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Lena [83]
3 years ago
13

SOMEBODY HELP ME IM DESPERATE

Mathematics
2 answers:
SOVA2 [1]3 years ago
7 0
Commutative property of multiplication
Your right
garik1379 [7]3 years ago
4 0

I believe it is the commutative property of multiplication. Commutative property is you can put the numbers in any order and it will have the same end result. I got multiplication because it is multiplication.

Hope this helps!



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What is two numbers that multiply to 24 but add to 25?
lesya [120]
X, y - the numbers

xy=24 \\
x+y=25 \\ \\
\hbox{solve the second equation for y:} \\
x+y=25 \\
y=25-x \\ \\
\hbox{substitute 25-x for y in the first equation:} \\
x(25-x)=24 \\
25x-x^2=24 \\
-x^2+25x-24=0 \\
-x^2+24x+x-24=0 \\
-x(x-24)+1(x-24)=0 \\
(-x+1)(x-24)=0 \\
-x+1=0 \ \lor \ x-24=0 \\
x=1 \ \lor \ x=24 \\ \\
y=25-x \\
y=25-1 \ \lor \ y=25-24 \\
y=24 \ \lor \ y=1

The numbers are 1 and 24.
6 0
4 years ago
In a grocery store there are 4 self-checkout lines and 8 lines with cashiers. Find the ratio of the number of lines with cashier
sasho [114]
It is a ratio of 2:1 or 2/1 I think
8 0
3 years ago
If f(x) = x2, and<br> g(x) = x – 1, then<br> f(g(x)) = [? ]x2+[?]+ [?]
Basile [38]

Answer:

f(g(x)) = x² - 2x + 1

Step-by-step explanation:

To find f(g(x)), substitute x = g(x) into f(x) , that is

f(g(x))

= f(x - 1)

= (x - 1)² ← expand using FOIL

= x² - 2x + 1

5 0
3 years ago
If 8x-7y=-8 is a true equation, what would be the value of -8+8-7y
mariarad [96]

Answer:

-7y

Step-by-step explanation:

8 0
3 years ago
Shaun had a collection of 840 matchbox vehicles. Of these vehicles, 15% are four-wheelers and 30% are convertibles. The rest are
lakkis [162]

Answer:

<h2>462</h2>

Step-by-step explanation:

15% of 840 is 126

30% of 840 is 252

 252

<u>+  126 </u>

<em> 378</em>

<em></em>

840 - 378 = <em>462</em>

or

--------------------------------------------------------------------------------------------------------------

55% of 840 is...

<em>462</em>

--------------------------------------------------------------------------------------------------------------

<em>Hope this helps! <3</em>

5 0
3 years ago
Read 2 more answers
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