1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ratelena [41]
2 years ago
10

Twice the sum of a certain number and 73 is 156

Mathematics
1 answer:
sleet_krkn [62]2 years ago
8 0
X= a number

Twice the sum of a number (x) plus 73 equals 156.

EQUATION:
2(x + 73)= 156

Not sure if you need to solve it too, but here's how to solve:

2(x + 73)= 156
multiply 2 by all in parentheses

(2*x) + (2*73)= 156
2x + 146= 156

subtract 146 from both sides
2x= 10

divide both sides by 2
x= 5

The missing number is 5.

CHECK:
2(x + 73)= 156
2(5 + 73)= 156
2(78)= 156
156= 156

Hope this helps! :)

You might be interested in
Solve 3(a + 3) – 6 = 21. Write a reason for each step.
kakasveta [241]

Answer:

Step-by-step explanation:

3(a+3)-6=21

<=>3a+9-6=21

<=>3a+3=21

<=>3a=18

<=>a=6

7 0
2 years ago
Read 2 more answers
Need this by tomorrow please and thank you!​
Marrrta [24]

Answer:

I think it's x=5

Step-by-step explanation:

3x+15=2x+20

-2x. -2x

x+15=20

-15. -15

x=5

sorry if is not the answer

5 0
2 years ago
Find the final price on a $1,049 television
jasenka [17]

Answer:

$883.40

Step-by-step explanation:

Calculate the amount of money needed to pay after the discount.n

$1049 × 88% = $923.12

Calculate the amount of money needed to pay after the tax.

$923.12 × 104.5% = $883.3684210526

=$883.40(rounded off to nearest cents)

hope  this helps

4 0
3 years ago
skew-symmetric 3 x 3 matrices form as subspace of all 3 x 3 matrices and find a basis for this subspace.
Neporo4naja [7]

Answer:

a) ∝A ∈ W

so by subspace, W is subspace of 3 × 3 matrix

b) therefore Basis of W is

={ {\left[\begin{array}{ccc}0&1&0\\-1&0&0\\0&0&0\end{array}\right] ,\left[\begin{array}{ccc}0&0&1\\0&0&0\\-1&0&0\end{array}\right] ,\left[\begin{array}{ccc}0&0&0\\0&0&1\\0&-1&0\end{array}\right]}

Step-by-step explanation:

Given the data in the question;

W = { A| Air Skew symmetric matrix}

= {A | A = -A^T }

A ; O⁻ = -O⁻^T        O⁻ : Zero mstrix

O⁻ ∈ W

now let A, B ∈ W

A = -A^T       B = -B^T

(A+B)^T = A^T + B^T

= -A - B

- ( A + B )

⇒ A + B = -( A + B)^T

∴ A + B ∈ W.

∝ ∈ | R

(∝.A)^T = ∝A^T

= ∝( -A)

= -( ∝A)

(∝A) = -( ∝A)^T

∴ ∝A ∈ W

so by subspace, W is subspace of 3 × 3 matrix

A ∈ W

A = -AT

A = \left[\begin{array}{ccc}o&a&b\\-a&o&c\\-b&-c&0\end{array}\right]

= a\left[\begin{array}{ccc}0&1&0\\-1&0&0\\0&0&0\end{array}\right] +b\left[\begin{array}{ccc}0&0&1\\0&0&0\\-1&0&0\end{array}\right] +c\left[\begin{array}{ccc}0&0&0\\0&0&1\\0&-1&0\end{array}\right]

therefore Basis of W is

={ {\left[\begin{array}{ccc}0&1&0\\-1&0&0\\0&0&0\end{array}\right] ,\left[\begin{array}{ccc}0&0&1\\0&0&0\\-1&0&0\end{array}\right] ,\left[\begin{array}{ccc}0&0&0\\0&0&1\\0&-1&0\end{array}\right]}

8 0
3 years ago
What is the area of the parallelogram?
Maksim231197 [3]

Answer:

Step 1: area is base × height

Step 2: 36cm2

Step-by-step explanation:

Base × height is 9 and 4 and 9×4 = 36cm2

Hope this helps :)

8 0
1 year ago
Other questions:
  • How much fencing is needed to make the cage area?
    7·1 answer
  • On a map, 1 inch equals 20 miles. two cities are 135 miles apart.what is the distance between the two cities on the map?
    5·1 answer
  • Ivan is an artist. He creates 1 sculpture for every 7 paintings. If he has created 63 paintings, how many sculptures has he crea
    13·1 answer
  • If 1 quart = 0.946 liters<br> How many quarts are in 7 liters??<br> Please answer!!
    10·1 answer
  • Principal = $800<br> Interest Rate = 3.5%<br> Time = 6 months<br> Find the interest earned.
    13·1 answer
  • (9+5)t pls help meee
    13·1 answer
  • helpppp it’s also not C
    7·1 answer
  • Prove whether the following inferences are valid using the long or short truth table method. If they are invalid, give the count
    12·1 answer
  • HELP PLZ AGAIN. Same material. It is still timed. Will give 75 pts and brainly. This is vital to my math grade. Time is on the e
    14·2 answers
  • PLS NO LINKS, rlly need help
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!