Start off by distributing the numbers into the parentheses:
5(-3x - 2) - (x - 3) = -4(4x + 5) + 13
-15x - 10 - (x - 3) = -16x - 20 + 13
(Note: It's super important to be careful when opening up negative parentheses! -(x-3) is not just - x - 3, it is actually -x + 3 since the negative is distributed in every number!)
-15x - 10 - x + 3 = -16x - 20 + 13
-16x - 7 = -16x - 7
-16x = -16x
0 = 0
There is an infinite number of solutions in this equation.
(When you get 0=0 when solving for a variable, that means that said variable will have infinite solutions, that is, any number plugged into the equation will work)
Answer:
-3=log base 4 1/64
Step-by-step explanation:
This was hard to write because you cant do base on keyboard.
The number of students like physics more than mathematics is 15 , Option B is the correct answer.
<h3>What is a Number ?</h3>
A mathematical way of expressing quantity of a substance is called a Number.
Number of students in a school who like mathematics = 20
Number of students in a school who like physics = 35
number of students in a school who like only physics is 20
number of students who like only Mathematics is 5
the number of students like physics more than mathematics is 20-5 = 15
Therefore Option B is the correct answer.
To know more about Number
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Answer:
8 teaspoons of vanilla
15 cups of flour
Step-by-step explanation:
Since 20 is 4 x 5
And the flour and vanilla has to be proportionate, You also have to multiply 2 tablespoons of vanilla by 4
4 x 2 = 8
Same with the last question
Answer:
He has 42 more minutes to drive and 44 miles to cover to arrive at the university
Step-by-step explanation:
If he drives 63 miles in 1 hr
he would drive 107 miles in
107/ 63 = 1.7 hours
to convert 0.7 to time, multiply by 60 = 42 minutes
his total travel time is 1 hr 42 minutes
He has 42 more minutes to drive and 44 miles to drive
