MATHEMATICS MIDDLE SCHOOL

10 coins have a mass of 45 grams. How many grams is one coin?

Answers

Answer 1
Answer: We can't tell from the information given.  We don't know how many
different types of coins there are.  All we know is that all 10 of them
on the scale at the same time have 45 grams of mass.

IF all the coins happen to be identical ... AND each one is worn down
the same amount, AND each one has the same amount of dirt and oil
on it ... then each one has (45/10) = 4.5 grams of mass. 

But those are some big IFs.
Answer 2
Answer: 45 / 10 = 4.5

There are 4.5 grams in each coin.

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Well is buying tickets for a school play adult tickets cost $2 More than student tickets he buys nine student tickets and five adult tickets and spent a total of $66 How much is an adult ticket

Answers

33$ is it your welcome

What are two different methods you can use to figure out what 34% of 120 is? (Explain both methods and show your setup of each) Do not solve

Answers

You can use the proportion (is)/(of) or (part)/(whole) = (percent)/(100), where you fill in what you know, crossmulitply, and solve for x. You can also write it as an equation, where of=mulitply and is=equal to, and the percent is expressed as a decimal. Your two different equations would be .34x120=x and (x)/(120)=(34)/(100)

the answer would be 40.8. simply u take 34 multiply by 120 the u divide the answer by 100 to 40.8

Yadier killed 3 4/5 miles from the Nature Center to the waterfall. Then he hiked another 2 2/3 miles to Overlook Point. How far did Yadier hike from the Nature Center ? Give an estimate and the exact answer.

Answers

Answer: estimate 7

exact: 6 7/15

Step-by-step explanation: for the estimate round 3 4/5 to 4 and 2 2/3 to 3 and 4 + 3 = 7

for the exact number convert 3 4/5 to 3 12/15

and convert 2 2/3 to 2 10 /15

then add 3 + 2 = 5

and 12/15 + 10/15 = 22/15

convert 22/15 to a mixed number which is 1 7/15

then 5 + 1 7/15

answer 6 7/15

hope this helps mark me brainliest if it helped

Three less than one-fourth of the product of eight thirds and nine. Please write equation, then solve.

Answers

Put simply, you have to work backwards in making the equations. Start with the product of 8/3 and 9.
(8)/(3)*9

 Next take 1/4 of that. This can be done in two ways, either multiplying by 1/4:
((8)/(3)*9)*(1)/(4)

, or dividing everything by 4.
((8)/(3)*9)/4

Finally, subtract three.

The final equation would read:
(((8)/(3)*9)*(1)/(4))-3



Using PE(M/D)(A/S), we'd start with (8)/(3)*9

3 and 9 cancel out to be 1 and 3, leaving us with (8)/(1), or 8, and 3 and this part of the equation reading 8*3, which is 24.

The next step is (24)/(4), which is 6.

Lastly we subtract 3 from six, leaving us 3.

¹/₄ × ( ⁸/₃ × 9 ) - 3 = 3

Further explanation

Order of Operations in Mathematics follow this following rule :

  • Parentheses
  • Exponents
  • Multiplication and Division
  • Addition and Subtraction

This rule is known as the PEMDAS method.

In working on a mathematical problem, we first calculate operation that is in parentheses, follow by exponentiation, then multiplication or division, and finally addition or subtraction.

Let us tackle the problem!

Product of eight thirds and nine

(8)/(3) * 9

One-fourth of the product of eight thirds and nine

(1)/(4) * ( (8)/(3) * 9 )

Three less than one-fourth of the product of eight thirds and nine

(1)/(4) * ( (8)/(3) * 9 ) - 3

= (1)/(4) * ( (8 * 9)/(3) ) - 3

= (1)/(4) * ( (72)/(3) ) - 3

= (1)/(4) * 24 - 3

= (1 * 24)/(4) - 3

= (24)/(4) - 3

= 6 - 3

= \boxed {3}

Learn more

Answer details

Grade: Middle School

Subject: Mathematics

Chapter: Order Of Operations

Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point , Multiplication , Division , Exponent , PEMDAS , percentange , percent

What is the next term in the sequence below?648, 108, 18, 3, . . .

A. 0.5
B. 1.5
C. 1.75
D. 2.5

Answers

The next term or the fifth term of the geometric sequence is 0.5. The option A is the correct option.

What is geometric sequence?

Geometric sequence is the sequence in which the next term is obtained by multiplying the previous term with the same number for the whole series.

It can be given as,

a_n=ar^(n-1)

Here, (a) is the first term of the sequence and (r) is the common ratio.

The sequence given in the problem is,

648,  108,  18,  3,  . . .  and so on.

The common ratio between the two terns is,

r=(648)/(108)=6\nr=(108)/(18)=6\nr=(18)/(3)=6\n\

Thus, the common ratio of the geometric series is 6.

The first term is 648 and the common ratio is 6. Thus the next or fifth term of the sequence is,

a_5=(648)((1)/(6))^(5-1)\na_5=(648)((1)/(6))^(4)\na_5=0.5

Hence, the next term or the fifth term of the geometric sequence is 0.5. The option A is the correct option.

Learn more about the geometric sequence here;

brainly.com/question/1509142

Answer:

To get from one term of this sequence to the next, divide by 6.

So, once we get to three, the next term will be 0.5 because 3/6 = 0.5

Let me know if this helps!

Some one please help me with this problem. Thank you. NO answers, just explanation on how to solve it.

Answers

y = 3/2 t - 5/2 ; where t = 3

Substitute t by its value. the nearness of 3/2 to t denotes multiplication.

y = (3/2 *3) - 5/2

3 is a whole number. it is 3/1 in fraction form. 
In multiplying fractions, simply multiply the numerator and the denominator.

y = (3*3 / 2*1) - 5/2
y = 9/2 - 5/2

Subtracting fractions: We can only subtract or add fractions if they all have the same common denominator. Since both fractions have 2 as denominator, we can proceed to subtracting its numerators.

y = (9-5)/2      *subtract numerators and place over the common denominator
y = 4/2            * simplify the fraction.
y = 2/1 or 2
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