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Flura [38]
3 years ago
15

Can I please have help on 9-11?

Mathematics
1 answer:
inna [77]3 years ago
7 0

9) -2
10) 8
11) $3.17, y= 0.17x+3
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School sold 2 adult tickets and 10 child tickets for a total of $56. The school took in $52 on the second
pochemuha

Answer:

x+y=4+8=12

$12 for one of each

or if you mean indivually (the wording confused me)

$4 for child, $8 for adult

Step-by-step explanation:

x=adult

y=child

2x+10y=56

4x+5y=52

iin order to be able to subtract values and find x and y im going to multiply 4x+5y=52 by two and get 8x+10y=104

8x+10y=104

-2x+10y=56

6x=48 divide each side by 6

x=8

plug 8 back into an equation to find cost of y

2(8)+10y=56

-16            -16

10y=40

y=4

6 0
3 years ago
Matt says he can find the sum of 45+50 without rewriting it. Explain how you can solve this problem using mental math.
ryzh [129]
Thinking about combining 45 pennies and 50 pennies. How many pennies would you have in total? 95
6 0
2 years ago
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Simplify expression X^2+x-2/x^3-x^2+2x-2
professor190 [17]

Answer:


=\frac {x+2}{x^2+2} is the simplest form of given expression.


Step-by-step explanation:

The given question is \frac{x^2+x-2}{x^3-x^2+2x-2}


To solve the problem we have to group or split middle term and then factorise


\frac{x^2+(2x-x)-2}{(x^3-x^2)+(2x-2)}


Taking x^2 common from first two terms of denominator and 2 from next two terms


= \frac{x^2+2x-x-2}{x^2(x-1)+2(x-1)}


Now,taking x common from first two terms of numerator and -1 from next two terms and in denominator taking(x-1) common from both terms


= \frac{ x(x+2)-1(x+2)}{(x-1)(x^2+2)}



=\frac{(x+2)(x-1)}{(x-1)(x^2+2)}


Now cancel out x-1 from both numerator and denominator we get


=\frac {x+2}{x^2+2} is the required simplest form.



7 0
2 years ago
Homework help!!!!!!!
GREYUIT [131]

Answer:

r = -9

Step-by-step explanation:

the less the negative number is the more it is .

7 0
2 years ago
What is 6 +0.2 + 0.09 written in standard form? A 0.629 B 6.029 C 6.209 D 6.29<br>​
Free_Kalibri [48]

Answer:

D

Step-by-step explanation:

<u>The answer is D</u>. 6 is the whole number with no decimal after it so it goes before the decimal. Then we add the numbers after the decimal. 0.2 is the same as 0.20 so we add 0.20 plus 0.09 which gets us 0.29. Lastly, we add this all together and get a total of 6.29. Hope this helps!

5 0
2 years ago
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