All categories

2 years ago

Solve the inequality.

2 answers:

8 0

Whenever you are working with inequalities, you want to first isolate the variable by doing the inverse of what was already done.

42<-6d
They have multiplied d by -6, so we have to divide both sides by -6. -6/-6=1. 42/-6 is -7. When you multiply/divide by a negative number, you have to flip the inequality sign. So we have -7<d, or d>-7. Flip the sign and you have d<-7, so your answer is A.

makkiz [27]2 years ago

5 0

The answer is C. Divide by -6 on both sides. The sign is flipped when you divide by a negative that's why its C and not A

You might be interested in

Work out 5 x 10^6 / 4 x 10^4 Give your answer as an ordinary number.

Angelina_Jolie [31]

Answer:

$1.25 \times {10}^{2} = 125$

Step-by-step explanation:

$\frac{5 \times {10}^{6} }{4 \times {10}^{4} } = \frac{5}{4} \times \frac{ {10}^{6} }{ {10}^{4} } = 1.25 \times {10}^{2} = 125$

5 0

2 years ago

Selma spent

Taya2010 [7]

Answer:

30%

Step-by-step explanation:

Selma spent 3/10 of her allowance on a new backpack.

Hence, the percent of her allowance that she spent is calculated as:

Fraction of allowance spent on Backpack × 100

= 3/10 × 100

= 0.3/1 × 100

= 30%

Therefore, Selma spent 30% of her allowance on a new backpack.

8 0

2 years ago

PLEASEEEEE HELP!! BRAINLIEST!!

ycow [4]

Step-by-step explanation:

Rate of change = final - initial / time(in years)

= 41 - 43 / 2014 - 2012

= - 2 / 2

Rate of change = - 1

Therefore, the number of employees with health care benefits reduced by 1 person per year between 2012 - 2014 in response to policy changes.

5 0

2 years ago

Two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and Section B had 20 students

Nezavi [6.7K]

Answer: A. 85.7

Step-by-step explanation:

Given : Two sections of a class took the same quiz.

Section A had 15 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90.

We know that , $\text{Mean}=\dfrac{\text{Sum of observations}}{\text{No. of observations}}$

Then , for section A :

$\text{Mean score }=\dfrac{\text{Sum of scores in sec A}}{\text{No. of students}}$

$\Rightarrow\ 80=\dfrac{\text{Sum of scores in sec A}}{15}\\\\\Rightarrow\ \text{Sum of scores in sec A}=80\times15=1200$

Similarly in Section B, $\text{Sum of scores in sec B}=90\times20=1800$

Total scores = Sum of scores in sec A+Sum of scores in sec B

=1200+1800=3000

Total students = Students in sec A +Students in sec B

=15+20=35

Now , the mean score for all of the students on the quiz = $\dfrac{\text{Total score}}{\text{Total students}}$

$=\dfrac{3000}{35}=85.7142857143\approx85.7$

Hence, the approximate mean score for all of the students on the quiz = 85.7

Thus , the correct answer is option A. 85.7.

7 0

2 years ago

What is the answer to 25/0.5?

Nookie1986 [14]

the answer is 40......

8 0

2 years ago

Read 2 more answers