Answer:
63 a's
Step-by-step explanation:
count it with a pen
Answer:
1/5
Step-by-step explanation:
If you only eat 3/5 of 1/3, you ate 3/5 × 1/3. Multiply fractions straight across the top and straight across the bottom to get 3/15. That reduces down to 1/5. So you ate 1/5 of the large pizza.
Answer:
74.958
Step-by-step explanation:
Because 57.66 added 30 percent is equal to 74.958
Answer:
x = 1/2 , x = -1/2
Step-by-step explanation:
Given equation;
169x² - 42.25
Find:
Solution of equation using square root
Computation:
169x² - 42.25
We know that 13² = 169 and 6.5² = 42.25
So,
[13x]² - [6.5]²
a² - b² = (a + b)(a - b)
So,
[13x]² - [6.5]² = [13x + 6.5][13x - 6.5]
So,
13x + 6.5 = 0 , 13x - 6.5 = 0
x = 6.5 / 13 , x = -6.5 / 13
x = 1/2 , x = -1/2
<u> 4 x² = 64</u>
Divide each side by 4 : x² = 16
Take the square root
of each side: x = √16
x = <em>+ 4</em>
and
x = <em>- 4</em> .
