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2 years ago

WILL NAME BRAINLIST PLEASE

Mathematics

1 answer:

algol132 years ago

3 0

Answer:

x = -4y

Hope that helps! :)

-Aphrodite

Step-by-step explanation:

You might be interested in

Which inequality will have a solid boundary line and a shaded region above its graph? x − y ≥ 3 2x − 3y ≤ 3 3y − x < 2 2x + y

LenKa [72]

x − y ≥ 3 ... > stands for above on a graph, and the line under it _ stands for shaded.

7 0

3 years ago

What is the value of a in the equation 3a + b = 54, when b = 9?

nasty-shy [4]

In order to do this you have to substitute b with 9 and get 3a+9=54, now subtract 9 from both sides to leave a by itself and get 3a=45, now divide 3 in both sides to leave a by itself and get a=15

Hope this helps

4 0

3 years ago

Shopping at clothing world, jenna buys her children four shirts and three pairs of pants for 124.25. She returns the next day an

Aleksandr-060686 [28]

The cost of one shirt is 12.50 and cost of one pair of jeans is 24.75

Step-by-step explanation:

Let,

Cost of one shirt = x

Cost of pair of jeans = y

According to given statement;

4x+3y=124.25 Eqn 1

3x+5y=161.25 Eqn 2

Multiplying Eqn 1 by 3

$3(4x+3y=124.25)\\12x+9y=372.75\ \ \ Eqn\ 3$

Multiplying Eqn 2 by 4

$4(3x+5y=161.25)\\12x+20y=645\ \ \ Eqn\ 4$

Subtracting Eqn 3 from Eqn 4

$(12x+20y)-(12x+9y)=645-372.75\\12x+20y-12x-9y=272.25\\11y=272.25$

Dividing both sides by 11

$\frac{11y}{11}=\frac{272.25}{11}\\y=24.75$

Putting 24.75 in Eqn 1

$4x+3(24.75)=124.25\\4x+74.25=124.25\\4x=124.25-74.25\\4x=50$

Dividing both sides by 4

$\frac{4x}{4}=\frac{50}{4}\\x=12.50$

The cost of one shirt is 12.50 and cost of one pair of jeans is 24.75

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

8 0

2 years ago

the dimensions of a porch are 16 feet long by 12 feet wide use the scale 1 inch=4 feet what is the width and length in inches

lisabon 2012 [21]

Hi there!

Since the scale is 1 in = 4 ft, we divide both the length and width by 4 to get the new length and width with the scale factor applied.

16 / 4 = 4
12 / 4 = 3

So, the
length = 4
width = 3

Hope this helps!

7 0

3 years ago

The Invisible Gorilla experiment was repeated numerous times. In one experiment, 25 students watching the video, only 9 noticed

Dahasolnce [82]

Answer:

0.64 is the proportion of students in the population who failed to notice the woman in the gorilla suit

Step-by-step explanation:

We are given the following in the question:

Total number of students, n = 25

Number of student who noticed woman in gorilla suit = 9

Number of student who failed to notice woman in gorilla suit, x = 25 - 9 = 16

We have to find the proportion of the students in the population who failed to notice the woman in the gorilla suit.

Formula:

$p = \dfrac{x}{n} = \dfrac{16}{25} =0.64$

0.64 is the proportion of students in the population who failed to notice the woman in the gorilla suit

3 0

3 years ago