3 years ago

Josef ate 1/4 a pizza in 1/2 an hour. How much pizza would Josef eat in one hour?

1 answer:

7 0

1/2 of the pizza is eaten in an hour. To get from 1/2 an hour to 1 hour, you multpily by 2. Multiply 1/4 by 2 to get 1/2.

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Solve the system of equations. 7x−3y=20 y=5x−4 x= y=

Ksenya-84 [330]

Answer:

Step-by-step explanation:

substitute the value of y in the first equation.

7x-3(5x-4)=20

7x-15x+12=20

-8x=20-12

x=8/-8

x= -1

then you substitute the value of x on the y equation to find y

y=5×-1 -4

y= -5-4

y= -9

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2 years ago

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I need help on 18,19 and 20 please help do tomorrow

Verdich [7]

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3 0

3 years ago

Whats the difference between domain and range?

ella [17]

Answer:

In its simplest form the domain is all the values that go into a function, and the range is all the values that come out.

Step-by-step explanation:

4 0

3 years ago

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What is the product of -6x3y5 and -4y2? A. -24x3y7 B. -24x3y10 C. 24x3y7 D. 24x3y10

Leto [7]

Answer:

Step-by-step explanation:

So we have the product of:

$(-6x^3y^5)\cdot(-4y^2)$

Multiply. Combine like terms:

$=(-6\cdot -4)(x^3)(y^5\cdot y^2)$

The first term is 24.

The second term stays as it is.

The third term will equate to y^7. Recall how to multiply exponents. The base stays constant and you add the exponents. Thus:

$=24x^3y^7$

Our answer is C.

And we're done!

5 0

2 years ago

Question 3. Solve each equation given below. 5 x - 4=31

harkovskaia [24]

Answer:

x = 7

Step-by-step explanation:

5x-4 = 31

5x = 31+4

5x = 35

x = 7

3 0

2 years ago