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3 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPASAPPPPP

Mathematics

2 answers:

melisa1 [442]3 years ago

8 0

Answer:

y= -2/3x-4

Step-by-step explanation:

Alborosie3 years ago

3 0

Answer:

y=2/3x-4

Step-by-step explanation:

y=mx+b is slope intercept form so the y intercept is -4, which is b in the equation. so y=mx-4 and then m is the slope which is 2/3 so

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Yul has lunch at a restaurant. The bill is $14.50 and the sales tax amount is 5%. If he wants to leave a 20% tip after the sales

jek_recluse [69]

Answer:

The tip will be $3.05.

The bill will cost $18.28 with the tip and tax.

Step-by-step explanation:

14.50 + 5% (or 0.73) = 15.23

15.23 + 20% (or 3.05) = 18.28

5 0

3 years ago

What is the result of adding these two equation?<br> 5x-9y=1<br> -7x+2y=-5

SCORPION-xisa [38]

The result of adding the given equations is 2x+7y=4.

Step-by-step explanation:

Given equations are;

5x-9y=1 Eqn 1

-7x+2y=-5 Eqn 2

Adding Eqn 1 and 2

$(5x-9y)+(-7x+2y)=1+(-5)\\5x-9y-7x+2y=1-5$

Arranging alike terms;

$5x-7x-9y+2y=-4\\-2x-7y=-4$

Dividing each term by -1

$\frac{-2x}{-1}+\frac{-7y}{-1}=\frac{-4}{-1}\\2x+7y=4$

The result of adding the given equations is 2x+7y=4.

Keywords: addition, linear equations

Learn more about addition at:

#LearnwithBrainly

4 0

3 years ago

A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 50 women ove

Harman [31]

Answer:

Option A is right.

Step-by-step explanation:

Given that a new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 50 women over the age of 50 used the new cream for 6 months. Of those 50 women, 44 of them reported skin improvement(as judged by a dermatologist)

$H_0: p=0.40\\H_a: p >0.40$