Answer:
x = 0.357143
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtract Property of Equality
Step-by-step explanation:
<u>Step 1: Define</u>
-1.6 - 2x = 5x + 0.9
<u>Step 2: Solve for </u><em><u>x</u></em>
- Add 2x on both sides: -1.6 = 7x + 0.9
- Subtract 0.9 on both sides: 2.5 = 7x
- Divide 7 on both sides: 0.357143 = x
- Rewrite: x = 0.357143
Given:
Renee has dimes and quarters in her wallet that total $1.60.
She has 2 more dimes than quarters.
To find:
The number of each type of coins.
Solution:
Let x be the number of dimes and y be the number of quarters.
She has 2 more dimes than quarters. So,
...(i)
We know that,
1 dime = $0.10
1 quarter = $0.25
Renee has dimes and quarters in her wallet that total $1.60. So,
...(ii)
From (i) and (ii), we get
Divide both sides by 0.35.
Substituting in (i), we get
Therefore, the number of dimes is 6 and the number of quarters is 4.
Answer:
3.92
×
10
^18
Step-by-step explanation:
(7 x 10^*9)(5.6 x 10^*8)
(7000000000)(560000000)
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
If the decimal is moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
Answer:
<em>62.5%</em>
Step-by-step explanation:
The store buys 500 shirts for $8,000.
The store bought each shirt for $8,000/250 = $32.
The markup on each shirt is $20. The percent markup is the percent that $20 is of $32. In other words, what percent is $20 out of $32?
To find what percent a part is of a whole, divide the part by the whole and multiply by 100.
percent markup = $20/$32 * 100 = 62.5%
Answer:
HERE IS YOUR ANSWER
Step-by-step explanation:
volume = length × width × height
30 = 2 × 3 × h
30 = 6h
5=h
It is 5 cm high
Hope it helps you
Regards,
Rachana
