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elixir [45]
3 years ago
9

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:
abruzzese [7]3 years ago
4 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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Solve this equation: 80 = 3y + 2y + 4 + 1.
Verdich [7]
Let us first write down the given equation.
80 = 3y + 2y + 4 + 1
80 = 5y + 5
80 - 5 = 5y
75 = 5y
Just reversing both sides we get
5y = 75
Now dividing both sides by 5 we get
y = 15
So the value of y is 15. I hope the procedure for solving the problem is clear to you. In future you can solve such problems with ease following the procedure described.



6 0
3 years ago
Read 2 more answers
-5y y=-2 -3x 6y=-12 substitution
IrinaK [193]
The answer would be x=4 and y=-2.
5 0
3 years ago
William and his puppy Rover are out for a morning jog at a comfortable pace of 10 minutes per mile. If they keep up this pace fo
mojhsa [17]

Answer:

12 miles

Step-by-step explanation:

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8 0
3 years ago
4 to the power of 55
LenaWriter [7]

\\ \sf\longmapsto 4^{55}

\\ \sf\longmapsto (4^5)^{11}

\\ \sf\longmapsto 1024^{11}

\\ \sf\longmapsto 1024^31024^41024^3

\\ \sf\longmapsto 1,073,741,824\times 1,073,741,824\times 1,099,511,627,776

\\ \sf\longmapsto 1.29807421E+33

6 0
3 years ago
40+40x0+1=<br> a.81<br> b.21<br> c.41
inn [45]

Answer:

C.41

Step-by-step explanation:

Thats the answer!!

5 0
3 years ago
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