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SpyIntel [72]
3 years ago
14

100 its + brainliest Halp! plz dont take points this isn't free :(((( plz answer em'

Mathematics
2 answers:
dlinn [17]3 years ago
8 0

Answer:

For #1, system of equations is 3m + 2c = 52, 4c + 3m = 68. m is the cost of one movie, c is the cost of one CD.  One CD costs $8, one movie costs $12.

For #2, The cost of one burger and one hotdog is b = 0.75, h = 0.90. 4 burgers would be $3, 4 hotdogs would be $3.60.

For #3 the answer is 19:30, Horatio has 30 games, Preston has 19.

I can't get number 4, srry

Step-by-step explanation:

netineya [11]3 years ago
7 0

Answer:

System of equations is 3m + 2c = 52, 4c + 3m = 68. m is the cost of one movie, c is the cost of one CD.  One CD costs $8, one movie costs $12.

  The cost of one burger and one hotdog is b = 0.75, h = 0.90. 4 burgers would be $3, 4 hotdogs would be $3.60.

ANswer is 19:30, Horatio has 30 games, Preston has 19.

Step-by-step explanation:

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andreev551 [17]

u multiply each number with the number diagonal to it!

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7 0
4 years ago
If u = <-7, 6> and v = <-4, 17>, which vector can be added to u + 3v to get the unit vector <1, 0> as the resu
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
F=f (1-v/s) change the subject of the formula into v
Artyom0805 [142]
Changing the subject of the formula into v means expressing v in terms of the other given variables. So given the original equation, as shown below, we can rearrange it so that we have v isolated on one side.

F = f(1 - \frac{v}{s})
\frac{F}{f} = 1 - \frac{v}{s}
\frac{v}{s} = 1 - \frac{F}{f}

To isolate v, we can just multiply s to both sides and come up with the final equation below.

v = s(1 - \frac{F}{f})

Thus, we have v = s(1 - F/f) with v as the subject of the formula.

Answer: v = s(1 - F/f)
8 0
3 years ago
Whats balance fe+30^2 >fe^2O^3
blsea [12.9K]

Answer:

You are given:

4Fe+3O_2 -> 2Fe_2O_3

4:Fe:4

6:O_2:6

You actually have the same number of Fe on both sides, The same is true for O_2 so yes this equation is properly balanced.

For added benefit consider the following equation:

CH_4+O_2-> CO_2+2H_2O

ASK: Is this equation balanced? Quick answer: No

ASK: So how do we know and how do we then balance it?

DO: Count the number of each atom type you have on each side of the equation:

1:C:1

4:H:4

2:O:4

As you can see everything is balanced except for O To balance O we can simply add a coefficient of 2 in front of O_2 on the left side which would result in 4 O atoms:

CH_4+color(red)(2)O_2-> CO_2+2H_2O

1:C:1

4:H:4

4:O:4

Everything is now balanced.

Step-by-step explanation:

5 0
3 years ago
Explain how to convert 6 feet into meters.
SCORPION-xisa [38]
Its 1.8288 meters use the conversion its equals this plz mark brainlest
7 0
3 years ago
Read 2 more answers
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