Multiple Choice
Solve the problem.
-Mary and her brother John collect foreign coins. Mary has twice the number of coins that John has. Together they have 90 foreign coins. Find how many coins Mary has.
A) 60 coins
B) 54 coins
C) 30 coins
D) 12 coins
Correct Answer:
Verified
Correct Answer:
Verified
Q36: Solve the problem.<br>-A promotional deal for long
Q37: Solve the equation for the indicated
Q38: Solve the equation.<br>- <span class="ql-formula" data-value="\frac
Q39: Solve the equation.<br>--19 = 3x - 10<br>A)3<br>B)-3<br>C)-8<br>D)-12
Q40: Solve the equation.<br>- <span class="ql-formula" data-value="x
Q42: Solve the equation.<br>-0.05(9x - 4)= 0.45(x +
Q43: Write the algebraic expression described.<br>-If x is
Q44: Solve the equation.<br>- <span class="ql-formula" data-value="\frac
Q45: Solve.<br>-A certain vehicle has a weight
Q46: Solve.<br>-Nine times a number, added to 42,