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3 years ago

Simplify the epxression: 1 point (15-5) x 2³ 60 120 20 80

Mathematics

2 answers:

IceJOKER [234]3 years ago

7 0

The answer is 80.

Written Steps:

1. Subtract the numbers 15-5=10 which = 2^3 * 10x

2. Complete the exponents. (2^3 = 8)

3. Multiply the numbers. (10 * 8)

4. Done!

Steps without words. Just numbers:

(15-5) x * 2^3 = 80x

(15 - 5) x * 2^3

15 - 5 = 10 --> 2^3 * 10x

2^3 = 8 --> 10 * 8x

10 * 8x = 80

Hope this helped :)

choli [55]3 years ago

4 0

The answer is 80.

2x2x2=8

15-5=10

10x8=80

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Miguel and three of his friends went to the movies. They originally had a total of $40. Each boy had the same amount of money an

Alenkasestr [34]

Answer:

The money each boy had after buying his ticket is $2.50.

Step-by-step explanation:

Given:

Miguel and three of his friends went to the movies. They originally had a total of $40. Each boy had the same amount of money and spent $7.50 on a ticket.

Now, to find the money each boy had after buying his ticket.

Let the money each boy had after buying his ticket be $x.$

Total number of boys = 4.

Total money they had = $40.

Money each boy spent = $7.50.

Now, to write an equation:

$4(x+7.50)=40$

Now, to solve the equation for getting the money each boy had after buying his ticket:

$4(x+7.50)=40$

$4x+30=40$

Subtracting both sides by 30 we get:

$4x=10$

Dividing both sides by 4 we get:

$x=\$2.50.$

Therefore, the money each boy had after buying his ticket is $2.50.

3 0

3 years ago

Find the dimensions of the open rectangular box of maximum volume that can be made from a sheet of cardboard 11 in. by 7 in. by

11111nata11111 [884]

Answer:

The dimension of the open rectangular box is $8.216\times 4.216\times 1.392$ .

The volume of the box is 8.217 cubic inches.

Step-by-step explanation:

Given : The open rectangular box of maximum volume that can be made from a sheet of cardboard 11 in. by 7 in. by cutting congruent squares from the corners and folding up the sides.

To find : The dimensions and the volume of the open rectangular box ?

Solution :

Let the height be 'x'.

The length of the box is '11-2x'.

The breadth of the box is '7-2x'.

The volume of the box is $V=l\times b\times h$