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jok3333 [9.3K]
3 years ago
5

4. A school is conducting a fundraiser by selling sweatshirts. The school marks op the price

Mathematics
1 answer:
Crank3 years ago
4 0
20*.4= 8
(20 as the original price, .4 is 40% as a decimal)
20+8
(eight being 40% of 20)
$28 is the new price.
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What does it mean?How to do them?
Aneli [31]
The signs mean greater than, less than or equal. 
5 0
3 years ago
It has long been reported that human body temperature follows a normal distribution with a mean of 98.6 degrees Fahrenheit. Ther
Kay [80]

Solution :

The normal body temperature of any human body is considered to be 98.6$^\circ \ F$. But there is a constant debate about the body temperature of a long held standard to the body temperature.

It is given that :

Null hypothesis and alternate hypothesis :

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n is given as = 180

Test statistics = 3.64

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7 0
3 years ago
A tree that is 4 ft tall is growing at a rate of 1 ft each year a tree that is 12 feet tall is growing at a rate of 1/2 ft each
Andreyy89

Answer:

16 years

Step-by-step explanation:

Given data

For the first tree

let the expression for the height be

y=4+x--------------1

where y= the total height

          4= the initial height

          x= the number of years

For the second tree, the expression is

y=12+0.5x-------------2

Equate 1 and 2

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5 0
3 years ago
LET me know how you got the answer
andre [41]

6/2*3 / 3(3)

First simplify the numerator: 6/2*3 = 3*3 = 9

Next simplify the denominator: 3(3) = 3*3 = 9

So you have 9/9, which equals 1.


The 3rd answer is correct.

6 0
3 years ago
Read 2 more answers
What is the value of y in the equation 5x + 2y = 20, when x = 0.3?
Sauron [17]
5x+2y=20 when x=3/10 is:

5(3/10)+2y=20

15/10+2y=20

1.5+2y=20

2y=18.5

y=9.25
8 0
3 years ago
Read 2 more answers
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