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seropon [69]
3 years ago
5

Wilma and Betty are playing a number game. Wilma tells Betty, "I'm thinking of a number between 1 and 10. If I take the number a

nd add 4 to it and then multiply that by 3, I get 30." What number is Wilma thinking of?
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
8 0
Just work this problem out backwards. First write out an equation.
(x+4)•3=30

Now solve :

(x+4)•3=30

3x+12=30
-12   -12

3x=18
/3   /3

x=6

Your answer is 6!

Hoped I helped!
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The answer is (2,-2)

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(-5,3); m=2<br> What is point slope formula
ch4aika [34]

Answer:

y = 2x + 13

Step-by-step explanation:

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3 years ago
Greg's long jump measured 5 2/3 feet. Peter's long jump measured 6 3/4 feet. How many feet did the two boys jump altogether?
Len [333]

Answer:

12.41 or 12 5/12

Step-by-step explanation:

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5 0
2 years ago
Hector is flying a kite. He has let out 86 feet
Kaylis [27]

Answer:

Hector's kite is 61.84 feet from the ground.

Step-by-step explanation:

The angle of elevation of the kite is 42°15’30” when converted to decimals, it is 42.258333^{0} ≅ 42.26^{0}

Let the height of the kite to the horizontal of angle of elevation be represented as x. Applying the trigonometric function to the sketch of Hector's kite,

Sin θ = \frac{opposite}{hypotenus}

Sin 42.26^{0} = \frac{x}{86}

⇒ x = 86 x Sin 42.26^{0}

      = 86 x 0.6725

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x ≅ 57.84 feet

The height of Hector's kite from the ground = x + 4

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7 0
3 years ago
Determine whether each of the following sequences are arithmetic, geometric or neither. If arithmetic, state the common differen
PilotLPTM [1.2K]

\qquad\qquad\huge\underline{{\sf Answer}}

\textbf{Let's see if the sequence is Arithmetic or Geometric :}

\textsf{If the ratio between successive terms is } \textsf{equal then, the terms are in GP}

  • \sf{ \dfrac{12}{-4} = -3}

  • \sf{ \dfrac{-36}{12} = -3}

\textsf{Since the common ratio is same, } \textsf{we can infer that it's a geometric progression} \textsf{with common ratio of -3}

3 0
2 years ago
Read 2 more answers
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