MATHEMATICS HIGH SCHOOL

Find the value of n:5/6=7n + 9/9

Answers

Answer 1
Answer: n= -1/42

5/6 = 7n + 1
5/6 -1 = 7n
-1/6 = 7n
-1/42 = n

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If you divide the mass of a substance by its volume, can you can find its density?

Answers

So the question is is it true or false that when you divide the mass of a substance by it's volume you will get its density. So from the definition of density we know that density=mass/volume or: D=m/V. So the answer is true, when you divide a mass of a sbstance by its volume, you get it's density.

Draw quick pictures and write to explain how to break apart addends to find the sum of 324 + 231

Answers

Answer: The explanation of the given addition is mentioned below.  

Step-by-step explanation:

Since Here we have numbers 324 and 231.

So if we want to add these two numbers then at first we should add 4 and 1, That is 4+1= 5, which is the once place digit of our answer.

Now we should add 2 and 3 , that is , 2+3 =5 which is the tense place digit of our answer.

Finally we should add 3 and 2 the result is 3+2= 5 , which is the hundreds place digit of our answer.

Thus the complete result is 555.

A water sprinkler system can water 1/5
of a yard in
1/10
of a hour. Compute the unit rate by setting up a complex fraction and simplifying.

A)
1 yards per hour


B)
2 yards per hour


C)
5 yards per hour


D)
10 yards per hour

Answers

Answer:

Choice B: 2 yards per hour.

Step-by-step explanation:

In order to compute the unit rate we have to divide the number of yards watered by the amount of hours taken:

\therefore Unit\: Rate =(yards)/(hours) =((1)/(5) yards)/((1)/(10)hours).

Take the reciprocal of the denominator of the expression and we get:

Unit\: Rate=((1)/(5) yards*10)/(hours).

Which simplifies to

(2 yards)/(hour)

Thus Unit rate = (2 yards)/(hour) which is choice B.

Four of the angles of a pentagon measure 85°, 110°, 135°, and 95°. Find the measure of the missing angle. A. 115° B. 95°C. 135°D. 85°

Answers

Hence the missing angle is 115 degrees

Sum of angle in a pentagon

The sum of an interior angle of a pentagon is 540 degrees

Let the value of the fifth angle be "x", hence;

x + 85°+ 110° + 135° + 95° = 540

x = 540 - (85°+ 110° + 135° + 95°)

x = 540 - 425

x = 115 degrees

Hence the missing angle is 115 degrees

Learn more on angles in a pentagon here: brainly.com/question/21475963
sum of all 5 angles of a pentagon = 540°
85 + 110 + 135 + 95 = 425 
540 - 425 = 115 
missing angle = 115° (answer is A)

Solve.2/3 divide -1 1/3


A. 1/2

B. 2

C. -1 1/8

D. -1/2

Answers

2/3 ÷ -1 1/3
2/3 ÷ -4/3
-2/3 × 3/4
-(2 × 3) / (3 × 4)
-6/12
-1/2

The answer is: -1/2 or -0.5.

Dina distributed 120 marbles to three of her friends. Raghu received one-fourth of the marbles. Freya received one - third of the REMAINING marbles. Bineet got half of the REMAINING marbles. Who got the MOST number of marbles?

Answers

They all got the same amount, each person got 30 marbles.

120 divided by 4 = 30.
Raghu received 30.
90 remaining,
90 divided by 3 = 30
Frey’s received 30
There are 60 remaining, Bineet got half of the remaining so he now has 30 as well.
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