3 years ago

Phrases like _ or __ indicate that you need to reverse the order.

Mathematics

1 answer:

steposvetlana [31]3 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

In the equation below, for what value of c does x = 4?<br> 1 / (2x + 4) = 3x-c

rodikova [14]

Answer:

Option D.

Jenn's answer is not correct. She got it substituting $c=4$ into the equation and solving for "x".

Step-by-step explanation:

Given the following equation:

$\frac{1}{2}(2x + 4) = 3x-c$

Since you need that $x=4$ , you hace to substitute that value into the equation:

$\frac{1}{2}(2(4) + 4) = 3(4)-c$

Now you need to solve for "c":

$\frac{1}{2}(8 + 4) = 12-c\\\\\frac{12}{2}= 12-c\\\\6=12-c\\\\c+6=12\\\\c=12-6\\\\c=6$

Therefore for a a value of $c=6$ , you get $x=4$

Then, the you can identify that the correct answer is the one given in the Option D.

Jenn made a mistake, because she substituted $c=4$ into the equation and then solve for "x":

$\frac{1}{2}(2x + 4) = 3x-(4)\\\\x+2=3x-4\\\\2+4=3x-x\\\\6=2x\\\\\frac{6}{2}=x\\\\x=3$

3 0

3 years ago

The members of the PTA are ordering pizza for a meeting. They plan to order 2 cheese pizzas for every 3 pepperoni pizzas they or

strojnjashka [21]

Answer:

6 cheese pizzas

Step-by-step explanation:

3 / 9 = 3

3x2=6

3 0

3 years ago

Find the volume of the sphere.

Agata [3.3K]

Answer:

The volume is 33.51

Step-by-step explanation:

The formula for the volume of a sphere is 4/3πr³

6 0

4 years ago

Can some one help me ???

babymother [125]

The 4th option is correct

5 0

3 years ago

A hippopotamus eats 100 pounds of food a day. how many days would it take the hippo to eat 1 ton of food.

Allushta [10]

1 ton = 2000 pounds

2000/100 = 20

20 days

8 0

4 years ago

Phrases like _______ or ________ indicate that you need to reverse the order.

Phrases like _ or __ indicate that you need to reverse the order.