Answer:
Rosa spend altogether Is 8.64
Step-by-step explanation:
Answer:
-4
because 8 - 4 = 4 but if they are both negative it never crossed into the positive side
15% ------- 75
100% ---- n
n=(100*75)/15=500
n=500
x
=
−
7
or
x
=
−
8
Explanation:
Find a pair of factors of
56
with sum
15
.
The pair
7
,
8
works in that
7
⋅
8
=
56
and
7
+
8
=
15
Hence:
0
=
x
2
+
15
x
+
56
=
(
x
+
7
)
(
x
+
8
)
So:
x
=
−
7
or
x
=
−
8
Alternative method
Answer:
-4
Step-by-step explanation:
Wehn dealing with order of operations, we can remember the expression PEMDAS, which stands for parentheses, exponents, multiplication, division, addition, and subtraction.
So, our first step in the above problem is the parentheses:
The second step is exponents:
The third step is multiplication:
The fourth and final step is addition: