Answer: Volume = 42 cubic cm.
Explanation: Equation to find a pyramid is l x w x h / 3, so you multiply the length, width, and height to get 1260. Divide that by 3, and you get 420.
Answer: it would take 12 hours before you pay the same amount for both companies.
Step-by-step explanation:
Let x represent the number of hours that you spend at either company A or company B
Let y represent the total amount paid for x hours at company A
Let z represent the total amount paid for x hours at company B
Company A charges $120 for parts and $50 per hour. This means that the total amount for x hours would be
y = 50x + 120
Company B charges $60 for parts and $65 per hour. This means that the total amount for x hours would be
z = 65x + 60
To determine the number of hours before the amount for both companies becomes the same, we would equate y to z. It becomes
50x + 120 = 65x + 60
65x - 50x = 120 - 60
5x = 60
x = 12
To check your answer in long division multiply the divisor by the quotient to get your dividend
Answer:
21X+23
Step-by-step explanation:
Answer:
divide by 5: x = 13/5 = 2.6
Step-by-step explanation:
Make use of the properties of the multiplicative inverse and the multiplication identity element. Multiplying both sides of the equation by the multiplicative inverse of the coefficient of x makes the result be 1x on the left side.
(1/5)(5x) = (1/5)(13)
1x = 13/5
The multiplicative identity element (1) does not change the value of what it multiplies, so this simplifies to ...
x = 13/5
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Effectively, we divide (both sides) by 5.