What is the solution to the system of equations below?
(Hint: Sole using substitution)
y=2x+1
3x + y=-9
The solution is

Answer:

radius=6.65cm

Step-by-step explanation:

circumference=41.78cm

2×22\7×r=41.78cm

r=41.78×7\44

r=6.65cm

Answer:

400 minutes

Step-by-step explanation:

Amelia speed = 80 minutes

raj = ?

80 ×5 =400

Answer:

(x+24)(x-2)=0

Step-by-step explanation:

2*-24=-48

factorise -48 to get 24 and -2 (which will add up to 22)

Answer:

  (c)  68 degrees

Step-by-step explanation:

The sum of angles in a triangle is 180°.

  50° +62° +x = 180°

  x = 68° . . . . . . . . . . subtract 112° from both sides

You can use the weight of the chocolate bar given and find its 37% to get the weight of cocoa used in it.

The weight of cocoa in the given chocolate bar is 35.52 grams.

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

Since weight of cocoa = 37% percent of chocolate bar's weight which is 96 gram,

Thus,

Thus,

The weight of cocoa in the given chocolate bar is 35.52 grams.

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Answer:

[tex]\large\boxed{{\sf \left \{ {{t_1 = -10} \atop {t_n = -2t_{n-1}}} \right. }}[/tex]

geometric sequence: [tex]\sf a_n = a_{n-1} \ x \ r[/tex]   where "r" is common ratio

Find "r" = second term ÷ first term = 20  ÷ -10 = -2

Recursive rule:

[tex]\boxed{\sf t_n = r(t_{n-1})}[/tex]

[tex]\large\boxed{{\sf \left \{ {{t_1 = -10} \atop {t_n = -2t_{n-1}}} \right. }}[/tex]

Answer:

61

Step-by-step explanation

sped

Answer: b=−10x−10.54

Step-by-step explanation:

Let's solve for b.
30.4x+b=3.4(6x−3.1)

Step 1: Add -30.4x to both sides.

b+30.4x+−30.4x=20.4x−10.54+−30.4x

Answer: b=−10x−10.54

Answer:

x > 1.42 or x > 17/12

Step-by-step explanation:

24x - 2 +2 >34

The -2 and +2 cancel out

24x > 34

Now, we need to get x alone

24x/24 > 34/24

x > 34/24

34/24 can be simplifed too 17/12 by dividing by 2

x > 17/12

So Jimmy spent more than $1.42 on his Fanta​

Let me know if you have any questions !

Answer:

See below ~

Step-by-step explanation:

a) There are 3 feet in one yard.

b) There are 12 inches in one foot.

c) Two abbreviations for inches is in. and ".

d) Two abbreviations for feet is ft. and '.

Answer:

D

Step-by-step explanation:

the given expression is equivalent to (4-3)y+8

The measure of angle 1 is 71° ⇒ c

Step-by-step explanation:

Look to the attached figure:

∵ Line l intersect line n

∴ Angle 63° and angle (15x - 3) are linear pair

- The sum of the linear pair angles is 180°

∵ 63° + (15x - 3)° = 180°

- Add like terms

∴ 60 + 15x = 180

- Subtract 60 from both sides

∴ 15x = 120

- Divide both sides by 15

∴ x = 8

∵ Line m intersect line n

∴ Angle (8x + 7) and angle 1 are vertical opposite angles

- The vertical opposite angles are equal in measure

∴ m∠1 = 8x + 7

∵ x = 8

- Substitute the value of x to find m∠1

∴ m∠1 = 8(8) + 7

∴ m∠1 = 64 + 7

∴ m∠1 = 71

The measure of angle 1 is 71°

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You can learn more about the parallel lines in

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Answer:

four squares or 3 hexagons

Answer:

Step-by-step explanation:

8(7n - 2) - 6(7n + 1)

use the distributive property: a(b + c) = ab + ac

= 8 · 7n + 8 · (-2) + (-6) · 7n + (-6) · 1

= 56n - 16 - 42n - 6

combine like terms

= (56n - 42n) + (-16 - 6)

= 14n - 22

Answer:

=> 14n - 22

Step-by-step explanation:

8(7n-2) -6(7n+1)

=> 56n - 16 - 42n -6

=> 14n - 22

Answer:

Firstly, the moon keeps changing its shape with 4 distinct moon phases that depend on the position of the moon and also on the position of the Earth. The moon orbits around the planet Earth, and the Earth orbits around the Sun.

Step-by-step explanation:

Answer:

what is the process

Step-by-step explanation:

Two angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line.

Two angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line. Those two-two angles are two pairs of supplementary angles. That means, that if supplementary angles are aligned adjacent to each other, their exterior sides will make a straight line.

ABCD is an inscribed polygon ⇒ Given

m∠ABC = 2(m∠D)                      ⇒ Inscribed Angle Theorem

m∠CDA = 2(m∠B)                      ⇒ Inscribed Angle Theorem

m∠ABC + m∠CDA = 360°         ⇒ The sum of arcs that make a circle is 360°

2(m∠D) + 2(m∠B) = 360°           ⇒ Substitution property

m∠D + m∠B = 180°                    ⇒ Division Property of Equality

Hence, ∠D and ∠B are supplementary angles

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The histogram and stem and leaf plot would be the best choices if you were only concerned about the shape and spread of the data.

It is defined as the depiction of numerical data in a graph using a bar with no space. The histogram depicts the approximate distribution of the data.

We have data:

7, 37, 45, 78, 24, 97, 12, 17, 43, 56, 69, 63, 76, 23, 50, 38, 45, 57, 4

We know on the left side skewed histogram has more data on the right and on the left side, there are less data. It is also called a negatively skewed histogram.

On the right side skewed histogram, there is less data on the right side and more data on the left side. It is also called a positive histogram.

Thus, the histogram and stem and leaf plot would be the best choices if you were only concerned about the shape and spread of the data.

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Answer:

-34b4

Step-by-step explanation:

Since the variables are the same b4, you just add the constants (-16 & -18).

A company is tracking how many likes it receives for a new product they have posted online. The total estimated likes over the four-day period is 580.

The addition is one of the mathematical operations. The addition of two numbers results in the total amount of the combined value.

A company is tracking how many likes it receives for a new product they have posted online.

So far they have received 499 likes on Day 1,

On Day 2 they received 239 likes,

154 on Day 3,

92 on Day 4.

If they estimate each day's total to the nearest ten.

Then it will become 100 likes on Day 1,

On Day 2 they received 240 likes,

150 on Day 3,

90 on Day 4.

The total estimated likes over the four-day period

= 100 + 240 +150 + 90

= 580

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Answer:

No the graph is not a function

Step-by-step explanation:

If you draw vertical lines onto the graph, multiple points will hit it.

Answer:

This graph is not a function

Step-by-step explanation:

The input x is used more than once

it is not a parabola

Answer:

12/40×100= 30%

Step-by-step explanation:

12/40×100 = 12/2×5 =6×5= 30%

That is the differnce between the 2 numbers and it is in a negative because the second number was bigger than the first number so if you don't need the negative don't put it in your answer

-56.22 is the difference between 25 and  [tex]81\frac{2}{9}[/tex]

A fraction represents a part of a whole.

A proper fraction has a numerator that is less than its denominator .

An improper fraction has a numerator greater than its denominator.

An improper fraction is always greater than one whole.

We need to find the difference between 25 and of [tex]81\frac{2}{9}[/tex]

Difference is nothing but subtraction. We need to subtract  [tex]81\frac{2}{9}[/tex] from 25

25 - [tex]81\frac{2}{9}[/tex]

25-731/9

25×9-731/9

225-731/9

-506/9

=-56.22

Hence -56.22 is the difference between 25 and  [tex]81\frac{2}{9}[/tex]

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[tex]\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]

              Solve the Inequality.

[tex]\blue{\textsf{\textbf{\underline{\underline{Answer:-}}}}[/tex]

              x<-4

[tex]\blue{\textsf{\textbf{\underline{\underline{How\:to\:Solve:-}}}}[/tex]

                      First, add 6x on both sides:

-2x+3+6x<-13

Add the x's:

4x+3<-13

Now, subtract 3 on both sides:

4x<-13-3

4x<-16

Divide by 4 on both sides:

x<-4

So the values of x that are less than -4 will make the given inequality true.

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4.  B. 2 yards

5. C. 440 Millimeters

6.  2000 milliliters

Answer:

48

Step-by-step explanation:

1 gallon=16 cups. So, 3x16=48 cups.

Answer:

The range is 5 minutes.

Step-by-step explanation:

To find the range of a data set, simply subtract the lowest value from the highest value.

46 - 41 = 5

Hope this helps

Answer:

grab

Step-by-step explanation:

hahahahaha

Answer:

The area of the shape is 49.

Step-by-step explanation:

The shape is a trapizoid, so we use the formula: I've attached an image below.

H stands for height, the height is 7.  b1 is 3 (the first base length) and b2 is 11 (the second base length.)

Now, we plug it into the formula.

A=1/2(7)(3+11)

A= 49.

Hope this helps. :)