Answer:
-9ab3a3b-52
Step-by-step explanation:
-8a3b+3a2b2-52+5a2b3a3b+7-9a2b2
-8a3b-6a-52+5a2b3a3b
-14a3b-52+5a2b3a3b
-9ab3a3b-52
Answer:
157???
Step-by-step explanation:
I don't really know how to do this
25. You have to do 65x65-(60x60) and the square root it
-8 + 7y = - 18
7y =10
y =10/7
Substitute y = 10/7 into first equation
4x - 7 (10/7)=2
4x - 10 =2
4x = 12
x = 3
Thus, the solution is x = 3 and y = 10/7
Answer:
40 grams of 40% sugar syrup
Step-by-step explanation:
It is 40g because you are adding 10g of sugar to 30g of syrup
It is 40 % syrup because you start out with 20% sugar in 30 g. That means the 1/5 of the syrup is sugar. That means that 6g is sugar. Then you add ten more grams of sugar. Now you have 16g of sugar in 40 grams of syrup.
Make equation to find percent
16/40=x/100
x=40
