All categories

2 years ago

-3x-7 ≤11 solve, please

Mathematics

1 answer:

Rom4ik [11]2 years ago

7 0

Answer:

x ≥ -6

Step-by-step explanation:

-3x-7 ≤ 11

-3x-7+7 ≤ 11+7

-3x ≤ 18

(-3x)(1) ≤ 18(-1)

3x ≤ -183x/3 ≤ -18/3

You might be interested in

Can u help me with 2&4

Anvisha [2.4K]

2.

1, -3.8
2, -3.6
3, -3.4
4, -3.2
5, -3

(In each row, the first number is x and the second number is the y)

4 0

3 years ago

What are the next 3 numbers in this sequence? 1,1,2,4,7,13,24,44

Bogdan [553]

81,149, 274.... adding three numbers from the last would help you

like if you take 7 = 4 + 2 +1

or 13 = 7 + 4 +2

similarly 44+24+13 = 81
81+44 +24 = 149
149 + 81 +44 = 274

hope you get it!

6 0

3 years ago

8. How much energy does a 12 V battery in your car use to move 2.5 C through the electrical

I am Lyosha [343]

The energy required is 30 watts second.

In order to accomplish work and to produce heat and light, energy must be transferred to a body or to a physical system. Energy is the quantitative attribute that does this. Energy is a preserved resource; according to the rule of conservation of energy, energy can only be transformed from one form to another and cannot be created or eliminated.

The voltage of a battery is 12 V and;

The charge is 2.5C.

Now, energy can be defined as the product of voltage and charge.

Therefore,

E = V × C

E = 12 × 2.5

E = 30 watt second

Hence, the energy needed by the 12 V battery to move 2.5 C through the electrical circuit is 30 watts second.

Learn more about energy here:

brainly.com/question/13881533

#SPJ9

6 0

1 year ago

Which numerical expression could represent this phrase?

Agata [3.3K]

Answer:

Step-by-step explanation:

63 divided by 9 times 10 minus 2

7 0

3 years ago

Jake is using a horse trailer to take his horses to his new ranch. 1 Horse= 1,200 lb Trailer= 2,700 lb Jake's truck can tow a ma

Kitty [74]

Answer:

Jack can take only 1 horse on his trailer to be towed by the truck without going over the maximum weight the truck.

Step-by-step explanation:

Given:

Weight of 1 horse = 1,200 lb

Weight of trailer = 2,700 lb

Jacks'truck can tow a maximum of 5000 pounds.

To find the maximum number of horses Jack can take in his trailer without going over the maximum weight his truck can tow.

Solution:

Let the maximum number of horses that Jack can take be = $x$

Using unitary method to find weight of $x$ horses.

If 1 horse weights = 1,200 lb

Then $x$ horses will weight in lbs = $1,200\times x = 1,200x$

Total weight of horses and trailer in lbs = $1200x+2700$

Since the maximum weight the truck can tow = 5,000 lb, so the inequality can be given as:

$1200x+2700\leq5000$

Subtracting both sides by 2700.

$1200x+2700-2700\leq5000-2700$

$1200x\leq2300$

Dividing both sides by 1200.

$\frac{1200x}{1200}\leq\frac{2300}{1200}$

$x\leq1.91$

From the inequality solution for $x$ , we can conclude that Jack can take only 1 horse on his trailer to be towed by the truck without going over the maximum weight the truck.

3 0

3 years ago