3 years ago

Help pls giving brainliest

Mathematics

1 answer:

nydimaria [60]3 years ago

4 0

Answer: False i think

Step-by-step explanation:

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If x = 10 when y = 320 then what is y then x is 1/2?

miv72 [106K]

Answer:

y = 16

Step-by-step explanation:

if x =10 then y =320

that means y= 32x

so if x = 1/2

y = 32*1/2

y= 16

4 0

3 years ago

Some of answers use 3,14 as a substitute for pi.

Katena32 [7]

Personally i think that if you use the pi symbol it would be more accurate because on a calculator there is an pi symbol √ which is the same it will give you an answer closer to an whole number.

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3 years ago

SOLVING EACH SYSTEM BY ELIMINATION x+3y=5 x=-6y+14 HELP

nata0808 [166]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=-4,\:y=3$

Step-by-step explanation:

Given the system of the equations

$x+3y=5;\:x=-6y+14$

solving by elimination method

$\begin{bmatrix}x+3y=5\\ x=-6y+14\end{bmatrix}$

$\mathrm{Arrange\:equation\:variables\:for\:elimination}$

$\begin{bmatrix}x+3y=5\\ x+6y=14\end{bmatrix}$

$x+6y=14$

$-$

$\underline{x+3y=5}$

$3y=9$

$\begin{bmatrix}x+3y=5\\ 3y=9\end{bmatrix}$

solve $3y=9$ for $y$ :

$3y=9$

$\frac{3y}{3}=\frac{9}{3}$

$y=3$

$\mathrm{For\:}x+3y=5\mathrm{\:plug\:in\:}y=3$

Solve $x+3\cdot \:3=5$ for x:

$x+3\cdot \:3=5$

$x+9=5$

$x=-4$

Therefore,

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=-4,\:y=3$

6 0

3 years ago

A band must pay a $2500 entrance fee, It will split the cost between its 25 members. How much will each member pay?

dsp73

Answer $100 each

Step-by-step explanation:

2500/25

4 0

3 years ago

Read 2 more answers

What's the equivalent of the expression -2 (-x +5y ) + 3 (2x - 6y)?

Anastasy [175]

Answer:

Step-by-step explanation:

-2 (-x +5y ) + 3 (2x - 6y)

Opening bracket

= 2x - 10y + 6x - 18y

= 8x - 28y

= 4(2x - 7y)

6 0

3 years ago