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3 years ago

-9(6+u)-2u= -10 HELPPPP

Mathematics

2 answers:

Fed [463]3 years ago

8 0

Answer:u= -4

Step-by-step explanation:

IgorC [24]3 years ago

8 0

The answer is u= -4. Glad I could help!

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weeeeeb [17]

Answer:

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3 years ago

Find each product or quotient. Express your answer in exponential form. (-x^5y^7)/y^3

Alenkasestr [34]

Remember some laws
(ab)/c=a(b/c)
and
$\frac{x^m}{x^n}=x^{m-n}$
so

$\frac{-x^5y^7}{y^3} =(-x^5)( \frac{y^7}{y^3})=(-x^5)(y^{7-3})=-x^5y^4$

4 0

3 years ago

Help if you can. Thank You.

Anna35 [415]

Answer:

$Given:-$ Δ ABC

$AC~is~exteuded ~through ~C~to ~D$

$BC~is ~drawn ~to ~AC$

$Using ~Triangles~Exterior~angle~theorm,$

1) =∠3+∠4 and ∠4=∠5+∠6

∠7=∠3+∠2

So, only D) m∠7=m∠3+m∠2 is correct

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

hope it helps..

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8 0

3 years ago

If a=b, then a-6=b-6

Dima020 [189]

Answer:

Step-by-step explanation:

it subtracts equally on each side

8 0

3 years ago

Mr. T's Tea store has two kinds of tea. Tea A costs $9 per pound and Tea B cost $6 per pound. How many pounds of each should be

harina [27]

Answer:

y=447.3 pounds

x= 297.3 pounds

Step-by-step explanation:

Step one:

given data

Tea A costs $9 per pound and

Tea B cost $6 per pound.

let the number of pounds of Tea A be x

and for Tea B be y pounds

The total cost of the mixture = $8 per pound

hence

9x+6y=8---------1

The total weight of the mixture

150 pounds

x+y=150-----------2

Step two:

9x+6y=8---------1

x+y=150---------2

from eqn 2 x=150-y

put x= 150-y in eqn 1

9(150-y)+6y=8---------1

1350-9y+6y=8

1350-8=9y-6y

1342=3y

divide both sides by 3

y= 1342/3

y=447.3 pounds

put y= 447.3 in eqn 2

x+447.3= 150

x= 150-446=7.3

x= -297.3

x= 297.3 pounds

3 0

3 years ago