Answer:
i need more information to answer this question
Step-by-step explanation:
A mine produces 42.5 tons of coal per hour. How much coal will the mine produce in 12.5 hours?
Answer:
531.25 tons per 12.5 hr
Step-by-step explanation:
42.5 per hr
× 12.5
531.25 tons per 12.5 hrs
Answer:
531.25 tons per 12.5 hr
Step-by-step explanation:
How many solutions are there for the equation? |XI=8
Answer:
Two solutionsStep-by-step explanation:
|a| changes the sign to + if a<0
so solution of |x| = 8 would be x=8 or x = -8
1.Write 6,730,000 in scientific notation.
2. Write 13,300 in scientific notation.
3. An ordinary quarter contains roughly 97,700,000,000,000,000,000,000 atoms. Write this number using scientific notation.
Answer:
6.73 X 10 to the sixth power.
1.33 X 10 to the fifth power.
9.77 X 10 to the twenty-second power.
Step-by-step explanation:
What is the range of the relation of centimeters as a function of inches? {5.08, 10.16, 17.78, 25.4, 33.02} all positive integers x greater-than-or-equal-to 0 y greater-than-or-equal-to 0
Answer:
y>0 Option D
Step-by-step explanation:
Answer:
The answer is D.)
Step-by-step explanation:
This is right on edg. 2020
Thirty bouquets contain 750 rose stems. How many rose stems will 9 such bouquets hold?
Answer:
225 rose stems
Step-by-step explanation:
750 / 30 = 25 rose stems per bouquet
25(9) = 225 rose stems
I really need help on this problem.
Answer:
a.) 20
b.) 4/3
c.) 3
Step-by-step explanation:
a.) Plug in 5 for x
5(5) - 5
25 - 5
20
b.) Plug in 1/3 for x
5(1/3) - 1/3
5/3 - 1/3
4/3
c.) Set equation equal to 12 to find x input
12 = 5x - x
12 = 4x
3 = x
x = 3
Alex can run 24 miles in 3 hours. How many miles does he run in 1 hour?
Answer:
8 miles per hour
Step-by-step explanation:
24 divided by 3 equals 8 miles per hour
Answer: 8 miles
Step-by-step explanation:
24/3=8, so the unit rate is 8 miles an hour, which means he ran 8 miles in 1 hour.
I need this TONIGHT!!! Three years ago, Jolene bought $750 worth of stock in a software company. Since then the value of her purchase has been increasing at an average rate of 5 1/2% per year. How much is the stock worth now? (Round each money calculation you make to the nearest cent.) The stock is worth $ now.
Answer:
[tex]A\approx\$880.68[/tex]
Step-by-step explanation:
So, we know that Jolene bought an initial $750.
We also know that the purchase is increasing at an average rate of 5 1/2 %or 5.5%. In other words, this is being compounded.
So, we can use the compound interest formula, which is:
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
Where A is the total amount, P is the principal value, r is the rate and n is the number of times compounded per year, and t is the amount of years.
So, substitute 750 for P. 5 1/2% is the same as 5.5% or 0.055 (you move the decimal two places to the left and remove the percent symbol) so substitute this for r. Since it's increasing yearly, n is 1. So, our formula is:
[tex]A=750(1+0.055)^t[/tex]
Add:
[tex]A=750(1.055)^t[/tex]
Since the stock was bought 3 years ago, the value now is t=3. So, substitute 3 for t and evaluate:
[tex]A=750(1.055)^3[/tex]
Evaluate. Use a calculator:
[tex]A\approx\$880.68[/tex]
And we're done!
Formula: A = P(1 + r/n)^t
We have these variables:
P = 750
r/n = 0.055
t = 3
Substitute and simplify:
A = 750(1 + 0.055)^3
A = 750(1.055)^3
A = 880.68
Best of Luck!
The number of hot dogs Ryan can eat varies directly with the amount of time he spends eating. If Ryan can eat 14 hot dogs in 6 minutes, how many hot dogs can he eat in 15 minutes? HELPPPPPPPPPPP
Answer:
35
Step-by-step explanation:
Let h represent the number of hot dogs Ryan eats in 15 minutes. Since the rates are the same, we have ...
dogs/minutes = h/15 = 14/6
Multiplying by 15 gives us ...
h = (15·14)/6 = 35
Ryan can eat 35 hot dogs in 15 minutes.
Select the decimal that is equivalent to 2/3
Answer:
0.66666667 or 0.6
Step-by-step explanation:
if you put [tex]\frac{2}{3}[/tex] in a calculator and convert it, it would display
0.6666 with infinite sixes.
you can also write it as:
0.6
ps ;; you would do this for any fraction, then round it.
What is the inverse of the function f(x) = 1/9 x + 2?
h(x) = 18x - 2
h(x) = 9x - 18
h(x) = 9x + 18
h(x) = 18x + 2
Answer: the answer is option B. or h(x) = 9x - 18
Step-by-step explanation:
Answer: h(x) = 9x - 18
Step-by-step explanation:
I just took the test and got it right
What does it mean when a variable equals R
Like b=R
Answer:
Step-by-step explanation:
R=r
solve the inequality
4(1-x)+5(1+x)>3x-1
Answer: x < 5
Step-by-step explanation:
4 - 4x + 5 + 5x > 3x - 1
9 + x > 3x - 1
10 > 2x
x < 5
Write an equation for the description.
The length of a rectangle is twice its width. The perimeter of the rectangle is 134 feet.
Answer:
L = 2w 134 = 2L + 2w
l= length
w=width
l=2w
P=Perimeter= 134 ft
P= 2(l+w)
= 2(2w+w)
= 2(3w) = 6w=134
w=134/6=22 1/3 ft
l= 2w = 2 x 22 1/3 = 44 2/3 ft
Hope it helps
if someone has 18 candy boxes then eats all 18 what do they have
Answer:
They have no more candy
Answer:
diabetes
Step-by-step explanation:
What is the slope of the line on the graph?
Answer:
2/4=1/2
Step-by-step explanation:
It rises 2 runs over 4.
rise/run
2/4=1/2
this is integrated math2, help plzzzz. i’m so lost idk what this is:/
I remember doing the last question.
If you recall, x = 29
Just plug 29 into x for each angle
A = 3(29) = 87
B = 2(29) + 1 = 59
C = 29 + 5 = 34
Answer:
The value of angle C is 34°
Step-by-step explanation:
2x+1°+x+5°+3x° = 180° { the sum of angle of triangle is 180°}
or, 6x + 6° = 180°
or, 6x = 180° - 6°
or, x = 174°/6
or, x = 29°
now,
value of angle C = x+5°
= 29°+5°
= 34°
I have a few questions so if you can answer all correct I’ll mark brainliest!
A toy car costs $60. It is reduced by 10% in a sale. How much
does it cost in the sale?
I have $78. I spend $45 on some CDs and $12 on a t-shirt. How much money is left
The ratio of lions to tigers in the zoo is 3:5 if there are 9 lions how many tigers are there?
Answer:
1.) $54
2.) $21 left
3.) 15 tigers
Step-by-step explanation:
1.) If the original price of an item was $60, and it was reduced by 10%, that means it is now being sold at 90% of its original value.
To find out the new price, simply take the original value and multiply it by 90% (as a decimal).
60*.90=54
So the new price is $54
2.) This is simple subtraction. If you spend $45 on some CDs and $12 on a t-shirt, you spent a total of $57. Subtract $57 from your total of $78.
78-57=21
You are left with $21
3.) Ratios are all about multiplication. If the ratio of lions to tigers is 3:5, that means that the number of lions is going to be any factor of 3, as long as it corresponds to the same factor of 5 for the tigers.
For example, if there are 9 lions, there must be 15 tigers.
3*3=9
5*3=15
There are 15 tigers
walmart sells the bike he likes for 350 dollars Walmart had the bike on sell for 30% off what is the cost of the bike at Walmart
Answer:
$245
Step-by-step explanation:
350× 0.30 = 105 dollars off
350-105 = 245
Answer:
245
Step-by-step explanation:
350/10=35
35=10%
35x3=105
105=30%
350-105=245
The sum of the measures of a triangle is 180 degrees.a triangle has angle measures of 5x+2,6x and 134.find the measures of x
Answer:
4
Step-by-step explanation:
6x + 5x+2 + 134 = 180 All triangles have 3 angles = 180. Combine
11x + 136 = 180 Subtract 136
11x = 180 - 136
11x = 44 Divide by 11
x = 44/11
x = 4
=======================
Angles are
5x + 2 = 22
6x = 24
<3 = 134
Total = 180
What is the solution of the inequality ⅚ x - 3 < 2 ?
the answer to the inequality is..
Inequality Form: x < 6
Interval Notation: (-∞,6)
Solve the following expression. d=5 2d+4d-9-7
Answer:
14Step-by-step explanation:
[tex]2d+4d-9-7\\\\d =5[/tex]
Substitute ; d= 5 into the given equation
[tex]2(5)+4(5) -9-7\\\\Follow\:the\:PEMDAS\:order\:of\:operations\\\\10 +20 -9-7\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:\:\\\\10+20 =30\\\\=30-9-7\\\\30-9=21\\\\=21-7\\\\21-7\\=14[/tex]
The value of the expression 2d + 4d - 9 - 7 is 14 if the value of d is 5 after plugging d = 5 in the equation.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
It is given that:
The expression:
= 2d + 4d - 9 - 7
Plug d = 5 in the above expression:
= 2(5) + 4(5)- 9 - 7
The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
= 10 + 20 - 9 -7
= 30 - 16
= 14
Thus, the value of the expression 2d + 4d - 9 - 7 is 14 if the value of d is 5 after plugging d = 5 in the equation.
Learn more about the expression here:
brainly.com/question/14083225
#SPJ2
The graph shows the favorite colors chosen by some middle school students. Which statement is supported by the information in the graph?
Answer:
Um you didnt attach a file or anything make one again and ill answer it just attach a screenshot of the problem
Step-by-step explanation:
Answer:The answer is C :exactly 18% of the students chose blue as their favorite color.
(PLEASE ANSWER THESE ASAP)
(1) K-Mart is offering a 15% discount on children's clothing. Susan sees a jumper she likes for $30. How much does she pay for the jumper?
(2) Michael has $35 to divide between his two daughters, Paula and Mathilda, in the ratio of 3:2 How much money does each daughter receive?
Answer:
easy
Step-by-step explanation:
easy..................
The cafeteria wants to buy 4,500 new forks. If each package contains 90 forks, how many packages should the cafeteria buy?
Answer:
50
Step-by-step explanation:
4,500÷90=50
and to check
90×50=4500
p² – 40q+p- 2q +49² 38
Factor Each Polynomial Completely
Answer:
The expression is not factorable
with rational numbers
Help needed ASAP will give BRAINLIEST
Answer:You must divide the equation to get the answer
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
I believe what they're doing is A+B=B+A. If not, rule this answer out.
A fruit juice company includes 1.247 ounces of orange juice in a 6.85 ounce bottle of mixed fruit juice. How much of the bottle of mixed fruit juice is not orange juice
Answer:
5.603 ounces
Step-by-step explanation:
From the information given, you know the ounces of orange juice included in a bottle and the ounces of mixed fruit juice that the bottle has. So, to be able to determine how much of the bottle of mixed fruit juice is not orange juice, you have to subtract the ounces of orange juice in the bottle from the ounces of mixed fruit juice that it has:
6.85-1.247=5.603
According to this, the answer is that the bottle of mixed fruit juice has 5.603 ounces that are not of orange juice.
a. You wash cars for 2 hours. You receive $42.
How much do
you earn per
hour?
Answer:
$21
Step-by-step explanation:
$42/2 = $21 per hour
Jose wants to buy his friends pizza at lunch. He has $36 to spend. The pizza costs $2.25 per slice. Which equation could be used to find the number of slices, x, he can buy?
Answer:
36 = 2.25(x)
Number of slices = 16 slice
Step-by-step explanation:
Given:
Total amount spend = $36
Cost of each slice = $2.25 per slice
Number of slices = x
Find:
Equation
Computation:
Total amount spend = Cost of each slice × Number of slices
36 = 2.25(x)
x = 16
Number of slices = 16 slice