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victus00 [196]
3 years ago
15

Explain all answers step by step or I will report u please help worth 10

Mathematics
1 answer:
insens350 [35]3 years ago
5 0
$3.25-25% = $2.45
All u do is minus .25% From current b$ amount. And round up cents p
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7. Is it proportional?
SCORPION-xisa [38]

Answer:

A unit rate is the rate of change in a relationship where the rate is per 1.

The rate of change is the ratio between the x and y (or input and output) values in a relationship.  Another term for the rate of change for proportional relationships is the constant of proportionality.

If the rate of change is yx, then so is the constant of proportionality.  To simplify things, we set  yx=k, where k represents the constant of proportionality.  

If you solve a yx=k equation for y, (like this: y=kx), it is called a direct variation equation. In a direct variation equation, y varies directly with x. When x increases or decreases, y also increases or decreases by the same proportion.

To find y in a direct variation equation, multiply x by the constant of proportionality, k.

For example: Given the relationship y=7x, the constant of proportionality k=7,  so if x=3,  then y=3×7 or 21.

Given the same relationship, if x=7,  then y=7×7, or 49.  

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is the common denominator between 3/8 and 1/2
Nimfa-mama [501]

1/2 = 4/8

3/8 = 3/8

8 is the common denominator between these two fractions

4 0
3 years ago
What is 3w(2+4x-5+y)
Mkey [24]

Answer:

-9w+12wx+3wy

Step-by-step explanation:

just distribute 3w through the parentheses

3 0
2 years ago
Paige launched a ball using a catapult she built. The height of the ball (in meters above the ground) ttt seconds after launch i
agasfer [191]

Answer:

1) Factor form : h(t)=-5t(t-8)

2) 8 second after launch.

Step-by-step explanation:

The height of the ball (in meters above the ground) t seconds after launch is modeled by

h(t)=-5t^2+40t

To find the time when ball hit the ground, we need to find the factor form of the given function.

h(t)=-5t(t-8)

When ball hi the ground, then height of the ball from the ground is 0.

h(t)=0

-5t(t-8)=0

Using zero product property, we get

-5t=0\Rightarrow t=0

t-8=0\Rightarrow t=8

Ball hit the ground at t=0 and t=8. It means ball hit the ground in starting and 8 second after launch.

5 0
3 years ago
Simplify the expression 1/4n(-24+8m-100p)
Mnenie [13.5K]
The answer would be -6n+2mn-25pn
3 0
3 years ago
Read 2 more answers
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