MATHEMATICS MIDDLE SCHOOL

What is the value of x if 3x-6=21

Answers

Answer 1

Answer:

Answer:

the x would equal to 9

Step-by-step explanation:

21+6=27

27÷3=9

Answer 2

Answer:

Answer:6=21 false

Step-by-step explanation:

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I am very weak in this help me please. There are 1800 gym members in total.3/4 are aged 25 to59 years, 1/5 are over 60 years and remainder are under 25 years. How many members are under 25 years?

Answers

Steps to solve:

1. 3/4+1/5
Change both denominator to the same- 4*5=20
So far its: ?/20 + ?/20

2. For the first fraction (3/4) we do 3*5=15
Because when we found the denominators we multiplied each denominator by each other. For the second one we do pretty much the same. We do 1*4=4.

3. The final equation is 15/20 + 4/20.
Now add both numerators, which is 19. You leave the denominator as it is. So the final fraction is 19/20.

4. Next to get a full fraction from 19/20 you need 1/20 to get 20/20=1.
On the calculator you type in: 1/20*1800
OR... 1800/20
OR... (18/2)100

So the final answer is 90. 1800/20=90
= 90 members under the age of 25.

To solve this, we add , 3/4 + 1/5

To add fractions we different denominators we have to find a common multiple.. 4 * 5 = 20 and 5 * 4 = 20

We multiply everything by 5 (for 3/4), to get 15/20
We multiply everything by 4 (for 1/5), to get 4/20

= 15/20 + 4/20 (add the numerators)
= 19/20

If 19/20 people are 25 to 60+,
that means 1/20 of people are under 25

We apply this to 1800 gym members:

1800 / 20 <- get's us 1/20 of 1800
= 90

There are 90 members under 25

The Diameter of a circle is 56mm. What is the area?

Answers

The answer is not Arby’s the answer is A= 2.46•10-3 m2

A≈2.46×10-3m²Istheanswer

Can anyone please help me this is my last chance to go to the 9th grade and I really want to pass

Answers

V=(1/3)hpir^2
r=5
h=16
V=(1/3)16pi5^2
V=(1/3)400pi
V=(400pi)/3 ft^3

answer is B, yo is correct

the answer is C.)400*3.14(pi) and i do k12 also.
hope i helped!

What is x if 8x + 75=91

Answers

Answer:2

Step-by-step explanation:

Holly bought CDS and spent $34.57 . what is the amount rounded to the nearest dollar

Answers

As the second part of the cost is above 0.5, this means that it is being rounded up.
Therefore, it is rounded up to $35
Hope this helps :)

The answer is $35 becuause you have to round 4 up

The number of campers who sign up for archery each week is listed in the table. If the relationship is proportional, how many campers will sign up for archery in Week 3?Archery Sign Up Total Campers
Week 1 36 120
Week 2 45 150
Week 3 ? 130

A. 54
B. 40
C. 41
D. 39

Answers

Answer:

$\boxed{39}$

Step-by-step explanation:

$\begin{array}{rcc}& \textbf{Archery Sign Up} & \textbf{Total Campers}\n\textbf{Week 1} & 36 & 120\n\textbf{Week 2} & 45 & 150\n\textbf{Week 3} & ? & 130\n\end{array}$