All categories

4 years ago

Solve the inequality x+1 > -5(7-2x)

Mathematics

2 answers:

alexira [117]4 years ago

7 0

It would be 21 that's your answer

andrew-mc [135]4 years ago

3 0

<span>x+1 > -5(7-2x)
Use distributive property(Multiply -5 by 7 and -2x).
x+1 > -35 + 10x
Subtract x on both sides so that the variable x is only on one side.
1 > -35 + 9x
Add 35 to both sides so that it cancels out negative 35.
36 > 9x
Divide 9 on both sides so that the only thing remaining on the right side is the variable x.
Final Answer: 4 > x</span>

You might be interested in

In a survey of 400 randomly selected people, it was determined that 22 play soccer. What is the probability that a randomly sel

insens350 [35]

Answer:

5.5% probability that a randomly selected person plays soccer

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

People surveyed who play soccer, so $D = 22$

Total outcomes:

Total people surveyed, so $P = 400$

What is the probability that a randomly selected person plays soccer?

$P = \frac{D}{T} = \frac{22}{400} = 0.055$

5.5% probability that a randomly selected person plays soccer

6 0

3 years ago

What two numbers multiply to -126 and add up to -65

Airida [17]

Xy = -126
x + y = -65

$xy = -126$
$\frac{xy}{x} = \frac{-126}{x}$
$y = \frac{-126}{x}$

$x + y = -65$
$x + \frac{-126}{x} = -65$
$\frac{x^{2}}{x} + \frac{-126}{x} = -65$
$\frac{x^{2} - 126}{x} = -65$
$-65x = x^{2} - 126$
$0 = x^{2} + 65x - 126$
$x = \frac{-(65) \+ \sqrt{(65)^{2} - 4(1)(-126)}}{2(1)}$
$x = \frac{-65 \± \sqrt{4225 + 504}}{2}$
$x = \frac{-65 \± \sqrt{4729}}{2}$
$x = \frac{-65 \± 68.8}{2}$
$x = \frac{-65 + 68.8}{2}$ $or$ $x = \frac{-65 - 68.8}{2}$
$x = \frac{3.8}{2}$ $or$ $x = \frac{-133.8}{2}$
$x = 1.9$ $or$ $x = -66.9$

x + y = -65
  1.9 + y = -65
- 1.9   - 1.9
y = -66.9
  (x, y) = (1.9, -66.9)

or

  x + y = -65
  -66.9 + y = -65
+ 66.9 + 66.9
y = 1.9
  (x, y) = (-66.9, 1.9)

The two numbers that add up to -65 and can multiply to -126 are the numbers -66.9 and 1.9.

3 0

3 years ago

An hour a jogger brings about 8 calories 2 lb of body weight how many calories will a jooger

Nezavi [6.7K]

Answer:

640 calories

Step-by-step explanation:

I attachedmy handwritten work and this is what I got

I'm only like 97.48% sure I understand the question. If I'm wrong someone tell me and I will try to fix it

and if it's too difficult to read, just tell me that too and I will fix it.

3 0

3 years ago

You are going shopping. You are given 40 dollars to buy clothing. You buy

Oduvanchick [21]

Answer:

6 dollars

Step-by-step explanation:

40-10=30

30/5= 6

7 0

3 years ago

Read 2 more answers

11.15+11.75+10.70 I need some help with this problem

Nina [5.8K]

Answer:

33.60 is your answer

Step-by-step explanation:

Remember to add based on place value.

Note that 10.70 is the same as 10.7

11.15 + 11.75 = 22.90

22.90 + 10.7 = 33.60

<em>~Senpai</em>

3 0

3 years ago

Read 2 more answers