Answer:
it means to find the undefined number
we should solve for the variable to find the answer to the equation
we solve for the variable by using the elimination method
Step-by-step explanation:
15 x 3= 45 so therefore 45 is the length hope that help!
Problem 9
By definition,

Answer: 502.4 m
Problem 10
From geometry, the angle opposite x is 27°.
By definition,

Answer: 263.3 yd
Answer:
Number of cards given to sister = 35 card
Step-by-step explanation:
Find baseball card on Monday = 12
Find baseball card on Tuesday = 12 + 24 = 36
Remain baseball card = 13
Find:
Number of cards given to sister
Computation:
Number of cards given to sister = Find baseball card on Monday + Find baseball card on Tuesday - Remain baseball card
Number of cards given to sister = 12 + 36 - 13
Number of cards given to sister = 35 card