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Brilliant_brown [7]
3 years ago
5

Solve for x: 7x + 12 = 47

Mathematics
1 answer:
Inessa05 [86]3 years ago
3 0

Answer:

7x + 12 = 47

7x = 35

x = 5

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Solve for x . Please help !
11111nata11111 [884]

Answer:

x = 12.489996 ft

Step-by-step explanation:

In order to solve one side length of a right triangle given two of other side lengths, you can use the pythagorean theory.

The theory states that the sum of the two adjacent side squares equals the square of the hypotenuse.

Basically:

x^2 + y^2 = h^2

Since the problem gives you the hypotenuse and one adjacent side length you rearrange the formula as so:

x^2 = h^2 - y^2

x=\sqrt{h^2 - y^2}

Then plug in the values:

x = \sqrt{16^2 - 10^2} = \sqrt{256-100}=\sqrt{156} = 2\sqrt{39}=12.489996

8 0
3 years ago
A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. Each
Firdavs [7]

Answer:

Number of small boxes shipped = 10

Number of large boxes shipped = 12

Step-by-step explanation:

Let x be the number of small boxes

and

y be the number of large boxes

According to the first statement, a total of 22 boxes were shipped

Equation 1 will be:

x+y=22

And

According to 2nd statement, Total weight was 1350 and we know the weight of one small box is 45 and large box is 75

So equation 2 will be:

45x+75y=1350

We will use the substitution method for solving the equation

So from equation 1

x+y=22\\x=22-y

Putting the value of x in eqn 2

45x+75y=1350\\45(22-y)+75y=1350\\990-45y+75y=1350\\-45y+75y=1350-990\\30y=360\\\frac{30y}{30}=\frac{360}{30}\\y=12

Putting the value of y in eqn 1

x+y=22\\x+12=22\\x=22-12\\x=10

So,

Number of small boxes shipped = 10

Number of large boxes shipped = 12 ..

4 0
3 years ago
Write −5 The interval notation is
faltersainse [42]

Answer:

(-34,10)

Step-by-step explanation:

just answered on Edtenuity.

5 0
3 years ago
Find the sum<br> [3n+1<br> OP<br> 252<br> 246<br> 234
Paha777 [63]

Answer:

246

Step-by-step explanation:

i got it right on my test

6 0
4 years ago
4xy(x cubed +5xy- 7y squared)
VARVARA [1.3K]

Answer:

4x^4y + 20x^2y^2 - 28x^3y

Step-by-step explanation:

4xy(x^3 + 5xy - 7x^2)

= 4xyx^3 + 4xy * 5xy - 4xy * 7x^2

= 4x^2y + 4xy * 5xy - 4xy * 7x^2

= 4x^4y + 20x^2y^2 - 4xy * 7x^2

= 4x^4y + 20x^2y^2 - 28x^3y

4 0
4 years ago
Read 2 more answers
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