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ElenaW [278]
2 years ago
5

Factorise 15x + 35y - 40 z

Mathematics
2 answers:
Anna007 [38]2 years ago
6 0
5(3x+7y-8z)

Factor out the common number
xxTIMURxx [149]2 years ago
4 0
Put number five as a common factor.

15x + 35y + 40z = 5 . 3x + 5 .7y + 5 .8z

= 5 . ( 3x + 7y + 8z )
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At a restaurant you only have $20 to spend on dinner. In addition to the cost of the meal you must pay a 5% sales tax and leave
andriy [413]
If you spend $10 on dinner tax is $5 so $15. Then a 15% tip is $2.25 plus $15 is $17.25 spent all together. That leaves you with $2.75 left.
4 0
3 years ago
Katie went to buy a new tv and finds one for $550.00. In the state of Texas, there is a 6% sales tax on items. How much did Kati
kvv77 [185]

Answer:

583$

Step-by-step explanation:

6% is equal to 0.06, so you multiply 550 by 0.06.  which equals 33. Then, because it asks for how much Katie played, including the tax and TV, you add 33 to 550.

8 0
3 years ago
I dont understand please help
DiKsa [7]

2 \frac{1}{2}+(-2\frac{1}{4})

This is equal to:

2\frac{1}{2}-2\frac{1}{4}

When you add a negative number, it turns into subtraction.

First, I would change it to mixed numbers:

\frac{5}{2}-\frac{9}{4}

Now, you need to change the denominators to make sure they are the same on both fractions. I changed the first fraction's denominator to 4 so they match. You can do this by multiplying the numerator by 2:

\frac{10}{4}-\frac{9}{4}

Now, you simply subtract:

10-9=1

1/4 is your answer.

I hope this helps :)

3 0
3 years ago
Find the value of: (p+q)^0+1^p+q
MrMuchimi

Answer: 2+q

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP <br><br>due today in 20 minutes <br>i will mark you brainliest <br>​
zzz [600]
Excuse if I have this wrong but I’m going to guess that in every question how the 2 is up the m or the other letters that means you are multiplying that number/ letter by its self one more time so I’m not really sure, I’m sorry.
6 0
2 years ago
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