3 years ago

How do you know that two expressions are equivalent

1 answer:

6 0

You know that two expressions are equivalent when if you substitute in your values and simply the expressions, they have the same answer.

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How far does a runner travel in 1.5 laps . round your answer to the nearest whole meter.help?!!!!!!!

nataly862011 [7]

1.5= 1 lap+ 0.5 lap = [2(85)+pi*(d)] + [85+pi*d/2]= 3[(85)+pi*d(1/2)]
just substitute d=74

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3 years ago

Max and Jenna are each making pastries for their family reunion. Max is making beignets with a special type of flour. For every

Ipatiy [6.2K]

Jenna can make 48 servings

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3 years ago

Find the difference:7 7/8-3 1/4=?

Arlecino [84]

Answer:

4 5/8

Step-by-step explanation:

7 7/8 - 3 1/4

7 7/8 - 3 2/8

4 5/8

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3 years ago

Billie solved the equation below by completing the square, but she got the incorrect solution. In which step did Billie first ma

Tanzania [10]

Answer:

step 2

Step-by-step explanation:

we have

$x^{2} +10x-49=0$ ---> given problem

step 1

Move the constant to the right side

$x^{2} +10x=49$

the step 1 is correct

step 2

Complete the square

$x^{2} +10x+5^2=49+5^2$

$x^{2} +10x+5^2=74$

<u><em>The step 2 is not correct</em></u>

step 3

Rewrite as perfect squares

$(x+5)^{2}=74$

step 4

take square root both sides

$x+5=\pm\sqrt{74}$

step 5

Find the values of x

$x=-5\pm\sqrt{74}$

$x=-5+\sqrt{74}$

$x=-5-\sqrt{74}$

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3 years ago

Enter the value of p so the expression 5/6-1/3nis equivalent to p(5-2n).

SIZIF [17.4K]

Take LCD of 6 and 3 = 6 is the lcm
5/6 -2/6n
(5-2n)/6.

Now, what number can be multiplied to the right side of the equal sign to get the value of P

The answer is 1/6 as the left side is divided by 6, so multiply the right side by 1/6 to make it equivalent.

6 0

3 years ago