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Troyanec [42]
2 years ago
11

Which expression is equivalent to 3 (y - 7?)

Mathematics
2 answers:
Aleksandr [31]2 years ago
7 0
-21+3y (answer D). Distributive property is used
Aloiza [94]2 years ago
3 0

Answer:

-21 + 3y

Step-by-step explanation:

3(y - 7) = 3y - 21 OR -21 + 3y

Hope that helps!

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HELPPP!!!
madam [21]

Answer:

2 and a half @ 2.5 inches (sorry i can't type the fraction)

Step-by-step explanation:

  • english is my second language so sorry if you doesn't understand:

(1/2, 1/4)=(x,y)

based on the graph shown that each grid on the y axis represents 1/4, that is the smallest scale stood in the y axis.

this means 2 grid= 1/4 x 2 = 1/2 @ 0.5 inches.

since the '5 months-hair-length' is above about 2 grid above 2 inch:

2 inch + 0.5 inch= 2.5 inch

4 0
3 years ago
How long would it take franklin to shovel the driveway alone?
motikmotik

Answer:

Time taken by Franklin to shovel alone is 65.5 minutes.

Step-by-step explanation:

Let the time taken by Franklin to shovel alone = x minutes.

Since, the time taken by Angela to shovel = 180 minutes and the time taken by both = 48 minutes.

Then, we have,

Amount of shoveling done in 1 minute by Angela = \frac{1}{180}

Amount of shoveling done in 1 minute by both = \frac{1}{48}

Amount of shoveling done in 1 minute by Franklin= \frac{1}{x}

So, we have,

\frac{1}{180}+\frac{1}{x}=\frac{1}{48}

i.e. \frac{x+180}{180x}=\frac{1}{48}

i.e. 48(x+180)=180x

i.e. 48x+8640=180x

i.e. 132x=8640

i.e. x= 65.5 minutes

Thus, the time taken by Franklin to shovel alone is 65.5 minutes.

7 0
3 years ago
Which of these tables represents a function?
ratelena [41]

Answer:

The answer would be B

Step-by-step explanation:

x-1=y

8 0
3 years ago
Can someone help me??
fomenos

Answer:

35

Step-by-step explanation:

7 0
3 years ago
Kiera wanted to find the approximate number of historical books at the library she works at. She used the computer to randomly t
sveta [45]
The above is an estimation question. Estimation is when you judge the results obtained from a sample and make a rough calculation. The answer obtained might not be exactly right, its based on a judgement.

In this a sample was taken and out of 80 books, 6 of them were history books.
The assumption made then is that for every 80 books taken randomly , 6 of them will be history. Using this assumption ;
21 360 books in the library,
for every 80 books - 6 history books
then for 21 360 books - 6 / 80 * 21360
                                   =  1602 history books
0 0
3 years ago
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