get a common denominator of 24
2/3 * 8/8 vs 7/8 * 3/3
16/24 vs 21/24
16/24<21/24
2/3 <7/8
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Answer:
C
Step-by-step explanation:
To add the polynomials you can only add like terms. Like terms are terms that have the same variables and exponents. Only -5 and 4 are like terms. So leave the other terms alone.
The sum is 11x^2 + x - 1.
Answer:
Each student gets 575 gram of clay
Step-by-step explanation:
1 kg = 1000 g
Mass of the total clay = 6.9 kg = 6.9 * 1000 = 6900.0 = 6900 g
Clay received by each student = Total / Number of students
= 6900 / 12
= 575 g
Answer:
The numbers are x = 3 and y = 1. Therefore the value of xy is 3.
Step-by-step explanation:
In order to calculate the numbers we will simplify the equation, this is done bellow:
2*x + x(2^2) + (y*2^3) + (y*2^4) = 42
2*x + 4*x + 8*y + 16*y = 42
6*x + 24*y = 42
We can divide the whole equation by 6, so we have:
x + 4*y = 7
The only possible combination of numbers that are positive and integers that will make the equation valid is x = 3 and y = 1. Therefore he value of xy is 3.