Responses
x − 19 = 7
x minus 19 equals 7
x + 19 = 7
x plus 19 equals 7
x + 7 = 19
x plus 7 equals 19
x − 7 = 19
11 answers
To determine Mario's present age, we know that in 7 years he will be 19 years old. We can set up the equation based on this information.
The correct equation is:
x + 7 = 19
This represents that if you add 7 years to Mario's current age (x), he will be 19 years old.
To determine how many hours Maria still needs to spend to complete her community service program, we can set up an equation based on the total hours required and the hours she has already completed.
Maria needs to complete a total of \(5 \frac{1}{2}\) hours, and she has already spent \(3 \frac{3}{4}\) hours. The equation to find the remaining hours \(h\) that she needs to spend can be set up as follows:
\[ h = 5 \frac{1}{2} - 3 \frac{3}{4} \]
To express this in a standard linear equation format:
\[ h + 3 \frac{3}{4} = 5 \frac{1}{2} \]
Thus, the equation that can be used to determine the number of hours \(h\) that Maria still needs to spend is:
\[ h + 3 \frac{3}{4} = 5 \frac{1}{2} \]
To determine the amount of money you had in your piggy bank before buying the toy, we know that you spent $13.32 and were left with $25.70. This leads to the equation:
\[ p - 13.32 = 25.70 \]
This means that the total amount of money \(p\) you had originally minus the amount spent ($13.32) equals the amount you have left ($25.70).
To solve for \(p\):
\[ p = 25.70 + 13.32 \]
Calculating that gives:
\[ p = 39.02 \]
So the correct equation is:
p − 13.32 = 25.70; there was $39.02 in the piggy bank.
To determine how many balloons Alexa popped, we know that Krista popped 5 balloons and together they popped a total of 13 balloons. We can set up the equation as follows:
\[ n + 5 = 13 \]
This equation states that the number of balloons Alexa popped (n) plus the number of balloons Krista popped (5) equals the total number of balloons popped (13).
To find out how many balloons Alexa popped, we can solve for \(n\):
\[ n = 13 - 5 \] \[ n = 8 \]
So, the correct equation is:
n + 5 = 13; Alexa popped 8 balloons.
To determine the water level of the dam last month, we can set up the equation based on the given information. If the water level decreased by 8.8 meters last month and is now at 95.3 meters, we can express the relationship as:
\[ w - 8.8 = 95.3 \]
Where \(w\) represents the water level last month.
To find out what the water level was last month, we can solve for \(w\):
\[ w = 95.3 + 8.8 \] \[ w = 104.1 \]
So, the correct equation is:
w − 8.8 = 95.3; the water level of the dam last month was 104.1 meters.
Thank you! I'm glad to hear that the information was helpful and accurate. If you have any more questions or need assistance with anything else, feel free to ask! 😊
