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Drupady [299]
3 years ago
5

Can someone help me with number 18 and explain how to do it please.

Mathematics
1 answer:
Olegator [25]3 years ago
7 0

Answer:

its 380

(TRUST ME)

Step-by-step explanation:

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PLEASE, PLEASE, PLEASE HELP ME ITS URGENT AND I WILL GIVE BRAINLIEST TO THE FIRST CORRECT ANSWER. I HAVE A TEST TOMORROW.
Leno4ka [110]

Answer:

Step-by-step explanation:

let number of adult tickets=x

and number of student tickets=y

x+y=137   ...(1)

8x+6y=952

divide by 2

4x+3y=476   ...(2)

multiply by 3

3x+3y=411   ....(3)

(2)-(3) gives

x=65

y=137-65=72

number of adult tickets=65

number of student tickets=72

2.

let number of rose flowers =x

and number of carnation flowers=y

x+y=264

y=264-x

3.50 x+2.50y=772

multiply by 2

7x+5y=1544

7 x+5(264-x)=1544

7 x+1320-5 x=1544

2 x=1544-1320

2 x=224

x=112

y=264-112=152

number of rose flowers=112

number of carnation flowers=152

8 0
4 years ago
Who is the president of Uganda​
VLD [36.1K]
<h2>Who is the president of Uganda? </h2>

Answer: <u>Yow</u><u>e</u><u>ri </u><u>Museveni</u>

<h3>☆彡Hanna</h3>
6 0
3 years ago
Read 2 more answers
Select the correct answer.
Paladinen [302]

Answer:

D

Step-by-step explanation:

2x^2+16x-8=0

Simplify:

x^2+8x=4

Rewrite in the form (x+a)^2=b:

x^2+8x=4

Add 4^2 to both sides:

x^2+8x+4^2=4+4^2

x^2+8x+4^2=20

\left(x+4\right)^2=20

x+4=\sqrt{20} or x+4=-\sqrt{20}

x = -4±\sqrt{20}

x= -4±2\sqrt{5}

8 0
3 years ago
Read 2 more answers
For the function, the vertex of the function's graph is given. Find the unknown coefficients.
olga2289 [7]

\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{1}x^2\stackrel{\stackrel{b}{\downarrow }}{+b}x\stackrel{\stackrel{c}{\downarrow }}{+c} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right)~~=~~(-2,4) \\\\[-0.35em] ~\dotfill\\\\ -\cfrac{b}{2a}=-2\implies -\cfrac{b}{2(1)}=-2\implies -b=-4\implies \boxed{b=4} \\\\[-0.35em] ~\dotfill


\bf c-\cfrac{ b^2}{4 a}=4\implies c-\cfrac{\boxed{4}^2}{4(1)}=4\implies c-\cfrac{16}{4}=4 \\\\\\ c-4=4\implies \boxed{c=8} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill y=x^2+4x+8~\hfill

7 0
3 years ago
How many times smaller will a number become if is it decreased by 20%?
stealth61 [152]

Answer:

Step-by-step explanation:

I'm unsure why my answer was deleted, randomly deleted a thoroughly explained answer.

20% is 20/100, 1/5, or 0.2

The number will decrease by a factor of 5.

3 0
3 years ago
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