Questions in Grade High-school

Questions in Grade High-school

[Homework Help] The ratio of Sam's age to Hank's age is 5 to 3. If the sum of their ages is 24, how old is Hank?

[Homework Help] The library sells 376 books at its annual used-book fundraiser, taking in a total of $2120. Children's books cost $4, and adult books cost $7. How many children's books did they sell? Let \( c \) = number of children's books sold, and \( a \) = number of adult books sold. Which system of equations can the librarians use to solve this problem? A. \[ \begin{align} 4c + 7a &= 376 \\ c + a &= 2120 \\ a &= 376 - c \end{align} \] B. \[ \begin{align} 7c + 4a &= 2120 \\ a + c &= 376 \end{align} \] C. \[ \begin{align} 4a + 7c &= 2120 \\ c + a &= 376 \end{align} \] D. \[ 4c + 7a = 2120 \]

[Homework Help] Share £72 in the ratio 2:7.

[Homework Help] The square root of 49 equals ____.

[Homework Help] Three straight lines have exactly two points of intersection. Complete the sentence below: Two of the lines must be parallel.

[Homework Help] Why is Jerusalem important to Muslims?

[Homework Help] Mothers who were unresponsive, insensitive, and coldly rejecting were associated with ___________ attached infants. A. securely B. avoidant C. ambivalent D. disorganized/disoriented E. slow-to-warm-up

[Homework Help] What is \((2 \sqrt{15})^2\)?

[Homework Help] LM is the midsegment of trapezoid ABCD. AB= x + 8, LM = 4x + 3, and DC = 187. What is the value of x?

[Homework Help] Who were the Tuskegee Airmen, and how important were they to the war effort? What successes did they achieve?