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Digiron [165]
2 years ago
8

Tina and Sam are eating from the same pizza Tina eats 1/4 of the pizza and Sam eats 1/2 of the pizza how much of the pizza did t

hey eat together
Mathematics
1 answer:
MakcuM [25]2 years ago
3 0

Step-by-step explanation:

The amount of pizza Tina eat

=  \frac{1}{4}  \\

The amount of pizza Sam eat

= \frac{1}{2}  \\

The amount of pizza they eat together

=  \frac{1}{2}  +  \frac{1}{4}  \\

=  \frac{1}{2}  \times  \frac{2}{2}  +  \frac{1}{4}  \times  \frac{1}{1} \\

= \frac{2}{4}  +  \frac{1}{4}  \\

=  \frac{2 + 1}{4}  \\

=  \frac{3}{4}  \\

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I really need this answer, its a quiz
Korvikt [17]

Step-by-step explanation:

hahahahahaha I finished math I don't want to see that

4 0
3 years ago
NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t2+121t
Alenkasestr [34]

NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by

h(t)=-4.9t^2+121t+283

The sea level is represented by h = 0, therefore, to find the corresponding time when h splashes into the ocean we have to solve for t the following equation:

h(t)=0\implies-4.9t^2+121t+283=0

Using the quadratic formula, the solution for our problem is

\begin{gathered} t=\frac{-(121)\pm\sqrt{(121)^2-4(-4.9)(283)}}{2(-4.9)} \\ =\frac{121\pm142.083778...}{9.8} \\ =\frac{121+142.083778...}{9.8} \\ =26.8452834694... \end{gathered}

The rocket splashes after 26.845 seconds.

The maximum of this function happens at the root of the derivative. Differentiating our function, we have

h^{\prime}(t)=-9.8t+121

The root is

-9.8t+121=0\implies t=\frac{121}{9.8}=12.347

Then, the maximum height is

h(12.347)=1029.99

1029.99 meters above sea level.

6 0
2 years ago
ABC shipping charges $7 plus $1 a pound to ship an overnight package. XYZ shipping charges $10 plus $0.75 a pound to ship an ove
sergij07 [2.7K]

x = lbs

y = total cost

ABC shipping: $7 + $1x = y

XYZ shipping: $10 + $0.75x = y

We set each equation equal to the other.

$7 + $1x = $10 + $0.75x. Subtract $7 from both sides and subtract $0.75x from both sides

$0.25x = $3. Divide each side by $0.25.

x = 12 lbs

When a package is 12lbs the cost is the same.

4 0
3 years ago
A youth group has a yard sale to raise money for a charity. The group earns $800 but decides to put its money in the
VladimirAG [237]

Answer:

The amount of money you will receive is $927.419

Step-by-step explanation:

Consider the provided information.

A youth group has a yard sale to raise money for a charity. The group earns $800 but decides to put its money in the  bank for a while.

We need to calculate the amount of money if hot bank pays an interest rate of 3% compounded annually, and the youth group leaves the money in for 5  years.

Future value can be calculated as:

FV=PV(1+r)^n

Substitute PV=800, r=0.03 and n=5 in above equation.

800(1+0.03)^5

800(1.03)^5=927.419

Hence, the amount of money you will receive is $927.419

4 0
3 years ago
A salesperson sold a car for $10,000 and their commission is $500. What percentage of the sale price is their commissionssion
beks73 [17]

Answer:

5%

Step-by-step explanation:

Divide the commission by the selling price of the car:

   $500

------------- = 0.05.

 $10,000

This 0.05 translates into 5%.  That's the commission rate.

7 0
3 years ago
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