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Juli2301 [7.4K]
2 years ago
14

Suppose the equation 28 = x•4 in the Example is written in the form 4x = 28.

Mathematics
1 answer:
maria [59]2 years ago
6 0

Answer:

Divide each term in

4

x

=

28

by

4

.

4

x

4

=

28

4

Cancel the common factor of

4

.

Tap for more steps...

x

=

28

4

Divide

28

by

4

.

x

=

7

Step-by-step explanation:

hope it helps you

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Helpppppp :((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((9999
Anni [7]

Answer is C and E.

All of the other ones don't follow order of operations properly.

4 0
3 years ago
The difference of the square of a number and 40 is equal to 3 times that number. Find the positive solution.
Wewaii [24]

Answer: The answer is 8.

Step-by-step explanation: The first step is to convert the expression into figures. We shall call the unknown number Y. So if we are told “the square of a number,” that means Y squared, or better still, Y^2. Further we are told “the difference between the square of a number and 40” and that can be written as;

Y^2 - 40.

Next we are told that this expression is equal to 3 times that number (that is 3Y). That can now be written out as follows,

Y^2 - 40 = 3Y

If we move all expressions to one side of the equation, what we would have is,

Y^2 - 3Y -40 = 0

(Remember that when a positive value crosses to the other side of an equation it becomes negative and vice versa)

We now have a quadratic equation

Y^2 -3Y - 40 = 0

By factorizing we now have

(Y -8) (Y + 5) = 0

Therefore Y - 8 = 0 or

Y + 5 = 0

Hence, Y = 8 or Y = -5

Since we are asked to calculate the positive solution, Y = 8

5 0
3 years ago
Please help me find x.
aleksklad [387]
Multiply 10 times 5 then divide it by 4

3 0
3 years ago
Read 2 more answers
Order least to greatest 0.5,3.16,0.75,11/48
lys-0071 [83]

11/48=.23

11/48, .5, .75, 3.16

Hope this helps

8 0
3 years ago
in a box of chocolates, 1/5 of the chocolates contain nuts. the rest of the chocolates do not contain nuts. write down the ratio
valina [46]

Answer:

The ratio of the number of chocolates that contain nuts to the number of chocolates = 1:4

Step-by-step explanation:

The parameters given are;

Proportion of the box of chocolates that contain nuts = 1/5

Proportion of the box of chocolates that do not contain nuts = 1 - 1/5 = 4/5

Therefore, we have in a box of chocolates with five chocolates;

The number of chocolates that contain nuts = 1

The number of chocolates that do not contain nuts = 4

Which gives the ratio of the number of chocolates that contain nuts to the number of chocolates as 1:4.

4 0
2 years ago
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