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
gavmur [86]
3 years ago
6

Can someone help me how to write the equations of this three problems?

Mathematics
2 answers:
drek231 [11]3 years ago
3 0

Number 11:

(356-50) ÷ 17 = x

mash [69]3 years ago
3 0

11.    50 +17x = 356    where x = number of months

17x = 306

x =306 / 17  = 18 months answer


12.   3x + 21 = 60

3x = 39   x = $13 answer


13.    15(x - 20) =  375

15x  - 300 = 375

15x = 675

x = $45  answer

You might be interested in
Please help me. i want to have this finished.
Anuta_ua [19.1K]
We know that y is equal to x-2. We can just substitute x-2 for y since y is equal to it. 

10x- 9(x-2)=24

Distribute.

10x- 9x+18= 24

x+18= 24

Subtract 18 on both sides.

x= 6

Now, plug in x.

y= (6)-2

y= 4

We can check this to see if this works:

4= 6-2, 4=4 

10(6)- 9(4)= 24

60-36= 24, 24=24

x=6 and y=4

I hope this helps!
<em>~kaikers</em>
5 0
3 years ago
What is the best way to convert metric units (I'm really bad at this...)
Vladimir [108]
Necesitas reconocer los múltiplos u submúltiplos del sistema métrico decimal si son lineales por cada nivel que avanzas multiplicas o divides con el 10
siempre y cuando la unidad de medida es el metro ese queda al centro.
Km Hm Dam m dm cm mm yo los ubico en escalera el metro queda al centro y de cualquier lugar que te posicionas,buscas a donde quieres convertir y revisas si vas a la derecha multiplicas por 10 o si vas a la izquierda divides entre 10 siempre y cuando sea un lugar a donde te vas a mover si son dos lugares es con el 100 por que 10x10 es 100 y si son tres lugares es con el 1000 porque es 10x10x10.
ejemplo 2000m convertirlos a Hm= 20 Hm dividí 2000 entre 100 porque me moví 2 lugares a la izquierda  otro ejem. 100 Dam convertirlos a cm=100000 porque 100x 1000 por que avance 3 lugares a la derecha
4 0
3 years ago
A skydiver's speed during a free fall
Alekssandra [29.7K]

Answer:

Below in bold.

Step-by-step explanation:

1. 165/3.3 = 50 meters/second.

2. In 4 seconds the skydiver will fall 4*50 = 200 meters.

5 0
2 years ago
At a constant temperature, the volume of gas, V, is inversely proportional to its pressure, p. By what percentage will the press
dybincka [34]

Answer:

25 + v maybe

Step-by-step explanation:

7 0
3 years ago
Please help!<br>"solving proportions" is what needs done<br>please show all work clearly!​
Oksana_A [137]

23) x = \frac{-60}{9} = -6.666.

24) x = \frac{-12}{7} = -1.7142.

25) x = \frac{-37}{5} = -7.4.

Step-by-step explanation:

Step 1; For \frac{x+6}{3} = \frac{x+4}{12}, we cross multiply the denominators and get,

3 × (x + 4) = 12 × (x + 6),

3x + 12 = 12x + 72.

We take all the x terms to the LHS and keep the constants on the RHS.

3x - 12x = 72 - 12,

-9x = 60, x = \frac{-60}{9} = -6.6666.

Step 2; For \frac{-5}{x-4} = \frac{9}{x+12}, we cross multiply the denominators and get,

-5 × (x + 12) = 9 × (x - 4),

-5x - 60 = 9x - 36.

We take all the x terms to the LHS and keep the constants on the RHS.

-5x - 9x = -36 + 60,

-14x = 24, x = \frac{-24}{14} = -1.7142.

Step 3; For \frac{6}{11} = \frac{x-1}{x-8}, we cross multiply the denominators and get,

6 × (x - 8) = 11 × (x - 1),

6x - 48 = 11x - 11.

We take all the x terms to the LHS and keep the constants on the RHS.

6x - 11x = -11 + 48,

-5x = 37, x = \frac{-37}{5} = -7.4.

7 0
3 years ago
Other questions:
  • Find the total cost uing each unit 5 ft at $3 per foot
    14·1 answer
  • What is the value of (x + 4)(x – 5) when x = 5?<br><br> A. 20<br><br> B. 4<br><br> C. 0<br><br> D. 1
    13·1 answer
  • What is the measure of 0 in radians?
    15·1 answer
  • During a math game, a team kept track of their answers. The following diagram describes the number of answers they got right to
    7·2 answers
  • Help please I need this ASAP
    11·1 answer
  • Help will mark brainly
    5·2 answers
  • 1. ____________________________ plate boundaries occur where plates are drawing apart from each other.
    9·2 answers
  • Kelly makes fruit juice each morning. She uses 2 1/3 pints of strawberries and 1 2/5 pins of grapes in her juice how many more p
    9·1 answer
  • HELPPPPPPPPPPPPPP PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    9·2 answers
  • What common fraction is equivalent to 7.5%?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!