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PilotLPTM [1.2K]
2 years ago
15

How do you solve y = 45x + 100

Mathematics
1 answer:
galina1969 [7]2 years ago
3 0

Answer:

x=

1

45

y+

−20

9

Step-by-step explanation:

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A chef plans to mix 100% vinegar with Italian dressing. The Italian dressing contains 12%
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Answer:

Amount of  vinegar. 100% : 20 milliliters

Amount of  Italian dressing: 140 milliliters

Step-by-step explanation:

Let's call A the amount of  vinegar. 100%

Let's call B the amount of  Italian dressing . 12% vinegar

The resulting mixture should have 23%  vinegar, and 160 milliliters.

Then we know that the total amount of mixture will be:

A + B = 160

Then the total amount of pure antifreeze in the mixture will be:

A + 0.12B = 0.23 * 160

A + 0.12B = 36.8

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -1 and add it to the second equation:

-A -B = -160

-A -B = -160

               +

A + 0.12B = 36.8

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

-0.88B = -123.2

B = \frac{-123.2}{-0.88}

B = 140\ milliliters

We substitute the value of B into one of the two equations and solve for A.

A + 140 = 160

A = 20\ milliliters

7 0
3 years ago
Factor this trinomial completely. 2x2 + 6x + 4 O
svp [43]

Answer:

B.  2(x+2)(x+1)

Step-by-step explanation:

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2 years ago
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Answer:

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Step-by-step explanation:

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7 0
2 years ago
the function h(t)=-16t^2+110t+72 models the height h, in feet, of an object above ground t seconds after being launched straight
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Answer:

The initial height of an object above ground before being launched straight up in the air

Step-by-step explanation:

we have

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we know that

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The y-intercept is the value of y when the value of x is equal to zero

In this problem

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The initial height of an object above ground before being launched straight up in the air

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2 years ago
What is the value of 4 (3) - 17​
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Answer:

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Step-by-step explanation:

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2 years ago
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