Mathematics Middle School

please show your work

Answers

Answer 1

Answer:

x=-2

y=9

Step-by-step explanation:

Multiply one of the equations to get negative terms with equal y coefficients. Add them together then solve for x.

Substitute x in one of the equations then solve for y.

You can check your answer by substituting x and y into one equation and solving to obtain the same answer on the right side of the equation.

Related Questions

my last question to my assigment ;-; (this was assigned today)

Answers

scale factor = 1.2
the missing side is 48

Which figure can be formed from the net?

Answers

Answer:

The top right one with the measurements 8mm x 8mm for the base and 10 mm for the slant height

Step-by-step explanation:

The net has a square base so that means the net forms a square based pyramid
Hope this helps :)

Answer:

The answer is the second figure on the top of the page.

Step-by-step explanation:

That's because the square is 8mm x 8mm

so the figure that has a square and 8mm x 8mm is the second one in the first row.

What is the theorem that states a perpendicular line to the hypotenuse splits the triangle into two similar right triangles?

I forgot and I need this for statement-reason proof. an answer would be appreciated

Answers

Answer:Pythagoras

Step-by-step explanation:

Please I need help with these 2 questions!!

Answers

Answer:

Step-by-step explanation:

5. A straight line (view that attached graph)

6. y = x² + (-3) is equivalent to y = x² - 3

y = x² - 3

y = 0² - 3

y = 0 - 3

y = -3

(0, -3)

y = x² - 3

y = 1² - 3

y = 1

y = -2

(1, -2)

y = x² - 3

y = 2² - 3

y = 4 - 3

y = 1

(2, 1)

y = x² - 3

y = 3² - 3

y = 9 - 3

y = 6

(3, 6)

So the answers are: -3, -2, 1, 6

Hope this helps!

64 is 4 times the difference between Sarah's age, a, and 44. Assume Sarah is older than 44.

Write an equation to determine Sarah's age (a).

Find Sarah's age.

Answers

Answer:64/4+44=a

Sarah is 60 years old

Step-by-step explanation: 64/4 =16. 44+16=60

Multiply this difference by 4, and you get 64 as the result. So:

64 = 4(a - 44)

Now you need to balance the equation. Do the same operation to both sides. To begin, divide both sides by 4.

64/4 = 4(a - 44)/4 becomes

16 = a - 44 To get variables on one side and numerals on the other, add 44 to each side.

16 + 44 = a

60 = a. Sarah is 60 years old.

Point W is located at (−6,−6) and is rotated 180 degrees clockwise around the origin. What are the coordinates of Point W'?

Answers

Answer:

(6,6)

Step-by-step explanation:

Have a good day! Hope this helped :)

Help me fast please pic of problem below!!!!! NEED ANSWER IN 3 MIN!!!

Answers

Answer:

1/3*5/4=5/12

Step-by-step explanation:

the common denetominter for 3 and 4 is 12

3 goes into 12 4 times and 4 goes into 12 3 times

then you multiply the top by how many you have to mutiply by the bottom.

then you times that which equal 19/12 which in simplifest form is 5/12

Adele decorates pet food bowls and donates them to the animal shelter. Last month, she painted 5 bowls green for every 2 bowls she painted blue. If Adele painted 9 more bowls green than blue last month, how many bowls did she paint green?

Answers

Answer:

Step-by-step explanation:

Adele paints 5 bowls green for every 2 blue bowls. She painted 9 bowls this month, which would be about 3? blue bowls.

sowwy if this answer is wrong

i think it is right though bc it cant be a fraction of a bowl

Answer:

Step-by-step explanation:

i virified it

A server makes $200 a week working at a local restaurant. The server saves 35% of the
$200 weekly earnings each week for 4 weeks.If the server saves 7/8 of the 5th week’s
$200 earnings, how much money will the server have saved in total after the 5 weeks?

Answers

It would have saved 445$
Explanation: because for 4 weeks he saved 35% of 200$ which would be 70 and 70+70+70+70 280$ and the he saved 175$ on the fifth week because 7/8 of 200 is 175 so 280+175 is 445

brainliest if righttt

Answers

Answer:

1.6

Step-by-step explanation:

multiply the radius (0.8) by two

hope that helps

Answer:

d = 1.6 ft

Step-by-step explanation:

The diameter is twice the radius

d = 2r

The radius is .8 ft

d = 2 * .8

d = 1.6 ft

i need help on this how do i do this

Answers

Answer:

D 0.143

Step-by-step explanation:

this is the answer

Answer:

the answer should be d so I hope this helps you

question below......

Answers

Answer:

1/2

Step-by-step explanation:

If you look at the diagram, you can see that there are 36 samples in total.

One line contains 3 odd, and 3 even pairs. If there are 6 lines, 3*6 = 18.

So 18 samples are odd out of 36 in total. You can make this into 18/36 which is also equal too 1/2

Good luck!

How do the experimental and theoretical probabilities compare?

Answers

Answer:

Empirical probability is the probability observed in the chart above. The 8 was rolled 8 times out of 50 rolls. Theoretical probability is based upon what is expected when rolling two dice as seen in the sum table at the right. The experiment rolled more 8s than would be expected theoretically

Step-by-step explanation:

hope this helps if not let me now

Answer:

The experiment rolled more 8s than would be expected theoretically

Step-by-step explanation:

I'll give brainliest to whoever solves first correctly

Rewrite each equation without using absolute value for the given conditions. y=|x−3|+|x+2|−|x−5|, if x>5

Answers

Step-by-step explanation:

If x >5 then |x-3| is just x-3

|x+2| is just x + 2

|x-5| is also just x-5

so this just becomes (x-3) + (x+2) - (x-5)

These two right rectangular prisms have square bases and the same height, 8 cm. The length of s1, the sides of the base of the smaller prism, is 3 cm. The length of s2, the sides of the base of the larger prism, is 18 cm. How many times as great as V1, the volume of the smaller prism, is V2, the volume of the larger prism?
A)3
B)8
C)24
D)36
I tried doing the work, but I only got 4.5 after

Answers

Answer: D

Step-by-step explanation:

(3x3x8)/2 = 72

(18x18x8)/2 = 2592

2592/72=36 so the small one is 36 times larger than the small one.

Answer:

Step-by-step explanation:

Decide which measurement is greater. Place the correct symbol ( <, >, =) on the line between the measurements.
5 gallons _______ 18 quarts

1 pint 4 cups _____ 32 fl oz

3 pints ______ 8 cups

13 quarts _______ 4 gallons

4 quarts _______ 9 pints

Answers

The measurements that are greater using the correct symbol <, >, =) are:

5 gallons > 18 quarts1 pint 4 cups > 32 fl oz3 pints < 8 cups13 quarts < 4 gallons4 quarts < 9 pints

How to determine the greater measurement?

Gallons and quarts

1 gallon = 4 quarts.

So, we have:

5 gallons = 20 quarts i.e. 5 * 4

Hence,

5 gallons > 18 quarts

Pints and cups to fl oz

1 cup = 0.5 pints.

So, we have:

1 pint 4 cups = 1 pint + 2 pints

1 pint 4 cups = 3 pints

1 pint = 16 fl oz.

So, we have:

1 pint 4 cups = 16 * 3 fl oz

1 pint 4 cups = 48 fl oz

Hence,

1 pint 4 cups > 32 fl oz

Pints and cup

1 cup = 0.5 pints.

So, we have:

8 cups = 4 pints

Hence,

3 pints < 8 cups

Quarts and gallon

1 gallon = 4 quarts.

So, we have:

4 gallons = 16 quarts

Hence,

13 quarts < 4 gallons

Quarts and pints

1 quart = 2 pints.

So, we have:

4 quarts = 8 pints

Hence,

4 quarts < 9 pints

Answers

Answer:

decreases by 2 gallons

Step-by-step explanation:

hope it helps.

Answer:

Decreased by 2 gallons per day

Step-by-step explanation:

We can clearly see that , on 1st day it was 12 gallons and then on 2nd day it decreased by 2 gallons and becomes 10 gallon , and this cycle continues by decreasing of 2 gallons per day.

From 14 to 12 then 10 ..... and at last 4 gallons

Of the 72 people who have taken their seats at a seminar, 6 have brown hair. Considering this data, how many of the next 84 people to take their seats should you expect to be brown-haired?

Answers

Answer:

Step-by-step explanation:

72 divided by 6 = 12

84 divided by 12 = 7

A theme park owner charges
$17.50 per lunch meal purchased in the park. Which equation represents the relationship between the total cost in dollars, t, and the number of meals purchased, m

Answers

I think this is the equationT(m)= 17.50m

The volume of this right trapezoidal prism is 464.75 ft³.

What is the height, x, of the prism?

Enter your answer as a decimal in the box.

x = ft

Answers

Answer:

the answer is 14.3

Step-by-step explanation:

The height of the trapezoidal prism is 12.3 feet.

Formula for finding the volume of trapezoidal prism

[tex]v = \frac{1}{2}(b_{1} +b_{2} )hl[/tex]

where,

v is the volume of trapezoidal prism

[tex]b_{1}[/tex] and [tex]b_{2}[/tex] are the bases

h is the height of trapezoidal prism

l is length of the trapezoidal prism

According to the given question

We have to find the value of x which is the length of trapezoidal prism.

And,

Volume, v = 464.75 cubic feet.

From the given figure

here,

[tex]b_{1} = 5ft[/tex], [tex]b_{2} = 8ft[/tex], [tex]h = xft[/tex], and [tex]l = 5.8ft[/tex]

Substitute all these values in the formula of the volume of trapezoidal prism

⇒ 464.75 = [tex]\frac{1}{2}[/tex] ×(5+8)(5.8)x

⇒929.5 = 13×5.8x

⇒[tex]\frac{929.5}{(13)(5.8)}[/tex] = [tex]x[/tex]

⇒ x = 12.3 feet

Hence, the height of the 12.3 feet.

Learn more about the volume of trapezoidal prism here:

https://brainly.com/question/15301517

#SPJ2

Find the value for? to make the equation true. Enter the answer in the box.

Answers

Answer:

the answer is 0.35

Step-by-step explanation:

You need to multiply the denominator (10) by a hundred in order to add them together but you also need to multiply the number above that(0.35) and it becomes 3.5, that multiplied by 8 is 28. Hope it helped

. A right triangle is drawn inside a sphere, and the hypotenuse is 12 cm. What is the radius of the sphere? Round your final answer to the nearest hundredth.

Answers

Answer:

Step-by-step explanation:

The required measure of the radius of the sphere is given as 6 cm.

What is the triangle?

The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°

Here,
A right triangle is drawn inside a sphere, and the hypotenuse is 12 cm.
As we know, for a right triangle inscribed in a circle, the hypotenuse represents the circle's diameter,
hypotenuse = diameter
12 = diameter
radius = diameter / 2
radius = 12/2
radius = 6 cm

Thus, the required measure of the radius of the sphere is given as 6 cm.

Learn more about triangles here:
https://brainly.com/question/2773823

#SPJ2

PLS HELP! 15 POINTS!

Answers

Answer:

297

Step-by-step explanation:

3*3*3*11=297

How you find the area is by multiplying all of the sides

First, you have to find the areas of the individual shapes. Then you add all the areas together! Here is how you solve it :)

Can anyone help me with this question?

Answers

Mode of the data is .10%

Answer:

Its blue!

Step-by-step explanation:

Because most people picked blue. The blue has .35 which is the most out of every other color! Hope this helps

Paula had 1/3 of a yard of material. She needed to make 4 gifts using the material. What fraction of the material will be used for each gift. BRAINLIEST ON THE LINE

Answers

1/12 yards taken for each gifts

Explanation:

[tex]\ \sf total \ material \rightarrow \dfrac{1}{3}[/tex]

[tex]\ \sf each \ gift \ material \rightarrow \dfrac{1}{3} \div 4[/tex]

[tex]\ \sf each \ gift \ material \rightarrow \dfrac{1}{3} \ * \ \dfrac{1}{4}[/tex]

[tex]\ \sf each \ gift \ material \rightarrow \dfrac{1}{12}[/tex]

Total material=1/3ydNo of gifts=4

Material per gift:-

1/3/41/3(1/4)1/3(4)1/12yd

this was due like a week ago please help :)

Answers

the answer the problem would be 28

ILL GIVE BRAINLIEST TO THE CORRECT ANSER BUT ANSWER ASAP

Answers

C. 2^9 (Two to the ninth power)
It is C because there are Nine twos being multiplied which is 2^9 in exponential form. It is the same as 2•2•2•2•2•2•2•2•2 :)

Solve the problem by making a table and a graph.

Your older sister is working part-time at a novelty store. Some of the most frequently bought items are funny noses at $.29 each and buzzers at $.79 each. How much does a person owe if he/she buys 3 noses and 4 buzzers?
a.
$3.16
c.
$7.56
b.
$3.53
d.
$4.03

Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:B.3.53

Step-by-step explanation:29x3=.87 79x4=2.46 add them to get 3.53

Hope it helps.

D is the correct answer just took it on ape

A gallon of stain covers approximately 50 square feet of a wooden tabletop. Magaly has purchase 6 gallons of stain. Select all tabletop sizes that Magaly could fully cover if she must apply 3 coats to the porch.

A. 25 x 4
B. 2 x 60
C. 5 x 20
D. 10 x 10

Answers

Answer:

a c d

Step-by-step explanation:

all of them are 100 except b so isk what you want hope that helps

Answer:

Step-by-step explanation:

I am pretty sure it is going to be D sorry if I am wrong

A map has a scale of 1 cm : 30 km. If 2 cities are 4.7 cm apart on the map, how far apart are they in reality?

Answers

Answer:

141 Km apart.

Step-by-step explanation:

so if each 1 cm is equivalent to 30 km, we would take the 4.7 and multiply it by the 30 to get the true value.

the true value would come out to be 141 km apart.

Please mark this as brainlest.

141 miles away.

Explanation? Common sense, no?

We are given the unit rate, so we can convert it easily.

1cm = 30km, so, multiply it by 4.7 as there are 4.7cm that are present.

30km x 4.7 = 141km in real life.

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