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3 years ago

Write a question that matches this equation: 45-n=15

Mathematics

1 answer:

Alja [10]3 years ago

6 0

Answer:

ayla had 45 cupcakes for the class jayla gave a number out to the cladd Jayla took 15 cupcakes back home what is the does n equal to

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Need help immediately!!!!!!!

Arisa [49]

Answer:

The rate of change/slope is constant, when you calculate it for this problem, it doesn't change for any amount of marbles listed in the table

5 0

3 years ago

Andrew is about to leave for school. If he walks at a speed of 50 meters per minute, he will arrive 3 minutes after the bell rin

Mariana [72]

Answer:

The answer is: 13 minutes

Step-by-step explanation:

First Let us form equations with the statements in the two scenario

$time=\frac{distance}{speed}$

Let the time in which the bell rings be 'x'

1. If Andrew walks (50 meters/minute), he arrives 3 minutes after the bell rings. Therefore the time of arrival at this speed = (3 + x) minutes

$3 + x =\frac{distance}{50}\\distance = 50(3+x) - - - - - (1)$

2. If Andrew runs (80 meters/minute), he arrives 3 minutes before the bell rings. Therefore the time taken to travel the distance = (x - 3) minutes

$x - 3 = \frac{distance}{80} \\distance = 80(x-3) - - - - - (2)$

In both cases, the same distance is travelled, therefore, equation (1) = equation (2)

$50(3+x)=80(x-3)$

$150 +50x=80x-240\\$

Next, collecting like terms:

$150 + 240 = 80x - 50x\\390 = 30x\\30x = 390\\$

dividing both sides by 3:

x = 390÷30 = 13

∴ x = 13 minutes

7 0

3 years ago

Any one know geometry please help me out

MA_775_DIABLO [31]

Answer:

X = 4

Step-by-step explanation:

And then the nearest tenth would be 0

cause all numbers that have 4 round to like 0 or the tenth under it. If it has a five or higher it rounds to 10 or the number above it

7 0

2 years ago

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Otrada [13]

The equation is:
y = 10 sin(π/15 t) + 30
where 30 represents the initial height of the blade above the ground and π/15 represents the period as we are given that the blade completes two rotation every minute.Finally the 10 represents the length of the blades.

Hope this helps :)

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3 years ago

A coordinate grid with 2 lines. The first line passes through (0, negative 5) and (negative 5, 0). The second line passes throug

myrzilka [38]

Answer: (0,-5)

Step-by-step explanation:

7 0

3 years ago

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