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3 years ago

2x+y=7 for y neeedd help

Mathematics

1 answer:

masya89 [10]3 years ago

8 0

Answer:

y = -2x + 7

Step-by-step explanation:

Solve for y:

2x + y = 7

Add - 2x to both sides

2x + y - 2x = 7 - 2x
y = 7 - 2x

y = -2x + 7

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Due tomorrow plz help me

drek231 [11]

7y-3°=3y+13°
7y-3y= 13°+3°
4y= 16°
y=4°

Substitute y
7(4)-3°= 25°
3(4)+13=25°

180°-25°-25°=130°

2(2x+3)°+130°=180°
4x+136°=180°
4x=44°
x=11°

6 0

2 years ago

Help me to solve this question please faster thankyouu

luda_lava [24]

Answer:

Step-by-step explanation:

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2 years ago

What is 4.338 as a fraction when the 338 is repeating i give brianliest

Inga [223]

If x = 4.338338338…, then

1000x = 4338.338338338…

and subtracting x from this eliminate the trailing decimal.

1000x - x = 4338.338338338… - 4.338338338…

999x = 4334

x = 4334/999

6 0

2 years ago

Lexi picked 2 7/10 pounds of strawberries. That afternoon, Lexi’s sister ate 7/8 of the strawberries. How many pounds of strawbe

gavmur [86]

3 $\frac{3}{35}$ pound of strawberry

Step-by-step explanation:

Given parameters:

Pounds of strawberry picked by Lexi =2 $\frac{7}{10}$

Pounds of strawberry eaten by Lexi sister = $\frac{7}{8}$

Unknown:

Pound of strawberry Lexi's sister ate = ?

Solution:

This is a fraction word problem.

Let pound of strawberry eaten by Lexi's sister = K

We can establish that:

Pound of strawberry eaten by Lexi sister x K = Pound of strawberry picked by Lexi

Mathematically we have:

$\frac{7}{8}$ x K = 2 $\frac{7}{10}$

Learn more:

fractions brainly.com/question/1757979

#learnwithBrainly

K = $\frac{27 x 8}{10 x 7}$ = $\frac{216}{70}$

K = 3 $\frac{3}{35}$ pound of strawberry

8 0

3 years ago

For what value of the constant c does the above equation have x = 2 as the only solution?

Sladkaya [172]

$the \: answer \: is \: - 41$

5 0

2 years ago