2 years ago

Original price 0.75 discount sale price 0.15

Mathematics

1 answer:

Luden [163]2 years ago

7 0

You will pay 0.60 because discount is subtraction to

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What is i^22 if i^2 is -1

Sever21 [200]

I^22 equals to -1 since i^2 is negative one

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2 years ago

find the number of running and passing plays using substitution method 110 plays 3 yards per run 7 yards per pass total yards 37

Zinaida [17]

Let x be the number of running plays

Y be the number of passing plays

Since the total plays is 110

X + y = 110

And total yard is 378

3x + 7y = 378

Using the first equation

X = 110 – y and substitute to the 2nd equation

3(110 – y) + 7y = 378

And solve for y

Y = 12

Substitute to eqution 1

X = 110 – 12 = 98

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2 years ago

The width of a soccer field should be 60% of its length. Write and simplify an expression for the perimeter of a soccer field wi

iogann1982 [59]

Answer:

here you go

Step-by-step explanation:

W = (0.6) L

P = 2 ( L + W )

P = 2 [ L + (0.6) L ]

P = 2 ( 1.6 L )

P = (3.2) L

P = (3.2) x

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2 years ago

If x varies inversely with y and x = 4 when y = 8, find x when y = 16

Jobisdone [24]

I think x=8
8/4 = 2
16/2 = 8

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2 years ago

A red ant travels 9/8 inches in 3/4 minutes and 3 3/8 inches in 2 1/4 minutes what is the ants speed in inches per minute? What

I am Lyosha [343]

Answer:

1. 1.5 inches per minute

2. 90 inches per hour

Step-by-step explanation:

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

1. total distance covered = $\frac{9}{8}$ + $\frac{27}{8}$

= $\frac{9+27}{8}$

= $\frac{36}{8}$

= 4 $\frac{1}{2}$ inches

Total time taken = $\frac{3}{4}$ + $\frac{9}{4}$

= $\frac{3 +9}{4}$

= $\frac{12}{4}$

= 3 minutes

The ants average speed = $\frac{4.5}{3}$

= 1 $\frac{1}{2}$

= 1.5

The ants speed is 1 $\frac{1}{2}$ inches per minute.

2. Since;

60 minutes = 1 hour

3 minutes = x hours

x = $\frac{3}{60}$

= $\frac{1}{60}$

= 0.05 hours

Speed = $\frac{4.5}{0.05}$

= 90 inches per hour

The red ants speed is 90 inches per hour.

3 0

2 years ago