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
Luden [163]
4 years ago
7

4x-4+4x-10=5x+1 need help

Mathematics
1 answer:
galina1969 [7]4 years ago
5 0

Answer:

x=5

Step-by-step explanation:

You might be interested in
Lucy is tiling her bathroom. She buys white and blue tiles in the ratio 13:2.Blue tiles cost £2.80 while white tiles cost £2.35.
krok68 [10]

Answer:

* Lucy spent £289.2 on tiles *

Step-by-step explanation:

We know that the tiles are present in a 13 to 2 ratio ( 13 : 2 ) so if there are 16 blue tiles that she buys, the number of red tiles bought should be represented the following -

\frac{13}{2} = \frac{x}{16} ... now this is only assuming that the 13 : 2 ratio is meant by white : blue tiles. Let's solve through cross - multiplication,

13 * 16 = 2x,

208 = 2x,

x = 104 white tiles

So if there are 104 white tiles, and 16 blue tiles, we can determine the total amount Lucy spent on tiles by associating the cost to the type of tile,

£2.80 * 16 = £44.8,

£2.35 * 104 = £244.4,

Total Amount Lucy Spent on Tiles = £44.8 + £244.4 = £289.2

8 0
3 years ago
Write an equation of cosine function with amplitude 2 and a period 4pi
Arisa [49]
\bf \qquad \qquad \qquad \qquad \textit{function transformations}
\\ \quad \\
% function transformations for trigonometric functions
\begin{array}{rllll}
% left side templates
f(x)=&{{  A}}cos({{  B}}x+{{  C}})+{{  D}}\\
f(x)=&{{  A}}sin({{  B}}x+{{  C}})+{{  D}}\\
f(x)=&{{  A}}tan({{  B}}x+{{  C}})+{{  D}}
\\ \quad \\

\end{array}

\bf \begin{array}{llll}
% right side info
\bullet \textit{ stretches or shrinks}\\
\quad \textit{horizontally by amplitude } |{{  A}}|\\\\
\bullet \textit{ horizontal shift by }\frac{{{  C}}}{{{  B}}}\\
\qquad  if\ \frac{{{  C}}}{{{  B}}}\textit{ is negative, to the right}\\
\qquad  if\ \frac{{{  C}}}{{{  B}}}\textit{ is positive, to the left}
\end{array}

\bf \begin{array}{llll}


\bullet \textit{vertical shift by }{{  D}}\\
\qquad if\ {{  D}}\textit{ is negative, downwards}\\
\qquad if\ {{  D}}\textit{ is positive, upwards}\\\\
\bullet \textit{function period}\\
\qquad \frac{2\pi }{{{  B}}}\ for\ cos(\theta),\ sin(\theta),\ sec(\theta),\ csc(\theta)\\
\qquad \frac{\pi }{{{  B}}}\ for\ tan(\theta),\ cot(\theta)
\end{array}

now.. hmmm let's see, keeping in mind the template above

so, amplitude of 2, A=2, thus |A| = ±2, so, you can use either

and period of 4π, well, that simply means that 

\bf \cfrac{2\pi }{B}=4\pi \implies \cfrac{2\pi }{4\pi }=B\implies \cfrac{1}{2}=B\\\\
-----------------------------\\\\

\begin{array}{llll}
f(\theta)=&\pm 2cos&\left(\frac{1}{2}\theta  \right)\\
&\ \uparrow &\ \uparrow \\
&A&B
\end{array}
8 0
4 years ago
Myra has a 17 foot roll of crepe paper to make 8 streamers to decorate for a party. How long will each streamer be if she cuts t
Vsevolod [243]
Each streamer would be 2.125 feet long
5 0
4 years ago
Hanna shops for socks that cost $2.99 for each pair and blouses that cost $12.99 each. Let x represent the number
BigorU [14]

Answer:

2.99x + 12.99y = 43.92

Step-by-step explanation:

socks cost 2.99 and she bought x

2.99x

blouses cost 12.99 and she bought y

12.99y

The total is

2.99x + 12.99y

The total cost was 43.92

2.99x + 12.99y = 43.92

3 0
3 years ago
Read 2 more answers
The three lines represent the amount of water, over time, in three tanks that are the same size. Which tank is filling most quic
Tpy6a [65]

Answer:

Tank A

Step-by-step explanation:

Got it right on Kahn

4 0
3 years ago
Other questions:
  • What completely describes the polygon
    15·1 answer
  • Please HELP ASAP!
    8·1 answer
  • The total number of markers that Nancy has if she gives away 2/5 of her m markers to Amy
    14·2 answers
  • A music store has 500 guitar picks. They order 15 boxes with 9 picks each. They sell 19 boxes that have 10 picks each. The store
    10·1 answer
  • What is 2+2<br> what is square root of 2<br> what is 2 squared<br> what is 2 cubed
    6·2 answers
  • O número -3 é a raíz da equação x² - 7x - 2c = 0. Nessas condições, determine o valor do coeficiente c: A) 7 B) -2 C) -3 D) 15 E
    8·1 answer
  • 4. Is it appropriate to use an absolute value inequality to represent how a player wins
    13·1 answer
  • The weight of meteorite A is five times the weight of meteorite B if their sums of their weights is 108 tons, find the weight of
    6·1 answer
  • What is 2/3 times 2? I need it for algebra 1
    6·1 answer
  • The data to represent average test scores for a class of 16 students includes an outlier value of 78. If the outlier is included
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!