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Ostrovityanka [42]
2 years ago
9

A group of students each are given a certain number of green and yellow marbles​

Mathematics
1 answer:
allochka39001 [22]2 years ago
6 0

Answer: A,d,f

Step-by-step explanation:

Because you have to simplify the ratios of the colors.

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Pls plsss help with math, it’s easyyy!! explanation needed!!
zimovet [89]

Answer:

C. x = -12 and x = 2

Step-by-step explanation:

-x²-10x+24=0     Original equation

x²+10x-24=0      Divide everything by -1

(x+12)(x-2)=0      Factor it out

x=-12,2               Solve so that the inside of the parentheses equals 0

7 0
3 years ago
Read 2 more answers
Help please!! How do I solve this
egoroff_w [7]
This is an exponential equation. We will solve in the following way. I do not have special symbols, functions and factors, so I work in this way
 2 on (2x) - 5 2 on x + 4=0 =>. (2 on x)2 - 5 2 on x + 4=0  We will replace expression ( 2 on x) with variable t => 2 on x=t  =. t2-5t+4=0 => This is quadratic equation and I solve this in the folowing way => t2-4t-t+4=0 =>     t(t-4) - (t-4)=0 => (t-4) (t-1)=0 => we conclude t-4=0 or t-1=0 => t'=4 and t"=1 now we will return t' => 2 on x' = 4 => 2 on x' = 2 on 2 => x'=2 we do the same with t" => 2 on x" = 1 => 2 on x' = 2 on 0 => x" = 0 ( we know that every number on 0 gives 1). Check 1: 2 on (2*2)-5*2 on 2 +4=0 =>                   2 on 4 - 5 * 4+4=0 => 16-20+4=0 =. 0=0 Identity proving solution. 
Check 2:   2 on (2*0) - 5* 2 on 0 + 4=0 => 2 on 0 - 5 * 1 + 4=0 => 
1-5+4=0 => 0=0  Identity provin solution.
5 0
3 years ago
What is the area of the rectangle? A)40 units B)45 C)50 D)55
lesantik [10]

Answer:

i think the answer is c) 50

Step-by-step explanation:

6 0
3 years ago
2/3 of a cup of batter can make 5/6 of a batch of pancakes. How many cups of water are needed to make one batch of pancakes?
emmainna [20.7K]

Answer:

1 11/12 cups of water

8 0
2 years ago
The pyramid of Khufu in Egypt is estimated that the height of Khufu was 147 meters at its completion. About how many feet high w
abruzzese [7]

Answer:

147 meters = ‪482 Feet

Step-by-step explanation:

simple conversion

6 0
3 years ago
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