HELP PLS ANSWER ASAP. Which number is greater and by how much: A decreased by 50% and then increased by 50% of the result

Mathematics

1 answer:

FinnZ [79.3K]2 years ago

5 0

Answer:

a is greater by 25

Step-by-step explanation:

if a=100

then,100-50=50-25=25

so same way= a is greater by 25

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You are choosing between two different cell phone plans. The first plan charges a rate of

Zolol [24]

Answer:

at least 450 minutes

Step-by-step explanation:

Find an expression for the cost of each plan as a function of the number of minutes. Set the expressions equal to each other, and solve for the number of minutes.

Let x = number of minutes.

First plan:

cost (in dollars) = 0.21x

Second plan:

cost (in dollars) = 0.11x + 44.95

Set the expressions equal:

0.21x = 0.11x + 44.95

Subtract 0.11x from both sides.

0.1x = 44.95

Divide both sides by 0.1

x = 44.95/0.1

x = 449.5

Since you cannot have a fraction of a minute, the answer is 450 minutes.

3 0

2 years ago

Joe needs to buy supplies for a birthday party. At the store, balloons cost $0.50 each and party hats each cost $1.25. If Joe wa

VladimirAG [237]

Answer:

$0.50b+1.25h=20$

Step-by-step explanation:

Let b be the number of balloons and h be number of party hats.

We have been given that balloons cost $0.50 each, so cost of b balloons will be 0.50b.

We are also told that party hats each cost $1.25, so cost of h party hats will be 1.25h.

Further, Joe wants to spend exactly $20 on the party supplies. We can represent this information in an equation as:

$0.50b+1.25h=20$

Therefore, the equation $0.50b+1.25h=20$ represents the number of balloons ( b) and the number of party hats ( h) that Joe can buy spending exactly $20.

5 0

3 years ago

Factor the following quadratic function (put the lesser value first).<br> x2 + 5x + 6

Anestetic [448]

Answer: Evaluate

$5x+x_{2} +6$