50 POINTS+BRAINLIEST:8th grade systems of equations word problem-explain steps with simple language, answers for the sake of points will get reported :))

Answer:

68.42

Step-by-step explanation:

We know that when we add the lengths of all of the desks together, the total is 214.62. Based on that information, we can set up the following equation: 67.94 + 78.26 + x = 214.62. From there, all you have to do is add 67.94 + 78.26 to get 146.2. Lastly, you simply do 214.62 - 146.2 to get 68.42. Hope this helps!

Answer:

68.42

Step-by-step explanation:

We know that when we add the lengths of all of the desks together, the total is 214.62. Based on that information, we can set up the following equation: 67.94 + 78.26 + x = 214.62. From there, all you have to do is add 67.94 + 78.26 to get 146.2. Lastly, you simply do 214.62 - 146.2 to get 68.42. Hope this helps!

Answer:

Cold length 7 days or longer with medicine taken = 0.24

Cold length less than 7 days with medicine taken = 0.76

Cold length 7 days or longer without medicine taken = 0.69

Cold length less than 7 days without medicine taken = 0.31

Step-by-step explanation:

Answer:

150 is if you buy them separately but 150-25%=112 so 150-112=38 so students would save $38  

Step-by-step explanation:

he made that package so that more people would go to his lessons know that there was a discount going on and more people would choose his lessons over people who don't have discounts.

Answer:

1- Separately - 150

2- students would save 38

Answer:  [tex]\sqrt{\frac{9}{4} }[/tex]

Step-by-step explanation:

This is what it is as a mixed number

[tex]\sqrt{2.25}[/tex]

= [tex]\sqrt{2\frac{1}{4} }[/tex]

= [tex]\sqrt{\frac{9}{4} }[/tex]

If you want it written in exponential form it would look like this:

[tex](\frac{9}{4}) ^{\frac{1}{2} }[/tex]

Answer:

1.5 in decimal and 3/2 or 1 1/2 in fraction

Step-by-step explanation:

hope this helps:)

Answer:

  D.  8/7

Step-by-step explanation:

A probability value is always in the interval [0, 1], between 0 (can't happen) and 1 (certain to happen).

__

A value of 8/7 will not be a probability. Statement D does not correctly use probability.

b

Step-by-step explanation:

because I am not sure what to do with my life

Answer:

If it is a perfect square, k=0 in the form y=a(x-h)^2+k.

Step-by-step explanation:

x^2-4x+4=(x-2)^2, meaning that the vertex is at the point (2,0).

Hope this helped :)

it would be less because rt42 is closer to halfway between 6 and 7

Answer:

Less that

Step-by-step explanation:

rt42 is closer to halfway between 6 and 7

Answer:

Step-by-step explanation:

A: The starting point is located in Quadrant Q and the finishing point will be located in Quadrant S.

B: The checkpoint is in Quadrant P so it is in the middle of the course. The course will go from Quadrant Q to Quadrant S clockwise.

Answer:

Parallel lines are lines that never touch each other

Step-by-step explanation:

they are straight and go on forever without intersecting (crossing)

Answer:

parallel lines are always the same distance apart from each other at all times, they never come in contact with one another

Step-by-step explanation:

They never intersect. It is difficult to explain, but you can look at examples on the internet. Hope this helps, have a good day, and good luck with your summer homework and good luck in 6th grade :)

Answer:

(x - 2)² + 0

Step-by-step explanation:

Using x² - 4x + 4

(x² - 4x + 4)

x² - 4x + (-2)² - (-2)² + 4 (complete the square)

(x - 2)² - ( -2)² + 4 (use the binomial formula)

(x - 2)² + 0

Vertex point at (2,0)

Answer:

(x - 2)² + 0

Step-by-step explanation:

Step-by-step explanation:

Using x² - 4x + 4

(x² - 4x + 4)

x² - 4x + (-2)² - (-2)² + 4 (complete the square)

(x - 2)² - ( -2)² + 4 (use the binomial formula)

(x - 2)² + 0

Vertex point at (2,0)

Answer:

I think C

Step-by-step explanation:

A number times fifteen would be n • 15 or just n15.
The reason it is not 15n is because it asks a "number" which in this case is represented by  the letter n. That letter is now multiplied (times) by 15. So therefore the number "n" times 15 is n15.

Please hit brainliest or thanks, it would help me out.

#Learnwithbrainly

Answer:

-1

Step-by-step explanation:

-40/7+8-23/7

= -40/7+8-23/7

= 16/7-23/7

= -1

Answer:

2 multiplied by 4. Then add 3, and add 4. Then multiplied by 5.

Answer:

There are 23 cats for every 36 dogs at the city pound

Step-by-step explanation:

This means that for every group of 92 cats at the city compound there is a group of 144 dogs. So it also means that for every group of 23 cats there is a group of 36 dogs.

92 to 144 or 92/144 = 23/26  or 23 to 36

Answer:

8:12

around every 8(7.6)cats there will be 12 dogs

Answer: C

Step-by-step explanation:

A says the polygon's measurements are 283 inches by 283 inches. Is it Correct? No. If we multiply these numbers we get 80,089 inches squared, which is not equal to our actual surface of 283 inches squared.

B says the polygon's volume is 283 inches cubed, which is not correct because it says that a certain measurement of a polygon is 283 inches squared, not cubed, which means we got a surface/area, not a volume.

C says that our 283 inches squared area could fit 283 one-inch by one-inch squares, which is correct because one-inch by one-inch is an one inch squared area, if we multiply this one-inch squared by the number 283, we get 283 inch squared area.

And D couldn't be because the answer is C.

Hope I Helped!

Answer:

38

Step-by-step explanation:

for this table, we can add up all of the students who chose flying (both the "male" and "female" students)

26 + 12 = 38

So, 38 students chose flying as their superpower.

hope this helps!!

Answer: C

Step-by-step explanation:

Step 1: Find the unit rate (tomatoes  per  bowl)

Last time, the ratio was 9:12, or 9 tomatoes for 12 bowls of soup. To finndd the unit ratet, dividde the ffirst given unnit by the 2nd. In this case, tomatoes is the first unit, and bowls is the second. So the unit rate is:

9÷12= 0.75, or 3/4 of a tomato  per bowl of soup.

Now, the  ratio is 6:8, or 6 tomatoes for 8 bowls of soup. The unit rate is

6÷8= 0.75, or 3/4of a tomato per bowl of soup.

Step 2: Compare

As you can see, the number of tomatoes per bowl of soup hasn't changed at all. So the answer is C.

Hope this helps :)

Answer:

Todays’s soup will taste the same.

Step-by-step explanation:

9 tomatoes for every 12 cups of soup- ratio= 9/12=3/4

6 tomatoes for every 8 cups of soup- ratio=6/8=3/4

They both end in the same ratio, which is 3/4.

Answer:

Step-by-step explanation:

Answer:

well, both numbers are odd, so their sum will be even.

2 is the smallest prime divisor.

Answer:

I believe it is A

Answer:

A) (x+10)(x+4) = ?

B) (x+10)(x+4) = 112, solve for x

Step-by-step explanation: you multiply the two equations to get the area.

Answer:

a)[tex](x^{2} +14x+40)ft^{2}[/tex]

b)14ft, 8ft

Step-by-step explanation:

a) Area of Rectangle = Length x Breadth

= [tex](x+10)(x+4)\\=x^{2} +4x+10x+40\\=(x^{2} +14x+40) ft^{2}[/tex]

b) Given Area of rectangle = [tex]112ft^{2}[/tex]

[tex]x^{2} +14x+40=112\\x^{2} +14x-72=0 (Quadratic Equation)\\\\[/tex]

Quadratic Equations: [tex]ax^{2} +bx+c = 0\\[/tex]

In this case, a = 1, b = 14, c = -72

[tex]\frac{-b+/-\sqrt{b^{2}-4ac } }{2a} \\= \frac{-14+/-\sqrt{14^{2} 4(1)(-72)} }{2(1)} \\= 4 or - 18 (reject)[/tex]

We reject negative values.

so x = 4,

The length of table = (x+10) ft = 4+10 = 14ft

The breadth of the table = (x+4) ft = 4 + 4 = 8ft

Answer:

x = 7

or

7 + 10 + 4 = 7 + 10 + 4

Step-by-step explanation:

( ? + 10 ) + 4 = 7 + ( 10 + 4 )

x + 10 + 4 = 7 + 10 + 4  (the answer is just 7)

x + 14 = 21

x = 21 - 14

x = 7

Answer:

2

Step-by-step explanation:

proportional relationship: must be straight line and go through (0, 0).

[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \: C. 2 [/tex]

____________________________________

[tex] \large \tt Solution \: : [/tex]

Proprtional relationship can be depicted as :

[tex]\qquad \tt \rightarrow \: y \propto x[/tex]

[ to get rid of proportionality sign, we use constant c ]

[tex]\qquad \tt \rightarrow \: y = cx[/tex]

Now, conclusion can be made that the shown equation represents a straight line.

And the graph has two straight lines, which means proportional relationship is shown by Two members

Answered by : ❝ AǫᴜᴀWɪᴢ ❞