Answer:
1 true
2 false
3 false
4 true
P.S I TRIED MY BEST
Step-by-step explanation:
The required values of ratios are 9/16,3/2, 7/6 and 1/12 respectively. The only false option is (c).
What is the application ratio and proportion?A ratio is the relation between two numbers as a / b. A proportion is the equality of two ratios as a / b = c / d.
Ratio and proportion can be applied to solve Mathematical problems dealing with unit values of the quantities.
All the options are examined one by one as follows,
(a) The ratio of 5/8 to 10/9 is given as,
5/8 : 10/9
= (5/8) ÷ (10/9)
= 5/8 × 9/10
= 9/16
Thus, it is true.
(b) The ratio of 4/7 ∶ 8/21 is given as,
4/7 ∶ 8/21
= (4/7) ÷ (8/21)
= 4/7 × 21/8
= 3/2
Thus, it is true.
(c) The unit rate of 7/9 and 2/3 equivalent to the ratio given below,
7/9 : 2/3
= 7/9 ÷ 2/3
= 7/9 × 3/2
= 7/6
Thus, it is false.
(d) The unit rate of 9/16 and 27/4 equivalent to the ratio given below,
9/16 : 27/4
= 9/16 ÷ 27/4
= 9/16 × 4/27
= 1/12
Thus, it is true.
Hence, the ratios for the given options are obtained as 9/16,3/2, 7/6 and 1/12 respectively.
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y=12x+11 If x=−1, then y= ?
(write your answer as a decimal, please)
could i get this anwered in the next 15 mins?
Answer:
answer is a :)
Step-by-step explanation:
48×.1= 4.8
48×0.05=2.4
PLEASE HELP!!! You must show your work to receive credit for this item.
Question 1. (3 points)
28
a. Show that the ratios and form a proportion by finding a
18
common multiplier.
14
36
During a high school field hockey game, every spectator placed his or her ticket stub into one of several containers. After the game, the coach chose sixteen people to march in the victory parade. What is the sample in this situation?
Choose the correct answer below.
The ticket stubs
The field hockey game spectators
The coach
The sixteen people to march in the victory parade
Answer:
The sixteen people to March in the sportsmanship parade
Step-by-step explanation:
A sample refers to a smaller, manageable version of a larger group. It is a subset containing the characteristics of a larger population.
A sample should represent the population as a whole and not reflect any bias toward a specific attribute.
Since the coach chose 16 people to March in the sportsmanship parade, the sample in this situation, The sixteen people to March in the sportsmanship parade is the sample
Answer:The sixteen people
Step-by-step explanation:
A number is equal to twice a smaller number plus 3. The same number is equal to twice the sum of the smaller number and 1. How many solutions are possible for this situation?
Infinitely many solutions exist because the two situations describe the same line.
Exactly one solution exists because the situation describes two lines that have different slopes and different y-intercepts.
No solutions exist because the situation describes two lines that have the same slope and different y-intercepts.
Exactly one solution exists because the situation describes two lines with different slopes and the same y-intercept.
Which expression is equivalent to:
-3(10m - 2) + (3 +6m - 3)?
Group of answer choices
1.-18m
2.-48 + 6
3.-24m +6
4.-24m - 6
At the time that Han reaches the lake and starts to turn back, Jada is 0.6 miles away from the parking lot and hiking at a constant speed of 3.2 miles per hour toward the lake. Han’s distance, d, from the parking lot can be expressed as d = -2.4t + 4.8, where t represents the time in hours since he left the lake.
What is an equation for Jada’s distance from the parking lot as she heads toward the lake?
Answer:
0.6x3.2
Step-by-step explanation:
Please help with these. I will give you brainlist
Answer: 22 and 131
Step-by-step explanation:
Answer:
Step-by-step explanation:
3. slope of CB = rise/run = 5/12 BF = 5 CF = 12
BF ⊥ DF
DB (seg of two farthest points) = √BF²+DF² = √5²+32² = √1049 = 32.4
4. f(x) = 2x² - 5x -3 vertex : A (h,k) for f(x) = ax² + bx +c
h = - b/2a = - (-5 / 4) = 5/4
f = f(h) = 2*(5/4)² - 5*(5/4) - 3 =25/8 - 25/4 -3 = -49/8
A (5/4 , - 49/8) i.e. (1.25 , - 6.13)
negative root: 2x² - 5x -3 = (2x+1) (x- 3) x = - 1/2 y = 0
B (- 1/2 , 0)
x coordinate of AB: 1/2 (1.25 + -0.5) = 0.375
helppppppppppppp meeeeeeeeee
Please help with question 1, and 2. Thank you :)
what are the properties of rational exponents and how are they used tk solve problems
What makes a NUMBER rational is the ability to have a perfect square root, cube root, or have these components: Perfect square/cube, whole number, repeating (pattern) decimal, termination decimal, and I think one more that I can't remember.
The properties of the rational exponents are given and a rational equation is of the form b = aˣ
What are the laws of exponents?
When you raise a quotient to a power you raise both the numerator and the denominator to the power. When you raise a number to a zero power you'll always get 1. Negative exponents are the reciprocals of the positive exponents.
The different Laws of exponents are:
mᵃ×mᵇ = mᵃ⁺ᵇ
mᵃ / mᵇ = mᵃ⁻ᵇ
( mᵃ )ᵇ = mᵃᵇ
mᵃ / nᵃ = ( m / n )ᵃ
m⁰ = 1
m⁻ᵃ = ( 1 / mᵃ )
Given data ,
Let the rational exponent equation be A
Now , the properties of the exponent equations are
mᵃ×mᵇ = mᵃ⁺ᵇ
The powers of the exponents are added together
mᵃ / mᵇ = mᵃ⁻ᵇ
The powers of the exponents are subtracted together
( mᵃ )ᵇ = mᵃᵇ
The powers of the exponents are multiplied together
mᵃ / nᵃ = ( m / n )ᵃ
m⁰ = 1
Any number raised to the power of 0 is 1
m⁻ᵃ = ( 1 / mᵃ )
Hence , the exponents are solved
PLEASE GIVE BRAINLIESTWhich of the following equations is equivalent to 8 – 0.02x = 2.23x + 3.5?
Group of answer choices
800 – 20x = 223x + 35
80 – 2x = 223x + 35
8 = 2x + 223x + 35
800 – 2x = 223x + 350
You can eat ⅔ of a cake in ¾ of an hour. How long will it take you to eat an entire cake?
Please show your work! :)
Please help. Will give brainliest
please help ASAP
Will be given brainliest!!!!
Answer:
C
Step-by-step explanation:
We need common denominator, which in this case is 40.
6*5 is 30 and 4*8 is 32.
We add these up 62/40
Now add the wholes, 5+4 is 9
We have an improper fraction, which will add 1 to 9, causing the answer to be C.
I need help ASAP
If ANYONE gets it right will be given
BRAINLIEST!!!
Last one 9 46/180
It's actually pretty basic
Answer:
9 46/180
Step-by-step explanation:
common denominator is 180 so you will change the fractions to 36 /180 and 10/180. 1+8=9. 36/180+10/180=46/180 answer is 9 46/180
A square prism has square sides with area ++x squared , plus 8 x plus 16 and rectangular sides with area ++2 , x squared , plus 15 x plus 28. What expression represents the surface area of the square prism?
Answer:
10x^2+76x+144
Step-by-step explanation: ayo if i helped thank me i hoped i did have a great day
how do you add radicals with different values?
MATH-IXL , Look at the picture below to answer CORRECTLY. Only give me one right answer So i can mark you as Brainliest!
Damarcus and Xavier went to the arcade to play their two favorite games. Damarcus played 4 rounds of game 1 and 6 rounds of game 2 for $18.00. Xavier played 5 rounds of each game for $20. What is is the cost of game 1?
Answer:
I think the cost of game 1 is $8
Step-by-step explanation:
The distance between Jaimes and his destination is at most 850 miles. If he is driving at a speed of 70 mph and has traveled 150 miles, in how many hours can he expected to be at his destination, assuming that his speed will remain constant? (Write a equation or inequality)
Answer:
it will take 10 hours
Step-by-step explanation:
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PLEASE HURRY!!!
You scan a photo into a computer at four times its original size. You continue to increase its size repeatedly by 100% using the computer. The new size of the photo y in comparison to its original size after x enlargements on the computer is represented by y=2^x+2 . How many times must the photo be enlarged on the computer so the new photo is 32 times the original size?
There are 3 times must the photo be enlarged on the computer so the new photo is 32 times the original size.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The new size of the photo y in comparison to its original size after x enlargements on the computer is represented by,
⇒ y = 2ˣ⁺²
Now, We can formulate;
⇒ y = 2ˣ⁺²
⇒ 32 = 2ˣ⁺²
⇒ 2⁵ = 2ˣ⁺²
By comparing, we get;
⇒ 5 = x + 2
⇒ x + 2 = 5
⇒ x = 5 - 2
⇒ x = 3
Thus, There are 3 times must the photo be enlarged on the computer so the new photo is 32 times the original size.
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please help fast!!!!!!!
Step-by-step explanation:
2: Distributive property (the -2/3 was distributed to (x+12) )
3:combine like terms (the -2/3x was combined with +1/3x)
4:addition property of equality (the -8 was added to both sides of the equation)
5:transitive property (divided both sides by -1/3 to get x alone)
6:symmetric property (rewrote the answer)
Daniel expanded the expression as shown.
-2(-8x-4y+3/4)=10x-8y-1 1/4
What errors did he make? Select three options.
Answer:
B C AND D
Step-by-step explanation:
Answer:
B,C,D
Step-by-step explanation:
Divide. 3.451 ÷ 1.7 = _____ 203--20.3--0.203--2.03
Liz earns a salary of $2,300 per month, plus a commission 5% of her sales. She wants to earn at least $2,500 this month. Enter an inequality to find amounts of sales that will meet her goal. Identify what your variable represents. Enter the commission rate as a decimal.
Answer:
she needs to earn at least $200 more to equal $2,700, so
200=x($amount of needed sales) * .06
200/.06=x
$3,333=x is sales needed to meet goal
variable is $ amount of sales needed to earn $2,700 this month.
Commission rate as decimal=.06
Inequality that represents is...
x> or = $3,333
Dave sells popcorn at the ballpark. He is paid a flat rate of $40 each .day, but also earns $0.45 for each box of popcorn he sells. Dave earns a total of $112 at Wednesday night’s game. How many boxes of popcorn does he sell?
you have to count until 112
Answer:UMM SORRY I GTG IM GETTING TACO BELL WISH I COULD HELP SORRY I HOPE YOU GET IT IM CHEERING YOU ON WHOO HOO
HOORAYYYYYY!!!!!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
I need help with this Needs to completed by today!!!!!!!!!!
3
if you want the interpret you need to sumtract and see if there are more dogs or cats i think...
Answer:
3
Step-by-step explanation:
15 - 12 is 3 animal left
If I'm wrong I'm so sorry!
If I'm right Thank you and (Brainliest plz )
Help me please late homework
Answer:
20.4 goes in the blank
final answer is 33.9
