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Ivahew
3 days ago
10

Bob is taking his son to look at colleges. The first college they plan to visit is 150 miles from their home. In the first hour

they drive at a rate of 60 mph. If they want to reach their destination in 2.5 hours, what speed must they average for the remainder of their trip? (I wouldn't mind if you use a proportion since that's how I'm supposed to solve it)
Mathematics
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Which expression gives the distance between the points (4, 6) and (7, -3)?
PIT_PIT [12445]
The distance formula is
\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}. In the ordered pairs (4, 6), the first number 4 represents the x-coordinate while 6 is the y-coordinate. In (7, -3), 7 is the x-coordinate and -3 is the y-coordinate. Substituting these coordinates results in
\sqrt{(4-7)^2+(6--3)^2}. Since subtracting a negative is equivalent to adding a positive, we now have

6 0
2 months ago
Read 2 more answers
Moesha and Keyon are mailing invitations for their wedding. They have $50 to spend and each invitation costs $1.25 to mail. The
zzz [12365]

Answer:

The solution to the equation is 40

This indicates the max number of wedding invitations they can afford to send within their budget.

Step-by-step explanation:

To find the zero of the function, we set the dependent variable (here, m) to zero.

So we have;

0 = 50-1.25w

1.25w = 50

w = 50/1.25

w = 40

What implication does this have in this context?

Essentially, it means that the couple can send out invitations to a total of 40 people based on their budget.

7 0
3 months ago
E saca una bola de billar al azar de una caja que contiene 15 bolas de billar numeradas del 1 al 15 y se registra el número obte
Zina [12379]

Respuesta:

P = 2/7 = 0.2857 o 28.57%

Explicación paso a paso:

En primer lugar, sabemos que hay 15 bolas y necesitamos identificar cuáles son pares y superiores a 10.

Por lo tanto, debemos calcular inicialmente la probabilidad de que el número obtenido sea par.

Los números pares son 2, 4, 6, 8, 10, 12, 14

Contamos 7 números de 15 ---> P(B) = 7/15

De esos números, solo dos son mayores a 10, que son 12 y 14, así que: P(A|B) = 2/15

Para encontrar la probabilidad de obtener un número par mayor que 10:

P(A/B) = P(A|B) / P(B)

P(A/B) = 2/15 / 7/15 = 2/7 = 0.2857

Para calcular el porcentaje: 0.2857 * 100 = 28.57%.

5 0
2 months ago
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