Answer:
Stars are actually exploding when you see them, so the light is produced from the explosion.
Step-by-step explanation:
:)
Answer: Stars shine because they are extremely hot (which is why fire gives off light — because it is hot). The source of their energy is nuclear reactions going on deep inside the stars.
Step-by-step explanation:
In most stars, like our sun, hydrogen is being converted into helium, a process that gives off energy that heats the star, this energy also causes the star to shine brightly.
pls answer my question
Answer:
x = 23
Step-by-step explanation:
Exterior angles equals the sum of opposite interior angles.
2x+ 3 + 51 = 100
Combine like terms.
2x + 54 = 100 {Subtract 54 from both sides}
2x = 100 - 54
2x = 46 {Divide both sides by 2}
x = 46/2
x = 23
1 and two-thirds minus 2 and one-third
Answer:
The answer is -2/3.
Hope this helps and if you could mark as brainliest. Thanks!
Raju and Ann saved a total of $1560. After Raju gave Ann $50, Raju had 5 times as much money as Ann. How much did Raju have at first?
Step-by-step explanation:
let amt of money Raju has be r and Ann be a.
a + r = 1560
a = 1560 - r --(1)
r - 50 = 5(a + 50)
r = 5a + 300 --(2)
sub (1) into (2):
r = 5(1560 - r) + 300
r = 8100 - 5r
6r = 8100
r = 1350
therefore he has $1350 at first.
Topic: simultaneous eqn + algebraic equations
If you like to venture further, do check out my insta (learntionary) where I constantly post math tips! Thanks!
An expression is a sentence with a minimum of two numbers or variables and at least one math operation such as addition, subtraction, multiplication, or division.
The amount of money Ann has at first is $1350.
What is an expression?An expression is a sentence with a minimum of two numbers or variables and at least one math operation such as addition, subtraction, multiplication, or division.
We have,
Let the amount of money Raju = R
Let the amount of money Ann = A
Now,
Raju and Ann saved a total of $1560.
This statement can be written as:
R + A = 1560 ____(1)
After Raju gave Ann $50, Raju had 5 times as much money as Ann.
This statement can be written as:
R - 50 = 5 ( A + 50 )
R - 50 = 5A + 250
R - 5A = 250 + 50
R - 5A = 300 _____(2)
From (1)
R = 1560 - A _____(3)
Putting (3) in (2),
1560 - A - 5A = 300
1560 - 6A = 300
1560 - 300 = 6A
1360 = 6A
A = 1260 / 6
A = 210
Putting A = 210 in (3) we get,
R = 1560 - A
R = 1560 - 210
R = 1350
Thus the amount of money Ann has at first is $1350.
Learn more about expressions here:
https://brainly.com/question/28637270
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5/8 ÷ 1/4 help I will give brainalest
Answer:
your answer is 2.5 or 2 1/2
Answer:
Result in decimals: 2.5
Result in fractions 2 1/2
Step-by-step explanation:
I WILL MARK BRAINIEST
Answer:
x=65
Step-by-step explanation:
x+65=2x
-x -x
----------------
65=x
Brainliest please
A 48 ft rope is cut into 5 pieces according to the
ratio 2:2:3:4:5. What is the length. In feet, of the
longest piece?
A. 3
B. 6
C. 9
D. 15
please Answer ASAP
Answer:I think it d
Step-by-step explanation:
The length of the longest piece will be 15 ft.
We have a 48 ft rope is cut into 5 pieces according to the ratio →
2 : 2 : 3 : 4 : 5.
We have to determine the length in feet of the longest piece.
A rope of length 'y' ft is cut in the ratio 2:5. What is the length of smallest piece?Now -
2x + 5x = y
x = [tex]$\frac{y}{7}[/tex]
Smallest piece is of length → 2x → [tex]$\frac{2y}{7}[/tex]
According to the question, we have -
Length of rope = 48 ft
Ratio in which they are cut = 2 : 2 : 3 : 4 : 5.
Therefore -
2x + 2x + 3x + 4x + 5x = 48
16x = 48
x = 3
Length of the longest piece = 5x = 5 x 3 = 15ft
Hence, the length of the longest piece will be 15 ft.
To solve more questions on Ropes, visit the link below-
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a Siberian tiger sleeps as much as 18 hours a day or 126 hours per week about how many hours does it take a tiger to sleep in a year? there are 52 weeks in a year
HELP ME AND ANSWER THIS IK ITS -1 BUT ITS AN MULTIPLE CHOICE!! please don't guess thank you :) and I'll mark you as Brainlest :D
Answer:
C and D
Step-by-step explanation:
Let's solve for x to see what range the answer has to be in:
-2x - 3 ≤ -1
-2x ≤ 2
x ≥ -1
So the value of x must be larger than or equal to -1. So the answers would be 1 and 0
192.4-(52+3) times 2
Answer:
82.4
Step-by-step explanation:
412/5,82 2/5 ︎ ︎ ︎ ︎ ︎ ︎ ︎
︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎
︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎
Answer:
274.8
Step-by-step explanation:
( 192.4 - ( 52 + 3 ) ) * 2
Simplify, remember the order of operations;
( 192.4 - ( 52 + 3 ) ) * 2
( 192.4 - ( 55 ) ) * 2
( 192.4 - 55 ) * 2
( 137.4 ) * 2
274.8
A taxi company had 12 taxis originally. After expanding the company now has 18 taxis. Is this an increase or decrease? What was the percent change?
Answer:
This is an increase by 50%.
Step-by-step explanation:
The taxi company has 12 taxis originally, and then got 6 more to get 18. They added, so that is an increase.
18 / 12 = 1.5, so it is a 50% increase.
Please mark as brainliest!
ABCDE is a
regular pentagon
find the angles of ADC?
Answer:
Since this regular polygon has 5 vertices (implied from the ABCDE), it's a regular pentagon. (This means an equilateral, equiangular pentagon.) So, 360 deg./5 =72 deg., and 180 - 72 = 108).
Step-by-step explanation:
calculate 4/5 of 30
Answer:
24
plz mark brainliest
Step-by-step explanation:
Answer:
24..
Step-by-step explanation:
30 divided by 5 is 6 so 30-6=24
A hotel has a budget of $16,000 to buy 84 new mattresses. Each mattress costs $209. The hotel manager says, “Since 80 × $200 = $16,000, I can stay within the budget.”
Answer:
The hotel manager under-estimated. Without estimation, the exact price would be $17,556.
Step-by-step explanation:
He should've over-estimated the money to $210, and the mattresses to 90. So 210 × 90 is $18,900. So even if he did underestimate or overestimate, he still would not have been able to afford the mattresses.
Answer:
hotel has a budget of $16,000 to buy 84 new mattresses. Each mattress costs $209. The hotel manager says, “Since 80 × $200 = $16,000, I can stay within the budget.”
Step-by-step explanation:
100
Find the value of n in the diagram.
Answer:
the answer should be 20
I need the answer asap
Answer:
Just simply fail if it gets too hard <3
Step-by-step explanation:
im sorry lolĺ
Kendra is buying a Nintendo Switch with a price tag of $300. The sales tax rate where Kendra is purchasing the
Switch is 9.5%. How much will Kendra pay altogether for the Switch?
Answer: So for the 9.5% percent I'm not sure if you mean by 9.5% off the price or more for the price so Ill just do both
If you subtract $300 from 9.5% you get 271.5 US$
But if you add $300 to 9.5% you get 328.5 US$
2+2=?
Is it 22 or baby 2 cause the mother 2 meets the father 2 and gives birth to a baby 2.
Kinda confused
Answer:
(1) = 4 (2) = baby 4 (3) 4
Step-by-step explanation:
this is the true .
Solve the attached image
Answer: Gabby and Gianna needs to isolate the variable by dividing each side by factors that don't contain the variable. In the inequality form, the answer is x<–7 or x>–3.
Step-by-step explanation:
WHAT IS THE ANSWER PLZ I WILL MARK BRAINLIEST!!!
Answer:
There is something already at the positive 2 place and you are just subtracting 2 because of (-2)
I hope that helps :)
Step-by-step explanation:
plz mark B R A I N L I E S T
Find the slope of the line that passes through (10, 2) and (5, 1).
Simplify your answer and write it as proper fraction, improper fraction, or integer.
Answer: 1/5
Step-by-step explanation:
Is the relation shown in the arrow diagram a function? Explain. *
(NEED HELP ASAP)
Answer:
It is a function.
Step-by-step explanation: Each input has only one output.
The problem is in the picture
What is the factor of х+8x+7
Answer:
(x + 7) (x + 1)
Step-by-step explanation:
Product = 7
Sum = 8
Factors = 1 , 7
x² + 8x + 7 = x² + 7x + x + 7
= x(x + 7) + (x + 7)
= (x + 7) (x + 1)
can anyone answer number 2? Thank you
ANSWER:
2570000
Step-by-step explanation:
0.003 * 7
0.021 + 1
1.021
2,520,000 * 1.021
2572920
rounds to
2570000
Unendo wishes to maximize the weekly profit of producing and selling the game. Find the price, p, per game that generates maximum profit.
Answer:
Following are the solution to this question:
Step-by-step explanation:
Please find the complete question in the attached file.
The highest benefit is where the unit benefit equals the marginal income
Marginal price = 17q
Score of income=-0.05q
MC = MR
MC=17
MR =DERIVATIVE OF ([tex]80q-0.05 q^2[/tex])
[tex]=80-2 \times 0.05q\\\\=80-0.1q[/tex]
[tex]\to MR=MC \\\\[/tex]
[tex]80-0.1q=17\\\\80-17= 0.1q\\\\0.1q=63\\\\q= \frac{63}{0.1}\\\\q=630[/tex]
Retail prices calculation
[tex]\to P=80-630 \times 0.05[/tex]
[tex]=80 -31.5\\\\= 48.5[/tex]
HELP 15 POINTS
Choose the equation that represents the line passing through the point (−3, −1) with a slope of 4.
y = 4x − 11
y = 4x + 11
y = 4x + 7
y = 4x − 7
Answer:
y=4x+11
Step-by-step explanation:
you find the function rule using the slope which is 4.
A basketball player scored 26 points in one game. In basketball, some baskets are worth 3 points, some are worth 2 points, and free-throws are worth 1 point. He scored four more 2-point baskets than he did 3-point baskets. The number of free-throws equaled the sum of the number of 2-point and 3-point shots made. How many free-throws, 2-point shots, and 3-point shots did he make?
Answer:
3 points = 2
2 points = 6
1 point = 8
Step-by-step explanation:
Given that:
Total point scored = 26
Let number of 3 point basket = x
Number of 2 point basket = x + 4
Number of free throws = x + x + 4 = 2x + 4
Hence,
Total 3 points = 3x
Total 2 points 2(x + 4)
Total free throw points = 2x + 4
3x + 2(x + 4) + 2x + 4 = 26
3x + 2x + 8 + 2x + 4 = 26
7x + 12 = 26
7x = 26 - 12
7x = 14
x = 2
Number of 3 points = x = 2
2 points = (x+4) = 2+4 = 6
1 point = (2x+ 4) = 2(2) + 4 = 8
The number of free-throws, 2-point shots, and 3-point sho ts he made are;
free-throws = 8
2 points = 6
3 points = 2
Let the number of 3 points basket be x
He scored four more 2-point baskets than he did 3-point baskets. Thus;
y = x + 4
number of free-throws equaled the sum of the number of 2-point and 3-point sho ts made. Thus;
z = x + x + 4
z = 2x + 4
Thus;
Total 3 points = 3x
Total 2 points = 2(x + 4)
Total fr ee points = 2x + 4
Since he scored a total of 26 points, then;
I just need the answer to this !!
Answer:
A
:))))))))))))))))))
4. Suppose y varies directly with x, and y= 24 when x = 8. What is the value of y when x = 10?
A)10
B)30
C)80
D)240
Answer:
"B. 30" Is the correct answer.
Step-by-step explanation:
Just took the quiz, have a wonderful day.
What is the correct answer for 5=-1;
2
2
а.
85
7
b
39
с.
0
4
Blank 1:
Answer:
it is c
Step-by-step explanation: