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erastovalidia [21]
3 years ago
15

Help Literal Equations

Mathematics
1 answer:
Rom4ik [11]3 years ago
8 0
If you are trying to find x it is x=15-y
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PLEASE HELP WILL MARK BRAINLIEST!!(plz show work too)
trapecia [35]

\huge \bf༆ Answer ༄

Let the capacity of bus be x students

And van be y students, now ;

From the given statements we get two equations ~

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:2x + 10y = 260 \:   \:  \:  \: \:  (1)

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:13x + 5y = 670 \:  \:  \:  \:  \: (2)

multiply the equation (2) with 2 [ it won't change the values ]

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:2x + 10y = 260 \: \:  \:  \:   \:  \:  \:  \:  \: (1)

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:26x + 10y = 1340 \:  \:  \:  \:  \: (3)

Now, deduct equation (1) from equation (3)

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:26x + 10y - 2x - 10y = 1340 - 260

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:24x = 1080

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:x = 1080 \div 24

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:x = 45

Therefore each bus can carry (x) = 45 students

Now, plug the value of x in equation (1) to find y ~

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:2x + 10y = 260

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:(2 \times 45) + 10y = 260

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:90 + 10y = 260

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:10y = 260 - 90

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:10y = 170

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:y = 170 \div 10

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:y = 17

Hence, each van can carry (y) = 17 students in total.

5 0
2 years ago
During a sale a store offered a 40% discount on a particular camera that was originally price at $450 after the sale the discoun
Artemon [7]

£378


$450×0.6=$270.

$270×1.4=$378

3 0
3 years ago
ASAP pleASEEEE you would be helping a girl out
Sveta_85 [38]

Step-by-step explanation:

ASAP pleASEEEE you would be helping a girl out

5 0
2 years ago
If someone could explain what i plug into f??
Alexxx [7]
You are correct with part i with what you did so far, but you need to finish it.
What is function f?

i.
\dfrac{f(9) - f(2)}{9 - 2}

ii.
\dfrac{f(1) - f(0)}{1 - 0}

iii.
\dfrac{f(9) - f(-7)}{9 - (-7)}
3 0
2 years ago
Which of the following is NOT equivalent to 22/7?
jasenka [17]

Answer:

the option c is the answer for this question

5 0
2 years ago
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