $4.12.

So, we get the equation representing the situation is,

Total cost = Total cost of apples + Total cost of pears.

i.e. $4.12=2.45c+1.65c$

i.e. $4.12=4.1c$

i.e. $c=\frac{4.12}{4.1}$

i.e. c = 1 dollar

Hence, the required equation to find c is $4.12=2.45c+1.65c$ .

5 0

3 years ago

Can Somebody help me please

iogann1982 [59]

Answer:

I don't ducking know

Step-by-step explanation:

lol

8 0

2 years ago

During math class, Erik draws a circle with a compass. The circle has a radius of 3 inches. What is the circle's diameter?

sleet_krkn [62]

Answer: 6 inches

Step-by-step explanation:

The diameter is double the radius

3 0

3 years ago

Read 2 more answers

Please Hurry!!! Which expression is equivalent to 2w? <br> w+w<br> 2w+2<br> 2w-w<br> w+2

aksik [14]

Answer:

w+w

Step-by-step explanation:

3 0

3 years ago

Solve for < x < 180degrees

Tamiku [17]

Option C: 90° is the value of x.

Explanation:

The given expression is $4+2 \sin x=14-8 \sin x$ for $0^{\circ} \leq x \leq 180^{\circ}$

We need to solve the expression.

Thus, we have,

$4+2 \sin x=14-8 \sin x$

Subtracting both sides by 4, we have,

$2 \sin x=10-8 \sin x$

Adding both sides by 8 sin x, we get,

$10 \sin x=10$

Dividing both sides by 10, we have,

$sin \ x=1$

Taking $sin^{-1}$ on both sides of the equation, we get,

$x=sin^{-1}(1)$

$x=90^{\circ}$

Thus, the value of x is 90°

Hence, Option C is the correct answer.

4 0

3 years ago