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Ira Lisetskai [31]
3 years ago
13

Using the equation y = 3x – 5, what would the output be for an input of 4

Mathematics
2 answers:
SSSSS [86.1K]3 years ago
8 0
The input is the x-coordinate and the output is the y-coordinate. If the input is 4, plug 4 into the x variable to find the output, y.

y=3(4)-5
y=12-5
y=7

The output is 7.
blagie [28]3 years ago
7 0

Answer:

output(y)=7

Step-by-step explanation:

y=3(4)-5

<=> y= 12-5

<=> y= 7

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Three friends each have some ribbon. Carol has 54 inches of ribbon, Tino has 7.5 feet of ribbon, and Baxter has 3.5 yards of rib
Nastasia [14]
1 ft = 12 inches......1 yd = 36 inches

carol has 54 inches
Tino has 7.5 ft......7.5 * 12 = 90 inches
baxter has 3.5 yds......3.5 * 36 = 126 inches
for a total of : (54 + 90 + 126) = 270 inches total <===

1 ft = 12 inches....so 270 inches = 270/12 = 22.5 ft <==
1 yd = 36 inches..so 270 inches = 270/36 = 7.5 yds <==
5 0
3 years ago
A marketing research company records the consumer habits of a sample of 42 families from a certain community. The table below su
postnew [5]

Answer:

The mean is 28.3 or 28

I added it all and then divided it by how many different numbers there were.

3 0
3 years ago
Please help for 18 n 19
Hitman42 [59]
18. \ \ \frac{-1}{x-9}- \frac{-2}{x+7}= \frac{-1(x+7)+2(x-9)}{(x-9)(x+7)}= \frac{-x-7+2x-18}{(x-9)(x+7)}= \frac{x-25}{(x-9)(x+7)}


\frac{2}{x}+ \frac{12}{x}=7 \\    \\  \frac{14}{x} =7 \\  \\ x= \frac{14}{7} \\  \\ x=2
7 0
3 years ago
Give an algebraic example of the distributive property
dem82 [27]
A very simple example is:

x(a+b) = (x)(a)   + (x)(b) \\~\\~~~~~~~~~~~=xa+xb

What you need to is just distribute x into the parenthesis, so once x times the first term (a) and once x times the second term (b)





I hope you got the idea



3 0
4 years ago
Please simplify this with explanation <br> -10+4(2b+2)=
AleksandrR [38]

Answer:

2(4b-1)

Step-by-step explanation:

1. You would have to distribute first. So basically you just multiply 4 · 2b which gives you 8b and then 4 · 2

Answer to first step: -10+8b+8

2. Add the numbers. It should be -10 + 8 which would give you -2

Answer to second step: -2 + 8b

3. Rearranging the terms. So, instead of doing -2 + 8b you would have to do 8b - 2

Answer to third step: 8b - 2

4. 2(4b - 1) Find what times what gives you 8 (not 1 times 8) and the same for -2

Hope this helped!

6 0
3 years ago
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