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Pie
3 years ago
11

Sara had some candy in her pocket. She first kept 2 pieces herself and then gave her 5 children 3 pieces each. If she didn't hav

e any candy left over, how many pieces of candy did she start with
Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
5 0

17 pieces. She had two and she had to have 15 to give to the children. If each child got 3 and there is 5. This turns into 3*5=15. Then you would add 15+2 to get 17

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Farmer Brown has 42 animals, which are cows and chickens. They have a total of 120 legs. Write a system of equations, show your
SCORPION-xisa [38]

Answer:

The system of equations is:

x + y = 42

4x + 2y = 120

And there are 24 chickens.

Step-by-step explanation:

We know that the total number of cows (x) plus the total number of chickens (y) is 42, because Farmer Brown has 42 animals.

We also know that cows (x) have 4 legs and so 4 times the number of cows is the number of cow legs. And chickens (y) have 2 legs, so the number of chickens times two represents the total chicken legs. The sum of 4x + 2y is 120 because there are 120 legs in total.

To solve the system of equations, first solve each equation for y.

In the first equation:

x + y = 42

Subtract x from both sides to isolate y.

y = 42 - x

Second equation:

4x + 2y = 120

Subtract 4x from both sides

2y = 120 - 4x

Divide both sides by 2

y = 60 - 2x

Now that the y's are isolated in both equation, you can put them into 1 equation. Where y = y:

y = 42 - x

y = 60 - 2x

42 - x = 60 - 2x

Add 2x to both sides

42 + x = 60

Subtract 42 from both sides

x = 18

Since x is the number of cows, we know that Farmer Brown has 18 cows.

Now we can substitute the x value into one of the equations:

y = 42 - x

y = 42 - (18)

y = 24

The number of chickens is represented by y, so there are 24 chickens.

3 0
2 years ago
What's .60as a fraction in simpolest form
Andreyy89
3/5
.60 is equal to 6/10
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4 0
3 years ago
Simplify the following expression. 6.72 + 0.088
lana [24]
6.808 is the correct answer
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Read 2 more answers
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34 square feet

Explanation:
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18 + 16 = 34

MARK BRAINLIESTT
Please! And thank u, trust me, this is the answer
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The price has changed from $120 to $75. by how many percent did it change?
galina1969 [7]
The answer would be -37.5
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