Tell whether the ratios form a proportion. 2 : 4/5, 3/4 : 3/10
Yes, they are in proportion as both the ratios equal to 5 : 2.
what is ratio and proportion?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.
Given here first ratio as = 2 : 4/5
= 10 : 4
= 5 : 2
and the second ratio as = 3/4 : 3/10
= 1/4 : 1/10
=10 : 4
= 5 : 2
Hence both the ratio are equal and therefore in proportion.
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11 1/2f = 103 1/2 find the value of f
Answer:
Step-by-step explanation:
F is 10
The cost to join the Ski Club is $270. You pay a deposit of $95.50 and plan to save an additional $20 per week to pay for the cost. What equation will you use to find the number of weeks x you will need to save? *
Answer:
9 weeks
Step-by-step explanation:
he will need to save for 9 weeks and will have 5.5 dollars left over
A printing error in a math book removed the brackets and parentheses from a numerical expression. Rewrite the expression 32 + 7 x 4 + 5 with parentheses so that it is equivalent to 69
help hopefully i can give brainliest if it works
Answer: (3^2+7) x 4+5
Step-by-step explanation:
(3^2+7) x 4+5 = (9+7) x 4+5 - square 3
=16 x 4+5 add 9 and 7
=64 + 5 multiply 16 and 4
=69
The printing error in a math book will be 4.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
A printing error in a math book removed the brackets and parentheses from a numerical expression.
The numerical expression is given below.
⇒ 32 + 7 x 4 + 5
Simplify the numerical expression, then we have
⇒ 32 + (7 x 4) + 5
⇒ 32 + 28 + 5
⇒ 65
The printing error in a math book will be given as,
⇒ 69 - 65
⇒ 4
The printing error in a math book will be 4.
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Please help. This is due today and I really have no idea what I’m doing.
explain cause and effect of squanto and somerset relationship with pilgrims i need aparagraph
I’ll give you 20 points if you answer this (don’t put any random sentence or I’ll report you)
6. Brandom can swim 15 laps around the pool in 40 minute. Peter can swim 10 laps in 25 minutes.
a. Write the rate at which each boy swim.
________________________________
b. Write the unit rate at which each boys swims.
________________________________
c. If both boys continue swimming, which boy will swim 20 laps first? How do you know?
________________________________
I need help pls :c and thx u!
Answer:
A. Brandon can swim 0.375 laps every minute and Peter can swim 0.4 laps a minute.
B. Brandon 0.375 laps a minute Peter 0.4 laps a minute
C. Peter will swim 20 laps first I know because the rate at which he swims is faster than Brandon's
Which statement correctly compares 4⋅10−10 and 3⋅[44−3⋅(6+6)]?
4⋅10−10>3⋅[44−3⋅(6+6)]
4⋅10−10=3⋅[44−3⋅(6+6)]
4⋅10−10<3⋅[44−3⋅(6+6)]
Answer:
The first one 4⋅10−10>3⋅[44−3⋅(6+6)]
Step-by-step explanation:
Answer:
4⋅10−10>3⋅[44−3⋅(6+6)]
Step-by-step explanation:
im on k12 and did the test
Which situation can be represented by the equation
y=12x?
A.
Victoria went to school for x years.
This is 12 times y, the number of years her brother went to school.
B.
Victoria spent x dollars to buy a gift for her brother.
She gave the cashier y dollars and received $12 in change.
C.
Victoria has y dollars.
This amount is 12 times x, the amount of money in dollars Victoria’s brother has.
D.
Victoria is y years old.
Her age is 12 years greater than x, her brother’s age in years.
i think it is c but i really dont know
At a basketball game, a vender sold a combined total of 124 sodas and hot dogs. The number of hot dogs sold was 54 less than the number of sodas sold. Find the number of sodas sold and the number of hot dogs sold
There were 89 sodas and 35 hot dogs sold.
What is an equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
Let the number of sodas would be x and the number of hot dogs would be y
x + y = 124 ....(i)
y = x - 54 ....(ii)
Substitute the value of equation (ii) in (i), and solve for x
124 = x + x - 54
Add 54 to the above equation, and we get
178 = x+x or
178 = 2x.
Divide each side by 2 into the above equation, and we get
x = 89
Substitute the value of x = 89 in equation (i), and solve for y
y = 124 - 89
y = 35
Hence, There were 89 sodas and 35 hot dogs sold.
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Help meeeeeeeeeeeeeeeeeee
10 poiiiiintsssss
Answer: no i do not agree.
Step-by-step explanation:
Try n = 2 and you will see the answer
8(2) + 6
16 + 6
22
2{4(2) + 3}
2(8+3)
2(11)
22
14(2)
All 3 do not equal to each other. Proving that Juwon's statement is wrong.
Answer:
The first two are equivalent but different than the third.
Step-by-step explanation:
[tex]8n+6 = 2(4n+3) => 6=6\\8n+6 = 14n => 6n = 6 => n = 1\\\\[/tex]
The first two are identical by factoring 2 out of the first one, or distributing 2 in the second one.
The equality of the first and third equations, suggests that it is only true for n = 1.
To prove it wrong, find a number that shows the inequality:
[tex]n = 2\\8n+6 = 2(4n+3) = 22\\14n = 28\\\\22 \neq 28[/tex]
What is the value of "a"?
ill give brainliest to whoever answers this question correctly
Answer:
a=14
Step-by-step explanation:
so as you can see what get 8 to sixteen?
x2 so 8x2=16 you go over to the seven and do the same 7x2=14 a=14
The table below shows data from a survey about the amount of times students spend doing homework each week. The students were either in college or in high school:
Which of the choices below best describes how to measure the spread of this data?
A- Both spreads are best described with the IQR.
B- Both spreads are best described with the standard deviation.
C- The college spread is best described by the IQR. The high school spread is best described by the standard deviation.
D- The college spread is best described by the standard deviation. The high school spread is best described by the IQR.
Answer:
in table data from a survey about the amount of time students spend doing homework each week. The students were either in college or in high school: High Low Q1 Q3 IQR Median Mean σ
College 50 5 7.5 15 7.5 11 13.8 6.4
High School16 0 9.5 14.5 5 13 10.7 5.3 Both spreads are best described with the standard deviation.
Step-by-step explanation:
The true statement is that: (b) Both spreads are best described with the standard deviation.
OutliersTo determine the spread to use for the dataset, we start by checking for outliers using:
[tex]L = Q_1 - 1.5 \times IQR[/tex]
[tex]U = Q_3 + 1.5 \times IQR[/tex]
CollegeFor the college, we have:
[tex]L =8 - 1.5 \times 10 = -7[/tex]
[tex]U = 18 + 1.5 \times 10 = 33[/tex]
The range of the dataset is 6 to 20.
This means that, there is no outlier in the college dataset
High SchoolFor the high school, we have:
[tex]L =5.5 - 1.5 \times 10.5 = -10.25[/tex]
[tex]U = 16 + 1.5 \times 10.5 = 31.75[/tex]
The range of the dataset is 3 to 20.
This means that, there is no outlier in the college dataset
Since there are no outliers in both dataset, then it is best to use the standard deviation to describe the spread
Hence, both spreads are best described with the standard deviation.
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h - 9 = 7
explain how you found h
Answer:
h=16
Step-by-step explanation:
h-9=7
h=9+7
h=16
I hope this helps.
Answer:
H=16
Step-by-step explanation:
H is a variable representing an unknown number. What you would do for this equation is:
Start with a number like 10, and plug it into the eqation where h is, 10-9=7
We know that is a false statement. So since 10-9=1, all you do is think what plus one equals 7. 1+6=7 so take 6 and add it to 10. Replace the variable h with 16. 16-9=7
That is correct, so H=16.
y = 0.5x - 2 ______
Identify the constant of proportionality.
Answer:
1/9 is the constant of proportionality
Step-by-step explanation:
Find the slope of the line through the pair of points.
C(3, –4), D(–2, 2)
Answer:
6/-5
Step-by-step explanation:
Just follow the equation
[tex]\frac{y2-y1}{x2-x1}[/tex]
In this case
y1=-4
y2=2
x1=3
x2=-2
Now if you do everything correctly
The answer is 6/-5
I'll give u branley: A recipe calls for 10 cups of flour to make 60 pancakes. How many pancakes can be made with a single cup of flour?
Answer: 6
Step-by-step explanation:
60/10 is 6
Answer:
6 pancakes
Step-by-step explanation:
60 divided by 10 is 6.
The following items were bought on sale. Complete the missing information.
(Instructions: Add $ symbol before the Amount , % after the discount )
Answer:
$64
20%
25%
Step-by-step explanation:
Lmk if this helps! :)
Answer:
1.) 64$
2.)20% off
3.)25%off
Step-by-step explanation:
Which of the following shows the correct evaluation for the exponential expression (6/7) 2?
6/7+2= 2 6/7
6/7x2= 1 5/7
6/7 x 6/7= 36/49
6/7 + 2 = 6/14
Mary had a lemonade stand. In one day she sold 65 glasses of lemonade.
If each glass contained 150 MILLILITERS of the lemonade, how many
LITERS did she sell in all?
Answer:
9.75 - the second one
Step-by-step explanation:
65 × 150 = 9750
to convert from ml to l you divide by 1000
9750 ÷ 1000 = 9.75
the price of a stock decreased by $0.60 one week, decreased $0.10 the next week, and decreased another $0.20 the following week. What is the average change in the price of the stock over the three weeks?
: -270
: -90
: -87
: -30
Answer:
-90
Step-by-step explanation:
$0.60+$0.10+$0.20= $0.90. which is the average
Match each expression to the scenario it represents.
Expressions
Scenario
the price of a game that’s been discounted
18% off its list price (x)
arrowRight
the price of a toy that sells for 18% more
than the amount (x) needed to build the toy
arrowRight
the volume of water remaining in a tank after
of its original volume (x) is drained out
arrowRight
the total amount of flour in a bakery after receiving new stock equal to of its current stock (x)
arrowRight
Using proportions, the amounts are given as follows:
18% off: 0.82x.18% more: 1.18x.Volume after [tex]\frac{3}{10}[/tex] is drained out: [tex]\frac{7x}{10}[/tex]New stock: [tex]\frac{13x}{10}[/tex]What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, the amounts are found as follows:
18% off its list price (x), that is, 82% of x, hence 0.82x.Sells for 18% more, that is, 118% = 1.18 of x, hence 1.18x.When three tenths of the volume is drained out, the remainder is 100% = 1x subtracted from that, hence [tex]\frac{7x}{10}[/tex].For the new stock, three tenths of x plus the current stock of x, hence [tex]\frac{3}{10}x + x = \frac{13}{10}x[/tex].More can be learned about proportions at https://brainly.com/question/24372153
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please help and provide your explanation on how you got that answer :)
Wich ratio is equivalent to 7:3
I put rwenty points into this so pls help me
Answer:
3 and fraction
Step-by-step explanation:
Answer:
3?
Step-by-step explanation:
please help asap i give brainliest :c
Answer:
C
Step-by-step explanation:
for her refrigerator
24 %
89.5 %
10.5 %
76 %
Answer:
A
Step-by-step explanation:
I believe the answer is A. Good luck on your test!
Answer:
89.5 %
Step-by-step explanation:
I will give brainliest to whoever answers correctly and is first
Answer:
x=16
Step-by-step explanation:
4x+21=85 subtract 21 from both sides
4x=64 divide both sides by 4
x=16
Answer:. x=16°
4x+21=85°. ( parallel anglea are equal)
4x=85-21. (move x-es in one side and known numbers in another side)
4x=64°. (subtract)
x=64/4. (4 is multiplied to x, so when it goes to other side of =, it changes sign and divides )
x=16°
Masses of precious stones are measured in carats, where 1 carat = 200 milligrams.
What is the mass of a 80-dg diamond in carats?
Answer:
2/5 carats, or 0.4 carats
Step-by-step explanation:
200/80 = 2.5
1/2.5 = 0.4