MATHEMATICS MIDDLE SCHOOL

PLS HELP AND I DONT HAVE A CALCULATOR WITH ME :(
a=98x21x65

Answers

Answer 1
Answer: First, you multiply  98*21 which equals 2058. Then, you multiply 2058 times 65 which equals 133770 and there's your answer.
Answer 2
Answer: the answer is
98×21×65=

133770

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What is 400lb converted to tons

Question in pic, will mark brainliest.

Answers

Answer:

c.  40.

Step-by-step explanation:

Since the small and large triangles are similar we have the equation:

45 / 90 = 6x + 4 / 4x + 56

1 /2 = 6x + 4 / 4x + 56

2(6x + 4)  = 4x + 56

12x + 8 = 4x + 56

8x = 48

x = 6

So the length of the mid segment = 6(6) + 4 = 40.

Answer:

the anwser is A

Step-by-step explanation:

Which of these expressions represent solutions to the equation

Answers

3 and -3

I think, I’m not really sure though.

What is 100% divided by 7

Answers

14.29 %because you change 100 to a decimal and that's 1 and 1/7 is .1428571428 and then change it back to a percent so its 14.29% rounded

Answer:

I think the answer is 0.07%????

Step-by-step explanation:

7 divided by 100 is 0.07

100 divided by 7 is 14.28571429

1.30% of what number is 96?
2. 63 is 15% of what number?

Answers

1. 2.88
2. 420

Please help me back if you can Thanks!
let the no. be x

now, according to question, 30 % of x = 96

= 30/100 by x = 96
 30x = 9600
thus, x = 320.

Thus, 30% of 320 is 96.

2)  let the no. be y

now, according to question,
15 % of y = 63

= 15/100 x y = 63

 15y = 6300

thus, y = 420.

thus, 63 is 15% of 420

What is the missing number in the data set 15,17,28,30 if the mean is 23

Answers

mean is add the numbers and divide the result by how many numbers there are
mean=23
1 missing number which is x
5 numbers including missing one 
(15+17+28+30+x)/5=23
solve for x
multiply both sides by 5
15+17+28+30+x=115
add like terms
90+x=115
subtract 90
x=25

the missing number is 25
15+17+28+30=90, if theres another number than there r 5 total numbers, 23*5=115, 115-90=25, so 25

Which is a better deal 48 oz for $6 or 4 lbs for $12? Please answer its urgent!!!!

Answers

Hi Kaiden!

So to answer the question, we'll first need to understand the conversion from ounces to pounds.  In the U.S.A., 1 lb (pound) is the same as 16 oz (ounces).  To approach this problem, we can either convert pounds to ounces or ounces to pounds, in order to better compare the two prices we're given.  For this problem, let's convert the 4 lbs to oz.

We know that 1 lb = 16 oz so using multiplication, we can find that 4 lbs is:
⇒ 4 × 16 oz = 64 oz.

Let's look at the problem again.  We now see that the deal is either 48 oz for $6.00 OR 64 oz for $12.00.  If we take the first part of the deal, 48 oz for $6.00, and multiply everything by 2, we can further see that the deal is now:
96 oz for $12.00 OR 64 oz for $12.00.  We can now see that we get more quantity with the first deal.

-Hope this helps!
Well, right now we would have to convert.
So there are 16 ounces inn 1 pound.
First we would have to multiply 16 times 4 to see how many ounces.
16 times 4 = 64 ounces.
Now let's see how many POUNDS is 48 ounces.
We would have to divide 48 by 16, which is 3, so it would be 3 pounds.
Now we would have to find the unit rate of both sides.
So we would do 12 divided by 4 which equals 3, so it's $3 for every pound.
Now we must find the unit rate of the other given option.
We'll do 6 divided by 3, (because 48 ounces is equivalent to 3 pounds),
and that'll be 2, so it's $2 for every pound.
Now, we'll have to go with the cheaper option, because it'll be the better deal, and that deal is.....................
48 oz for $6.
I hope I helped, and PLEASE choose my answer as the Brainliest!
Thank you! =D
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