Complete the equation of the line through (2,1)and (5,-8)

1 answer:

4 0

$m = \frac{ - 8 - 1}{5 - 2} \\ = \frac { - 9}{3} \\ m = - 3 \\ y = mx + c \\ 1 = - 3(2) + c \\ c = 7 \\ y = mx + c \\ y = - 3x + 7$

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Maria runs 7 miles in 80 minutes. at the same rate, how many miles would she run in 64 minutes

Alex777 [14]

Answer:

5.6 miles

Step-by-step explanation:

Firstly, we need to find the unit rate (the number of miles in 1 minutes).

To get this, we need to divide total miles ran (7 miles) by the total minutes taken (80 minutes). Thus, we will have MILES PER MINUTE.

7 miles ÷ 80 minutes = 7/80 miles per minute

Now,

We want number of miles in 64 minutes. Since we know "PER MINUTE", we simply multiply that with 64 to get number of miles in that amount of time.

THus,

$\frac{7}{80}*64=\frac{56}{10}=5.6$

So, in 64 minutes, Maria can run 5.6 miles

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3 years ago

Which of the following statements does NOT adequately describe a developmental progression?

Artyom0805 [142]

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<h3>What is developmental progression?</h3>

The Developmental Progression of Functional Skills is a concept which describes the child's growth in which case, the child's develops relationship with family members and a sense of self in the process and this concept in discuss is not limited to four-year olds.

Read more on developmental progression;

brainly.com/question/13670359

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6 0

1 year ago

2. Find the value of the expression 21 – 2a if a = 3.

timama [110]

Answer:

Step-by-step explanation:

we just substitute the value of "a" given in the above expression we get

21-2(3)

21-6=15