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3 years ago

I need help so this is so hard and this is not me

Mathematics

1 answer:

Over [174]3 years ago

5 0

Answer:

No answer

Step-by-step explanation:

I don't think this equation has an answer.

Normally, you'd try to combine like terms

3 3/4 = 2 + 3/4

3 3/4 = 2 3/4

3 and 3/4 is not equal to 2 and 3/4.

So, I believe this equation has no answer

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Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2

andrezito [222]

Answer:

$3x+2y=315\\\\2x+4y=450$

is the system of equations representing the situation.

Step-by-step explanation:

Given:

Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes.

Now, to find the system of equations representing the situation.

Let the number of haircuts be $x.$

Let the number of hair dyes be $y.$

So, Alexandra can give 3 haircuts and 2 hair dyes in:

$3x+2y=315.$

Now, giving 2 haircuts and 4 hair dyes in:

$2x+4y=450.$

Therefore,

$3x+2y=315\\\\2x+4y=450$

is the system of equations representing the situation.

3 0

3 years ago

Tom found some foreign coins in a box. The coins were marked m,a,t,h his uncle told him that each letter on the coin has a diffe

aleksandr82 [10.1K]

Answer:

He will receive $515 for the 17 coins

Step-by-step explanation:

In this question, we are asked to calculate how much will be received for 17 coins , with each coin having a specific value in the US currency.

Obviously, there are four coins, so let’s proceed to get the amount he gets per type of coins.

For the m coin, she has 3 pieces. One m coin has a value of $10, then the amount of coins she makes on the m coins will be 3 * 10 = $30

For the a coin, he has 7 pieces. One m coin has a value of $5, then the amount of coins she makes on the a coins will be 7 * 5 = $35

For the t coin, he has 5 pieces. One t coin has a value of $50, then the amount of coins she makes on the t coins will be 5 * 50= $250

For the h coin, she has 2 pieces. One h coin has a value of $100, then the amount of coins she makes on the h coins will be 2* 100 = $200

The total amount made on the 17 coins would thus be mathematically equal to;

Amount made on m coins + Amount made on a coins + Amount made on t coins + Amount made on h coins

The total amount = $30 + $35 + $250 + $200 = $515

6 0

4 years ago

Read 2 more answers

Please help!!!!! The graph of function f is shown on the coordinate plane. Graph the line representing function g, if g is defin

dedylja [7]

Answer:

g(x) = - x + 1

Step-by-step explanation:

Lets get the equation for the graphed function

Using two points:

(0, -6) and (3, 0)

Y-intercept is known, it is -6 as per the first point

Slope is:

m = (y2 - y1)/(x2 - x1)
m = (0+6)/(3-0) = 6/3= 2

So the function f is:

f(x) = 2x - 6

g(x) is going to be

g(x) = -1/2f(x + 2) = -1/2 (2(x+2) - 6) = -1/2(2x + 4 - 6) = -1/2(2x - 2) = - x + 1

g(x) = -x + 1

The graph is attached

7 0

3 years ago

Read 2 more answers

I need help with this question please with an explanation ANSWER ASAP!!!!!!

rjkz [21]

The fish is 2.25 ft above the water surface.

Step-by-step explanation:

Step 1: Given expression for height of the fish above the water surface, y = -16x² + 12x where x is time in seconds. Find height after 0.375 seconds

⇒ y = -16(0.375)² + 12 × 0.375

= -2.25 + 4.5

= 2.25 ft

4 0

4 years ago

Help Mee Plsssssssssssss

Andreyy89

Answer:

3. t = 2

Step-by-step explanation:

5 0

3 years ago