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mixas84 [53]
3 years ago
6

Beth sold half of her comic books and then bought nine more. She now has 28.

Mathematics
1 answer:
sleet_krkn [62]3 years ago
4 0

Answer:

38

Step-by-step explanation:

28-9=19

19x2=38

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Please explain how to get the answer
meriva
Q must be positive in F.

F. r squared will be positive, because any number times itself is positive, and to get a positive number for the answer, the two numbers you multiply need to be the same sign. If r squared is positive, q must be too. 

G. q does not have to be positive. If r is a negative number, then q can be negative. Say q=-2 and r=-3. -2-(-3) changes to -2+3, which equals 1.

H. Again, q can be negative if r is negative (two negative numbers multiplied together equals a positive answer.

J. q can be negative because even a negative number turns positive when squared.

Hope this helped you. :)

8 0
3 years ago
the weight M of an object on Mars varies directly as it’s weight E on Earth. A person who weighs 95 lb on Earth weighs 38 lb on
lorasvet [3.4K]

Answer:

A 100 lb person will weight 40 lb on Mars

Step-by-step explanation:

Given:

Weight on Mars directly varies as its weight on earth.

Let weight on Mars be = M

Let weight on Earth be = E

Its known that:

M ∝ E

Thus

M=kE

where k is constant of proportionality.

when  E=95\ lb, then M=38\ lb

thus, we have

38=k(95)

dividing both sides by 95.

\frac{38}{95}=\frac{k(95)}{95}

∴ k=\frac{38}{95}

Thus when E= 100, M would be calculated as

M=\frac{38}{95}\times 100

M=\frac{3800}{95}

∴ M=40\ lb  (Answer)

∴ A 100 lb person will weight 40 lb on Mars.

8 0
3 years ago
Find the missing angle measure.<br><br> m
Alexeev081 [22]

Answer:43 degrees

Step-by-step explanation: 47+90=137 and 180-137= 43

5 0
2 years ago
Read 2 more answers
Ashston is saving money to buy a new bike, He needs $120 but has only saved 60% so far. How much more money does he need to buy
gulaghasi [49]
It’s most likely half of it
8 0
3 years ago
Can someone please help?
n200080 [17]

Answer:    9. Is yes 2 grams of protein; per 1 cup of serving    10. Is no, because 30 + 30 is 60 and not 32 + 28 because 32 + 28 isn't proportional, also i love bokuaka

Step-by-step explanation:

4 0
3 years ago
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