Answer:
8 refills
Step-by-step explanation:
Set up an equation. You know that Mr. E spent his entire $50, so you start by making one side 50. Then, you know that the total is the same as the sum of everything purchased, so on the other side, add the souvenir, the food, and the refillable drink term (2.5x, with x being the number of refills, the thing the question is asking for). This gets you an equation of 50 = 20 + 10 + 2.5x. Isolate x by getting the x term by itself. In this case, you subtract 20 and 10 from both sides, leaving you with 20 = 2.5x. Finally, divide both sides by 2.5 to isolate x completely, leaving you with 8 = x, or x = 8. Don't forget your units (:
Answer:
8 refills
And the answer to the comment question is $175 for each iPhone 11
Step-by-step explanation:
Hope this helps :)
Pls mark brainliest :3
And have an amazing day <3
One grain of this sand approximately weighs 7 x 10^-5 g. How many grains of sand are there in 6300 kg of sand ? Give your answer in standard form
Answer:
90 000 000 000 Grains
Step-by-step explanation:
one grain equal approximately 0.00007 grams.
convert 6300 kg into grams (multiply by 1000) and that equals 6 300 000g.
divide that by the weight of a single grain and you get the number of grains in that weight. So 6300000/0.00007=90 000 000 000 grains.
The number of grains of sand are there in 6300 kg of sand is 90,000,000.
What is scientific notation?Scientific notation is a method for expressing a given quantity as a number having significant digits necessary for a specified degree of accuracy, multiplied by 10 to the appropriate power such as [tex]1.56\times10^7[/tex].
Given that, one grain of this sand approximately weighs [tex]7\times10^{-5}[/tex] g.
6300 kg of sand
Number of grains = [tex]\frac{6300}{7\times10^{-5}}[/tex]
= [tex]900\times10^5[/tex]
= 90,000,000
Therefore, the number of grains of sand are there in 6300 kg of sand is 90,000,000.
To learn more about the Scientific notation visit:
https://brainly.com/question/18073768.
#SPJ2
a die is rolled once . what is the probability that the number on top will be _____
Answer:
I think the number on top will be 3
Answer:
50%
Step-by-step explanation:
Since the dice was only rolled twice, that would give youa 50/50 chance of getting any number on the dice, as it was only rolled once obviously.
divide inverse function 2x³+1
Answer: The Inverse Function goes the other way: So the inverse of: 2x+3 is: (y-3)/2. The inverse is usually shown by putting a little "-1" after the function name, like this: f -1(y) We say "f inverse of y". So, the inverse of f(x) = 2x+3 is written: f -1(y) = (y-3)/2.
Step-by-step explanation:
Hope this helps!
Answer all questions I'll give 50 pts.
Answer:
14. 6 × 10^7
15. 6 × 10^14
16. 7.2 × 10^-7
17. 8.5 × 10^-2
18. 23 × 10^5, 6.9 × 10^6, 72 × 10^5
19. 1.89 × 10^-4, 2.5 × 10^-4, 19 × 10^-3
20. 3.125 × 10^-5
21. 3.1536 × 10^9
Step-by-step explanation:
14.
(2 × 10^5)(3 × 10^2)(200000)(3 × 10^2)(200000)(300)600000006 × 10^715.
(1.5 × 10^5)(4 × 10^9)(150000)(4 × 10^9)(150000)(4000000000)6e + 146 × 10^1416.
(6 × 10^-4)(1.2 × 10^-3)(0.0006)(1.2 × 10^-3)(0.0006)(0.0012)7.2e-77.2 × 10^-717.
(5 × 10^3)(1.7 × 10^-5)(5000)(1.7 × 10^-5)(5000)(0.000017)0.0858.5 × 10^-218.
72 × 10^5 = 72000006.9 × 10^6 = 690000023 × 10^5 = 2300000 23 × 10^5, 6.9 × 10^6, 72 × 10^519.
19 × 10^-3 = 0.0192.5 × 10^-4 = 0.000251.89 × 10^-4 = 0.000189 1.89 × 10^-4, 2.5 × 10^-4, 19 × 10^-3Which expression is equivalent to (x-4y/x-9y5)-2
•y8/x10
•x5/y7
•x5/y4
•x/y7
Answer:
y8/x10
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
cause math
May I please receive help?
Answer:
28°
Step-by-step explanation:
1. We can see that ∠GFH has two smaller angles within it: ∠1 and ∠2. Given that m∠GFH is 53° (the whole thing), and m∠2 is 25° (a part of it), we just have to subtract 25 from 53 to get the measure of ∠1.
[tex]53 - 25[/tex] [tex]28[/tex]Therefore, m∠1 = 28°.
(-2) times (-3x) -4x
x=
Evaluate the expression
Answer:
= 6x
Step-by-step Evaluation:
Evaluate for x=6
((−2)(−3))(6)
((−2)(−3))(6)
=36
(hope this helps you) :)
PLEASE HELP ME I NEED TO ANSWER THIS
Answer:
the correct answer is 37°
Step-by-step explanation:
just simple geometry haha
Answer:
37
Step-by-step explanation:
( x + 71 ) and 108 are vertically opposite angles.
Vertically opposite angles are equal.
x + 71 = 108
x = 108 - 71
x = 37
The graph shows the number of servings in different amounts of frozen yogurt listed on a carton. Enter an equation that gives the number of servings y in x pints. Use only decimal form, if necessary.
The equation is y =
Answer:
y=2.5x
Step-by-step explanation:
We have been given a graph that shows numbers of servings (y) in different amounts (x) of frozen yogurt listed on a carton.
To write an equation that gives the number of servings y in x pints, we will have to find the slope (rate of change) of our given linear function.
Since we know that rate of change of a function can be found by vertical change of the function divided by horizontal change of the function.
m= Slope (rate of change).
=Difference between two y-coordinates.
=Difference between corresponding x-coordinates of the y-coordinates.
Upon substituting coordinates of two points (0,0) and (4,10) in slope formula we will get,
The slope of our given line is 2.5.
Now we will write equation of our given line is slope-intercept form. The equation of a line in slope-intercept form is: , where m=slope and b = y-intercept (initial value).
Upon substituting m=2.5 and coordinates of point (4,10) in slope-intercept form of equation we will get,
Upon substituting m=2.5 and b=0 in slope-intercept form of equation we will get,
Therefore, the equation will give the number of servings y in x pints.
If a triangle has an area of 192 mm2, and the
height measures 12 mm, what is the measure
of the base?
Answer:32mm
Step-by-step explanation:
area of triangle = 1/2 *base * height
192mm2 = 1/2 *b* 12mm
192 =6b
base=192/6
base= 32mm
. Find the factors of (ϰ² - 25)
Answer:
(x - 5)(x + 5)
Step-by-step explanation:
x² - 25 is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
x² - 25
= x² - 5²
= (x - 5)(x + 5)
I need to solve for A.
Please help! Thank you!
Step-by-step explanation:
125 is vertically opposite to the interior angle of triangle
then X+40+X+31+125=180(sum of angle of triangle is 180)
the we get X= -22
C(t)=55t+175 represent the total cost for a quilter to make t quilts.
Answer:
what is this question asking for
The price of a car that was bought for $20,000 has depreciated 8% yearly.
Write a model to describe the value of the car.
A.f(t)=20,000(0.92)t
B.f(t)=20,000(1.92)t
C.f(t)=20,000(0.08)t
D.f(t)=20,000(1.08)t
Step-by-step explanation:
[tex] \sf{ \longmapsto \: D.f(t)=20,000(1.08)t}[/tex]
Solve for x.
(x÷2)+6=50
x = 22
x = 28
x = 38
x = 88
The answer is x = 88
Correct answer gets Brainly !!
Answer: X=5
Step-by-step explanation: Because if you subtract 10-(-5) it = 5
What is the two perfect squares of 237?
Answer:
What is the two perfect squares of 237?
Step-by-step explanation:
The Two perfect squares of 237
I guess It didn't have any square
although its square is 15.39480432
Plzzzzzzzz help with your own handwritten picture
120−96×[5 ÷ {23 − 3 × (12 − 22 − 16)}]
40 POINTS! Thank you so much if you answer!
Answer:
o
Step-by-step explanation:
o
thx for the points :D
Edgar uses his cell phone all the time, even though it's more expensive between
8 a.m. and 6 p.m. The daytime rate costs 10¢ per minute between 8 a.m. and 6
p.m., while it is 3¢ per minute all other times. If Edgar spent 60 minutes on the
phone at night and 60 minutes during the day, how much would he owe?
Answer:21600
Step-by-step explanation:
Multiply 60 by 2, then by 3. Add 120 and 180 to get 21600.
find 3 values of x and y that satisfy the equation y = 3x - 2
Answer:
x = 1, y = 1
x = -2, y = -8
x = 3, y = 7
Step-by-step explanation:
Donald can type 240 words in 6 minutes. How long will it take him to type a 1000-word essay if he types at the same rate?
Fill in the blanks with the correct values.
25 minutes
(6*1000)/240
I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best :D
Answer:
52.5
Step-by-step explanation:
Just subtract 65-12 which is 53. Take away 0.5 to get 53.5
Answer:
The sunflower was 52.9 inches when the gardner last measured.
Step-by-step explanation:
a) x + 12.1 = 65 in.
b) To solve this problem, use inverse operations to find x variable. Since this problem has addition, we will have to use subtraction. 65 - 12.1 = 52.9. So, 52.9 would be your answer.
-kiniwih426
Select all of the number of ways in which a line
and a circle can intersect.
Answer:
0, 1, 2
Step-by-step explanation:
Hi there!
0
It is possible for a line and a circle to not intersect at all.
1
It is also possible for a line and a circle to meet at one point only. They would be tangent to each other and touch.
2
Finally, it is possible for a line to intersect the circle. They would appear overlapping. In any of these cases where a line intersects a circle, they would have crossed the circle at two points.
3
A line and a circle can only have a total number of 2 intersection points.
I hope this helps!
rewrite the fraction 1/6 as a division expression with the same numbers.
Answer:
1 ÷ 6
Step-by-step explanation:
1/6 is the same as 1 ÷ 6
In the same way, 2/3 would be 2 ÷ 3
Hope this helps!
1 (a) (i) Yasmin and Zak share an amount of money in the ratio 21 : 19.
Yasmin receives $6 more than Zak.
Calculate the total amount of money shared by Yasmin and Zak.
(ii) In a sale, all prices are reduced by 15%.
(a) Yasmin buys a blouse with an original price of $40.
Calculate the sale price of the blouse.
Answer: 1(a) $120
(ii a) $34
Step-by-step explanation:
21-19 = 2
$6/2=3
21x 3( one ratio =$3) =63
19x3 = 57
63+57=120 - (1 A ans)
(ii a) 40x0.15 (percentage decrease)= 6
40-6 = $34
The total amount of money shared by Yasmin and Zak is $120.
What is the ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
(i) The given ratio is 21:19
Let Zak be having $x, the Yasmin will be having $(x+6).
Now, 21/19 = x+6/x
21x=19x+114
2x=114
x= $57
So, x+6= 57+6 = 63$
Total 63+57=$120
(ii) Given that, Yasmin buys a blouse with an original price of $40.
In a sale, all prices are reduced by 15%.
Now, 15% of 40
= 15/100 ×40
= 0.15×40
= 6
New cost =40-6
= $34
Therefore, the sale price of the Yasmin's blouse is $34.
To learn more about the ratio visit:
brainly.com/question/13419413.
#SPJ2
Please answer the question for brainliest!
Answer:
x = 14
Step-by-step explanation:
10x-30+5x = 180
Combine like terms
* 15x-30 = 180
Add 30 from both sides
* 15x 30+-30 = 180+30
Divide 15 both sides
* 15x/15x = 210/15x
x = 14
Hope this helps :)
Brita has a monthly budget of x dollars. Every month, $1,425 is spent on her mortgage. One-third of her remaining budget is spent on recreational activities. Which equation below can be used to determine the amount, in dollars, spent on recreational activities?
y=x−1,4253
y=1,425−x3
y=1,425+x3
y=x+1,4253
Answer:
y=1,425-×3
Step-by-step explanation:
the x has to be divided by the 1/3
Which climate zone generally receives the least amount of the
sun's energy?
a) tropical zone
b) subtropical zone
c) temperate zone
d) subpolar zone
Answer:
d) subpolar zone
WILL GIVE BRAINLIEST TO ANSWER
Answer:
A , D , E
Step-by-step explanation:
Substitute x = 2 into f(x) and check if the result is 4
(a)
f(2) = 2² = 4 ← then f(2) = 4
(b)
f(2) = 2 + 6 = 8 ≠ 4
(c)
f(2) = 4(2) + 2 = 8 + 2 = 10 ≠ 4
(d)
f(2) = 2² = 4 ← then f(2) = 4
(e)
f(2) = 8(2) - 12 = 16 - 12 = 4 ← then f(2) = 4
