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3 years ago

What are the approximate solutions of 5x^2-7x=1, rounded to the nearest hundredth?

Mathematics

1 answer:

anastassius [24]3 years ago

8 0

The answer for x is:
x= 0.7-0.83 = -0.13

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HELP URGENT!! EDGINUITY!!

Nataliya [291]

Hello from MrBillDoesMath!

Answer:

The first choice (2x + 4y >=3, 2x +4y <=3)

Discussion:

Suppose a variable M met these conditions: M >=3 and M <=3. The only way this can happen is that M = 3. In our case letting M = 2x + 4y, we find the inequalities give

2x + 4y = 3

which is the equation of a line. (The other choices do NOT include the boundary line because they use strict < or > signs.)

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The three most popular ice cream flavors are chocolate, strawberry, and vanilla, comprising 97% of the flavors sold at an ice cr

vesna_86 [32]

Using a system of equations, it is found that:

38% consumes vanilla.
14% consumes strawberry.
45% consumes chocolate.

In our system, we have that:

x is the percentage of vanilla.
y is the percentage of strawberry.
z is the percentage of chocolate.

Those 3 compromise 97% of the flavors, hence:

$x + y + z = 97$

Vanilla sells 10% more than twice strawberry, hence:

$x = 10 + 2y$

Chocolate sells 7% more than vanilla, hence:

$z = x + 7$

Since $x = 10 + 2y$

$z = 10 + 2y + 7$

$z = 2y + 17$

Replacing in the first equation, we can solve for y:

$x + y + z = 97$

$10 + 2y + y + 2y + 17 = 97$

$5y = 70$

$y = \frac{70}{5}$

$y = 14$

With y, we can solve for x and for z.

$x = 10 + 2y = 10 + 2(14) = 38$

$y = 2y + 17 = 2(14) + 17 = 45$

Hence:

38% consumes vanilla.
14% consumes strawberry.
45% consumes chocolate.

A similar problem is given at brainly.com/question/24778333

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