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Digiron [165]
3 years ago
7

Product of 9/10 times 1/2

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
3 0

The product of nine tenths times one half is 0.45, or in fraction form, 9/20.

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2. A boy and his father played 26 games of checkers. For every game the boy lost, he gave his father 5 cents. For every game the
trasher [3.6K]

Answer: the boy won 10 games

Step-by-step explanation:

Let's call B as the number of games won by the boy, and F as the number of games won by the father.

We know that, there is a total of 26 games:

B + F = 26.

We know that in each game won by the boy, he wins 8 cents, for every game that the father wins, the boy losses 5 cents, and we know that at the end of the 26 games, the boy did not win or lose any money, so we have:

B*8 + F*(-5) = 0.

Then we have a system of equations:

B + F = 26

8*B - 5*F = 0.

The first step is isolating one of the variables. Let's start isolating F in the first equation:

B + F = 26

F = 26 - B.

Now we can replace this in the second equation:

8*B - 5*F = 0

8*B - 5*(26 - B) = 0

8*B + 5*B - 5*26 = 0

13*B = 5*26

B = 5*26/13 = 5*2 = 10

So the boy won 10 games (then the father won the other 16 games)

7 0
3 years ago
Eva and her children went into a restaurant and where they sell hotdogs for $5 each and tacos for $2.50 each. Eva has $30 to spe
Tanzania [10]

Answer:

8

Step-by-step explanation:

(dont mind my spelling im bad at that)so seeing that one hot dog is 5 dollors

and two hotdogs would cost 10 dollors and that would leave 20 dollors to spend and seeing that one taco is 2 dollors and 50 cents we need to figure out how many times does 2.50 go into 20 which is 8 so eva can buy 8 tacos along with 2 hot dogs

8 0
3 years ago
Read 2 more answers
Flora has $50 to spend on clothes. She wants to buy a pair of jeans for $20 and spend the rest on t-shirts. Each t-shirt costs $
Grace [21]
X< or = 5....
After the jeans she has $30 remaining. Divide $30 by costs of each shirt...30/6, which equals 5. Meaning she can purchase 5 shirts max, assuming there's no tax.
6 0
4 years ago
Read 2 more answers
In a gymnastics competition, an athlete's final score is found by taking 75% of the average technical score and adding 25% of th
Dmitriy789 [7]

Answer:

5.7 + 2.5/10x ≥ 8

where x is the artistic score

Step-by-step explanation:

if the technical score is 7.6/10 = 76% of 75% = 0.57 out of 10.

there are still 2.5 more points that can be obtained, so the gymnast needs 8 - 5.7 = 2.3 out of 2.5 possible points

the inequality would be:

5.7 + 2.5/10x ≥ 8

where x is the artistic score

2.5/10x ≥ 8 - 5.7

2.5/10x ≥ 2.3

x ≥ (2.3 x 10) / 2.5

x ≥ 9.2

5 0
4 years ago
Which function has the same domain as y = 2 StartRoot x EndRoot
snow_lady [41]
The answer is A. Y=square root of 2x
4 0
4 years ago
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