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labwork [276]
3 years ago
5

To prepare for a party, Mark buys a small bunch of balloons for $4.00 and

Mathematics
1 answer:
kakasveta [241]3 years ago
6 0

Answer:

15

Step-by-step explanation:

4+3.85x=61.75

3.85x=57.75

x=15

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200 milimeters is the answer
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Alex787 [66]

Answer:

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Step-by-step explanation:

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3 years ago
Read 2 more answers
Braceleftzf y = 8/7 x − 2/3 <br> 8/3 x + y = 5/9
givi [52]

Answer:

  (x, y) = (77/240, -3/10)

Step-by-step explanation:

It is convenient to write the equations in standard form.

Multiplying the first equation by 21 gives ...

  21y = 24x -14

Multiplying the second equation by 8 gives ...

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Then the system of equations in standard form is ...

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  • 24x +9y = 5

Subtracting the first from the second, we get ...

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Substituting this into the second equation, we have ...

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  24x = 7.7 . . . . . . . add 27/10

  x = 7.7/24 = 77/240

The solution is (x, y) = (77/240, -3/10).

7 0
3 years ago
Help I tried to do the page but I couldn't
ahrayia [7]
Sarah wanted to share her apple with 3 of her friends , but she only had 1/2 of an apple left. What math problem should she write to figure out how to split her apple. Explain your answer.
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48 notebooks to 14 notebooks
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Set up a x/100 = (14-48)/48 = -34/48 Multiply the cross 48x = -3400 x = 70.8333 so around -70.83% change
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