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Lunna [17]
2 years ago
5

3/5 × -4/7 + 4/35 - 3/10 × 4/7

Mathematics
2 answers:
Annette [7]2 years ago
5 0

Answer:

I think its -2/5 but not sure

Step-by-step explanation:

iVinArrow [24]2 years ago
5 0

Answer:

-0.4

بالاعتماد على الاولويات

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Mr. Kohl has a breaker containing n milliliters of solution to distribute to the students in his chemistry class. If he gives ea
77julia77 [94]

Answer:

There were 26 students in his class and the teacher had 83 ml of the solution.

Step-by-step explanation:

Mr. Kohl has a "x" amount of solution, if he divides it by the number of students "n" he'll give each student 3 milliliters  and have a left over of 5 milliliters. If the amount of solution Mr. Kohl had was "x + 21" then he'd be able to give each student 4 milliliters of the solution. From these informations we have:

x = 3*n + 5

(x + 21)/n = 4

x + 21 = 4*n

x = 4*n - 21

Now that we have two equations and two variables we can solve the system of equations, as seen bellow:

3*n + 5 = 4*n - 21

3*n - 4*n = -21 - 5

-n = -26

n = 26

x = 4*26 - 21 = 83 ml

There were 26 students in his class and the teacher had 83 ml of the solution.

3 0
2 years ago
Can you help me find a formula to solve this problem?
olasank [31]
Y=mx+b,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
6 0
3 years ago
Read 2 more answers
(2-3a)(8+5a) please help me
IceJOKER [234]

Answer:

-15a² -14a+16

Step-by-step explanation:

<h2>(2-3a)(8+5a)</h2>

2×8=16

2×5a=10a

-3a×8=-24a

-3a×5a=-15a²

16+10a-24a-15a² = -15a² -14a+16

7 0
2 years ago
Two thirds of the families in smithville own their own homes. The total number of home owning families there is 480. How many fa
Leviafan [203]
X- the total number of families in Smithville<span>.
(2/3)x  - the number of home owning families.
At the same time, </span> the number of home owning families is 480.

(2/3)x=480
x=480*3/2=720.

720 
<span>families live in Smithville.</span>
8 0
3 years ago
This it to the online school kids
MA_775_DIABLO [31]

Answer:

it averages about 8AM to 11Am so 3 hours

Step-by-step explanation:

3 0
3 years ago
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