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qwelly [4]
2 years ago
8

Need help on this almost done

Mathematics
1 answer:
Margarita [4]2 years ago
5 0

Step-by-step explanation:

As shown in the picture, 3(x + 7) = (x + 7) + (2x - 7) + x.

So 3x + 21 = 4x. This means that x = 21.

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Which equation has infinitely many solutions?
Verdich [7]

Answer:

The second option (5x+14-4x=23+x-9)

Step-by-step explanation:

For an equation to have infinitely many solutions each side must be exactly the same when simplified.

12+4x=6x+10-2x

Combine alike terms.

12+4x=4x+10

Subtract 4x from each side

12=10

This is not true so this equation has no solutions.

5x+14-4x=23+x-9

Combine alike terms

x+14=14+x

subtract x from each side

14=14

This is true so this equation has infinitely many solutions.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

5 0
3 years ago
Read 2 more answers
An architect drew the blueprint for a new office building. He used a scale in which 1 inch represents 7.5 feet. The floor of an
VMariaS [17]
We know that
scale factor=1 in/7.5 ft
scale factor=measurements   on the blueprint/measurements <span> in the actual
</span>measurements on the blueprint=[measurements  in the actual*scale factor]
so

for 18 ft
measurements on the blueprint=[18 ft*(1 in/7.5 ft)-----> 2.4 in

for 16 ft
measurements on the blueprint=[16 ft*(1 in/7.5 ft)-----> 2.1 in

the dimensions on the blueprint are
2.4 in x 2.1 in
7 0
3 years ago
Find the mode of this data set:<br> 31, 30, 32, 31, 30, 31, 32,<br> 33, 30, 31, 31, 30, 32
MariettaO [177]

Answer:

31 is the mode of the data as it appears 5 times

4 0
2 years ago
HELP I HAVE 5 MIN TO TURN THIS IN
tekilochka [14]
Is there supposed to be a photo?
4 0
2 years ago
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Please find the surface area.
nevsk [136]

Answer:

multiply the givens. use a calculator

7 0
3 years ago
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