Can somebody who knows how to find the rates and ratios pls answer these word problems thanks!! (Answer as many as u can) :)
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST!!!:DDD
Answers
Answer:
10.900km/h 11. a. 5:3 b. 3:5
Step-by-step explanation:
10. 2700/3=900
11. A. 5:3
b. 3:5
Related Questions
WILL MARK BRAINLIEST Give the reason why tho following is not a polynomial x^2-3x^-1+5
The three is negative
All exponents are not whole numbers
There are only three terms
The highest exponent is 2
Answers
Answer:
The three is negative
Step-by-step explanation:
A polynomial cannot have a variable in the denominator or a negative exponent so the reasoning is Because the three is negative
I need help on this problem!
Answers
Answer: its the first one and the one before the last!
Step-by-step explanation: Hope this helps!!!
Answer:
I think the second one
write a ratio that is equivalent to 13:2 other than 13:2 itself
Answers
39:6
65:5
130: 10
91:14
Hope this helps :)
8.176 + 5.802 + 41.921
Estimated sum
Exact sum =
Answers
Answer:
57.000
Step-by-step explanation:
Estimated sum
Exact sum =
8.176 + 5.802 + 41.921 =57
8.176 = 9.000
5.802= 6.000
41.921= 42.000
________________
= 57.000
because to round to the nearest thousand
How much of a radioactive kind of antimony will be left after 120 days if you start with 904 grams and the half-life is 60 days?
Answers
==========================================
Explanation:
1/2 = 0.5
Every 60 days, the amount cuts in half.
We start with 904 grams and after 60 days, we have 904*0.5 = 452 grams left over.
After another 60 days, we have 452*0.5 = 226 grams left over.
-------------
Alternative Method:
We can apply the half-life formula.
y = a*(0.5)^(x/H)
where,
y = final amount after x daysa = initial amountx = number of days that elapseH = number of days in a half-lifeIn this case,
a = 904 is the starting amountH = 60 is the number of days until another half-life occursWhen x = 120 days go by, we have....
y = a*(0.5)^(x/H)
y = 904*(0.5)^(x/60)
y = 904*(0.5)^(120/60)
y = 904*(0.5)^(2)
y = 904*(0.25)
y = 226 grams of antimony left over.
This method is preferred over the first method if you have x be some non-multiple of 60, or if x is fairly large.
Solve for h.
h/10 + 5 = 25
so what’s h ??
Answers
Answer:
h=200
Step-by-step explanation:
h/10+5=25
h/10=20
h=200
h/10 + 5 = 25
Subtract 5 from each side to get h/10 alone.
h/10 + 5 - 5 = 25 - 5
h/10 = 20
Multiply both sides by 10 to get h alone.
h/10 • 10 = 20 • 10
h = 200
h = 200. I hope this helps!
imagine you're in a queue to the airport check-in desk if two-thirds of the queue is in front of you and three tenths of the queue is behind you how many people are in the queue
Answers
3/10 behind x3
20/30 In front
9/30 behind
20/30+9/30= 29/30
30 people are in the queue
Step-by-step explanation:
Let x be the number of people in the queue, including yourself.
We have 2/3 x + 1 + 3/10 x = x.
=> 29/30 x + 1 = x
=> x/30 = 1
=> x = 30.
Hence there are 30 people in the queue.
**Due soon, pls help!**
Michael is buying a pair of jeans that regularly cost $40. They are on sale for 20% off. If the tax rate is 6%, what is the sale price of the Jeans
including tax?
Answers
Answer:
The jeans will cost 33.92
Step-by-step explanation:
20% of 40 is 8, and 40 - 8 is 32.
6% of 32 is 1.92 and 32 + 1.92 is 33.92
ANSWER ASAP please!!!!!!!
Answers
Answer:
2.11
Step-by-step explanation:
3.5 x 2 + 9 = 16
10.4 - 1.4 x 2 = 7.6
16/7.6
= 40/19 or 2.11 to the nearest hundredth
Therefore the answer is 2.11
Answer:
2.11
Step-by-step explanation:
i took this myself
Find the area of the circle. Round your answer to the nearest hundredth.
2cm
Answers
Area of a circle = pi x r^2
Remember, the radius is just half of the diameter! Then to square a number, is to multiply it by itself once.
pi x 1^2 =?
pi x 1
Pi
The circumference of your circle is approximately 3.14 cm squared.
An exponential function contains the points: (2, 121) and (3,
133.1)
What is the exponential function that contains these points?
Answers
can yall help me plz im not good at this
Answers
Answer:
D
Step-by-step explanation:
Hope this helps :D Hav a great day :P
What is the area of the figure below??? Giving first answer brainliest as long as they have an explanation! Worth 10pts!!
Answers
28inch^2
Step-by-step solution:Rectangle:
[Length x Breadth]
5 + 3 = 8inch
8 x 2.5 = 20inch^2
Right Triangle:
[1/2 x Base x Height]
1/2 x 5 x 2 = 1/2 x 10
= 5inch^2
Left Triangle:
[1/2 x Base x Height]
1/2 x 3 x 2 = 1/2 x 6
= 3inch^2
20 + 5 + 3 = 28inch^2
As an estimation we are told 5 miles is 8 km.
Convert 68 km to miles.
Answers
Answer:
42.5 miles
Step-by-step explanation:
68 : 8 = 8.5 km
8.5 x 5 = 42.5 miles
The side length of an equilateral triangle is 6x - 12. Write an expression for the perimeter of the triangle in simplest form.
Answers
Answer:
18x - 36
Step-by-step explanation:
In an equilateral triangle the 3 sides are congruent, then
perimeter = 6x - 12 + 6x - 12 + 6x - 12 ← collect like terms
= 18x - 36
The required expression would be 18x - 36 for the perimeter of the triangle in simplest form.
What is the perimeter of a triangle?The perimeter of a triangle is defined as the addition of the lengths of the triangle's three sides.
What are Arithmetic operations?Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operations is called the arithmetic operator.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
As we know in an equilateral triangle the 3 sides are congruent.
The perimeter of the triangle = 6x - 12 + 6x - 12 + 6x - 12
Combine the likewise terms and we get
The perimeter of the triangle = 18x - 36
Therefore, the required expression would be 18x - 36 for the perimeter of the triangle in simplest form.
Learn more about the perimeter of a triangle here:
brainly.com/question/24388271
#SPJ6
Linear or nonlinear
Will mark brainliest hurry
Answers
Answer:
nonlinear
Step-by-step explanation:
The correct answer is nonlinear because of the 2x^2, it does not come out as a straight line
Which values are greater than -2
Answers
Answer:
what are the choices
Step-by-step explanation:
Find the x-intercept and y-intercept of the line.
- 8x+ 5y = 18
Write your answers as exact values. Do not write your answers as ordered pairs.
x-intercept:
Y-Intercept:
Answers
Y= 18/5
I’m so sorry if I’m wrong:(
Help Me Please I would appreciate it!!!!
Answers
9514 1404 393
Answer:
y +2 = (1/4)(x +1)
Step-by-step explanation:
The given line is in slope-intercept form:
y = mx + b
where the slope (m) is -4 and the y-intercept (b) is +13.
For the perpendicular line, we need a slope that is the opposite reciprocal, or ...
-1/m = -1/(-4) = 1/4
A suitable form for the desired equation is the point-slope form:
y -k = m(x -h) . . . . . . line with slope m through point (h, k)
For m=1/4 and (h, k) = (-1, -2), the equation of the line is ...
y +2 = (1/4)(x +1)
I need helppppppppppppp0p
Answers
Explanation:
(axb)xc=
the associative property of multiplication
Answers
please answer this im going to fail Rewrite the fraction as a decimal.
\dfrac{13}{10}=
10
13
Answers
Step-by-step explanation:
it ia 76.92 is the percentage for 10/13
please help me!! will give brainliest, so pls dont ignore.
Answers
Answer: Domain- All real numbers, Range- y>4
Step-by-step explanation:
:)
Find the distance between the two points in simplest radical form. (4,4) and (8,-3)
Answers
Answer:
2/5
Step-by-step explanation:
If you have two point of the form(x_1,y_1) and (x_2,y_2) then the distance between these points is d=√(x_1-x_2)^2+(y_1-y_2)^2
In this case:
d=/(-8-(-6))^2+(-2-2)^2
d=/(-8+6)^2+(-4)^2
d=/(-2)^2+16
d=/4+16
d=/20
d=2/5
Answer:
Square root 65 is the correct answer
Step-by-step explanation:
delta math.
9.
Brian says that ABCD is a right triangle. Is he correct? Explain.
B
17 m
13.5 m
21.7 m
Answers
Answer:
sorry but can u give me full question
Step-by-step explanation:
like picture
Order the following numbers from least to greatest.
Put the lowest number on the left.
18 , -53 , -24 , 0
Answers
Answer:
-53, -24, 0, 18
Step-by-step explanation:
Hope this helps :)
Please answer fast!!!
Answers
Answer:
it's the 2and answer because
Step-by-step explanation:
1,15 is not the same ratio of 2,24
Answer:
No, because 1:15 is not the same ratio as 2:24.
Step-by-step explanation:
2/24 reduces to 1/12 not 1/15 so these ratios are not the same.
Last year at a certain high school, there were 75 boys on the honor roll and 120 girls on the honor roll. This year, the number of boys on the honor roll increased by 24%, and the number of girls on the honor roll increased by 10%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).
Answers
Answer:
15.4
Step-by-step explanation:
im too tired to explain -_-
4(x-2)/5 = 20
(Yes that’s a fraction)
Solving for x
Answers
Answer:
x=27
Step-by-step explanation:
Step 1: Multiply both sides by 5.
4(x−2)
5=20
(4(x−2)*(5)*(5)=(20)*(5)
4(x−2)=100
Step 2: Simplify both sides of the equation.
4x−8=100
Step 3: Add 8 to both sides.
4x−8+8=100+8
4x=108
Step 4: Divide both sides by 4.
4x/4=108/4
x=27
Step-by-step explanation:
(x-2)/5 = 5
(x-2) = 25
x = 27
Pls halp I need it fast so please try your best to be fast