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3 years ago

If y varies directly as x and y =4 when x=-4, what is y when x=-7?

Mathematics

1 answer:

Inga [223]3 years ago

6 0

Answer:

<em>good luck, i hope this helps :)</em>

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a dinner for 4 people would cost $62.50. If James wants to leave a 20% tip onto the cost of the meal, how much would each person

VLD [36.1K]

Assuming they will all pay equaliy, including the tip,
100=orignal
100+20=120

120% of 62.50
ssimlify it
120/4=30
30% of 62.50=0.3*62.5=18.75

each person pays $18.75

7 0

3 years ago

Graph the linear equation find three points that solves the equation 2y=5x+11

Julli [10]

Answer:

<h3>Attachment</h3>

Step-by-step explanation:

Convert to the slope-intercept form (<em>y = mx + b</em>):

$2y=5x+11$ <em>divide both sides by 2</em>

$\dfrac{2y}{2}=\dfrac{5x}{2}+\dfrac{11}{2}\\\\y=\dfrac{5}{2}x+\dfrac{11}{2}$

We choose any three x values and calculate the y value:

for x = -1

$y=\dfrac{5}{2}(-1)+\dfrac{11}{2}=-\dfrac{5}{2}+\dfrac{11}{2}=\dfrac{6}{2}=3\to A(-1,\ 3)$

for x = 1

$y=\dfrac{5}{2}(1)+\dfrac{11}{2}=\dfrac{5}{2}+\dfrac{11}{2}=\dfrac{16}{2}=8\to B(1,\ 8)$

for x = -3

$y=\dfrac{5}{2}(-3)+\dfrac{11}{2}=-\dfrac{15}{2}+\dfrac{11}{2}=-\dfrac{4}{2}=-2\to C(-3,\ -2)$

Mark the points on the coordinate plane and draw a line through the given points.

6 0

3 years ago

Yoshua borrowed $8,000 from his credit union over 9 months. He pays a simple interest of

ollegr [7]

Answer:

simple prt. $720

Step-by-step explanation:

4 0

3 years ago

Helppp meeeeeeee plsssssss you got till nine

damaskus [11]

Answer:

3/20 of the cover page is text about endangered species.

Step-by-step explanation:

We know that 3/8th of the page is text, and 2/5ths of that text is about endangered species.

So all we have to do is find out how much 2/5ths of 3/8ths are, which can be done simply via fraction multiplication.

3/8 * 2/5 = ?

For multiplying fractions, we multiply the top parts together, and then the bottom parts together. So 3/ 8 * 2/5 would be equal to (3*2) / (8*5). This gives us 6 / 40 which can be simplified to 3/20.

So 3/20ths of the cover page is about endangered animals.

3 0

3 years ago

PLEASE HELP ASAP TYSM

romanna [79]

Answer:

Step-by-step explanation:

8 0

2 years ago