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
mafiozo [28]
3 years ago
14

-5(-3x+10)=30 what is x

Mathematics
1 answer:
Feliz [49]3 years ago
3 0

Answer:

5.33333333...

Step-by-step explanation:

it will be like -5 out the bracket x - 3 x which gives you 15 then we'll check again - 5 then you times it by there 10 in the bracket and then it gives you 50 and then it will be there in 15 x - 50 equals to 30 then you take the -50 to the other side where there is 30

then it will be 15 x equals to 30 + 50 and then then 15 x equals to 8 and then you divide both of the sides with 15 then get your answer

-5 (-3x+10)=30

15x-50=30

15x=30+50

15x/15=80/15

x=5.33333...

You might be interested in
A palm tree is supported by two guy wires as shown in the diagram below. Which trig expression can be used to find the height on
Volgvan

Answer:

D. tan(30^\circ+45^\circ) is the correct answer.

Step-by-step explanation:

The given situation can be represented as a figure attached in answer area.

B is the base of tree.

C is the base of wires.

A and D are the end of 2 wires supporting the tree.

\angle DCB =45^\circ\\\angle ACB =75^\circ\\

Here, we need to find the Height of the tree which is represented the by side AB.

and we are given that bases of wires and tree base are at a distance 4 ft.

i.e. side BC = 4 ft

If we look at the \triangle ABC, we are given the base BC and the \angle ACB, and the perpendicular is to be find out.

We can use trigonometric identity:

tan\theta =\dfrac{Perpendicular}{Base}

tan 75^\circ = \dfrac{AB}{BC}\\\bold {tan (45+30)^\circ }= \dfrac{AB}{4}\\\Rightarrow AB = \bold {tan (45+30)^\circ } \times 4 = 14.93\ ft

Hence, D. tan(30^\circ+45^\circ) is the correct answer.

5 0
3 years ago
Elsa usually bakes 350 dozen muffins a month. At this rate, how many dozen will she bake in a year ?
Ksenya-84 [330]

Answer:

4200 dozen

Step-by-step explanation:

4 0
3 years ago
A minor league baseball stadium has 6000 seats on Beach Tower night the stadium sold 5500 off its available seats what fraction
Kipish [7]
The fraction of seat sold is 11/12
Please give me brainiest.
6 0
3 years ago
What is 100,000,000+70,000,000+4,000,000+800,000+60,000+2,000+500+90+3
dedylja [7]

Answer:

174,862,593

Step-by-step explanation:

I just added them all together

8 0
3 years ago
Read 2 more answers
Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations. (-4, 9), (0,
Tresset [83]

Answer:

\boxed{y=2x^2+4x-7}

Step-by-step explanation:

Let the quadratic function be

y=ax^2+bx+c


We substitute (-4,9) into the equation to obtain;


9=a(-4)^2+b(-4)+c


\Rightarrow 9=16a-4b+c---(1)


We substitute (0,-7) to obtain;


-7=a(0)^2+b(0)^2+c


\Rightarrow c=-7---(2)


We finally substitute (1,-1) to obtain;


-1=a(1)^2+b(1)^2+c


\Rightarrow -1=a+b+c---(3)


We put equation (2) into equation (1) to get;


9=16a-4b-7


16a-4b=16


\Rightarrow 4a-b=4---(4)


\Rightarrow -1=a+b-7


\Rightarrow a+b=6---(5)


We add equation (4) and (5) to get;

4a+a=6+4



\Rightarrow 5a=10



\Rightarrow a=2


We put a=2 into equation (5) to get;


2+b=6


\Rightarrow b=6-2


\Rightarrow b=4


The reqiured quadratic function is

y=2x^2+4x-7

7 0
3 years ago
Other questions:
  • What is the converse of the statement given? "If a triangle is equilateral, then it is isosceles." Question 1 options: A triangl
    5·1 answer
  • handsome Jack is buying a pony made of diamonds. The price of the pony is P dollars, and Jack also has to pay a 25% diamond pony
    14·2 answers
  • How much more gasoline will it take to fill the tank?
    11·1 answer
  • PLZZZZ HELPPPPPP NOWWWWWW PLZ PLZ PLZ
    5·1 answer
  • What is the approximate area of the shaded region in the given square containing 2 semicircles? (Use * 3.14.) 10 cm 0 21.5 squar
    14·2 answers
  • Anton bought a new sofa that was originally $700 and used a coupon for 30%.
    7·1 answer
  • PLZZZ HELP I NEED HELP
    13·1 answer
  • 1<br> What is the slope of the line that passes through (2, 2) and (5,4)?
    5·1 answer
  • Can someone help me please!? Can you show the work as well! :)
    13·1 answer
  • It is estimated that approximately 8.23% Americans are afflicted with diabetes. Suppose that a certain diagnostic evaluation for
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!