All categories

3 years ago

Can someone plz help?

Mathematics

2 answers:

sattari [20]3 years ago

6 0

Answer:

Division property of equality

Step-by-step explanation:

What she did was ;

$\frac{-3x}{-3} =\frac{3}{-3} \\\\x =-1$

Aloiza [94]3 years ago

4 0

Division Property of Equality

It is division property of equality because Bianca divides both sides by -3.

You might be interested in

Justin and Eric came home from school on Friday and found a freshly baked cherry pie. Justin ate 2/3 of a pie and Eric ate 1/4 o

Verdich [7]

Answer:

1/12

Step-by-step explanation:

3 0

2 years ago

Robbin is using the recipe to make chicken noodle soup. He plans to make 6 batches of the soup. He has 2/3 teaspoon of black pep

weqwewe [10]

That is 4 teaspoons in all

5 0

3 years ago

Lee watches TV for 3 hours per day. During that time, the TV consumes 150 watts per hour. Electricity costs (10 cents)/(1 kilowa

miss Akunina [59]

Answer:

135 cent

Step-by-step explanation:

Given that:

Cost of electricity = 10cent / 1 kilowatt hour

TV consumption = 150watt per hour

Duration = 3 hours

Cost of operating for 30 days

Total energy usage per day: (150 watt/hr) * 3 hours = 450 watts = 450/1000 = 0.45kW

Total energy for 30 days = 0.45 * 30 = 13.5 Kilowatt

Cost per kilowatt = 10cent

13.5 kw = 13.5 * 10 cent = 135 cent

135 cent = $1.35

7 0

3 years ago

cupoosta [38]

Because it is not spent

3 0

3 years ago

5 ≤ - 3x- 3 ≤ 10 solve the inequality for x

kaheart [24]

Answer:

<h3> $- \frac{8}{3} \geqslant x \geqslant - \frac{13}{3}$ </h3>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

inequality
solving inequality
PEMDAS

<h3>given:</h3>

5 ≤ - 3x- 3 ≤ 10

<h3>to solve:</h3>

<h3>let's solve:</h3>

few notes about inequality

the direction of the inequality doesn't change if you

Add (or subtract) a number from both sides
Multiply (or divide) both sides by a positive number
Simplify a side

the direction of the inequality does change

if you

Multiply (or divide) both sides by a negative number
Swapping left and right hand sides

$step - 1 : difine$

$5 \leqslant - 3x - 3 \leqslant 10$

$step - 2 : \\ add \: 3 \: in \: each \: sides$

$5 + 3 \leqslant - 3x - 3 + 3 \leqslant 10 + 3$

$8 \leqslant - 3x \leqslant 13$

$step - 3 : \\ divide \: - 3\: from \: each \: sides \: \\ and \: swap \: the \: inequalily$

$\therefore - \frac{8}{3} \geqslant x \geqslant - \frac{13}{3}$

5 0

3 years ago

Can someone plz help?​

Can someone plz help?