Answer:
12
Step-by-step explanation:
Find 3/5 of 20, or 60% of 20
60%=0.60
0.60*20=12
So Delpha buys 12 packs of bubble gum.
Answer:
119 R5
divide divide divide divide
Answer:
13+(-19)=13-19=-6 is your answer
Using logarithmic laws: log(a) + log(b) = log(ab)
log₄ (x + 9) + log₄ (x + 21) = log₄ [(x + 9)(x + 21)] = 3
Since we want the equation in terms of x, the next intuitive step is take 4 to the power of both sides, because the left hand side will simplify easily.
Solving the quadratic we get:
BUT, for the logarithmic equation to be defined, x > -9, so x≠ -25
Thus, the only solution is x = -5.
Last week, the Glee Club made 437 flowers. They made 322 more this week than last week. So this could be shown in this case as 437 + 759 (since 437 + 322 = 759). This equals 1,196 flowers. To find the remaining number of required flowers, we could represent this equation as 1,196 + x = 1,250, with x representing the number of flowers still needed. Since 1,250 - 1,196 = 54, they still need to make 54 paper flowers for their parade float. Substituted back into the equation, it would look like this:
1,196 + 54 = 1,250.