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3 years ago

Anna and Bobie joined two different swimming classes at the same time.

Mathematics

2 answers:

Black_prince [1.1K]3 years ago

7 0

Answer: It would be 10 months for the price of $320.

Step-by-step explanation:

jeyben [28]3 years ago

6 0

Answer:

It would be 10 months for the price of $320.

Step-by-step explanation:

First we need to find how much Anna's swimming charge and Bobie's charge is.

PA=70+t The price of the month equals to the starting fee and monthly charge

120=70+2t The price of 2 months times the monthly charge

50=2t

25=t is Anna's monthly charge

PB=250+t is Bobies starting price and monthly charge

264=250+2t is the month charge for Bobie after 2 months

14=2t

7=t is Bobie's monthly charge

70+25x=250+7x We need to find x which is what month will satisfy both equations

25x=180+7x Subtract 70 from both sides

18x=180 Subtract 7x from both sides

x=10 divide 18 from both sides

Now we have the months that satisfy both equations we need to find the total price that matches with it. So we plug it back into both equations.

PA=70+25x PB=250+7x

PA=70+25(10) PB=250+7(10)

PA=70+250 PB=250+70

PA=320 PB=320

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3 years ago

A train left for London, and after 9 hours later, a car traveling 80 miles per hour tried catching up to the train. After 3 hour

morpeh [17]

Answer:

20 miles per hour

Step-by-step explanation:

Given that the train left for London, and after 9 hours later, a car traveling 80 miles per hour tried catching up to the train. After 3 hours, the car caught up

Which means that the car travelled the same distance in 3 hours as the train travelled in 9 + 3 = 12 hours

Let the distance be d

Given the speed of car is 80 miles per hour

We know that $speed=\frac{distance }{time}$

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7 0

3 years ago

100 pens cost x dollars. how many pens can be purchased for 50 cents, assuming the same rate?

Tanzania [10]

100 pens cost x dollars.
Therefore 1 pen costs
x/100 dollars/pen

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(0.5 dollars) / (x/100 dollars/pen)
= 50/x dollars

Answer: 50 cents can purchase 50/x pens

5 0

3 years ago

Select the correct answer from each drop-down menu. Consider the following equation. 3= 2-5 + 4 If the equation is solved using

WINSTONCH [101]

Answer:

1 iteration: x =

5/4

2 iteration: x =

11/8

3 iteration: x =

21/16

Step-by-step explanation: