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
seraphim [82]
2 years ago
8

Me ajudaa por favor, é urgente

Mathematics
1 answer:
Zigmanuir [339]2 years ago
6 0

Answer: x=16 kg.

Step-by-step explanation:

\displaystyle\\x+x+\frac{1}{2}x=40\\\\ 2\frac{1}{2}x=40\\\\\frac{(2*2+1)}{2}x=40\\\\ \frac{5}{2}  x=40\\\\Multiply\  both\  sides\  of\  the\  equation\  by\  2:\\\\\frac{5}{2}x*2 =40*2\\\\5x=80\\\\Divide\  both\  sides\  of\  the\  equation\  by\  5:\\\\x=16\ kg.

You might be interested in
Find the value of f(5) for each function. f(x) = -2 (x + 1)
Fynjy0 [20]

solution

f(x)= 1/(3x+1)

When f(5/3)

f(x)= 1/(3x+1)

f(5/3)= 1/(3(5/3)+1)

f(5/3)= 1/(5+1)

f(5/3)= 1/6

6 0
3 years ago
Is 7x^3 =5x-2 in standard form?<br> A)yes <br> B) no
Sedbober [7]

no it not a standard form

7 0
4 years ago
Read 2 more answers
Which value is equal to -18 divided by -9?
trapecia [35]

Answer:

\huge \boxed{ \boxed{2}}

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • PEMDAS
  • integer
<h3>tips and formulas:</h3>
  • \frac{ - a}{ - b}  = c
<h3>let's solve:</h3>

\sf step - 1  : define

\sf\frac{ - 18}{ - 9}

\sf step - 2 : solve

  1. \sf simplify \: divisio n :  \\  \frac{ - 18}{ -9 }  \\ = 2

6 0
3 years ago
Geometry Question, I’m really super duper confused here
abruzzese [7]
Check the picture below.

make sure your calculator is in Degree mode.

7 0
3 years ago
Find the missing x- and y-values and Pythagorean triples can be generated using the identity given. Write the triple in parenthe
ddd [48]

The complete question is:

Find the missing x- and y-values and Pythagorean triples using the identity given:

(x² - y²)² + (2xy)² = (x² + y²)²

X Value: 4

Y Value: 3

Pythagorean Triples: ?

X Value: 5

Y Value: ?

Pythagorean Triples: (9,40,41)

X Value: ?

Y Value: 3

Pythagorean Triples: (27,36,45)

X Value: 7

Y Value: 5

Pythagorean Triples: ?

Step-by-step explanation:

Pythagorean triples are three numbers p, q, r, that satisfy Pythagoras' theorem.

That is, they are numbers such that

r² = p² + q².

Given the identity

(x² - y²)² + (2xy)² = (x² + y²)²

We can say tha

p = x² - y²

q = 2xy

r = x² + y²

Now, let us use this to solve the given problems.

X Value: 4

Y Value: 3

p = 4² - 3² = 7

q = 2×3×4 = 24

r = 3² + 4² = 25

Pythagorean Triples: (7,24,25)

X Value: 5

Y Value: ? = (4)

q = 2xy = 40

2×5×y = 40

y = 40/10 = 4

Pythagorean Triples: (9,40,41)

X Value: ? = (6)

Y Value: 3

2xy = q = 36

2×3×x = 36

x = 36/6 = 6

Pythagorean Triples: (27,36,45)

X Value: 7

Y Value: 5

p = 7² - 5² = 24

q = 2×7×5 = 70

r = 7² + 5² = 74

Pythagorean Triples: ? = (24,70,74)

8 0
3 years ago
Other questions:
  • How do you write a statement that describe how the distance you travel is determined
    6·1 answer
  • Solve for x. 3x+2 = 8x-1
    13·1 answer
  • Please help with answer if your cool/
    9·1 answer
  • A pot of boiling water at 212 degrees Fahrenheit on the stove has less thermal energy than a hot tub full of water at 100..4 deg
    8·1 answer
  • Two sides of a right triangle are 8 and 12 in find the missing side lengths of the legs
    14·1 answer
  • Use the expression 5(6 + 4x) to answer the following:
    6·1 answer
  • A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.
    8·1 answer
  • Help please help me please​
    8·2 answers
  • George finished 10 of 25 math problems.what percent of the problems did george finish
    12·2 answers
  • I need help with math.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!