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Vesnalui [34]
3 years ago
7

So thirds a number plus 4 is 7

Mathematics
1 answer:
kipiarov [429]3 years ago
5 0

Answer:

x = 1

Step-by-step explanation:

So, let the unknown number be x

then 3x + 4 = 7

3x = 7 - 4

3x = 3

x = 3/3

x = 1

Hope this helps

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Please help me out please
Marrrta [24]

Answer:

7x

On my opinion may be its 7x because don't know whats the answer just i want to help you if its wrong then plz sorry

7 0
3 years ago
The width is 7 and the diagonal is 25 what is the height
Korvikt [17]
The height is 24.

We can use Pythagorean’s Theorem: a^2+b^2=c^2

substituting values we get:

a^2+7^2=25^2

Solving we get:
a^2+49=625
a^2=576
a=24.

So the height is 24.

Hope this helps!
8 0
3 years ago
Harry has a small business cleaning kitchens and bathrooms. He usually cleans a bathroom in 1 hour and cleans a kitchen in 45 mi
Bumek [7]

Answer:

8 bathroom jobs and 9 kitchen jobs

Step-by-step explanation:

B=60

K=20

8*60=480

9*20=180

that would give harry 660 dollars in a week. HOWEVER- we have to make sure that its equal to or less than 15 hours of work.

8*1h= 8 hours in bathroom

9*45m=6.75hr in kitchen

8 hours+6.75 hours=14.75hr 14.75 hr<15hr so it works.

4 0
4 years ago
A chemist needs to mix a 40% hydrochloric acid with a 70% hydrochloric acid to create a 20 oz mixture that is 55% hydrochloric a
nikdorinn [45]

Answer:

y=10

Step-by-step explanation:

5 0
3 years ago
A student packages snack mix at a health food store. She uses 1/3 of her supply of sunflower seeds to make a salted snack mix an
LUCKY_DIMON [66]
10 / (1/3); she has 30 pounds of seeds in her supply.
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3 years ago
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