All categories

3 years ago

A pound of chocolate costs 7 dollars. Joe buys p pounds. Write an equation to represent the total cost c that Joe pays.

Mathematics

1 answer:

pickupchik [31]3 years ago

3 0

Answer:

Total cost, c = 7p

Step-by-step explanation:

1pound =$7

Joe buys p pounds,

p pounds = $7 * p

p pounds = 7p

You might be interested in

Solve x2-8x=3 by completing the square. which is the solution set of the equation

Mazyrski [523]

we have

$x^{2}-8x=3$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2}-8x+16=3+16$

$x^{2}-8x+16=19$

Rewrite as perfect squares

$(x-4)^{2}=19$

$(x-4)^{2}=19\\ (x-4)=(+/-)\sqrt{19} \\ \\ x1=4+\sqrt{19} =8.359\\ x2=4-\sqrt{19} =-0.359$

therefore

the answer is

$x1=4+\sqrt{19} =8.359\\x2=4-\sqrt{19} =-0.359$

5 0

3 years ago

Read 2 more answers

Write an equation that has the solution x = −2

Travka [436]

Answer:

6x + 4 = -8

Step-by-step explanation:

6 (-2) = -12

-12 + 4 = -8

Hope this helps!

4 0

3 years ago

A tank is filled with 2 gallons of propane. The tank is being used to fuel a heater that uses propane at a rate of 0.5 gallons p

Vikki [24]

Answer:

fhiuqhficu3f

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A rectangle has a length that is 5 inches greater than its width, and its area is 104 square inches. The equation (x + 5)x = 104

Art [367]

Answer:

The answer is 8.

Step-by-step explanation:

We need to use the quadratic formula, that is ax2+bx+c=0

Where

$x=\frac{-b +/- \sqrt{b^{2}-4*a*c } }{2a}$

For the given equation x2+5x-104=0 we have

a=1, b=5, c= -104

If you solve that, we will have x=-13. x=8, two answers,

The first one, by being negative does not have physical sense (there are no negatives quantities when you measure the length of something)

So we use the anwser x=8

7 0

3 years ago

Read 2 more answers

What is the simplified <br> square root of 130?? <br><br> I’m really stuck

Svet_ta [14]

Answer:

The square root of 130 would be 11.4017543. Rounding to the nearest tenth, we would get 11.4, because the value 0 is below 5. Rounding 11.4 to the nearest whole number, we would get 11, because the value 4 is below 5. So either 11 or 11.4 works, depending on if you are looking for a decimal or a whole number.

Hope this helps ya :D

8 0

3 years ago