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Leviafan [203]
2 years ago
7

13x+y=4 plz help i cant get it right lol

Mathematics
2 answers:
kati45 [8]2 years ago
7 0

Answer:

4

__

13

Step-by-step explanation:

look up top for explanation

Gala2k [10]2 years ago
5 0

Answer:

Solve for Y:

Subtract 13x

from both sides of the equation.

y=4−13x

Solve for X:

Move all terms that don't contain x

to the right side and solve.

x=4/13−y/13

Step-by-step explanation:

i think?

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All together, 3 people have 120 coins. mark has 3 times as many as joel, and joel has 1/2 as many as sandra. how many coins does
oksano4ka [1.4K]
Joel = j, Mark = m, Sandra = s
j + m + s = 120
m = 3j
j = 1/2 s --> s = 2j
plug in (substitute) each letter to make it in terms of only j: j + m + s = 120
j + 3j + 2j = 120
6j = 120
6j/6 = 120/6
j = 20
now plug in for the j & s equation:
s = 2j = 2(20) = 40
Therefore Sandra has 40 coins!
7 0
3 years ago
40% of the student in a class are female. if there are 10 females in the class, how many males are there in the class
Neporo4naja [7]

Answer:

this shouldn't be that hard, if 10 is equal to 40% then you can tell that there are 15 men.

Final answer: 15

6 0
3 years ago
Read 2 more answers
A) Work out the value of (square root of 5)^2 x (square root of 3)^2?
gulaghasi [49]

Answer:

15

Step-by-step explanation:

Square root of 5=√5

Square of the square root=(√5)^2

=5

Square root of 3=√3

Square of the square root=(√3)^2

=3

So (square root of 5)^2×(square root of 3)^2

5×3

15

Therefore the final answer is 15

6 0
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Which expression is equivalent to 3d - d + 4 + d
Sveta_85 [38]

Answer:

b

Step-by-step explanation:

3 0
2 years ago
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grin007 [14]
First add 1/2 and 3/4 together by making 1/2, 2/4 then add 3/4 to get 5/4 or 1 1/4 then 10 - 1 1/4 is 8 3/4 which is the answer
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