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lord [1]
3 years ago
11

Solve for h in the equation 15-2h=6

Mathematics
2 answers:
GREYUIT [131]3 years ago
5 0

Answer:

<u>h</u><u> </u><u>is</u><u> </u><u>4</u><u>.</u><u>5</u>

Step-by-step explanation:

15 - 2h = 6

make 2h the subject:

- 2h = 6 - 15 \\  - 2h =  - 9

divide all sides by -2:

\frac{ - 2h}{ - 2}  =  \frac{ - 9}{ - 2}  \\  \\ h =  \frac{9}{2}  \\  \\ h = 4.5

liberstina [14]3 years ago
5 0

Answer:

h=4.5

Step-by-step explanation:

15-2h=6   Get rid of any constants of the side of the variable.

<u>-15    -15</u>

-2h=-9      Divide -2 from both sides to isolate h.

<u>/-2  /-2</u>

h=4.5

Hope this helped you out! Have a wonderful day :)

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A meuseum added 18 painting to its collection in may. This is 20% of paintings the meuseum has in April. How many paintings did
Alexus [3.1K]

18 / x = 20 / 100

20x = 1800

x = 90

The museum had 90 paintings in April.

Hope this helps!! :)

5 0
3 years ago
Becca Buy 1.5 pounds of grapes and paid $3.72 what was the cost per pound of grapes
Trava [24]
3.72÷1.5=2.48
$2.48 per pound

4 0
3 years ago
Sandra needs to make 500 L hand sanitizer with 75% alcoholic solution. He has only two of the alcoholic solutions available, a 6
shtirl [24]

If Sandra mixes <em>x</em> L of 65% solution with <em>y</em> L of 90% solution, then the resulting mixture has a total volume of

<em>x</em> + <em>y</em> = 500

litres, and it contains

0.65<em>x</em> + 0.90<em>y</em> = 0.75 (500) = 375

litres of alcohol.

Solve the first equation for <em>y</em> :

<em>y</em> = 500 - <em>x</em>

<em />

Substitute this into the second equation and solve for <em>x</em> :

0.65<em>x</em> + 0.90 (500 - <em>x</em>) = 375

0.65<em>x</em> + 450 - 0.90<em>x</em> = 375

75 = 0.25<em>x</em>

<em>x</em> = 300

Solve for <em>y</em> :

<em>y</em> = 500 - 300

<em>y</em> = 200

So, Sandra should mix 300 L of 65% solution with 200 L of 90% solution.

8 0
3 years ago
Help pls im on a timed test<br><br> * For people who search it up (3x)^3=3^1
wel

Answer:

  • Option D. x = -2

Step-by-step explanation:

<u>Given equation:</u>

  • (3^x)^3 = 3^1.
  • (3^3^+^(^-^2^)) = 3^1
  • = 3^1.

<u>Your answer will be Option D.</u>

6 0
2 years ago
Upon descent, an airplane is 20,000 feet above the ground. The air traffic control tower is 200 feet tall. It is determined that
PIT_PIT [208]

Answer:

Base length of plane from control tower = 73,880 feet (Approx.)

Step-by-step explanation:

Given:

Height of plane from ground = 20,000 feet

Height of control tower = 200 feet

Angle of elevation from control tower = 15°

Find:

Base length of plane from control tower

Computation:

Height of plane from control tower = 20,000 - 200

Height of plane from control tower = 19,800 feet

Tan θ = Perpendicular / Base

Tan15 = 19,800 / Base length of plane from control tower

0.268 = 19,800 / Base length of plane from control tower

Base length of plane from control tower = 73,880 feet (Approx.)

6 0
3 years ago
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