Answer:
10
Step-by-step explanation:
25-10+3-8
15+3-8
18-8
10
Answer:
first number(x) = 2 second number(y)= 6
Step-by-step explanation:
This is an example of a simultaneous equation.
First write this word problem as equations, where x is the "first number" that you've mentioned and y is the "second number".
x + 2y = 14 (equation 1)
2x + y = 10 (equation 2)
This is solved using the elimination method.
We need to make one of the coefficients the same - in this case we can make y the same. In order to do this we need to multiply equation 2 by 2, so that y becomes 2y.
2x + y = 10 MULTIPLY BY 2
4x + 2y = 20 (this is now our new equation 2 with the same y coefficient)
Now subtract equation 1 from equation 2.
4x - x + 2y - 2y = 20 - 14 (2y cancels out here)
3x = 6
x = 2
Now we substitute our x value into equation 1 to find the value of y.
2 + 2y = 14
2y = 12
y = 6
Hope this has answered your question.
Answer:
The answer would be 11.51
Step-by-step explanation:
π is rougroughly 3.14
√70 = 8.37
3.14 + 8.37 = 11.51
Answer:
n = 1500
Step-by-step explanation:
The sample size is the number of students that were asked
n = 1500
Answer: X=0.28571428571
Step-by-step explanation:
-10x divide by 10 =x , -10 divide by 35=0.28571428571
