Luz earns $400 for 40 hours of work. How much will he earn for 6 hours
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Which of the following mathematical expressions isequivalent to the verbal expression “A number, x, squared is 39 more than the product of 10 and x” ? F. 2x = 39 + 10x G. 2x = 39x + 10x H. x^2 = 390 − 10x J. x^2 = 390 + x^10 K. x^2 = 390 + 10x
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-- To change any fraction into a decimal, DO THE DIVISION.
2 divided by 300 = 0.00666... repeating
-- To change any decimal into a percentage,
move the decimal point 2 places that ==> way.
0.00666... repeating = 0.666... % repeating.
That's 2/3 of 1 % .
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Answer:
75
Step-by-step explanation:
V=S/T(the formula)
V= 375/5
V=75
47.2-6
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The smallest number is 55 between 55, 57 and 59.
What is addition?
Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.
Let three consecutive odd numbers are n, n+2 and n+4.
The sum of three consecutive odd numbers is 171.
So,
Adding all three numbers,
n + n+2 + n+4 = 171
3n + 6 = 171
3n = 171 -6
3n = 165
n = 165/3
n = 55
And the other two numbers are 55+2 = 57 and 55+4 = 59.
And smallest number is 55 between 55, 57 and 59.
Therefore, the smallest number is 55.
To learn more about the addition;
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Answer:
2/√3+√5 + 5/√3-√5 = a√3 +b√5
Add fractions.
7/√3+2√5
To have √3 in numerator multiply both sides of raction by √3.
(7√3)/3+2√5 = a√3 +b√5, thus a = 7/3 and b = 2:
Make sure you wrote the equation write, because Im not sure about that.
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y - pencil
6x + 5y = 2.50
3x + 2y = 1.15
Thus, 3x = 1.15 - 2y
Therefore, 6x = 2.30 - 4y
Substituting the value of 6x ;
(2.30 - 4y) + 5y = 2.50
or, 2.30 + y = 2.50
=> y = 0.20.
Substituting the value of y ;
6x = 2.30 - 4(0.20)
6x = 2.30 - 0.80 = 1.5
6x = 1.5
=> x = 0.25
Thus, 1 pen costs 0.25 $ and 1 pencil costs 0.20$.
Thus, cost of one pen is 0.25$.
Cost of 4 pencils is 0.80 $
0.25$ + 0.80$ = 1.05$