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Gennadij [26K]
3 years ago
6

Factor the mn+5m-3n-15

Mathematics
1 answer:
neonofarm [45]3 years ago
3 0
The factor of mn+5m-3n-15 is 6m-4n-15.
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Pls help me!! I just need help on both of the following questions, a-d on each
Ymorist [56]
I'll do a and e on the first one to show you how to do it

Then See if you can do the rest

a. 6(-3)<span><span>
</span></span>
When your multiplying or dividing with negative numbers; If one of your numbers is negative like the one above, your answer will be negative

So 6 × 3 = 18 ; but since there is a negative on the 3 your answer will be -18

e. -20 ÷ 5

same for this; 20 ÷ 5 = 4, but since the 20 is negative the answer will be <span>-4

You do b, c, d, and f on the first question. Tell me what you get and we'll go from there

</span>Now for the second question <span>

</span>I will do a and d to show you how to do this then you do the rest<span> (I'm inserting a picture with these)

</span>a. 4(-2 \frac{1}{3}) + 7 \frac{1}{6}
First go ahead and turn the fractions into improper fractions, this makes them a bit easier to work with. When multiplying fractions; they do not need a common denominator, all you do is multiply top by top and bottom by bottom.<span>
However, when you add and subtract fractions you MUST have a common denominator

</span>d. (-4.25)(2) + (-4.25)(-2)
remember from the first problem a negative times a positive gives you a negative<span>

but when you times a negative by a negative you get a positive


Now you try b and c; let me know what you get, and we'll go from there!

</span>

7 0
3 years ago
On Monday, a localamburger shop said a combined total of 225 hamburgers and cheeseburgers. The number of cheeseburgers sold was
zheka24 [161]

Answer:

h = hamburgers sold

2h - 72 = 578

2h = 650

2       2

h = 325

There were 72 fewer cheeseburgers sold than hamburgers. That means cheeseburgers = 325 - 72

325 - 72 =  253

253 = cheeseburgers

325 = hamburgers

253 + 325 = 578

Hamburgers = 325

Hope this helps :)

4 0
3 years ago
Mr. Richards purchased 8 T-shirts for the volleyball team. The total cost of the T-shirts was $70.56. How much did each shirt co
bezimeni [28]

Answer:

$8.82

Step-by-step explanation:

$70.56÷8 =$8.82 total

7 0
3 years ago
2
mezya [45]

Answer:

D. Logical Fallacies

Step-by-step explanation:

Let's break this down:

fallacy: A false or mistaken idea.

By this definition, we can see that "false" would go with the word "faulty". A logical Fallacy is is a false or mistaken idea that's intended to sound logical. I hope this helps you!!

5 0
3 years ago
Solve the system of equations x – 2y = -19 and - 3x + 5y = 48 by combining<br> the equations.
mr_godi [17]

Answer:

x= -1

y = 9

Step-by-step explanation:

to solve this system of equation

let

x - 2y = -19.....................................equation 1

-3x + 5y = 48 .................................. equation2

from equation 1

x - 2y = -19.....................................equation 1

x = -19 + 2y................................... equation 3

substitute the value of x into equation 2

-3x + 5y = 48 .................................. equation2

-3(-19 + 2y) + 5y = 48

57 - 6y + 5y = 48

combine the like terms

-6y + 5y = 48 -57

-y = - 9

divide both side by -

y = 9

put y= 9 into equation 3

x = -19 + 2y................................... equation 3

x = -19 + 2(9)

x = -19 + 18

x = -1

therefore the value of x and y is -1 and 9 respectively

3 0
3 years ago
Read 2 more answers
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