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creativ13 [48]
3 years ago
14

A number, x, decreased by the sum of 2x and 5 Please show work!!!!!! Thank you!!!!

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
3 0
The number is 3 times the sum of its digits

45 is added = 4+5=9 so,a common numbers in 3rd and 9th table
9,18,27,36,45...

27+45=72

2+7=9
or
<span>4+5=9</span>
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PLZ LOOK AT THE IMAGE AND PLZ TELL ME THE ANSWER I WILL GIVE BRAINLESS
raketka [301]

Answer:

a) Unit price :

  • 12 cupcakes for $29 = $2.42
  • 50 cupcakes for $129 = $2.58

Reasoning:

  • 12 cupcakes for $29 = $29 ÷ 12 cupcakes which gives 2.416666667 and if rounded off gives you $2.42.
  • 50 cupcakes for $129 = $2.58 accurately.

b) 12 cupcakes for $29 gives the lowest unit price as $2.42 is less than $2.58.

<em>I hope this answer will help you !!!!</em>

7 0
3 years ago
Can someone pls help? ab to fail geometry. any help is nice.
Mamont248 [21]
By the law of cosines, the angle C satisfies

8.77^2=2^2+9^2-2\times2\times9\times\cos C

which reduces to

\cos C=0.2246\implies C=\arccos(0.2246)\approx1.34422\text{ rad}

which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
7 0
3 years ago
Consecutive angles in a parallelogram are supplementary. What is the value of x?
Naddika [18.5K]

Step-by-step explanation:

HERE,

\angle{PQR=20+2x  } ⠀

\angle{ QRS=6x } ⠀

we know that,

sum of consecutive angle of a parallelogram =180

so,

According to the question,

\angle{PQR}+\angle{QRS}=180 ⠀

\tt{20+2x+6x=180  } ⠀

\tt{8x+20=180  } ⠀

\tt{8x=180-20  } ⠀

\tt{8x=160  } ⠀

\tt{x=\dfrac{160}{20}  } ⠀

\tt{ x=20 } ⠀

8 0
3 years ago
Na figura, r//s. O valor, em graus, de a+b é: a)180 b) 196 c) 216 d) 240
Nastasia [14]
216. hope this helps you.
4 0
3 years ago
Do y’all understand this question cause I don’t plz help me
Troyanec [42]

Answer:

the answer is 15.

Step-by-step explanation:


7 0
3 years ago
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