MATHEMATICS MIDDLE SCHOOL

A bag contains 42 cups of dog food. Your dog eats 2 1/3cups of dog food each day. Is there enough food to last 3 weeks?

Answers

Answer 1
Answer:

Answer:

it will last 18 days

Step-by-step explanation:

divide 42 by 2 1/3

2 1/3 = 7/3

42 / 7/3 =

42 * 3/7 =

126/7 = 18

if this isn't enough then here

The number of days it will take the dog to consume the 42 cup of food will be 18 days.

Total cups of dog food = 42 cups

Amount of cups consumed per day =

To obtain the number of days it will take to consume the entire food :

Divide the total amount of food by the amount consumed per day

Hence,

(42 ÷ (7/3))

Take the reciprocal of 7/3 and change the operation sign to multiplication

42 × 3/7 = (42 × 3) / 7 = 126 / 7 = 18 days

Therefore, it will take the dog 18 days to finish up the 42 cups of food.

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In a group of 48 children there are twice as many boys than girls how many girls are there

Answers

let x be the number of girls
let 2x be the number of boys
given that There are 48 children.

x+2x=48x=48/3x=16
therefore there are 16 girls in the group...
If you take 48 divied by 3 you get 16 and 16+16 =32 guys
32+16=48
16 girls

A plants height is 1.6 times its age. Write an equation for the situation, where h is the plants height and y is the plants age

Answers

Answer:  The required equation ish=1.6y

Step-by-step explanation:  Given that a plants height is 1.6 times its age.

We are to write an equation for the situation, where h is the plants height and y is the plants age.

The given situation can be written in equation form as follows :

h=1.6* y\n\n\Rightarrow h=1.6y.

Thus, the required equation ish=1.6y
y x 1.6 = h Because, if the height of the plant is 1.6 times its age all you have to do is multiply y by 1.6 and you'll get the height of the plant

What is 9 1/5-3 2/3

Answers

the notebook

9 (1)/(5) - 3 (2)/(3) = \n \n 9 (3)/(15) -3 (10)/(15) = \n \n 8 (18)/(15) - 3 (10)/(15) = \n \n 5 (8)/(15)
explanation

We have a mixed operation with numbers . Each number is a whole and fractions . Then we subtract the total from the whole and fractions of fractions

9 (1)/(5)   the number of mixed
9 integer
(1)/(5)  fraction

9 (1)/(5) - 3 (2)/(3) = \n \n 3 + 6 (1)/(5) - 3 - (2)/(3) = \n \n 6 (1)/(5) - (2)/(3) =

by subtracting fractions must have the same value in the denominator .

6 (1*3)/(5*3) - (2*5)/(3*5) = \n \n 6 (3)/(15) - (10)/(15) =

3/15 < 10/15 We have to take the total 1 to subtract it was possible

5 + 1 (3)/(15) - (10)/(15) = \n \n 5 + (15)/(15) + (3)/(15) - (10)/(15) = \n \n 5 (18)/(15) - (10)/(15) = 5 (8)/(15)

Jason entered the elevator of the skyscraper on the ground floor and rode up to the 45th floor. Since Jason was texting, he didn’t notice where he was, so he then rode down 28 floors and finally up 15 floors where he exited the elevator. On what floor did Jason exit the elevator?

Floor

Answers

ok here's how i think you do it you take 45-28 which gets you 17, then you do 17+15 which gets you 32

What is x2 over 3 equal to

Answers

Answer:6

Step-by-step explanation:3 +3 like h get it

A customer went to a garden shop and bought some potting soil for $12.50 and 6 shrub. If the total bill was $71.00 how Mich did each shrub cost if they all cost the same? Write and solve equation. Show your work

Answers

71-12.50=6x71-12.50=58.5Therefore 6x=58.56x/6=x58.5/6=9.75So each shrub costs $9.75
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