3 years ago

What is 3 1/2- 2/7 ^ ^ fractions

Mathematics

1 answer:

Svet_ta [14]3 years ago

5 0

45/15 which equals 3 3/14 as a mixed number

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One number is 8 times a first number. A third number is 100 more than the first number. If the sum of the three is 690, find the

mezya [45]

<h3>Given</h3>

Three numbers are n, 8n, and (100+n).

Their total is 690.

the three numbers

<h3>Solution</h3>

n + 8n + (n+100) = 690

10n + 100 = 690 . . . . . . . simplify

10n = 590 . . . . . . . . . . . . subtract 100

n = 59

8n = 472

n +100 = 159

The three numbers are 59, 472, and 159.

6 0

2 years ago

Problem 5 Answer Choices (SELECT ALL THAT APPLY)

Vinvika [58]

Answer:

any number less than one multiplied by 300 would be less than 300

4 0

3 years ago

Solve for X. <br><br> <img src="https://tex.z-dn.net/?f=log_%7B8%7D%20x-log_%7B8%7D%20%28-2x%2B4%29%20%3D%20log_%7B8%7D%203" id=

taurus [48]

Answer: $x=\frac{12}{7}$

Step-by-step explanation:

Remember the logarithms properties:

$log(m)-log(n)=log(\frac{m}{n})\\\\b^{log_b(a)}=a$

Then,simplifying:

$log_{8}(\frac{x}{-2x+4}) = log_{8}(3)$

Apply base 8 to boths sides and then solve for "x":

$8^{log_{8}(\frac{x}{-2x+4})}=8^{log_{8}(3)}\\\\\frac{x}{-2x+4}=3\\\\x=3(-2x+4)\\\\x=-6x+12\\x+6x=12\\7x=12\\\\x=\frac{12}{7}$

4 0

2 years ago

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What is the slope of the line between the points (0.3) and (2,-7)?

Mkey [24]

Answer: it is probaly is 1/5

Step-by-step explanation:

3 0

2 years ago

Some help at 1 and 2 pleaseeeeeeeeee I really need help

Vaselesa [24]

The first one would be 12+14+18+12+15. She biked about 71 miles.

I did this by rounding the decimal places. 5 and up = round up. 4 or less= stays the same. I'll answer #2 in a second, I have to do something :)

7 0

2 years ago

Read 2 more answers