MATHEMATICS MIDDLE SCHOOL

Solve for b
-3=4/3+b

Answers

Answer 1
Answer:

Answer:

B= -4.3 or -13/3
Answer 2
Answer: You’re going to want to subtract -3 by 4/3. Which makes b= -4.3333 or -13/3

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A fair number cube is rolled what is the probability that a number greater then 4 is rolled

Answers

Answer: 1/3

Step-by-step explanation: Probability is the likelihood that an event will happen.

So to find the probability of rolling a die and the number that appears will be greater than 4, it's important to understand that there are only 2 numbers that are greater than 4 on a die. The two numbers are 5 and 6.

We can find the probability of an event using the following ratio.

Number of favorable outcomes/total number of outcomes.

In this case, since we're asked to find the probability of landing on 5 or 6, the favorable outcomes are rolling a 5 and 6. Since there are two numbers greater than 4 on a dice, the number of favorable outcomes will be 2.

The total number of outcomes is all the numbers on the dice which is 6.

Now we have the fraction 2/6. Since 2/6 is not in lowest terms, we divide the numerator and denominator by 2 and we get 1/3.

1/3 is also equivalent to 33.3333333% which means it's unlikely to roll a 5 or 6.
2/6

5 and 6 out of the 6 numbers

Which expression is equivalent to 8x + 12y? A) 20xy B) xy + 20 C) 4xy(2 + 3) D) 4(2x + 3y)

Answers

Answer:

D is the answer

Step-by-step explanation:

4*2 is equal to 8 so it would be 8x 4*3y is equal to 12y
Use Photomath it will tell you the answer

These too please i’ll cry if i don’t figure this out

Answers

Answer:

PO = 11, LQ = 4, NQ = 12, perimeter of NLP = 24

Step-by-step explanation:

The centroid is the point where the medians intersect each other.

A median divides the side it intersects in 2 equal parts.

So, if NP = 11, then PO = 11

The medians of a triangle intersect each other in the ratio 2:1

So, if NL = 8, then LQ = 4 and NQ = 8+4 = 12

if ML = 10, LP = 5

Finally, the perimeter of the triangle NLP is

NL + NP + LP = 8 + 11 + 5 = 24

PLEASE HELP!!!!! And explain too! Thanks!!! I am a prime number between 40 & 50. If you add one to me, the sum of ALL prime factors of that composite number is 15. What number am I?

Answers


I don't know any slick way to do this.  I would just list the prime numbers
between 40 and 50 and test them one at a time.

The prime numbers between 40 and 50 are: 41, 43, 47

Test 41:
-- add 1 . . . 42
-- prime factors of 42 . . . 2, 3, 7
-- sum of the factors . . . 12

Test 43:
-- add 1 . . . 44
-- prime factors of 44 . . . 2, 11
-- sum of the factors . . . 13

Test 47:
-- add 1 . . . 48
-- prime factors of 48 . . . 2, 3,
-- sum of the factors . . . 5

Maybe I'm not understanding how to list prime factors, but so far,
I haven't found any number that answers the question.

Maybe if I write the prime factorization of 44 like this:

               44 = 2 * 2 * 11

Now the items in the prime factorization do add up to 15.
So the answer would seem to be 43.

45.5 meters in 13 seconds?

Answers

Speed Formula:

Speed=\frac { Distance }{ Time }

*Speed is constant.

-------------

Speed:

Speed=\frac { 45.5\quad metres }{ 13\quad seconds } =3.5\quad metres\quad per\quad second

A triangle has a height of 18 centimeters and a base of 3.5 centimeters. What is the area of the triangle?

Answers

Answer:

31.5 cm^2

Step-by-step explanation:

The formula for the area of a triangle is 1/2 x (b x h)

in the provided question -

b = 3.5 cm

h = 18cm

thus the area of the triangle will be -

1/2 x (3.5 x 18)

= 1/2 x 63

= 31.5 cm^2
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