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3 years ago

12

Alice has eight good behavior stars and earns a new one each week. Mack has two good behavior stars and earns two new ones each

week. In how many weeks will they have the same number of good behavior stars?

2 answers:

Leona [35]3 years ago

6 0

Answer:

7 weeks

Step-by-step explanation:

Week 1 A - 8 M - 2

Week 2 A - 9 M - 4

Week 3 A - 10 M - 6

Week 4 A - 11 M - 8

Week 5 A - 12 M - 10

Week 6 A - 13 M - 12

Week 7 A - 14 M - 14

Andrei [34K]3 years ago

6 0

Answer:

7 weeks

Step-by-step explanation:

i am not for sure though. hope it helps anyway:)

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gtnhenbr [62]

Answer:

1124

Step-by-step explanation:

1323

5 0

3 years ago

The mass of a radioactive element at time x is given by the equation below, where c is the original mass and h is the half-life

krek1111 [17]

$\bf M(x)=c(0.5)^{\frac{x}{h}}\implies 10=36(0.5)^{\frac{x}{4.9}}\implies \cfrac{10}{36}=0.5^{\frac{x}{4.9}}
\\\\\\
\cfrac{5}{18}=0.5^{\frac{x}{4.9}}\implies log\left( \frac{5}{18} \right)=log\left( 0.5^{\frac{x}{4.9}} \right)
\\\\\\
log\left( \frac{5}{18} \right)={\frac{x}{4.9}}\cdot log\left( 0.5 \right)\implies 
\cfrac{4.9\cdot log\left( \frac{5}{18} \right)}{log(0.5)}=x$

5 0

3 years ago

HELP EDCITEE !! PLEASE !!!

Mariana [72]

Answer:

75.3074525 dgrees

Step-by-step explanation:

law of sines

29/sin(115 degrees) = 13/sin(B)

==> B = 0.418374736 rad

or 75.3074525 dgrees

3 0

3 years ago

Between which two integers does √11 lie? and √8 lie? Step by step explanation please

sukhopar [10]

Answer:

2 and 4

Step-by-step explanation:

Consider a perfect square smaller than 8 and a perfect square larger than 11

That is 4 and 16, then

$\sqrt{4}$ < $\sqrt{8}$ and $\sqrt{11}$ < $\sqrt{16}$ , that is

2 and 4

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3 years ago

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nadya68 [22]

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3 years ago