Ask question

Ask question

All categories

Natasha2012 [34]

4 years ago

15

write an expression in simplest form that represents the total amount in each situation: Today is your friends birthday. she is

y years old. her brother is 5 years younger.

1 answer:

Vilka [71]4 years ago

7 0

Answer:

2y-5

Step-by-step explanation:

friend: y

Brother: y-5

y+y-5

aka

2y-5

You might be interested in

a box was measured with a degree of accuracy to the nearest 2cm; 24cm x 24cm x 20cm. what is the largest possible volume of the

DochEvi [55]

For any value, e.g. a, to the nearest x units, the upper and lower bounds are:
(a + x/2) and (a - x/2)
For your question, there are three dimensions so:
Dealing with the first one, we have 24 cm to the nearest 2 cm so the boundaries are:
Upper boundary: 24 + 2/2 = 25
Lower boundary: 24 - 2/2 = 23
The second dimension is the same as the first in value and is also given to the nearest 2 cm so the boundaries are the same as for the first.
The third dimension is 20 cm to the nearest 2 cm so the boundaries are:
Upper boundary: 20 + 2/2 = 21
Lower boundary: 20 - 2/2 = 19

To get the largest possible area, we take the upper bounds of all the dimensions and multiply them so:
25 * 25 * 21 = 13125 cm³

5 0

3 years ago

-21 = 4x + 7 <br> It's those 2 step equations please explain how to do it thank you.

nordsb [41]

Answer:

-21-7=4x

-28=4x

-28/4=x

-7=x

8 0

3 years ago

What is the answer to the q's

AlekseyPX

false, false, true, false

6 0

3 years ago

Help me I need to find this problem and explain It PLS

Irina-Kira [14]

Answer:

x = 8/5

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

<u /> $\frac{x}{4} = \frac{2}{5}$ <u />

<u />

<u>Step 2: Solve for </u><em><u>x</u></em>

Cross multiply: 5x = 8
Isolate <em>x</em>: x = 8/5

7 0

3 years ago

Read 2 more answers

8 strawberries 5 bananas 3 oranges <br><br> Strawberries to bananas and oranges

torisob [31]

8:5:3

hope this helps!

If not please elaborate

4 0

3 years ago