Assume the old of Jack is X and the old of Lacy is Y
so ...
do the mathematical model ...
.
X=2Y
(X+7)+(Y+7)= 35
-
THEN
Solve the equation
y= 7
x = 14
The answer should be found by rounding 376 to 380 and 266 to 270....you will get 650
I want to say either rectangular prisim or triangle pyrimad
Answer:
-8 + 3.2z
Step-by-step explanation:
- when there is a "+" in front of an expression in parentheses, the expression remains the same
- -2 + 6.45z - 6 - 3.25z
- calculate the difference
-8 + 6.45z - 3.25z
collect like terms
-8 + 3.2z
23 x 10,000 = 230,000
Another name for 23 ten thousand is: Two hundred thirty thousand
And another name also is: 230 Thousands
