What is the solution of the system? {5x−y=−21x+y=−3 Enter your answer in the boxes. ( , )

Answer:

x = 109

Step-by-step explanation:

x and 109° are vertically opposite angles and are congruent, so

x = 109

Answer:

A: $45 for 3 days

B: c=d(15)

Step-by-step explanation:

A: If 105 is the cost for 7 days and we want to find the cost for only 3 we have to find the cost for one day to start with so, 105 divided by 7 which is $15 so its 15 dollars a day then you multiply 15 by the number of days we want (3) and you get $45.

Answer:

i think b

Step-by-step explanation:

9=3^2 and 10^4=(10^2)2

The number 9 x 10⁴ is a square number. which the correct answer would be an option (B).

A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9.

As per option (A),

4 x 10⁵

This number is not a square number.

As per option (B),

9 x 10⁴  = (3² x 10²)²

This number is a square number.

As per option (C),

4 x 10³

This number is not a square number.

As per option (D),

9 x 10³

This number is not a square number.

Thus, the number 9 x 10⁴ is a square number.

Hence, the correct answer would be option (B).

Learn more about the number system here:

https://brainly.com/question/21751836

#SPJ2

Answer:

29

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

Since 3x and 87 are the same length, all we need to do is 87 divided by 3.

Answer:

The sales tax is 4%

Step-by-step explanation:

hope this helps plz mark brainliest

Answer:

6,336 inches, 0.1 mile, and 176 yards

Step-by-step explanation:

I just looked it up lol

Answer: x = -27

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex] step - 1 : define \\ - 8 = \frac{x}{3} + 1[/tex]

[tex]step - 2 : \\ rewrite[/tex]

[tex]\frac{x}{3} + 1= - 8[/tex]

[tex]step - 3 : \\ subtract \: 1 \: from \: both \: sides[/tex]

[tex] \frac{x}{3} + 1 - 1 = - 8 - 1[/tex]

[tex] \frac{x}{3} = - 9[/tex]

[tex]step - 4 : \\ multiply \: both \: sides \: by \: 3[/tex]

[tex] \frac{x}{3} \times 3 = - 9 \times 3[/tex]

[tex] \huge \therefore x = - 27[/tex]

Answer: The answer is A

Step-by-step explanation: because 5x-30= -150 because I looked it up

Answer:

B. The value of y can be negative.

Step-by-step explanation:

The value of y can be negative, which means the beekeeper wasn't able to sell a lot of jars that could compensate the amount he paid for the booth. It also means he didn't have any profit, rather, he incurred a loss.

For example, if the beekeeper sold only 5 jars of honey, the solution will look like this:

Let x be the number of jars of honey the beekeeper sold.

This means that the beekeeper has a loss of $5.

Answer:

did u get the answer??

Step-by-step explanation:

if so plz help

Answer:

Step-by-step explanation:

51

Answer:

17x3=51

Step-by-step explanation:

The numbers that make the result a whole number are 20 for x and 2 for the gap number.

The first step would be to identify the result of this expression and then add the number that can make this result a whole number.

Based on this, the possible values for x and the number in the gap are:

Learn more about Numbers in: https://brainly.com/question/17429689

Answer:55.56

Step-by-step explanation:

Answer:

Yes she can. 59 is 4.9 feets

Step-by-step explanation:

searched it on goog

Answer: Lower-right corner  [tex]3^7 \times \frac{1}{3^4}[/tex]

Explanation:

We use the rule that

[tex]a^{-b} = \frac{1}{a^b}[/tex]

The negative exponent tells us to apply the reciprocal if we want the exponent to be positive.

In this case, a = 3 and b = 4

So,

[tex]a^{-b} = \frac{1}{a^b}\\\\3^{-4} = \frac{1}{3^4}[/tex]

which is why overall,

[tex]3^7\times 3^{-4} = 3^7 \times \frac{1}{3^4}[/tex]

Answer:

5

Step-by-step explanation:

21-6=15/3=5

Answer:

5 tickets

Step-by-step explanation:

21-6=16 16 divided by 3= 5.333 so about 5 tickets

Answer:

2^6

Step-by-step explanation:

The equivalent of the expression, 2 x 2 x 2 x 2 x 2 x 2  is 2⁶.

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation.

An equivalent expression is an expression that has the same value or worth as another expression, but does not look the same.

Therefore, let's simplify the expression to find its equivalent as follows:

2 x 2 x 2 x 2 x 2 x 2 = 2⁶

learn more on expression here: brainly.com/question/111385

#SPJ6

Answer:

y =3 x

Step-by-step explanation:

The standard equation of a line in point slope form is expressed as;

y -y0 = m(x-x0)

m is the slope

(x0, y0) is the point on the line

Given the line 3x - y = 5

Get the slope

- y = -3x + 5

y = 3x - 5

Slope m  = 3

Substitute m = 3 and (-1, -5) into the given formula

y - (-5) = 3(x-(-1))

y+5 = 3(x+1)

y + 3 = 3x+3

y = 3x + 3 - 3

y = 3x

Hence the equation in slope intercept form is y =3 x

Nina's grandmother earn $288.75 interest after 21 months.

What is Simple interest?

The cost of borrowing money without accounting for the effects of compounding is called Simple interest.

Given that;

Principal amount (P) = 3,000

Rate (R) = 5.5%

Time (T) = 21 month = 1 9/12 years

Now, The formula for the interest is;

Interest = P × R × T / 100

Where, P is the principal amount of money, R is the interest rate, T is the time.

Substitute all the values we get;

Interest = 3,000 × 5.5 × 1 9/12 / 100

            = 55 × 21 / 4

            = 288.75

Thus, Nina's grandmother earn $288.75 interest after 21 months.

Learn more about the simple interest visit:

https://brainly.com/question/20690803

#SPJ5

Answer: 1.5 liters

Step-by-step explanation:

3.80 divided by 4= 0.95     0.95 x 3= 2.85

2.85 is more than 2.70

mark me brainliest

Answer:

89

Step-by-step explanation:

Answer:

AC = XY

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. The types of triangles are scalene triangle, equilateral triangle, right angled triangle and obtuse triangle.

Two triangles are said to be congruent if all the three sides and three angles of one triangle is equal to the three sides and three angles of the other triangle.

In Δ ABC and ΔXYZ ,∠B=∠X=90. This means that triangle ABC and triangle XYZ are right angled triangle since one of their angles is 90 degrees.

The hypotenuse is the side opposite to right angle (90 degrees).

Therefore AC is the hypotenuse of triangle ABC and YZ is the hypotenuse of triangle XYZ.

If the hypotenuse and one leg of a right angled triangle is equal to the hypotenuse and leg of another right angled triangle, then the two triangles are congruent by RHS rule.

Since BC = XY, for Δ ABC congruent to ΔXYZ by R.H.S condition, the hypotenuse have to be equal, i.e. AC = XY

Answer:

The slope is 3.

Step-by-step explanation:

The equation for slope is either [tex]\frac{y2-y1}{x2-x1}[/tex] or [tex]\frac{y1-y2}{x1-x2}[/tex]. So this should be [tex]\frac{19-13}{6-4}[/tex], which is 3.

Answer:

Slope =

6

—

2

Step-by-step explanation:

First find the rise over run

Second use the format

Y2-y1

———-

X2-x1

Using the format you will get this

19-13

——

6-4

Next solve

Which then you get

6

—

2

Answer:

1. b

2. c

3. d

4. a

5. e

Step-by-step explanation:

When the equation is written in slope-intercept form of ;

y = mx + b, then m is the slope and b is the y-intercept

In this case;

1. y= -7/6x + 1 --------- m= -7/6 ; b = 1 --------b

2. y=7/6x -1 ------------m = 7/6 ; b = -1 ---------c

3. y= x-7/6 -------------m = 1 ; b = -7/6 ---------d

4. y= -x -7/6 ----------m =-1 ; b = -7/6 ----------a

5. -x + 6/7 ------------m = -1 ; b = 6/7---------e

Answer:

Step-by-step explanation:

dont need to graph the center dot, its just the origin

Answer:

We conclude that the constant of proportionality between the number of shirts and how much they cost is:

k = 8

Hence, option 'D' is correct.

Step-by-step explanation:

We know that when 'y' varies directly with 'x', we get

y ∝ x

y = kx

k = y/x

where k is called the constant of proportionality

Given the points

For (10, 80)

substituting y = 80 and x = 10 in the equation

k = y/x

k = 80/10 = 8

For (20, 160)

k = y/x

k = 160/20 = 8

For (50, 400)

k = y/x

k = 400/50 = 8

It is clear that the value of k is the same for all the points.

Thus, the value of k = 8

Therefore, we conclude that the constant of proportionality between the number of shirts and how much they cost is:

k = 8

Hence, option 'D' is correct.

Answer:

135 cupcakes

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

If a line is parallel to a side of the triangle and intersects the other 2 sides then it divides those sides proportionally, that is

[tex]\frac{2}{4}[/tex] = [tex]\frac{x-1}{6}[/tex] ( cross- multiply )

4(x - 1) = 12 ( divide both sides by 4 )

x - 1 = 3 ( add 1 to both sides )

x = 4