3 years ago

What can you say about the y-help urgent!!!

Mathematics

1 answer:

weeeeeb [17]3 years ago

3 0

The correct answer is ( A )

let me know if you need explanation.

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Step 1: 12x – 15 – 12x = 7x + 20

stealth61 [152]

Step-by-step explanation:

step 1. 12x - 15 - 12x = 7x + 20

step 2. 12x - 12x - 15 = 7x + 20 (grouping of terms)

step 3. -15 = 7x + 20 (adding like terms)

step 4. -35 = 7x (subtract 20 from both sides)

step 5. this step is incorrect.

step 6. -5 = x ( divide both sides by 7)

step 7. x = -5 (put the variable first).

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3 years ago

The average price of a gallon of milk is $3.31. If the price increases .88% each year , how much will a gallon of milk cost in 2

musickatia [10]

Answer:

$3.94

Step-by-step explanation:

You will need to use the compound interest formula for this.

$P(1+\frac{r}{n} )^{nt}$

P = initial balance

r = interest rate

n = number of times compounded annually

t = time

Your equation will look like this:

$3.31(1+\frac{.0088}{1} )^{20}$ = 3.94

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3 years ago

The formula f equals c over lambda, where f = frequency, c = wave speed, and λ = wavelength, is used to calculate frequency. Sol

Alexus [3.1K]

Answer:

B. c = fλ

Step-by-step explanation:

The given equation is

$f=\frac{c}{\lambda}$

To solve for c you must multiply both sides of the equation by lambda.

$f=\frac{c}{\lambda}\\f\lambda=\frac{c}{\lambda}*\lambda \\f \lambda=c$

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3 years ago

Read 2 more answers

A flight of stairs is supported by two columns, as shown in the diagram.

dangina [55]

Answer:

12 feet

Step-by-step explanation:

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The monthly rent of Marilyn's house went from $500 to $440, If p is the

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Answer:

Step-by-step explanation:

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