3 years ago

Help me please..... :))

Mathematics

1 answer:

Vitek1552 [10]3 years ago

6 0

I hope this helps...

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A shade of green paint is made by mixing blue paint and yellow paint in the ratio of 4 to 3. How many pints of blue paint and ye

nexus9112 [7]

Answer:

$Blue = 12$

$Yellow = 9$

Step-by-step explanation:

Given

$Blue : Yellow = 4 : 3$

Required

Determine the number of pints of each to make 21 of green paints

First, calculate the total ratio.

$Total = 4 + 3$

$Total = 7$

The blue and the yellow pint can be represented individually as:

$Blue = \frac{4}{7} * Green$

$Yellow = \frac{3}{7} * Green$

Number of blue paint calculated last week is:

$Blue = \frac{4}{7} * 21$

$Blue = {4} * 3$

$Blue = 12$

$Yellow = \frac{3}{7} * Green$

$Yellow = \frac{3}{7} * 21$

$Yellow = {3} * 3$

$Yellow = 9$

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3 years ago

Tell whether the equation has one solution, infinite many solutions, or no solutions. -2k + 7 = 4k - 6k + 7

sattari [20]

Answer:

Infinite many solutions

Step-by-step explanation:

All real numbers

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3 years ago

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Is there a picture of the question?

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2 years ago

Researchers for a company that manufactures batteries want to test the hypothesis that the mean battery life of their new batter

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3 years ago

3/4x - 5y = 7<br> X = -4y + 12<br><br> solve by substitution ! show work pls !!

tamaranim1 [39]

When using substitution, we are imputing an equation in place of a variable to eliminate one of the variables in the equation so that we can solve for the remaining variable.

For this example, we will be plugging in (-4y+12) wherever "x" is in the other equation.

3/4 x -5y = 7
3/4(-4y+12) -5y =7
((3/4)(-4y))+((3/4)12)-5y=7
-3y+9-5y=7
-8y= -2
y=(1/4)

Now find "x" by plugging in the y-value.
x=(-4*(1/4))+12
x= -1 +12
x=11

any questions? feel free to comment below!

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3 years ago