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Mrac [35]
4 years ago
8

0.8(5+5x)+4x=20? Please help me outttt

Mathematics
2 answers:
Alexxandr [17]4 years ago
8 0
4+4x+4x=20
4+8x=20
8x=16
X=2
kupik [55]4 years ago
3 0
4+4x+4x=20
4+8x=20
4=12x
3=x
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I NEED DESPERATE HELP BADDIES VAWYCVYAGVFYGQEVEF
gtnhenbr [62]

Answer:

BCD is the outer angle of triangle ABC

=> BCD = ABC + BAC

<=> 150⁰ = ABC + 118⁰

=> ABC = 150⁰ - 118⁰

<=> ABC = 32⁰

5 0
3 years ago
Read 2 more answers
Please help I need it done right now
Lina20 [59]

Use the way that kids use i.e trial and error method .

Solution:-

The set given by

\\ \rm\longmapsto \left\{32+n,\dfrac{n}{8},\sqrt{n+225}\right\}

Lets understand

  • See the first term any natural value will make it natural .

Come to 2nd one.

  • n should be a multiple of 8 to make it whole.

Come to third one

  • n should be a number which makes the sum a perfect square by which we get a natural no.We have to solve it w.r.t to 2nd one

Lets think

Nearest squares to 225 are 196 and 289

We can't take 196 as we have to take a positive one other wise it will come in terms of i.

Take 289

\\ \rm\longmapsto n+225=289

\\ \rm\longmapsto n=289-225=64

Its divisible by 8 .

Rewrite the set

\\ \rm\longmapsto \left\{64+32,\dfrac{64}{8},\sqrt{225+64}\right\}

\\ \rm\longmapsto \left\{96,8,\sqrt{289}\right\}

\\ \rm\longmapsto \left\{96,8,17\right\}

Hence n=64

8 0
3 years ago
Which statement BEST describes the growth of bacteria modeled by the function f(x)=1.8x
lara [203]

Answer:


Step-by-step explanation:

f(x) = 1.8x is a linear function and does not model the growth of bacteria.  Perhaps you meant f(x) = 1.8^x, which is an exponential function whose initial value is 1.  Please ensure that you have copied down this problem exactly as it was presented.



6 0
3 years ago
A T-shirt design company charges your team an initial fee of $25 to create the team's design. Each T-shirt printed with your des
Korvikt [17]

Answer:

Part A)

C(t)=25+8t

Part B)

C(35)=\$305

Step-by-step explanation:

We will let <em>t</em> represent the total number of t-shirts printed.

We are charged an initial fee of $25. So, for our linear model, our constant is 25. And each t-shirt printed costs an additional $8. So, for <em>t</em> t-shirts, it will cost an additional 8<em>t</em> dollars.

Part A)

So, from the above information, we can write the following function:

C(t)=25+8t

Where <em>C(t)</em> is the total cost for <em>t</em> shirts.

The 25 represents our initial fee and the <em>8t</em> represents the cost for <em>t</em> t-shirts.

Part B)

So, if we have a team of 35 members, we will need 35 t-shirts.

Then the total cost will be given by:

\begin{aligned}C(35)&=25+8(35)\\&=25+280\\&=\$305\end{aligned}

So, it will cost a total of $305.

3 0
3 years ago
An archer shoots an arrow up towards a target located on a hill, which is shown by the graph. Which set of equations best models
Gekata [30.6K]

The set of equations best models the point of intersection of the arrow and the target is:

y = –0.008x² + 0.2x + 7 and y = 0.12x.

<h3>What are the equations of the point of intersection?</h3>

To find the equations, we have to look at two things.

  • The coordinates of the point.
  • The behavior of the arrows trajectory, that is, if it's concave up or concave down.

The coordinates of the point are (35, 4.2), hence the best linear representation is:

y = 0.12x.

This leaves the first two options. The trajectory is concave down, which removes the second option, hence the correct option is:

y = –0.008x² + 0.2x + 7 and y = 0.12x.

A similar problem, involving a point of intersection, is given at brainly.com/question/11337174

#SPJ1

7 0
2 years ago
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