What is 13/19 as a decimal rounded to the nearest hundredth

-56x + 49y= -14

- 56x + 56y=64

105y=50

y=0.48

-8x+7(0.48)=-2

-8x+3.36=-2

-8x=-5.36

x=0.67

Answer:

(x, y) = (9, 10)

Step-by-step explanation:

-8x + 7y = -2...... (1)

- 8x + 8y = 8......(2)

Multiplying on both sides of the equations (1) & (2) by 8 and 7 respectively, we find:

-64x + 56y = - 16...(3)

-56x + 56y = 56.....(4)

Subtracting equation (4) from equation (3), we find:

-64x + 56y = - 16

-56x + 56y = 56

+ - -

_____________

- 8x = - 72

x = - 72/-8

x = 9

Substituting x = 9 in equation (1), we find:

-8(9) +7y = - 2

-72 +7y = - 2

7y = 72 - 2

7y = 70

y = 70/7

y = 10

(x, y) = (9, 10)

The roots of the equation is x= -1 + i√6 or x= -1 - i√6/2.

A quadratic equation is of the form ax² + bx + c = 0 , which is a second-order polynomial equation in a single variable. a 0. It has at least one solution because it is a second-order polynomial equation, which is guaranteed by the algebraic fundamental theorem.

Given:

x² + 2x + 7 = 0

now, using Discriminant Method

D= √b² - 4ac

D= √4- 4(1)(7)

D= √-24

D= 2i√6

Now, x= -b± D/2a

x= -2 ± 2i√6/2

x= -2 + 2i√6/2  or x= -2 - 2i√6/2

x= -1 + i√6 or x= -1 - i√6/2

Hence, the roots of the equation is x= -1 + i√6 or x= -1 - i√6/2.

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Answer:

20

Step-by-step explanation:

5      X

6     24

6*4=24

so... 5*4=x

x=20

brainlisn’t please

Answer: 20

Step-by-step explanation:

Set up a proportion:

[tex]\frac{5}{6} = \frac{x}{24}[/tex]

Divide the larger denominator by the smaller one.

[tex]24[/tex] ÷ [tex]6 = 4[/tex]

Now, multiply 4 by the numerator we already have.

[tex]\frac{5}{y}[/tex] times [tex]\frac{4}{y}[/tex] = [tex]\frac{20}{y}[/tex]

Now, add the denominator back.

You get [tex]\frac{20}{24}[/tex]. Hope this helps you!

Answer:

2x+7

Step-by-step explanation:

Let's mark Jose's height with x. Of course, you can use any other letter or symbol.

We now need to express another value through this x. That other value we can mark with y.

This y is said to be 7 more then twice Jose's height. Jose's height is x, as we've already said, so:

y = 7 + 2•x (seven more than twice x)

That means that y = 2x+7.

Answer:

x=3/2

Step-by-step explanation:

Answer:

x=[tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Complementary angles add up to 90 (there should be a right angle in the diagram)

x+20+x+10 needs to equal 90 where x=30

Left angle is measured 30+20=50 degrees

Angle on the right is measured 30+10=40 degrees

Answer:

Adjacent angles are two angles in the same plane with a common  VERTEX and a common  SIDE but no common interior points.

Step-by-step explanation:

Adjacent angles share a common side on the same vertes, but they do not overlap each other.

In the attached image, ∠ABD is adjacent to ∠DBC, but ∠ABC is not adjacent to any of them.

Answer:

3808

Step-by-step explanation:

Answer:

x (divistion symbol) 7 + 5

Step-by-step explanation:

Answer:

Katie has a negative trade balance of -$10.

Step-by-step explanation:

James exports 23 pounds for $23 and Katie exports 13 pounds for $13.

Jamie $23 - $13 = $10

Katie $13 - $23 = -$10

True

A statistic is a characteristic of a sample, a portion of the target population. A parameter is a fixed, unknown numerical value, while the statistic is a known number and a variable which depends on the portion of the population.

Parameter Definition: a quantity or statistical measure that, for a given population, is fixed and that is used as the value of a variable in some general distribution or frequency function to make it descriptive of that.

Population: The mean and variance of a population are population parameters.

Statistic Definiton: A statistic or sample statistic is any quantity computed from values in a sample that is used for a statistical purpose. Statistical purposes include estimating a population parameter, describing a sample, or evaluating a hypothesis. The average of sample values is a statistic.

Answer:

67.4

Step-by-step explanation:

In picture listed above.

Brainliest Appreciated.

The measure of the angle PQR will be 67.4 degree.

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

Sides of a triangle are 13 cm , 5 cm, and 12 cm.

And, The angle PRQ = 90 degree.

Now,

Find the measure of angle PQR as;

The triangle PQR is a right triangle and PQ = 13 cm and PR = 12 cm.

Let measure of an angle PQR = θ

So, We can formulate;

sinθ = PR/PQ

sinθ = 12/13

θ = 67.4 degree.

Thus, The measure of the angle PQR will be 67.4 degree.

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Answer:

Its B.

Step-by-step explanation:

It said so.

Answer:

B. [tex] y = 3x - 4 [/tex]

Step-by-step explanation:

First, using two points (0, -4) and (3, 5), find slope:

[tex]  m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{5 -(-4)}{3 - 0} = \frac{9}{3} = 3 [/tex]

Slope, m = 3

Next, determine the y-intercept, b.

The y-intercept is the value of y when x = 0. It is the point where the line intercepts the y-axis.

From the graph given, y-intercept, b, is -4.

Substitute b = -4 and m = 3 into [tex] y = mx + b [/tex].

The equation would be:

✔️[tex] y = 3x - 4 [/tex]

Answer:

10 meters per sec

Step-by-step explanation:

Answer:

10 meters per seconds.

Step-by-step explanation:

Answer:

B; finding the area of a circle

Step-by-step explanation:

You are most likely to encounter an irrational

number when you are finding the area of a circle

The reason is because, to find the area of a circle, we need the number pi

Mathematically as we all know, the number pi is a very popular irrational number

Since we cannot find the area of a circle without it, then we can conclude that we are most likely to come in contact with an irrational number when we find the area of a circle

Answer:

third one

Step-by-step explanation:

Answer:

its 40

Step-by-step explanation:

You've already divided 320 and 8 and you get 40

............ What!?!?!??

Answer:

there

Step-by-step explanation:

10.

TP = 20-12

TP = 8

SP = SQ

SP = 20

RQ = TP

RQ = 8

S-------15.5

20------12

12s = 310

s = 310/12

s =~25,8

11.

75--------46

100-------b

75b = 4600

b = 4600/75

b =~ 61,3

l² = 61,3² + 46²

l² = 3757,69 + 2116

l² = 5873,69

l = [tex]\sqrt{5873,69}[/tex]

l =~ 76,7

Answer:

Step-by-step explanation:

This question bothers on combination. Combination has to do with selection. When selecting r objects from a pool of n objects, this is expressed as;

nCr = n!/(n-r)!r!

For us to choose rank the first 4 choices from 12 students nominated, this can be done in 12C4 number of ways;

12C4 = 12!/(12-4)!4!

12C4 = 12!/8!4!

12C4 = 12*11*10*9*8!/8!*4*3*2

12C4 = 12*11*10*9/24

12C4 = 11880/24

12C4 = 495 ways

Hence this can be done in 495 different ways

Answer:

20

Step-by-step explanation:

Answer:

Each car weighs 2,265 pounds

Step-by-step explanation:

Given that the car carrier weighs 35,000 pounds when empty, that is, without cars, and that loading 7 cars its weight is 50,855 pounds, the difference between both values implies the weight of the 7 cars together, which is determined through the following calculation:

50,855 - 35,000 = X

15.855 = X

Thus, the weight of the 7 cars together is 15,855 pounds. In turn, the weight of each particular car is determined from the following division:

15.855 / 7 = X

2,265 = X

Therefore, each car weighs about 2,265 pounds.

Answer:

17=.y+1. 0.14

Step-by-step explanation:

Answer:

we conclude that the only option (a) is true.

Step-by-step explanation:

As we know that the multiples of 5 are the numbers which we get when we multiply by 5.

i.e.

5×1=5

5×2=10

Here, 5 and 10 are multiples of 5.

Let p and q are integers that are multiples of 5.

Let us consider

p=5

q=10

so

p+q=5+10

     = 15

A number is divisible by 5 if it ends in 5 or 0.

i.e. 15/5 = 3

so p+q is divisible by 3 as there is no remainder left.

Therefore, option (a) is true.

Checking the other options:

(b) P –q is divisible by 10

As

p=5

q=10

so

p-q=5-10

     = -5

Numbers that are divisible by 10 need to be even or divisible by 2 and divisible by 5.

As -5 is not divisible by 2.

So, option b is NOT true.

(c) P +q is divisible by 20

As

p=5

q=10

so

p-q=5+10

     = 15

Divisibility rule of  20  implies that the last two digits of the number are either  00  or divisible by  20 .

Therefore, P + q= 20 is not divisible by 20 as we don't get the whole number.

(d) P + q is divisible by 25​

As

p=5

q=10

so

p-q=5+10

     = 15

p+q=15 is not divisible by 25 as it does not end with 00, 25, 50, or 75.

so, option d is NOT correct.

Therefore, we conclude that the only option (a) is true.

total cost for the blake family :

3d + 2s = 12 — (1)

total cost for the reese family :

2d + 4s = 16 — (2)

multiply equation 1 by 2 so that we can cancel out s later :

(1) x 2 : 2(3d+2s)=2(12)

6d+4s = 24 — (3)

using simultaneous equations,

(3) - (2)

(6d+4s) - (2d+4s) = 24-16

6d-2d+4s-4s = 8

4d = 8

d = 2

the cost of one drink is $2.