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3 years ago

How many solutions does 7(2x-2)=7x+14 have?

Mathematics

2 answers:

Morgarella [4.7K]3 years ago

7 0

It only has one solution.

lyudmila [28]3 years ago

3 0

it has only one solution

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mestny [16]

So we know that Kenzi 15 bracelets a week. And the question is asking how long it takes to make 105 bracelets. So we divide the amount we want (105) by the amount he can make per week (15):

105 / 15 = 7

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4 years ago

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3 years ago

Find the point 3x - 7x₂ =5. of the lines x, - 5x2 = 1 and of intersection

tia_tia [17]

Answer:

( $\frac{9}{4},\frac{1}{4})$

Step-by-step explanation:

We are given that two lines

$x_1-7x_2=5$ and $x_1-5x_2=1$

We have to find the intersection point of two lines

Let $3x_1-7x_2=5$ (equation 1)

$x_1-5x_2=1$ (Equation 2)

Multiply equation 2 by 3 then subtract from equation 1

$-7x_2+15x_2=5-3$

$8x_2=2$

$x_2=\frac{2}{8}=\frac{1}{4}$

Substitute $x_2=\frac{1}{4}$ in the equation 1

Then, we get

$3x_1-7\frac{1}{4}=5$

$3x_1-\frac{7}{4}=5$

$3x_1=5+\frac{7}{4}=\frac{20+7}{4}=\frac{27}{4}$

$x_1=\frac{27}{4\times 3}=\frac{9}{4}$

Hence, the intersection point of two given lines is ( $\frac{9}{4},\frac{1}{4})$

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3 years ago

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Anika [276]

Answer:

Step-by-step explanation:

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9 is a function

10 is a function

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3 years ago

GIVING BRAINLEST! What is the location of this point? y-axis x-axis 5

NemiM [27]

Answer:

0,0

Step-by-step explanation:

because it is in the centre of the graph

8 0

3 years ago