MATHEMATICS MIDDLE SCHOOL

What number both have 12 as a GFC

Answers

Answer 1

Answer: 24 and 12 because 24; 1, 2,4,6,8,12,24 12;1,2,3,4,6,12

Answer 2

Answer:

I said 12 and 24. 12= 1, 2 , 3 , 4 , 6, 12.

24: 1, 2, 3, 4, 6, 8, 12, 24.

my answers is 12 and 24.

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Karen bakes cookies. she has observed that the number of cookies m that turn out well in each batch varies with the size of the batch and is given by the function f(x)= 2x-23 where c is the size of the batch (number of cookies in each batch). she never bakes fewer than 12 cookies in a batch. if the size of 5 batches is {20,25,26,27,34}, how many cookies turn out well in each batch?

Larry and Willa are each reading the same book. Larry has read 2/3 of the book. Willa said that she has read 4/6 of the book, so she read more. Is Willa correct? Explain.

Answers

Willa isn't correct because 2/3 is the same amount as 4/6. You now this because you multiply 2 to both den and num (bottom +Top of a fraction).

Find an expression for the function f(x) whose graph is a line passing through the points (6,-1) and (-3,-2). F(x) =

Answers

Answer:

Step-by-step explanation:

f(x) = ax+b

passing through the point (6,-1) : when x = 6 f(x) = -1

means : -1 = a (6)+b

passing through the point (-3,-2) : when x = -3 f(x) = -2

means : --2 = a (-3)+b

you have the system :: 6a +b = - 1......(1)

-3a +b = -2........(2)

by (1) : b = -1 - 6a

by (2) : b = -2+3a

so : -2+3a = -1 - 6a

3a+6a =2 -1

9a =1 a =1/9 put the value of a in (1) or (2) : -3(1/9)+b = - 2

-1/3 +b = - 2

b = -2+1/3

b = -5/3

f(x) = 1/9 x - 5/3

Find the average rate of change for f(x) = x2 + 9x + 18 from x = 10 to x = 20.A) 33
B) 37
C) 39
D) 41

Answers

Answer:

The average rate of change is 39

Step-by-step explanation:

First, plug x=10 and x=20 into the formula:

10^2+90+18

190+18

208

20^2+180+18

400+198

598

598-208=390

390/10 = 39

The average rate of change is 39

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Three hundred vehicles are parked in a parking garage. Seventy percent of the vehicles are midsized cars. Which equation can be used to find the number of midsized cars in the parking garage?