All categories

3 years ago

Determine the sign of the some of negative 8 + 11

Mathematics

2 answers:

AVprozaik [17]3 years ago

8 0

Answer:

positive 3

Step-by-step explanation:

-8 + 11 is 3. the other way you can think of it is by subtracting 8 from 11.

ch4aika [34]3 years ago

5 0

Answer:

Positive

Step-by-step explanation:

-8 plus 11 is 3 and 3 is a positive number

You might be interested in

Help asap!!!!!!!!!!!!!!!!!

Temka [501]

Answer: Um i think someone else from your school asked the same exact question and i literally just answered it, just click on my account to see the answer.....

Step-by-step explanation:

5 0

3 years ago

HELP what is 3( 2+5) - 5 (3) + 8

neonofarm [45]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Which numbers are written in scientific notation? Check all that apply.

____ [38]

Answer:

$2.7 \times 10^{ - 3}$

$6.1 \times 10^{5}$

$9.582 \times 10^{6}$

Step-by-step explanation:

4 0

3 years ago

Mr. Fry is building a fence around his pool. •Length of the fence is 60 feet. •Width of the fence is 30 feet. How many yards of

Alenkinab [10]

C)90 because if it go all the way around it would be 180 and I don't see that

8 0

3 years ago

A metallurgist has one alloy containing 34% copper another containing 48% copper. How many pounds of each alloy must he use to m

Zielflug [23.3K]

Answer:

<h2>36.14 pounds of 34% copper alloy and 9.86 pounds of 48% copper alloy</h2>

Step-by-step explanation:

First alloy contains 34% copper and the second alloy contains 48% alloy.

We wish to make 46 pounds of a third alloy containing 37% copper.

Let the weight of first alloy used be $x$ in pounds and the weight of second alloy used be $y$ in pounds.

Total weight = $46\text{ }pounds=x+y$ $-(i)$

Total weight of copper = $37\%\text{ of 46 pounds = }34\%\text{ of }x\text{ pounds + }48\%\text{ of }y\text{ pounds }$

$\dfrac{37\times 46}{100}=\dfrac{34x}{100}+\dfrac{48y}{100}\\\\ 34x+48y=1702$ $-(ii)$

Subtracting 34 times first equation from second equation,

$34x+48y-34x-34y=1702-34\times46\\14y=138\\y=9.857\text{ }pounds \\x=36.143\text{ }pounds$

∴ 36.14 pounds of first alloy and 9.86 pounds of second alloy were used.

5 0

3 years ago