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Murljashka [212]
3 years ago
13

Please help me, thanks

Mathematics
1 answer:
Afina-wow [57]3 years ago
5 0

Answer:

Put those two equations together and solve

Step-by-step explanation:

7x-15=9x+5

The nose for means both angles are equal, so you just make them equal to each other and solve for x

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Please help please please
Anestetic [448]

Answer:

100

Step-by-step explanation:

5x2=10x10=100

6 0
3 years ago
Read 2 more answers
A drainage basin bordering the sea has an area of 7500 km2 . The average precipitation for this drainage basin is 900 mm year-1
Alexxx [7]

Answer with Step-by-step explanation:

The basic water balance dictates that "Amount of water flowing into the basin should be equal to the amount of water flowing out of it".

Mathematically

Water_{in}=Water_{out}\\\\P=E+Q+I

where

P = precipitation

I = Infiltration losses in the basin

E = Evapotranspiration

Q = is outflow from the basin

Applying the given values we get

900=E+\frac{22.5\times 10^{8}}{7500\times 10^{6}}\times 1000+100\\\\900=E+300+100

Part b)

From the above equation we get

E=900-400=500mm/year

The evaporation in cubic meters per year is

E'=0.5\times 7500\times 10^{6}=3750\times 10^{6}m^3/year

7 0
4 years ago
Whats the answer to 1+3x=-2(x+7)
Hitman42 [59]

Answer:

x = -3

Step-by-step explanation:

1+3x=-2(x+7)

Distribute

1+3x = -2x-14

Add 2x to each side

1+3x+2x = -2x+2x-14

1+5x = -14

Subtract 1 from each side

1-1+5x= -14-1

5x = -15

Divide each side by 5

5x/5 = -15/5

x = -3

6 0
4 years ago
Read 2 more answers
Who is right and wrong and why?
Serggg [28]
Ben is right, you must add 25 not subtract it
5 0
3 years ago
Read 2 more answers
A triangle has an area of 18ft squared. List all the possible positive integers that could represent its base and height. Use se
svet-max [94.6K]

Answer:

1ft x 36ft

2ft x 18ft

3ft x 12ft

4ft x 9ft

6ft x 6ft

Step-by-step explanation:

A triangle is a three-sided polygon with three edges and three vertices. the sum of angles in a triangle is 180 degrees

Area of a triangle = 1/2 x base x height

If area is 18ft², then the dimensions of base x height = 18 x 2 = 36

all the possible positive integers that could represent its base and height can be determined be known by determining the factors of 36

factors of 36 = 1, 2, 3, 4, 6, 9, 12, 18, and 36

Possible dimensions of base and heights are :

1ft x 36ft

2ft x 18ft

3ft x 12ft

4ft x 9ft

6ft x 6ft

7 0
3 years ago
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