First do 42-10
which is 32
then divide 32 by 2 and get 16
so your answer is 16 math problems and 26 science problems
Answer:
$15.90
Step-by-step explanation:
80 - 16.40 = 63.60
63.60÷4 =15.9
15.9 = $15.90
Answer:
Step-by-step explanation:
What we want to fator is:
There is no common factor, but let's factor it by grouping. The first two addends can be factor as follows:
the second addends can be factor as well:
.
Then our original expression can be rewritten like
And here the is the common factor!
Finally, we can factor the quadratic expression as a difference of squares
Ant we get
now, we can extract the negative sign from , and we get
.
Answer:
7
or -7
Step-by-step explanation:
sqrt(49)
What number multiplied by itself = 49
7*7 = 49
-7*-7 = 49
Answer:
x = -1/10 or -0.1
Step-by-step explanation:
-1.8 - 6x = 6(0.1 + 3x)
-1.8 - 6x = 0.6 + 18x
-6x - 18x = 0.6 + 1.8
-24x = 2.4
-x = 2.4/24
-x = 24/10 / 24
-x = 24/10 * 1/24
-x = 24/240
-x = 1/10
x = -0.1