Brian is having a baseball-shaped piñata at his birthday party. If the piñata has a diameter of 12 inches, approximately how man
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Answer:
The inequality can be represented as:
where represents the number of weeks in which Maria will be able to buy a phone for least $200.
On solving it we get :
Step-by-step explanation:
Given:
Maria wants to buy a phone for at least $200.
She has savings of $125.
She plans to save $10 every week.
To write an inequality for the situation.
Solution:
Let the number of weeks in which Maria will be able to buy a phone be =
If she saves $10 each week.
Then, in weeks she will save in dollars =
She already has savings = $125
So her total savings in weeks in dollars will be =
She wants to buy a phone for at least $200.
Thus, the inequality can be represented as:
Solving for
Subtracting both sides by 125.
Dividing both sides by 10.
Thus Maria needs at least 7.5 weeks to be able to buy a phone for atleast $200.
The point (4,y) has a known x coordinate of x = 4. The y coordinate is unknown right now so we'll just call it y.
Draw a vertical line (see side note below) through 4 on the x axis. I've done so in red (see attached image). The red line crosses the graph at the point (4,1) so this tells us that y = 1
Answer: y = 1
Side Note: you don't have to draw a vertical red line but it's handy to see how it works out. After you get used to these types of problems, you can visually be able to see the answer without these extra lines.
Draw a vertical line (see side note below) through 4 on the x axis. I've done so in red (see attached image). The red line crosses the graph at the point (4,1) so this tells us that y = 1
Answer: y = 1
Side Note: you don't have to draw a vertical red line but it's handy to see how it works out. After you get used to these types of problems, you can visually be able to see the answer without these extra lines.
The answer is in the image. We need 3.625 gallons to fill the tank.
