MATHEMATICS MIDDLE SCHOOL

Which product is negative?
Which product is negative? - 1

Answers

Answer 1
Answer:

For this case we have that by definition, the law of the signs of multiplication states that:

+ * + = +\n+ * - = -\n- * + = -\n- * - = +

So:

Option A:

- * - * + = + * + = +

It does not give a negative sign.

Option B:

+ * - * - = - * - = +

It does not give a negative sign.

Option C:

+ * + * + = + * + = +

It does not give a negative sign.

Option D:

- * - * - = + * - = -

The sign is negative.

Answer:

Option D
Answer 2
Answer:

Answer: The Last One

Step-by-step explanation: The Last One Would Be A Product Of Negative

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A number is chosen at random from 1 to 10.Find the probability of not selecting a multiple of 3.

Answers

the probability is 9/10 or 90%
First, you need to figure out how many of the numbers are multiples of 3. The numbers 3, 6, and 9 are all multiples of three, so three numbers are thrown out of the probability. 

There are now 7 numbers left. Your probability is out of ten, so there is a 7/10 of a chance to  not  pull a number that is a multiple of 3.

a satellite television provides charges 39.95 per month for service. on demand movies can be rented for 3.99 each. broadcasts of special events can be rented for 49.95 each. write an expression to represent the total monthly cost if you rent m movies and s special events

Answers

39.95 + 3.99m + 49.95s
total monthly cost= monthly service fee + (number of movies rented, m)x(cost of movies rented) + (broadcasts of special events)x(number of broadcasts of special events, s)

with that information, when you plug in the numbers you get:

total monthly cost = (3.99)(m) + (49.95)(s) + 39.95

you can also write it as:
3.99m + 49.95s +39.95 = total monthly cost

What does r equal in 4r+5=3r

Answers

4r+5=3r can also be written
4r=3r-5
1r=-5

) Aubrey can walk 4 1/2 miles in 1/2 hours. Find the average speed in miles per hour.

Answers

I think the answer is 5 because you add the 1/2 and the other 1/2 leave the for alone that will give you 5Example: 1/2+1/2=1+4=5

find the three consecutive integers such as the sum of the first and third is 49 less than three times the second

Answers

Answer:

48, 49, 50

Step-by-step explanation:

n,\ n+1,\ n+2-\text{three consecutive integers}\n\n\text{The equation:}\n\nn+(n+2)=3(n+1)-49\qquad\text{use distributive property}\n\n2n+2=3n+3-49\qquad\text{subtract 3n from both sides}\n\n-n+2=-46\qquad\text{subtract 2 from both sides}\n\n-n=-48\qquad\text{change the signs}\n\nn=48\n\n48+1=49\n\n48+2=50

A set of numbers is shown below: {0, 0.6, 2, 4, 6} Which of the following shows all the numbers from the set that make the inequality 2x + 3 ≥ 7 true?

Answers

The given equality hold true when x = 2.

Put x = 2 in inequality.

2(2) + 3 = 4+3 = 7 = R.H.S.

For x = 4 and 6, L.H.S(2x+3) is greater than 7.

Hence for x = 2, 4 and 6, the above inequality holds true.

Hope this helps!

Answer:

2,4,and 6 are the numbers that show the inequality

2×2+3=7

4×2+3>7

6×2+3>7

Step-by-step explanation:
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