No, they are not. You can write ratio in different ways, so I did 2/3 = 9/6. I cross product, which is 2 × 6 and 9 × 3. Both of the answer did not match, so that tells me they are not proportional.

3 0

3 years ago

Mrs. Johnson used 4 4/5 liters of lemonade to fill 4 small pitchers. If each pitcher is the same size, how many liters of lemona

Rainbow [258]

Answer:

Each pitcher holds 1 1/5 liters of lemonade.

Step-by-step explanation:

divide 4 4/5 liters by the amount of pitchers and you get 1 1/5 as the size of one pitcher.

8 0

3 years ago

An elementary school buys tickets for a field trip to the zoo. The number of children going on the field trip is 2 times the num

ioda

To answer the question, let x be the number of adults going to the zoo and 2x be the number of children. The total amount gained from the ticket sales should be,
1650 = 6x + 4(2x)
The values of x is equal to 117.86. Therefore, the school bought approximately 118 tickets for adults and 236 for children.

4 0

3 years ago

Marty is taking piano lessons. She is going to practice every afternoon. The 1st week she practiced for 11 minutes each day. The

defon

Answer:

$m=7w+4$

Step-by-step explanation:

<u>Linear Modeling</u>

It consist is setting up a linear relationship between two variables, given some experimental data. Only 2 points are needed to set up the equation of a line, but if more than 2 points are used, then the result should use statistical approaches like linear regression to find the best-fit line.

For the question at hand, Marty practices his piano lessons 11 minutes the week #1. It provides the first point (1,11). He practices 25 minutes per day on the third week. It gives us another point (3,25). This is enough to find the equation of a line. The general formula for a line, having two points (m1,w1) (m2,w2) is

$\displaystyle m-m_1=\frac{m_2-m_1}{w_2-w_1}(w-w_1)$

Let's plug in our values

$\displaystyle m-11=\frac{25-11}{3-1}(w-1)$

Simplifying:

$m-11=7w-7$

$\boxed{m=7w+4}$

3 0

4 years ago

Square root of 9b2=25​

Square root of 9b2=25