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4 years ago

Solve the system using elimination. x – y = –5 3x + y = 1

2 answers:

8 0

Add the equations in order to solve for the first variable. Plug in this value in the other equations in order to solve for the remaining variables.

so your answer is (-1, 4)

hope this helps!

fomenos4 years ago

4 0

Answer:

(-1, 4)

Step-by-step explanation:

please mark as brainleist

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2. What is the mass of an object that is 10 m above the ground and has<br> 543 J of PE?

Musya8 [376]

PE = mgh
Plug in the values
543 J = m * 9.8 * 10
543 = m * 98
Divide both sides by 98
m = 5.54 kg

6 0

3 years ago

I need a help please <br> Answer for me all the question

irina1246 [14]

Answer:

see below

Step-by-step explanation:

The sum of the interior angles is 180

<1 + <2 + <4 = 180

<1 + 31+ <4 = 180

<1 + <4 = 180-31

<1 + <4 = 149

<2 + <3 = 180 because it forms a straight line

31 + <3 = 180

<3 = 180-31

<3 = 149

Setting theses equal (since they are both equal to 149)

<1 + <4 = <3

The exterior angle is equal to the sum of the opposite interior angles

4 0

3 years ago

The manufacturer's price for a cooler is $28.50 A camping store that buys the coolers sells them for $40.76 What is the approxim

Nutka1998 [239]

The percent of the increase is

$I=\frac{N-O}{O}\times100$

I is the increasing value

N is the new value

O is the original value

The price of the cooler is $28.50, then

O = 28.50

The selling price of the cooler is $40.76, then

N = 40.76

We will substitute them in the rule above to find I

$I=\frac{40.76-28.50}{28.50}\times100$

Let us calculate it

I = 43.0175 %

Round it to the nearest percent

I = 43%

The answer is D

6 0

2 years ago

Solve for x.<br><br> y=4+bx^2

kicyunya [14]

$y=4+bx^2$

$bx^2 = y - 4$

$x^2 = \dfrac{y-4}{b}$

$x = \pm \sqrt{ \dfrac{y-4}{b} }$

3 0

4 years ago

What is the name of this solid figure?

ohaa [14]

Answer:

what solid figure do u have a picture lol?

Step-by-step explanation:

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4 years ago