En el campamento al que fue Daniel, se repartieron los litros de agua a los asistentes de manera que el reparto fue justo. Si asistieron al campamento 90 niños, repartidos en cuatro cabañas, como se muestra en tabla y habia 720 litros de agua, ¿Cuántos litros de agua le toco a cada cabana?

Solve by graphing. \( \left\{\begin{array}{l}-x+3 y=3 \\ 5 x-15 y=-15\end{array}\right. \)

You are running a fuel economy study. One of the cars you find is blue. It can travel \( 33 \frac{7}{2} \) miles on \( 1 \frac{7}{4} \) gallons of gasoline. Another car is red. It can travel \( 27 \frac{1}{5} \) miles on \( \frac{4}{5} \) gallon of gasoline. What is the unit rate for miles per gallon for each car? Which car could travel the greater distance on 1 gallon of gasoline?

Compute the discriminant. Then determine the number and type of solutions for the given equation. \[ 4 x^{2}+x+3=0 \] The value of the discriminant is \( \square \). (Simplify your answer.)

Solve the equation by the square root property. If possible, simplify radicals or rationalize denominators. \( 5 x^{2}=65 \) The solution set is \( \{\square\} \). (Type an exact answer, using radicals as needed. Use a comma to separate answers as needed. Express imagina

The temperature, T , in degrees Fahrenheit, in a car's radiator during the first 4 minutes of driving is a function of time, t . The temperature can be found by the formula \( \mathrm{T}=6.3 \mathrm{t}^{2}+11 \mathrm{t}+32,0 \leq \mathrm{t} \leq 4 \). a) What is the car radiator's temperature at the instant the car is turned on? b) What is the car radiator's temperature after the car has been driven for 2 minutes? c) How long after the car has begun operating'will the car radiator's temperature reach \( 100^{\circ} \mathrm{F} \) ?