Mathematics High School

Angle A is a supplementary to Angle B. If < b = 65 degrees what is the value of x if < A = 5x -20 ?

Answers

Answer 1

Answer:

x = 27

Step-by-step explanation:

Supplementary angles add up to 180 degrees

65 + 5x - 20 = 180

45 +5x = 180

5x = 135

x = 27

Related Questions

The table shows the height of a ball, ​h(t)​, after t seconds. The data can be modeled using a quadratic regression equation.

Time (s) 1 2 3 4
Height (ft.) 88.7 139.9 158.9 146.1
Approximately when will the ball hit the ground?


0 s

5.2 s

6.3 s

7.5 s

Answers

Answer:

6.3 seconds

Step-by-step explanation:

Make a table

i need help this is due tomorrow

Answers

Answer:

∡IEF=∡SRV

∡HIE=∡TSR

∡GHI=∡UTS

∡FGH=∡VUT

∡EFG=∡RVU

Step-by-step explanation:

I didn't know how you needed them labeled so hope this helps.

If not try just putting hoops

from each side over the letter in the corner on the inside. Then each one will get one more than the other.

I.E. u and g get 1, f and v get 2, e and r get 3, i and s get 4, and h and t get 5.

Solve the system by substitution.
x = 4y - 8
3х — 6у = 12

Answers

The answer is (16,6) I believe


A bus is going to a museum 135 miles away. The bus will travel at 30 miles per hour. How long will it take the bus to get
to the museum?

Answers

Answer:

4.5 hours

Step-by-step explanation:

distance equals rate times time, a relationship that can be solved for time:

time = distance / rate

Here the time is (135 miles) / (30 mph) = 4.5 hours

The bus requires 4.5 hours to get to the museum.

5. What's the fraction 18/24 reduced to its lowest terms?
O A. 18/24
ОВ. У.
O c. %12
D. 2418

Answers

Answer:

The answer is 3/4, i don't know why that's not a choice....

Step-by-step explanation:

6. The net of a rectangular prism and its dimensions are shown in the diagram.
8 in.
8 in.
2 in
2 in.
12 in.
12 in
What is the total surface area of the rectangular prism in square inches?

Answers

Answer:

272 square inches

Step-by-step explanation:

Given

[tex]l = 8[/tex] --- length

[tex]w = 2[/tex] --- width

[tex]h = 12[/tex] ---- height

Required

Determine the total surface area (SA)

This is calculated using:

[tex]SA = 2 * (lw + wh + lh)[/tex]

[tex]SA = 2 * (8*2+2*12+8*12)[/tex]

[tex]SA = 2 * 136[/tex]

[tex]SA = 272[/tex]

The total surface area is 272 square inches

|6-10|
Please help pleeeeeeeeeeese help I need for assignment

Answers

Answer:

4

Step-by-step explanation:

6 - 10 = -4

The absolute value of -4 is 4.

chris sold a watch for $1500 thereby making a profit of 20% calculate the amount chris payed for the watch

Answers

Picture? So I can see?

Eliza estimated she would spend $120 at the grocery store. She actually spent $95. What is the percent error?

Answers

Answer: 26.32% (rounded to the hundredths)

GUYS PLZ HELP ME ANSWER THIS BECAUSE IF I DONT I CANT GO TO MY DADS HOUSE THIS WEEKEND

Answers

Answer:

The answer is 60.5

Step-by-step explanation:

Triangle:multiply 5 by 5 which equals 25 then divide 25 by 2= 12.5

Rectangle:multiply 4 by 12 which equals 48.

All: add 12.5 with 48 which equals 60.5


[tex] \sqrt{121} [/tex]
​

Answers

Answer: 11

Step-by-step explanation:

When you do square root, you're just finding the number that can be multiplied by itself to get what's inside the √ .

So, when you do √121 , you'll get 11. You can check your answer by going backwards: multiply 11 by itself.

P.S. I also want a Brainliest!!!!!

What is a arithmetic fact ?

Answers

An arithmetic fact is an operation on 2 whole numbers and the correct answer. Addition Facts.

1)
Ahmad does a statistical experiment.
He throws a dice 600 times.
He scores one, 200 times.
Is the dice fair? Explain your answer

Answers

Answer:

The dice is not fair.

Step-by-step explanation:

600 times

and

6 sides to said dice

600 / 6 = 100100 is NOT 200

100≠(Not equal sign)200

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

I would recommend writing/typing all of this as your answer.

Hope I helped!!

6=100 they ain’t that far apart

I will give brainliest and 5 stars​

Answers

Answer:

I think its C

Step-by-step explanation:

Please help i will mark brianliest.

Answers

3:1 it can also be written as 3/1 (three over one)


In a class.
12 of the 18 boys can whistle
9 of the 12 girls can whistle.
Hassan says,
*A higher proportion of boys can whistle compared to girls."
Is he correct?
You must show your working.

Answers

Answer:

he is correct because 12 of the boys can whistle and only 9 of the girls can whistle and 9 is a smaller number than 12 so he is correct

He is correct , 12 out of 18 is more than the girls which is 9 out of 12

Help I WILL MARK BRAINLEST PLZZZZ 20 POINTS PLZZ ANSWER I REALLY NEED IT

Answers

Answer:

35

Step-by-step explanation:

please help me i will give you brainlyest(or however you spell it) ANSWER SERIOUSLY ​

Answers

x=11 should be the answer lmk if so

Answer:

x = 18

Step-by-step explanation:

m∠1 & m∠3 are vertical angles. By definition of vertical angles, their measurements will be the same.

It is given that:

m∠1 = 4x - 14

m∠3 = 58°

Set the two angles equal to each other:

4x - 14 = 58

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, add 14 to both sides of the equation:

4x - 14 (+14) = 58 (+14)

4x = 72

Next, divide 4 from both sides of the equation:

(4x)/4 = (72)/4

x = 72/4 = 18

18 is your answer for x.

~

what is the expression below?
26 + 67 + 3x2³

Answers

Answer:

24x+93

That's the answer to the equation that was what you were asking for right?

The cube root of 125 Plus
the square root of 36 is
equal to what?

Answers

Answer:

C. 11

Step-by-step explanation:

So [tex]\sqrt[3]{125}[/tex] + [tex]\sqrt[2]36\\}[/tex] is 5 + 6 = 11

on the Mastery Assessment
, 87% of the students in the 7th grade
got a passing grade. If there are 48 students in the 7th grade, how
many of students got a passing grade?

Answers

Answer:

41 students get a passing score.

Step-by-step explanation:

48*0.87 = 41.76

You remove the 0.76 because you can not have a percent of a student.

What is the slope of the line?

Answers

Answer:

-3/2

Step-by-step explanation:

Down 3 and right 2 so -3/2

Answer:(0,2) ,(0,1)

0-0=0

1-2=-1

-1/0

not sure bout it

Step-by-step explanation:

what is the value of the digit 253,253,253 in the ten millions' place?

Answers

Answer:

50,000,000

Step-by-step explanation:

10,000,000 has 7 0's I just counted backward from the last three 6x and that gave me the answer of 3,000,000 sorry if it's wrong :c

Evaluate the expression when a = 10, b = 9, and c =4

a+9c

Answers

Answer

i think the answer is 46 because

10+9x4=46

Check the picture and thanks

Answers

Answer:

I think the answer would be 'a'

PLEASE help me this is due tomorrow!!
Frodo goes to New Army and buys two pairs of Jeans for $19.99 each, 3 shirts at $7.99 each, and a pack of socks for $5. He has a coupon for 25% off his
entire purchase. Sales tax Is 7 3/4%. What is the total cost after the discount and tax? $

Answers

Answer:

$55.72 that is the rounded to the nearest cent the exact answer is 55.72021875

Find the number of real-number solutions of the equation.
x2 + 10 = 2

A. two solutions
B. one solution
C. no solutions
D. infinitely many solutions

Answers

Answer: A

Step-by-step explanation:  

Take the root of both sides and solve.

Answer:

A

Step-by-step explanation:

It just is

There are two numbers. The larger number is five more than the smaller
number. Three times the smaller number increased by the larger number
equals 147. Find the two numbers.

please help!!!! im in a test!!!!!!!!

Answers

Answer:

35.5 + 40.5

Step-by-step explanation:

smaller number = x

large number = x +5

3x + x +5 = 147

4 x +5 = 147

4x = 142

x = 35.5

x +5 = 40.5

√43 is a number between
6 and 7
7 and 8
21 and 22
84 and 88

Answers

6 and 7

the square root of 43 is 6.557

How can you compare two ratios that are in fractional and percent form?

Answers

Ratio is just a single fraction. Whereas proportion is a ratio between 2 fractions. The basic difference is Ratio is always with respect to some large quantities or superior quantities, whereas proportion is between same kind of quantities.
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