A jeweler has five rings, each weighing 18 grams, made of an alloy of 10% silver and 90% gold. He decides to melt down the rings and add enough silver to reduce the gold content to 45 %. How much silver should he add?

36:20 in simplest form

What is a acidic solution

Kay added 253 + 14 and got a sum of 393. What did she do wrong? Kay did not line up the digits with the same place value. Kay incorrectly added together 3 ones and 4 ones. Kay incorrectly added together 5 tens and 1 ten.

2 6/27 in simplest form

Each member of a cross - country team runs 6.2 miles each day at practice. The team has 5 members. What is the total number of miles the 5 members will run in 18 practices? A : 111.6 B : 552 C : 555 D : 558

Which of the following is the solution 4|x+3|≥8

Ms. Tucker travels through two intersections with traffic lights as she drives to the market. The traffic lights operate independently. The probability that both lights will be red when she reaches them is 0.22.

It's a four digit whole number It is divisible by 5 The sum of its digits is 12 The sum of it hundreds, tens, and ones digit is 8 The sum of its ten and ones digit is 1 It is divisible by 6 The difference between its ten and ones digit is 1 It is

A pair of intigers whose sum is negative two

One-third of the fish in Liam's fish tank were added today. Half of the other fish were a gift to Liam last week. the other 9 came from Liam's old fish tank.