2 years ago

Q2. Admission to a carnival is $8.00. You allow $5.00 for lunch and $3.00 for a snack. Each ride is $2.50.

Mathematics

1 answer:

In-s [12.5K]2 years ago

6 0

You can go on 9 rides, and will have $1.50 left over.
you can make 13 phone calls, and will have $0.15 left over

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This was given to me during a summative test and the teacher didn't bother giving me the correction. I just cannot figure it out

Dmitry [639]

Base be y

ATQ

$\\ \sf\longmapsto xy=6050\dots 1$

$\\ \sf\longmapsto 2(x+y)=220\implies x+y=110\dots 2$

Now

$\\ \sf\longmapsto (x+y)^2=x^2+y^2+2xy$

$\\ \sf\longmapsto 110^2-2(6050)=x^2+y^2$

$\\ \sf\longmapsto 12100-12100=x^2+y^2$

$\\ \sf\longmapsto x^2+y^2=0\dots(3)$

From all equations

$\\ \sf\longmapsto (x-y)^2=x^2+y^2-2xy$

$\\ \sf\longmapsto (x-y)^2=0-2(6050)$

$\\ \sf\longmapsto (x-y)^2=-12100$

$\\ \sf\longmapsto (x-y)=110\dots(4)$

Now

Adding 3 and 4

$\\ \sf\longmapsto 2x=220$

$\\ \sf\longmapsto x=110m$

One side won't be covered hence

y=2(110)=220m

7 0

2 years ago

Read 2 more answers

Sophia scored 92% in a math test. If the test had 50 questions, how many did she get right? *

zloy xaker [14]

Answer:

46 questions correct

Step-by-step explanation:

100% = 50 questions
2% = 1 question
92% = 46 questions

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2 years ago

Is 2750 a reasonable answer for 917 times 33

hodyreva [135]

No because 917 times 33 is 30261

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2 years ago

Please Help!! I WILL MARK BRAINLIEST

victus00 [196]

Answer:

f-¹(x) = 2x – 8

f-¹(4) = 2(4) – 8 —> f-¹(4)= 8 - 8 =0

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2 years ago

If r = 6 units and h = 13 units, what is the volume of the cylinder

Andrews [41]

Answer:

v=1460.26536188 units^3

Step-by-step explanation:

Volume for a cylinder is:

V=πr^2h

Substitute 6 in for r and 13 in for h

V=π(6^2)(13)

V=π(36)(13)

V=π468

v=1460.26536188 units^3

Hope this helps! :)

6 0

2 years ago