Mathematics Middle School

whats the answer???

Answers

Answer 1

Answer:

Step-by-step explanation:

When two angles are complementary, their measures must add up to 90 degrees. Therefore:

2x-2+3x-5=90

5x-7=90

5x=97

x=19.4

2x-2=2(19.4)-2=38.8-2=36.8

Therefore, the correct answer is choice A. Hope this helps!

Related Questions

Which boxes have a volume of 96 cubic feet?

Box A: length of 4 ft, width of 4 ft, height of 6 ft
Box B: length of 7 ft, width of 2 ft, height of 6 ft
Box C: length of 3 ft, width of 8 ft, height of 4 ft
Box D: length of 10 ft, width of 3 ft, height of 3 ft

A and B
A and C
B and C
B and D

Answers

Answer:

A,C

Step-by-step explanation:

Multiply the 3 number by each other to see which one equals 96

A) 4 x 4 x 6 = 96

B) 7 x 2 x 6 = 84

C) 3 x 8 x 4 = 96

D) 10 x 3 x 3 = 90

A and C are the correct answers.

Hope it helps!!!

A & C

4x4=16 16x6=96
3x8=24 24x4= 96

Is y=-(2)/(5)x proportional?

Answers

Answer:

y=5x is proportional.

Step-by-step explanation:

Answer:

10 is the awnser to the question ( mark as best awnser)

write each of the following expressions as a power of two (4x2^5)\(2^3x1/16)

P.S. the x is a multiplication sign not a variable

Answers

Answer:

Step-by-step explanation:

Rewrite as : (2^2 * 2^5) / (2^3 * 2^4)

= 2^7 / 2^(-1)

Note: Based on exponent rules you do 2 power 7 minus, minus seven. And 2 minus is a positive. So you do 2 power seven plus 2 power 1. That is 2 power 8.

= 2^8

$write each of the following expressions as a power of two (4x2^5)\(2^3x1/16)P.S. the x is a multiplication$

its in the picture lol

Answers

Answer:

x>8 Letter E

Step-by-step explanation:

Students in Mrs. Evan’s class measured the heights of
the bean plants they were growing. The following is the
data set for the bean plant heights, in inches.
Create a line plot for this data by placing an x above the measurement
for each time that measurement is found in the data. (Try to make all
of your x’s the same size and keep them in line with each other.)

Answers

Answer:

X X X

X X X X X

X X X X X X

___|___|___|___|___|___|___

1/8 1/4 3/8 1/2 5/8 3/4

Step-by-step explanation:

First, we must organize the order of the numbers from least to greatest. This will keep the data organized, (and maybe get you extra points). So, let's convert all the fractions so that they will have a denominator of 8.

1/4 = 2/8, 1/2 = 4/8, 3/4 = 6/8.

Now in order we get: 1/8, 1/4, 3/8, 1/2, 5/8, 3/4.

Second, count the number of each fraction that occurs in the data set. Now, put them next to the fractions.

1/8 has 2, 1/4 has 3, 3/8 has 4, 1/2 has 3, 5/8 has 1, 3/4 has 2.

Third, let's put together all the data in to the line plot. First, draw a horizontal line. Then, put dashes intersecting the horizontal line, 6 of them. Beneath the dashes, write the fractions from least to greatest. Above the dashes, draw the number of X's to represent the number of occurrences on each fraction.

The box plots shown represent the average mileage of two different types of cars. Use the box plots to compare the data sets.

Drag each value to show if it is greater for SUVs, greater for sedans, or if there is not enough information to tell.

Answers

Answer:

Step-by-step explanation:

A cereal box has a height of 32 centimeters. It has a base with an area of 160 square centimeters.

What is the volume, in cubic centimeters, of the cereal box?

45.4 + 56.3+ ? = 2,878

PLEASE HELP

Answers

The correct for the expression is 101.7 (45.4 + 56.3=101.7 )

2,776.3 is your answer

CAN SOMEONE PLEASE MARK ME BRAINLIEST ON ONE OF THIER QUESTONS I SERIOUSLY NEED IT ILL GIVE THEM 60 POINTS

Answers

Answer:

Ok bet i got you

Answer:

ill create a random question and answer wit whatever ill mark you brainliest

Step-by-step explanation:

just watch the new questions in math

please help me im stucker than the slowest turtle on earth walking on peanut butter.

Answers

Answer:

Step-by-step explanation:

Answer 3

Because 1.00 / 3 Friends = 0.30$

0.30$ / .10$ = 3

In other words, each friend can buy 3 Bookmarks and she keeps .10$.

The height of a cylindrical can is 4 7/16 inches and the radius is 3 inches. Which measurement is closest to the total surface area of the can in square inches?

A)83.64 in²
B)55.96 in²
C)41.82 in²
D)140.19 in²

Answers

Answer:

D)140.19 in²

Step-by-step explanation:

Fill in the missing box with the correct answer; for the exponent kindly use this symbol (^). NOTE: Don't put any space. thank you!

Answers

Answer:

5^2^5*5

Step-by-step explanation:

Srry that is all i know

Part 3 Directions: Use pictures and equations to show your work.

At the end of the year, Mrs. Weeks bought an assortment of new balls to replace some of the old ones. She had $150.00 to spend. Describe two different ways that Mrs. Weeks could spend her money if she bought at least two of each of the balls.

Football $8.00

Basketball $9.00

Baseball $7.00

Softball $5.00

Answers

I would go with baseball or football.

I would go for basketball or football

There is a total of 27 quarters stacked in four piles. The first pile has 5 fewer than the second pile. The second pile has 4 more than the third pile. The fourth pile has three times as many as the second pile. How many quarters are in the fourth pile?

Answers

Answer: 18 quarters

Step-by-step explanation:

second pile = x

first pile = x - 5

third pile = x - 4

fourth pile = 3x

total amount of quaters = 27

x + x - 5 + x - 4 + 3x = 27

6x = 36 x = 6

fourth pile = 3(6) = 18

Solution:

Note that:

27 quarters = 4 piles = 1st pile + 2nd pile + 3rd pile + 4th pile1st pile = 2nd pile - 5 = 3rd pile - 12nd pile = 1st pile + 5 = 3rd pile + 43rd pile = 1st pile - 1 = 2nd pile - 44th pile = 3(2nd pile)

This means that...

27 quarters = (2nd pile - 5) + (2nd pile) + (2nd pile - 4) + 3(2nd pile)

First, let's find the number of quarters in 2nd pile.

Open the brackets.

27 quarters = (2nd pile - 5) + (2nd pile) + (2nd pile - 4) + 3(2nd pile)=> 27 quarters = 2nd pile - 5 + 2nd pile + 2nd pile - 4 + 3(2nd pile)

Combine like terms.

=> 27 quarters = (-5 - 4) + 6(2nd pile)

Simplify the RHS.

27 quarters = -9 + 6(2nd pile)

Add 9 both sides.

27 + 9 = 6(2nd pile)=> 36 quarters = 6(2nd pile)

Divide 6 both sides.

=> 6 quarters = 2nd pile

Now, substitute the number of quarters in 2nd pile in it's equation.

4th pile = 3(2nd pile)=> 4th pile = 3(6)=> 4th pile = 18 quarters.

pls help
Jimmy reads 15 pages in 5 minutes. Carlo reads 12 pages in 6 minutes. Find each constant of proportionality, showing your work. Then write a sentence to compare the proportional relationships.

Answers

Answer:

Jimmy has a ratio of 1:20, or 1 page:20 seconds. Carlo has a ratio of 1:30, or 1 page:30 seconds. Jimmy reads at a faster pace than Carlo, as he is able to read a page in 2/3 of the time it takes Carlo.

Step-by-step explanation:

Jimmy reads a page, on average, every 20 seconds.

5 × 60 = 300

300/15 = 20

therefore, one page every 20 seconds

1:20

Carlo reads a page, on average, every 30 seconds.

6 × 60 = 360

360/12 = 30

therefore, one page every 30 seconds

1:30

The constant of proportionality for each conditions are 3 and 2 respectively.

What is Proportional?

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

Given that;

Jimmy reads 15 pages in 5 minutes.

And, Carlo reads 12 pages in 6 minutes.

Now,

For first condition,

Jimmy reads 15 pages in 5 minutes.

So, The constant of proportionality = 15 / 5

= 3

And, For second condition,

Carlo reads 12 pages in 6 minutes.

So, The constant of proportionality = 12 / 6

= 2

Thus, The constant of proportionality for each conditions are 3 and 2 respectively.

Learn more about the proportion visit:

https://brainly.com/question/870035

#SPJ2

help please number 14

Answers

Answer:b=770 C=588

Step-by-step explanation:

B= b*b/2*h=14*22=308/2=154*5=770 C=21*4=84/2=42*14=588

hope it helps

B=770 and c = 588 have a nice day

To earn a fitness award, your average heart rate while walking must be between 80 and 89 beats per minute, inclusive. Suppose you recorded 85, 81, and 87 beats per minute on your first three recordings. What are the possible heart rates you can have on the fourth and final recording in order to earn a fitness award?
(GIVING 25 POINTS)

Answers

Answer:

Step-by-step explanation:

hope this helps

I would say about 82

Which of the following would be the most appropriate unit to measure the height of a mountain?

A. ounce
B. foot
C. millimeter
D. centimeter

Answers

Answer:

The correct answer is B. foot

Heights of mountains are often measured in feet.

The way to measure a mountain would be with Foot. So B is the correct answer

please make sure its right!

Answers

Answer:

the right answer is the second one, 2.7

Step-by-step explanation:

because 25/9 is the same as 25 ÷ 9 so when you divide you will get 2.7

I hope this helps!

Answer:

2.77777777

Step-by-step explanation:

If you like my answer than please mark me brainliest

I need help with this question, I'm not very good at math and all help is appreciated!

Answers

Answer:

Step-by-step explanation:

We can solve for H by isolating it on one side of the equation, as follows:

J/H - I/H = G

Taking H as the common denominator:

(J - I)/H = G

Multiplying both sides by H:

J - I = GH

Adding I to both sides:

J = GH + I

Dividing both sides by G:

H = (J - I)/G

So the answer is

(A)

H = (J - I)/G.

Answer: A

Step-by-step explanation:

$\frac{J}{H} = G + \frac{I}{H}$ >Since you are solving for H bring I/H to the other side

by subtracting I/H from both sides

$\frac{J}{H}- \frac{I}{H} = G$ >There is a common denominator so you can

combine the fractions

$\frac{J-I}{H} = G$ >Multiply both sides by H or cross multiply whichever

way your mind things about how to get H on top

$J-I = G(H)$ >Divide both sides by G

$\frac{J-I}{G} = H$ >Answer is A

A family buys 5 airline tickets online. The family buys travel insurance that costs $18 per ticket. The total cost is $940. Let x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.

Answers

Answer: x=one ticket,a person bought travel insurance that costs $18 per ticket.Hence, the total cost of a person = x + 18, The total cost of 5 person = 5 ( x + 18 ) But in this question the problem answers and representation is :

5 ( x + 18 ) = 1496

x + 18 = 300

x = 300 - 18

x = 289

the price of one ticket = $ 289

To make 16 hamburger patties that each weigh 1/3 pound, you need 16/3 pounds of beef. Write 16/3 as a mixed number.

Answers

Answer:

5 1/3

Step-by-step explanation:

fraction=division

16÷3= 5 R1

5 r1= 5 1/3

I hope this helps you learn how to change improper fractions to mixed numbers!

The answer would be 5 1/3.

solution:

if you were to divide 16 and 3, you wouldn’t have an exact whole number to divide it by. The closet would be 5. 5x3= 15 with a remainder of 1. You take the denominator and make it 1/3. Now, you have your whole number 5 and fraction 1/3. That would mean the answer is 5 1/3

I need help with this last one

Answers

Answer:

x = 7.5, y = 8.5

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

The two angles with the variable x form a linear pair and therefore:

16x - 18 + 10x + 3 = 18026x - 15 = 18026x = 195x = 195/26x = 7.5

Angles 16x - 18 and 12y are congruent as vertical angles:

16*7.5 - 18 = 12y102 = 12yy = 102/12y = 8.5

Answer:

x = 7.5

y = 8.5

Step-by-step explanation:

Linear Pair

Two adjacent angles that sum to 180° (two angles which when combined together form a straight line).

To find x, equate the sum of the two angles with the variable x to 180° and solve:

⇒ (16x - 18)° + (10x + 3)° = 180°

⇒ 16x - 18 + 10x + 3 = 180

⇒ 26x - 15 = 180

⇒ 26x = 195

⇒ x = 7.5

Vertical Angles Theorem

When two straight lines intersect, the opposite vertical angles are congruent.

Therefore:

⇒ (16x - 18)° = 12y°

Substitute the found value of x into the equation and solve for y:

⇒ 16x - 18 = 12y

⇒ 16(7.5) - 18 = 12y

⇒ 120 - 18 = 12y

⇒ 102 = 12y

⇒ y = 8.5

HELP PLEASE I REALLY NEED HELP

Answers

-3.121875

First step is take it out of fractions and into decimals, they are easier to work with.

(0.5x1.125)x(2.66x3.33)x7.5

Then PEMDAS

Parentheses
0.625x-0.66x7.5

Then multiply

-0.41625x7.5

Answer
-3.121875

Hi how has your day been

Yooo can someone help me?

Answers

This is the formula to find slope
(Y2-Y1) / (X2-X1)

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)

helppppoppooppppppppp.

Answers

...........It’s B........

can someone answer these questions for me? I have no idea how to solve any of them.

it would be best if you showed your work please

Answers

I am so sorry I don’t know

Which operation is Not used in the phrase "three times a number , decreased by 2 , divided by 6" ?

Answers

the answer is addition

Answer:

Step-by-step explanation:

Let the number be x

3 times a no. = 3x (Multiplication)

Decreased by 2 = 3x-2 (Subtraction)

Divided by 6 = $\frac{3x-2}{6}$ (Division)

So, here, addition is not used

Mary and Jim collect baseball cards. Mary has five more than three times as many cards as Jim. The total number of cards they both have is 147. How many cards do they each have?

Please give me a right answer I will give 100 pt and brainliest

Answers

Answer:

m = 111.5

j = 35.5

I really hope this is right ;(

Step-by-step explanation:

m = 3j + 5

j + 3j + 5 = 147
4j + 5 = 147
4j = 142
142 ÷ 4 = 35.5

So j = 35.5

3(35.5) + 5 = 111.5

3(35.5) + 5 = the answer is 111.5

What is the equation of the line?

Answers

Answer:

y=4

Step-by-step explanation:

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whats the answer???