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geniusboy [140]
3 years ago
15

You have 4 black marbles, 3 green marbles and 5 red marbles in a bag. What

Mathematics
1 answer:
den301095 [7]3 years ago
8 0

Answer:

I believe it is 40% since there are 4 marbles within the bag!

Step-by-step explanation:

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I really need help quick!!:) please!! I will give brainliest to first right answer!!!
kykrilka [37]

Answer:

SA = <em>41.</em>

Step-by-step explanation:

Add up everything and you get <em>41 </em>as the SA.

8 0
3 years ago
What is 5 1/2 of 60%
EleoNora [17]
You mean 60%of 5 1/2? that makes more sense...


i would do it like this:

\frac{60}{100}* 5\frac{1}{2}

(60% is the same as \frac{60}{100}

5\frac{1}{2}=\frac{11}{2}

(so that there is no confusion, i've put it into an improper fraction

now we can multiply:
\frac{60}{100}* \frac{11}{2}=

\frac{6}{10}* \frac{11}{2}=

\frac{3}{5}* \frac{1}{2}=



\frac{3*11}{10}=

\frac{33}{10}=

which is 3.3.

so 60% of 5 and a half is 3.3.


6 0
3 years ago
There are five boys to every nine girls in an introductory engineering course .if there are 364 students enrolled in the course
Nadusha1986 [10]

Answer:

234

Step-by-step explanation:

So what we know is that

5x+9x= students

This equation is saying that for every 5 boys there are 9 girls

we can then plug in 364 for the number of students and add like terms

This means that 14x=364

this means that x=26

This means that there are 26 sets of 5 boys and 9 girls

this means that there are

130 boys

234 girls

3 0
3 years ago
Write an algebraic expression for julie runs three miles less than twice the number of miles,n that Hannah runs
oksano4ka [1.4K]
2n-3 I think that thats the answer
5 0
3 years ago
Which points satisfy this linear-quadratic system of equations? x + y = 1 y = 4x − 3 − x2
zhenek [66]
Y = 4x - 3 - x^2
now sub that in for y in the other equation
x + y = 1
x + 4x - 3 - x^2 = 1
-x^2 + 5x - 4 = 0
(-x + 1)(x - 4) = 0

-x + 1 = 0       y = 4x - 3 - x^2
-x = -1            y = 4(1) - 3 - 1^2
x = 1              y = 4 - 3 - 1 = 0

x - 4 = 0        y = 4x - 3 - x^2
x = 4             y = 4(4) - 3 - 4^2
                     y = 16 - 3 - 16
                      y = -3

points that satisfy this are : (1,0) and (4,-3)
8 0
3 years ago
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