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qaws [65]
3 years ago
6

What is the value of x if 7-9x=10 plz help

Mathematics
2 answers:
NeX [460]3 years ago
7 0
The value of x is 12
Aliun [14]3 years ago
6 0

Answer:

x=-\frac{1}{3}

Step-by-step explanation:

So we are trying to solve for x in the equation 7 - 9x = 10.

7 - 9x = 10

Subtract 7 from both sides.

-9x = 3

Divide both sides by -9.

x = -1/3

So we have found that:

x=-\frac{1}{3}

I hope you find my answer helpful.

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The sum of 4 times a number and 7 more than the number is 80
marusya05 [52]

Answer:

(4×x) 7> 80  :)

Step-by-step explanation:

4 0
2 years ago
*REVERSE PROPORTION*
muminat

9514 1404 393

Answer:

  33.3%

Step-by-step explanation:

The selling price of £42 is (1 +40%) times the total purchase price.

  1.40 × purchase price = £42

  purchase price = £42/1.40 = £30

The total profit is 40% of this, so is ...

  £30 × 40% = £12

The purchase price of the skirt is ...

  total cost - glove cost = skirt cost = £30 -3 = £27

The profit on the skirt is ...

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Then the percentage profit on the skirt is ...

  skirt profit % = skirt profit / skirt cost × 100% = £9/£27 × 100% = 33.3%

The percentage profit on the cost of the skirt was 33.3%.

5 0
3 years ago
1) 130 words in 5 mins. How many words in an hour?
FinnZ [79.3K]

Answer:

Part 1) 1,560 words

Part 2) 161 miles

Step-by-step explanation:

Part 1) 130 words in 5 mins. How many words in an hour?

Remember that

1\ hour=60\ min

so

using proportion

Find out how many words in 60 minutes (one hour)

\frac{130}{5}\ \frac{words}{min}= \frac{x}{60}\ \frac{words}{min}\\\\x=130(60)/5\\\\x=1,560\ words

Part 2) 322 miles in 2 hours. How many miles in 60 minutes?

Remember that

1\ hour=60\ min

so

2\ hours=120\ minutes

using proportion

Find out how many miles in 60 minutes

\frac{322}{120}\ \frac{miles}{min}= \frac{x}{60}\ \frac{miles}{min}\\\\x=322(60)/120\\\\x=161\ miles

8 0
3 years ago
What is the area of this figure?
Luden [163]

Answer:

The area of this figure is 24mm.

Step-by-step explanation:

4mm*3mm=12mm

1mm*6mm=6mm

3mm*4mm=12mm/2mm=6mm

6mm+6mm+12mm=24mm

3 0
3 years ago
The answers are, s=0.20p
larisa86 [58]

Answer:

s=0.20p

Step-by-step explanation:

7 0
3 years ago
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