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sergij07 [2.7K]
3 years ago
12

Solve for x please will mark brainliest

Mathematics
2 answers:
zimovet [89]3 years ago
8 0

Answer:

<u>x = 16</u>

Step-by-step explanation:

<em>if we want the value of x so</em>

<em></em>

<em>(4x + 1 ) = 65 (vertically opposite angles are same)</em>

<em>4x = 65 - 1</em>

<em>4x = 64</em>

<em>x= 64/4</em>

<em>x = 16</em>

Ratling [72]3 years ago
7 0

Answer:

7x + 3 + 65 = 180 \\ 7x + 68 = 180 \\ 7x = 180 - 68 \\ 7x = 112 \\ x =  \frac{112}{7}  = 16 \\ thank \: you

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A video game system and several games are sold for
natka813 [3]
S=cost of system
G=cost of games = 3S
total=S+G=652 =>
S+3S=652
4S=652
S=652/4=163
G=3S=3*163=389
7 0
3 years ago
The roots of a quadratic equation are (1,0) and (-5,0). What is the axis of symmetry?
leva [86]

Answer:

Step-by-step explanation:

The axis of symmetry lies exactly halfway between the given x = 1 and x = -5.

The axis of symmetry is x = -2.

The 'halfway' value is also the 'average' of 1 and -5:  -4/2, or -2.

The axis of symmetry is x = -2.

8 0
3 years ago
Help!! Stuck on math problem!
Brut [27]
Vertical Asymptotes:
x=0
x=0
Horizontal Asymptotes:
y=0
y=0
No Oblique Asymptotes
7 0
3 years ago
How many committees of 4 boys and 3 girls<br> can be formed from a class of 6 boys and 7<br> girls?
VLD [36.1K]

Answer:

525

Step-by-step explanation:

This is a question involving combinatorics

The number of ways of choosing a subset k from a set of n elements is given by {n \choose k} which evaluates to \frac{n!}{k!(n-k)!}

n! is the product n × (n-1) × (n-2) x....x 3 x 2 x 1

For example,

4! = 4 x 3 x 2 x 1 = 24

3! = 3 x 2 x 1 = 6

Since we have to choose 4 boys from a class of 6 boys, the total number of ways this can be done is

{6 \choose 4} = \frac{6!}{4!(6-4)!} = \frac{6!}{4!2!}

Note that 6! = 6 x 5 x 4 x 3 x 2 x 1 and 4 x 3 x 2 x 1  is nothing but 4!

So the numerator can be re-written as 6 x 5 x (4!)

We can rewrite the expression \frac{6!}{4!2!} \text{ as } \frac{6.5.4!}{4!2!}

Cancelling 4! from both numerator and denominator gives us the result

as  (6 × 5)/2! = 20/2 = 15 different ways of choosing 4 boys from a class of 6 boys

For the girls, the number of ways of choosing 3 girls from a class of 7 girls is given by

{7 \choose 3} = \frac{7!}{3!(7-3)!} = \frac{7!}{3!4!}

This works out to (7 x 6 x 5 )/(3 x 2 x 1)  (using the same logic as for the boys computation)

= 210/6 = 35

So total number of committees of 4 boys and 3 girls that can be formed from a class of 6 boys and 7 girls = 15 x 35 = 525

8 0
2 years ago
Three people split an amount of money. 1 268 dollars and 1 gets 200 dollars. The third gets 40 percent. What is the amount?
Maksim231197 [3]

The total amount is $ 780

<em><u>Solution:</u></em>

Let the total amount be "x"

Given that,

First person gets $ 268

Second person gets $ 200

Third person gets 40 %

This means, third person gets 40 % of total amount

Third person = 40 % of x

Third\ person = 40 \% \times x\\\\Third\ person = \frac{40}{100} \times x\\\\Third\ person = 0.4x

We know that, total amount is equal to sum of amount got by all three persons

Total amount = first person + second person + third perosn

x = 268 + 200+ 0.4x\\\\x - 0.4x = 268 + 200\\\\0.6x = 468\\\\x = \frac{468}{0.6}\\\\x = 780

Thus the total amount is $ 780

6 0
4 years ago
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