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ollegr [7]
3 years ago
13

Abby has x dolls. Lauren has 9 times as many as Abby. Betsy has 7 fewer than Lauren. How many dolls do they have in all?

Mathematics
2 answers:
abruzzese [7]3 years ago
7 0
X+9x+(9x-7) or 19x-7
makkiz [27]3 years ago
5 0

Answer: x + 9x + (9x - 7)

Simplified: 19x - 7

Step-by-step explanation: We see that Abby already starts off with x dolls. We put a 9 infront of the x for the second part of the expression because Lauren has 9 times as many dolls as Abby. Since Betsy has 7 less than Lauren, we take away 7 from 9x. We put that part in parenthesis because that part needs to be done first before we add everything together. Once simplified, we have "19x - 7". (I really tried my best so I hope this is the correct answer!)

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The circumference of a circular hot tub at a hotel is 56.5 yards. What is the diameter of the hot tub?
Scorpion4ik [409]

c = 2\pi \times r \\ 56.5 \div 2 = \pi \times r \\ 28.25 \div \pi = r \\ 9 = r \: then \:  \times 2 = d \:  \\ diameter \: is \: 18
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Which answer best describes (n k)
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4 years ago
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Which calculation and answer show how to convert 3/12 to a decimal<br> Plz help ASAP
DedPeter [7]

Answer:

Its C

Step-by-step explanation:

It is C becuase when converting a fraction to a decimal, you just divide the numerator by the denominator

Basically solve the fraction

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Or you can always look it like this

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the “/“ between is basically ”divided by”

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6 0
3 years ago
Samantha is solving a
Licemer1 [7]
the correct answer for this problem: x= -1/3y + 2

Let’s solve for x
3x + y= 6

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5 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
alex41 [277]

the correct answer should be (b) 6 is extraneous.

If you look at the second row of the solution you see (x-6) as a factor in one of the denominators. That's a problem: if 6 were a solution this denominator would become 0. But denominators being 0 is bad (undefined), so while 6 comes out of the algebraic manipulation as a solution, it is invalid, or extraneous.

-3 is a fine solution.

6 0
3 years ago
Read 2 more answers
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