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malfutka [58]
2 years ago
7

Halp u-u

Mathematics
2 answers:
FromTheMoon [43]2 years ago
8 0
I don’t know the answer I just need points
kumpel [21]2 years ago
6 0

Answer:

This is an easy but also hard one lol.

Step-by-step explanation:

If the 5 students could do it in 2 hours then it would take one person 10 hours. 10/x=y.

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HELP FAST select the correct answer
Aleks04 [339]

Answer:

B

Step-by-step explanation:

8 0
2 years ago
What is t+8+3t because I’m strugling with it
Tresset [83]

Answer:

t + 8 + 3t

group like terms

t + 3t + 8

4t + 8

4 0
3 years ago
Unit 6 homework 2 need help
kodGreya [7K]

∆PQR and ∆SQT are similar, so corresponding sides occur in fixed ratios with one another. This means

SQ / PQ = ST / PR

Solve for x :

8 / ((x + 5) + 8) = (x - 9) / 21

8 / (x + 13) = (x - 9) / 21

168 = (x - 9) (x + 13)

168 = x² + 4x - 117

x² + 4x - 285 = 0

(x + 19) (x - 15) = 0

⇒   x = -19   or   x = 15

But x can't be smaller than 9, otherwise ST = x - 9 would be a negative length. So x = 15.

8 0
2 years ago
How can u solve this by system of equations by elimination 4x-5y=6;2x+5y=-28
gayaneshka [121]

Answer:

x=17/3, y=10/3. (17/3, 10/3).

Step-by-step explanation:

4x-5y=6

2x+5y=-28

-----------------

4x-5y=6

-2(2x+5y)=-2(-28)

--------------------------

4x-5y=6

-4x-10y=56

------------------

-15y=-50

15y=50

y=50/15

y=10/3

4x-5(10/3)=6

4x-50/3=6

4x=6+50/3

4x=18/3+50/3

4x=68/3

x=(68/3)/4

x=(68/3)(1/4)=68/12=17/3

4 0
2 years ago
How many solutions are there to the equation 5x+48+7x.=12(x+4)
ELEN [110]
5x+48+7x=12(x+4)\\\\12x+48=12x+48\\\\L=R\\\\There\ are\ infinitly\ many\ solutions.
5 0
2 years ago
Read 2 more answers
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