,a,Please help me with this question

Answer:

Its 3

Step-by-step explanation:

If we know that d is 10 we can substitute d for 10 thus giving us 10 - 7 which is 3

We are given,

and we are also given the value of d :

Now, just put the value of d = 10 in eqⁿ (i) we get :

Let Cesar's, Carmen's and Dalila's amount be represented by x, y and z respectfully.

Since they're money sum up to $95.34, the first expression will be;

x+y+z=95.34

Carmen_y_ is $12.12 less than cesar_x, so the equation will be ;

y=x-12.12

Cesar_x_raised $35more than Dalila_z. So the equation will be;

x=z+35

making z the subject, z=x-35 .

Substituting the Second equation into the first one, we get;

x+x-12.12+z=95.34

Subtracting the third equation into the new equation we get;

x+x-12.12+x-35=95.34

Simplifying, we get 3x- 47.12= 95.34.

3x=142.46

Answer:

gjkddjygdbdbexbdbdbdheeh$70

Answer:

6x-5=12 +5

6x=17 :6

x=2.8333333333

Step-by-step explanation:

prove me wrong

Answer:

69

jk 1740

Step-by-step explanation:

Answer:

well, the required answer is 1740

Step-by-step explanation:

it can be written as

=》 20 × ( 80 + 7 )

=》 1600 + 140

=》 1740

Well, we know standard form of quadratic equation : ax² + bx + c where,

a = Coefficient of x²

b = Coefficient of x

c = Constant term

We also equation for determinant :

⇒ b² - 4ac

Here, if value of determinant i.e. (b² - 4ac) = A perfect Square, then we can understand that the givdn equation is factorisable.

But, if the value of (b² - 4ac) ≠ A perfect square, then it will be considered as "Not factorisable"

Now let's calculate whether the equation is factorisable or not :

Comparing the given equation with ax² + bx + c, we get :

a = 1

b = -3

c = -54

Putting values in the determinant equation :

⇒ (-3)² - 4(1 × -54)

⇒ 9 + 216

⇒ 225

⇒ 15²

So, determinant = A perfect square

That means the given equation is factorisable.

Now let's factorize with by middle term splitting :

⇒ x² - 3x - 54

⇒ x² -(9 - 6)x - 54

⇒ x² - 9x + 6x - 54

⇒ x(x - 9) + 6(x - 9)

⇒ (x + 6)(x - 9) [Required Solution]

Hence, we get our required solution.

Hope this Helps (✿◡‿◡)

Answer:

9 runners

Step-by-step explanation:

Number of runners who started race = 45

Fraction that dropped off in the first half =. 2/3

Fraction of the remaining that dropped of in the second half = 2/5

Number of runners who dropped off in the first half :

(2/3) * 45 = (2 * 45) / 3 = 90 /3 = 30 runners

Runners left = (45 - 30) = 15

Number who dropped off in the second half :

(2/5) * 15 = (2 * 15) / 5 = 30 /5 = 6 runners

Number of runners who finished the race :

(15 - 6) = 9 runners

Answer:

Answer:

x= 1/3 or x=4

Step-by-step explanation:

Let's solve your equation step-by-step.

3x2−13x+4=0

Step 1: Factor left side of equation.

(3x−1)(x−4)=0

Step 2: Set factors equal to 0.

3x−1=0 or x−4=0

x= 1/3or x=4

plz give brainlyest

Answer:

option a

Step-by-step explanation:

alternate exterior angle theorem

Answer:

17:14 or 17 to 14

Step-by-step explanation:

since you know there are 14 girls, subtract 14 from 31 and then you'll get 17. since its asking for a ratio of boys to girls not girls to boys, you put boys first, then girls. so your answer will be 17:14

Answer:

6 erasers

Step-by-step explanation:

The pencils and the notebook together cost $2.75, from there you can calculate how many erasers.

1 eraser would bring the total to $3, therefore Denise can buy $1.25 more of erasers which is 5. 3 + 1.25 is $4.25. therefore Denise can buy 6 erasers

Answer:

he can buy 6 erasers

Step-by-step explanation:

because if you add 1.75 plus one and add 0.25 ....6 times it will equal 4.25 i hope this was helpful

Step-by-step explanation:

Let x represent the number.

We have 2x + 18 = 3x - 5, therefore x = 23.

The number is 23.

Answer:

112°

Step-by-step explanation:

according to the question

34°+34°+x=180°

68°+x=180°

x=112°

Answer:

408

3 percent of 300 is 9.

So it is $9 every month times 12 months

is equal to 108 so add the 300 on top of the 108 = 408

Step-by-step explanation:

Answer:

$342.00

Step-by-step explanation:

38 x 90  = 3420

Answer:

72.2

Step-by-step explanation:

38 * 190%

Answer:

B is correct 4⁷ is the final answer

Answer:

D

Step-by-step explanation:

Solution

here, length= 5cm

breath= ?

Perimeter= 86 cm

By the question,

Perimeter (P) = l×b = 86 cm

or, 5cm × b= 86 cm

or, b = 86÷ 5

or, b= 17.2 cm

Answer:

f (4) = 21

Step-by-step explanation:

the given equation is f (x) = 4x + 5

putting the value of x = 4

we get, f (4) = (4×4) + 5

f (4) = 16 + 5

f (4) = 21

i hope u got it

Answer:

13 dollars

and slope is 3

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

(1,1) to (2,2) and (2,2) to (3,3) and so on is (1,1)

Answer:

625

Step-by-step explanation:

Answer:

25×25

25

× 25

______

125

+ 500

_______

625

Answer:

The average speed of the plain was 800 miles/h

Step-by-step explanation:

Answer:

3.2 plz help me to

Step-by-step explanation:

Answer:

3.2

Step-by-step explanation:

Answer:

3n

Step-by-step explanation:

We can see that the 3 gets distributed into the parentheses since there is a +21 on the right (3×7=21) so we also have to distribute the 3 to the n

Answer:

c= 89

Step-by-step explanation:

the angles of a triangle add up to 180

in this triangle, our angles are:

c-33

c-25

c-29

this means that

(c-33) + (c-25) + (c-29) = 180

3c - 87 = 180

add 87 to both sides

3c = 267

divide both sides by 3

c = 89

Answer:

D) I and II only

Step-by-step explanation: