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3 years ago

81 is 45% of what number

Mathematics

1 answer:

andrew-mc [135]3 years ago

8 0

81 is 45% of 180, all you do is divide 81 by .45 and boom there you go

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Ralph paid 660 for a camera at a 60% off sale. What was the original price of the camera?

NNADVOKAT [17]

60% divided by 6 = 10%
660 divided by 6 =110
10% x 10 = 100%
110 x 10 = 1100

7 0

2 years ago

What is speed of sound in air at 100 degree celcius?

Ad libitum [116K]

Answer:

386m/s is the answer to your question

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2 years ago

Rhonda had $300 to buy supplies for the animal shelter. She bought 8 bags of dog food and 11 leashes. Each bag of food cost $25.

Readme [11.4K]

Answer:

47.33

Step-by-step explanation:

Hey there! I'm happy to help!

We have 8 bags of dog food and each costs $25.19

8(25.19)=201.52

And we have 11 leashes each costing $4.65.

11(4.65)=51.15

We add these totals up.

201.52+51.15=252.67

We subtract this from 300 to see how much is left.

300-252.67=47.33

Rhonda had $47.33 left after her purchases.

Have a wonderful day! :D

3 0

3 years ago

Write your answer with no space and any fraction with “/“

nirvana33 [79]

Answer:

y+3=2(x-1)

Step-by-step explanation:

Point-slope form is $y-y_1 = m (x-x_1)$ . In order to write a linear equation using this form, the $y_1$ , $x_1$ and $m$ must be substituted by real numbers.

The $m$ represents the slope of the equation. We know that the answer has to be parallel to the line y=2x-1. y=2x-1 is already in slope-intercept form, or $y=mx+b$ , in which $m$ represents the slope. We can see that the $2$ is in place of that $m$ , therefore 2 is the slope of y=2x-1. Lines that are parallel have the same slope, so we know that the slope of the new equation must be 2 as well.

The $x_1$ and $y_1$ represent the x and y values of one point that the line passes through. We know that the new equation must pass through the point (1, -3), so we'll substitute 1 in place of the $x_1$ and -3 in place of the $y_1$ .

Substituting for those three values will give you an equation like this, therefore it is the answer:

$y-(-3)= 2(x-(1))$

$y+3= 2(x-1)$

4 0

2 years ago

A bird catches a fish flies 100 yards upward in a straight line and then drops the fish the fish Atlanta at a spot that is 50 ya

labwork [276]

Cos(x) = 50/100

part a) x= 60°
<span>part b) height is 86.60254040</span>

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3 years ago