Answer:
6. D
7. B
Step-by-step explanation:
Nancy takes a test that has two sections: essay and true/false. She scores 56 points on the essay. Each true/false question is 4 points. So x number of true/false is worth 4 points each or 4x.
Together her score will be 56 + 4x.
She wants to score more than 80 or > 80.
So her test can be represented as the inequality 56 + 4x > 80.
This is solved using inverse operations.
56 + 4x > 80
4x > 24
x > 6
This should be graphed as an open circle at 6 on the umber line pointing and shaded to the the right for numbers greater than 6.
Answer:
second one
Step-by-step explanation:
x6³ = x18
x8³ = x24
x18/2 = x9
x24/2 = x12
A mixed number<span> such as 7 1/4 can be converted to a </span>decimal<span>. It is implied that 7 1/4 is really 7 + 1/4 and that 7 = 7/1 therefore we are first adding the fraction 7/1 + 1/4. Since 4 is the denominator original fraction part we will use it as our common denominator. 7/1 * 4/4 = 28/4. Hope this helps</span>
The correct answer is C! Because 21/2 = 10.5 and 10.5 x 4.5 = 47.25