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vladimir2022 [97]
3 years ago
13

Barkley's team won 40% of their games last season. If they won 12 games total last season, how many games did they play?

Mathematics
2 answers:
satela [25.4K]3 years ago
8 0

Answer:

28

Step-by-step explanation:

stiv31 [10]3 years ago
4 0

Answer:

D. they played 30 games in total

Step-by-step explanation:

By a process of elimination we can determine that D is the answer.

30 is the only answer that gives 12 when multiplied by 0.40

in other words, 12 is 40% of 30

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9^x=1/3<br><br> How much is x?
kumpel [21]

Answer:

x = -1/2

Step-by-step explanation:

This question can be solved by applying the laws of indices

In a^n, a - base

n - index

Given

9^x = 1/3

According to the laws of indices, a/b = b^(-a)

Hence we can write, 1/3 = 3^(-1)

9^x = 3^(2x)

Again according to the laws of indices,

a^b = a^n can be written as;

b = n

That is, if in an equation the bases are the same, the indices are also equal.

So we can write,

3^(2x) = 3^(-1)

2x = -1

Divide both sides of the equation by 2, the coefficient of x

2x/2 = -1/2

x = -1/2

6 0
3 years ago
in june kayla spent all of the $80 she had earned. the difference between her earnings in june and her money remaining from may
docker41 [41]

Answer:

She earned $60

Step-by-step explanation:

Since she had 20 dollars remaining from may, she earned the rest of the money in june so:

80-20=60

7 0
3 years ago
Mark bought a notebook for $1.45 and some pencils for $0.42 each. If the total cost was $6.91, how many pencils did he buy?
Lesechka [4]
B - 13

Okay, we know that Mark brought 1 notebook and the totally is 6.91 while one pencil costs $0.42.

x= number of pencils he brought.
we know the price of 1 notebook + the cost of pencils times the numbers of pencils he brought = total cost.

So the equation will be:

1.45 + 0.42x = 6.91  subtract 1.45 on both sides.
0.42x = 5.46   Then we solve for x by dividing both sides by 0.42
x= 13

So the number of pencils he brought is 13.

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2 years ago
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3 years ago
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