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MaRussiya [10]
3 years ago
8

4(10x+6)--10(9x+9)please show your work​

Mathematics
1 answer:
Lynna [10]3 years ago
3 0

Answer:

x = -1.32

Step-by-step explanation:

I expect '--' means equals to '=' in your question

4(10x+6)--10(9x+9)

4(10x+6)=10(9x+9)

40x +24 = 90x +90

40x - 90x = 90 - 24

-50x = 66

x = -66/50

x = -1.32

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There are a total of 62 students in the robotics club and the science club. The science club has 8 fewer students than the robot
Lesechka [4]
To find this answer you simply subtract eight from sixty-two, which gives you....
54! 
 
So there are 54 student in the science club!

Hope this helps! :)
6 0
3 years ago
The temperature falls from 0 degrees to Negative 12 and one-fourth degrees in 3 and one-half hours. Which expression finds the c
ANEK [815]

Answer:

The expression used to find the change in temperature per hour is Algebraic expression

Thus per hour; the temperature falls at the rate of - 3\dfrac{1}{2}^0

Step-by-step explanation:

A temperature falls from 0 to  - 12\dfrac{1}{4}     in     3\dfrac{1}{2} \ hours

Which expression finds the change in temperature per hour.

From the above given information;

The initial temperature is 0

The final temperature is  - 12\dfrac{1}{4}  

The change in temperature is \Delta T = T_2  -  T_1

\Delta  T = -12\dfrac{1}{4} -0

\Delta T = -12.25

Thus;

-12.25 ° = 3.5 hours

To find the change in x°   per hour; we have;

x°            = 1 hour

The expression used to find the change in temperature per hour is Algebraic expression

From above if we cross multiply ; we have;

(- 12.25° × 1 hour) = (x° × 3.5 hour)

Divide both sides by 3.5 hours; we have:

\dfrac{-12.25^0*1 }{3.5}=\dfrac{ x^0 *3.5}{3.5}

x° =  - 3.5

x° = - 3\dfrac{1}{2}

Thus per hour; the temperature falls at the rate of - 3\dfrac{1}{2}^0

8 0
3 years ago
Plsss help me with this, Brainlist!!!
irina [24]

Answer:

1. -3

2. 12

youre welcome

4 0
3 years ago
Is this rational or irrational I really need help ASAP! Will mark brainlist.
vichka [17]

Answer: Rational

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I hope this is good enough:

4 0
3 years ago
Marisa has 37 jelly beans. She eats some and has 16 left. How many jelly beans did she eat?
tiny-mole [99]
She ate 21 jelly beans
7 0
3 years ago
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