Help! I need to solve #17 and the Challenge! The first one to answer, ill will mark as brainliest!

Answer: x=-1 and y=0 .

Step-by-step explanation:

The given linear equations:

[tex]10y + 9x = -9\ ...(i)\\\\10y + 5x= -5\ ...(ii)[/tex]

Subtract (ii) from (i) , we get

[tex]10y+9x-(10y+5x)=-9-(-5)\\\\\Rightarrow\ 10y+9x-10y-5x=-9+5\\\\\Rightarrow\ 4x=-4\\\\\Rightarrow\ x=-1[/tex]

Put value of x in (i), we get

[tex]10y+9(-1)=-9\\\\\Rightarrow\ 10y-9=-9\\\\\Rightarrow\ 10y=-9+9=0\\\\\Rightarrow\ y=0[/tex]

Hence, x=-1 and y=0 .

Answer:

3) 33 bags

Step-by-step explanation:

she needs 54, but already has 4.5 cubic feet of soil, so really, Maya only needs 49.5 cubic feet of soil.

If each bag contains 1.5 cubic feet of soil, 49.5 feet needed /1.5 feet per bag = 33 bags.

Answer:

2. (2 + x ) ( 8 + x)

Step-by-step explanation:

x^2 + 10x + 16

Factor

What two numbers multiply to 16 and add to 10

8*2 = 16

8+2 = 10

(x+8)(x+2)

Answer:

11 people is correct

Step-by-step explanation:

Answer:

-974.765

Step-by-step explanation:

1.235 -976. Try to get a calculator if that helps!:)

Answer:

6

Step-by-step explanation:

Answer:

Complete the division.

The quotient is 3x2 +  

-2

x +  

5

.

Step-by-step explanation:

edg 2020

Answer:

14

Step-by-step explanation:

17 - 5 = 12 / 4 = 3

every 3 points is 1/4 of the way from X to Y

3 x 3 = 9/12 = 3/4 of the way

(starting point) + (3/4 of the way) = point

5 + 9 = 14

Answer:

a: 5

b: 79

c: 93

d: 100

Step-by-step explanation:

Answer:

The person above me is correct <3

Step-by-step explanation:

Answer:

The density of the material is approximately 6.79 ounces per litre

Step-by-step explanation:

We note that 1 fluid ounce = 26.5735 mililiter

The mass of the material for every 9 fluid ounces of volume = 46 grams

Therefore, the density of the material is given as follows;

Density = Mass/Volume = 46 grams/(9 × 26.5735 mililiter)

Density =  46 grams/(239.1615 mililiter)  

1 gram = 0.035274 ounces

46 grams = 46 × 0.035274 ounces = 1.622602 ounces

1 mililiter = 0.001 litre

239.1615 mililiter = 0.2391615 litre

The density in ounces per liter is therefore;

Therefore;

The density of the material =  46 grams/(239.1615 mililiter) = 1.622602 ounces/0.2391615 litre

The density of the material ≈ 6.785 ounces/litre which is 6.79 ounces/litre to the nearest hundredth.

Answer: the correct answer is 6.10 ounces per liter

Step-by-step explanation:

Answer: Each player will get 9 cards

Step-by-step explanation:

Given, there are 6 players and 58 cards.

i.e. Total players = 6 and total cards = 58

If each player is given the same number of cards, then by the division operation the number of cards each player will get = ( total cards) ÷ ( total players)

[tex]=58\div6[/tex]    

[tex]=9\dfrac{2}{6}[/tex]

Hence, each player will get 9 cards ( 2cards will be left).

Answer:

[tex]k=-66[/tex]

Step-by-step explanation:

So we are given two values:

[tex]g(4)=9 \text{ and } g(-11)=k[/tex]

They can be interpreted as: (4,9) and (-11,k).

So, we want to find the value of k such that the slope of the line between the two points would be 5.

Recall the slope formula. It is:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Let (4,9) be x₁ and y₁ and let (-11,k) be x₂ and y₂. Substitute 5 for m. Therefore:

[tex]5=\frac{k-9}{-11-4}[/tex]

Simplify the denominator:

[tex]5=\frac{k-9}{-15}[/tex]

Multiply both sides by -15. The right side cancels:

[tex]-15(5)=(-15)\frac{k-9}{-15}\\ -75=k-9[/tex]

Now, add 9 to both sides. The right side cancels.

[tex](-75)+9=(k-9)+9\\k=-66[/tex]

Therefore, k is -66.

Answer:

28.27530

Step-by-step explanation:

Given the expression 62.834 × 0.45, to solve this expression, first we need to convert it to fraction

62.834 = 62834/1000

0.45 = 45/100

Take the product if the resulting fraction:

62.834 × 0.45 = 62834/1000 × 45/100

= (62834×45)/1000×100

= 2,827,530/100,000

= 28.27530

Answer:28.27530

Step-by-step explanation:Given the expression 62.834 × 0.45, to solve this expression, first we need to convert it to fraction

62.834 = 62834/1000

0.45 = 45/100

Take the product if the resulting fraction:

62.834 × 0.45 = 62834/1000 × 45/100

= (62834×45)/1000×100

= 2,827,530/100,000

= 28.27530

Answer:

When a transformation doesn't change the side lengths and angle measurements

of a shape, we call this preserving length and angle measurement. These are rigid

transformations . Translations, rotations, and reflections are all rigid

transformations .

Answer:

the last answer is correct

Step-by-step explanation:

(a, b) to (b, a)

Answer:

refer the attachment......

Step-by-step explanation:

hope this works

Answer: The difference of 6 times a number m and 2

Step-by-step explanation:

The way to write this expression is:

The difference of 6 times a number m and 2.

Answer:

10.3125 (NOT  ROUNDED)

Step-by-step explanation:

1. I changed it to decimals. 1/4 can easily be changed into a decimal.

2. I set 1/4 = x/100. Then cross multiplied. That would give you 4x = 100.

3. Now you would simplify that. x would be 25. So its 25/100 wich then turns to .25.

4. Now you are going to replace them so it would be 1.25 and 8.25.

5. To find out how much milk chocolate there was you would multiply 1.25 and 8.25.

6. That's your final answer

Answer:

True

This is so because the line is drawn from points on both sides of the line to be bisected, which are equidistant from the ends and the center of the line to be bisected line giving an angle of 90° at the intersection of both lines.

Step-by-step explanation:

The steps for constructing the bisector of a line segment includes the following

1) The compass is placed at one end of the line segment

2) The width of the compass is adjusted so as to be wider than half the length of the line segment

3) Arcs are now to be drawn above and below the line segment to be bisected

4) From the other end of the line to be bisected with the same compass width, draw arcs above and below the line segment to be bisected to intersect the previous arcs drawn above

5) With a straight edge draw a line through the intersection of the arcs to draw the bisector

The line so drawn is the perpendicular bisector because it is drawn from points on both sides of the bisected line equidistant from the ends and the center of the bisected line.

Answer:

The answer is 15

Step-by-step explanation:

For x = 5 substitute the value of x that's 5 into the expression

We have

We have the final answer as

Hope this helps you

Answer:

y = 16

Step-by-step explanation:

Given y varies inversely as x then the equation relating them is

y = [tex]\frac{k}{x}[/tex]

To find k use the condition y = 14 when x = 8, thus

14 = [tex]\frac{k}{8}[/tex] ( multiply both sides by 8 )

112 = k

y = [tex]\frac{112}{x}[/tex] ← equation of variation

When x = 7, then

y = [tex]\frac{112}{7}[/tex] = 16

Answer:

For a bake sale, addison sells 14 cupcakes for 1.50 dollars each, charli sells 12 cupcakes for 2.00 dollars each. How much money did they make together?

14(1.50)+12(2.00)

21+24= 45

They make 45 dollars together

Step-by-step explanation:

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Explanation:

The given graph passes through (0,2) and (2,5)

The slope of this line is

m = (y2 - y1)/(x2 - x1)

m = (5-2)/(2-0)

m = 3/2

Since the y intercept is b = 2, we go from y = mx+b to y = (3/2)x+2, which is the equation of the graphed line shown.

Any parallel line will have the same slope, but a different y intercept.

-------------------

The parallel line must pass through (x,y) = (3,2). We'll use these coordinates along with m = 3/2 to find the y intercept b

y = mx+b

2 = (3/2)(3)+b

2 = 9/2+b

2-9/2 = b

4/2 - 9/2 = b

-5/2 = b

b = -5/2 ... is the new y intercept

The equation of the parallel line is y = (3/2)x-5/2, which is in slope intercept form

-------------------

Let's convert to standard form

y = (3/2)x-5/2

2y = 3x-5 .... multiply everything by the LCD 2 to clear out fractions

2y+5 = 3x

3x = 2y+5

3x-2y = 5 ... is the equation in standard form of the parallel line

-------------------

As a check, we can plug (x,y) = (3,2) into that last equation above to get

3x-2y = 5

3*3-2*2 = 5 ... replace x with 3, replace y with 2

9-4 = 5

5 = 5

Confirming that (x,y) = (3,2) is on the line.

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Work Shown:

15n+30 = 75

15n+30-30 = 75-30 ... subtract 30 from both sides

15n = 45

15n/15 = 45/15 .... divide both sides by 15

n = 3

the answer is 11

11x3= 33

33-12=21

Answer:

A {(3,2), (4,5), (6,8),(7,5)}

Answer:

Reflexive property

Step-by-step explanation:

The property means that a real number is always equal to itself. For example, x=x. It works for all real numbers and is pretty simple. 3=3, 7.5=7.5 and etc

Answer:

71 & 25 m

Step-by-step explanation:

a • b = 1775

2a + 2b = 192

substitution:

a = 1775/b

2(1775/b) + 2b = 192

distribute the 2

(3550/b) + 2b = 192

subtract 192 from both sides

(3550/b) + 2b - 192 = 0

transform the expression by dividing all terms by b

(3550 + 2b² - 192b) / b = 0

when the quotient of expressions equals 0, the numerator has to be 0

3550 + 2b² - 192b = 0

reorder the terms

2b² - 192 b + 3550 = 0

divide by sides by 2

b² - 96b + 1775 = 0

rewrite -96b as a difference using factoring X

b² - 25b - 71b + 1775 = 0

factor the expression (factor out b)

b (b-25) - 71b + 1775

factor out b - 25 from the expression

(b - 25) (b - 71) = 0

if b = 25 or 71, then a = 71 or 25

71 & 25 m

Answer:

1647

Step-by-step explanation:

Given the following information:

Length of traffic = 8 miles

Average Length of vehicles on the road :

Cars = 14.5 feets

Trucks = 21 feets

18 Wheeler tractor = 73 Feets

% distribution of the different vehicles :

Cars = 70% = 0.7

Trucks = 20% = 0.2

18 wheeler tractor = 10% = 0.1

Distance between vehicles = 4feets

Number of vehicles stuck in the traffic :

Let number of vehicles = v

Summation of (number of vehicles * length of each vehicle) + distance between each vehicle = Length of traffic

Total distance between each vehicle = 4(v-1)

(0.7v * 14.5) + (0.2v * 21) + (0.1v * 73) + 4(v - 1) = 8 miles

1 mile = 5280

8 miles = (5280 * 8) = 42,240

10.15v + 4.2v + 7.3v + 4v - 4 = 42240

25.65v = 42240 + 4

25.65v = 42244

v =42244 / 25.65

v = 1646.939

v = 1647.

======================================================

Explanation:

Solve each inequality for x

[tex]5x \ge 20[/tex] solves to [tex]x \ge 4[/tex] after dividing both sides by 5

[tex]x+14 < 16[/tex] solves to [tex]x < 2[/tex] after subtracting 14 from both sides

The original system solves to [tex]x \ge 4 \ \text{ or } \ x < 2[/tex] which is the same as [tex]x < 2 \ \text{ or } \ x \ge 4[/tex]

So x is either less than 2, equal to 4, or larger than 4.

The graph that fits the description above is Choice B. We have an open hole at x = 2 to show we don't include this value. In contrast, there's a filled in hole or closed circle at x = 4 to include this value. The blue shaded region is the set of all possible x values, so we shade to the left of x = 2 and to the right of x = 4.

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Side note: I don't know why your teacher thought it was a good idea to make the answer choice tiles be larger than the actual problem itself. It should be the other way around. Though to be fair, it's probably a design choice that your teacher wasn't involved in.