If x and y are in direct proportion and y is 80 when x is 10, find y when xx is 15.

Answers

Answer 1

Answer:

y = 120

Step-by-step explanation:

If x = y, they can be written as a fraction to show their proportionality as [tex]\frac{10}{80}[/tex]. This is equal to [tex]\frac{1}{8}[/tex], so when x = 1, y = 8. To find when y is equal to x when x = 15, just multiply y by 15. 15(8) = 120, so y = 120 when x = 15.

Answer 2

Answer:

120

Step-by-step explanation:

set up a proportion: 80/10=y/15

solve: 80*15=10y

1200=10y

y=120


Related Questions

Fill in the missing digits to complete the division problem. CLEAR CHECK 9 3 | 3 2 7 6 9 − 2 7 ↓ ↓ 0 6 − 0 0 − 0

Answers

You need to add more information please. So I can answer.

3 divided by 1/9 show work:

Answers

Answer:

3 divided by 1/9 equals 27.

Answer: 27

Step-by-step explanation:

3 ÷ 1/9 =

(3/1)(9/1)

=27

Hope this helps!!! :)

Rashad took a test with 75 multiple - choice questions. If he got 9 questions incorrect,what is the ratio of the questions he got correct to the questions he got incorrect.

Answers

Step-by-step explanation:

If he got 9 questions wrong on a 75 multiple choices test, that means he got 66 right. That means the ratio to the questions he got correct to the questions he got incorrect is 66:9, or 22:3 simplified.

What the person said above me

i will give brainliest

Answers

Probabilities can be expressed as a ratio of the total who fit the criteria and the total who do or do not. In other words, true/total. Here, there are 9 who wear green and 26 who do not. So, the probability is 9/26.

Because the question is asking about the number of female wearing green shirts, the total number of female, 26, will be in the denominator and the total number of females in green shirts, 9, will be in the numerator, so the answer will be 9/26

The speed limit on an interstate highway is 65 miles per hour.

Which cars are driving at or below the speed limit?

Answers

Answer:

There are 5,280 feet in a mile.

There are 60 minutes in an hour.

As a quick check, does this answer look correct? If you were travelling 5 miles per hour slower, at a steady 60 mph, you would be driving 60 miles every 60 minutes, or a mile a minute. If you're driving 65 miles per hour, then, you ought to be going just over a mile a minute — specifically, 1 mile and 440 feet.

While it's common knowledge that an hour contains 60 minutes.

Step-by-step explanation:

If your car is traveling 65 miles per hour, then it is also going 343,200 feet (65 × 5,280 = 343,200) per hour. Then, you can divide the total feet per hour by 60, and you know that your car is traveling 5,720 feet per minute.

Answer:

WHat cars!?

Step-by-step explanation:

Multiply.
(−2.1)⋅(−1.4)

Answers

C , 2.94

Two negatives - • - = + equal a positive

Answer:

(-2.1) x (-1.4) = 2.94

Step-by-step explanation:

May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 10 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

Write 5 ratio equivalent to 9:13?

Answers

18:26
27:39
36:52
45:65
54:78

Answer:

18:2627:3936:5245:6554:78

Step-by-step explanation:

Given ratio,

→ 9:13

The 5 equivalent ratios are,

→ (9 × 2):(13 × 2) = 18:26

→ (9 × 3):(13 × 3) = 27:39

→ (9 × 4):(13 × 4) = 36:52

→ (9 × 5):(13 × 5) = 45:65

→ (9 × 6):(13 × 6) = 54:78

Hence, these are the ratios.

plss need rnnn
The table shows a proportional relationship between x and y.


x 12 18 30
y 4 6 10


Describe the graph of the proportional relationship, in words.
A line beginning at point (12, 4) and continuing through the point (10, 30).
A line beginning at point (12, 4) and continuing through the point (6, 18).
A line beginning at point (0, 0) and continuing through the point (30, 10).
A line beginning at point (0, 0) and continuing through the point (4, 12).

Answers

A line beginning at point (0,0) and continuing to (30,10)

A proportional relationship will always go through the origin so you can eliminate the first two. In the last one the second coordinate is (4,12) which is wrong because the x is 12 and the y is 4. So that is how you know the 3rd option is correct :)

Answer:

A line beginning at point (0,0) and continuing to (30,10)

Step-by-step explanation:

I took the exam and got it right

Grant uses 3 pounds of ground beef to make 12 hamburger patties.

What is the rate of pounds per patty?

Answers

Answer:

0.25 pounds

Step-by-step explanation:

3 : x = 12 : 1

x = 3/12

x = 1/4

x = 0.25 pounds

Answer:

0.25!

Step-by-step explanation:

For a craft project you need 114 inches of ribbon, but it is only sold by the meter. Determine the amount of ribbon, in meters, you need to buy for the project. (1 inch = 2.54 centimeters and 1 centimeter = 0.01 meter)

29
290
3
12

Answers

you need 3 meters of ribbon
114 in times 2.54 cm (per in) is 289.56 cm, then 289.56 cm times 0.01 m (per cm) is 2.89, then round up and you get 3 meters of ribbon

What is the product?

−0.05⋅2412

Answers

Answer:

-1.225

Step-by-step explanation:

You basically multiply both numbers together.

The product of the given expression is -1.225

What is the fundamental principle of multiplication?

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

We are given that expression

−0.05 x 24 1 /2

We have;

−0.05 x 45/2

= -1.225

Hence, The product of the given expression is -1.225

Learn more about multiplications;

https://brainly.com/question/14059007

#SPJ2

In how many ways can a teacher choose 5 out of 13 students?
Step by step if possible pls

Answers

Answer:

infinite(if  u want it mathmatically, 0 because 5 and 13 is prime)

Step-by-step explanation:

1.  just pick five
2. use a wheel 5/13
3. ask another teacher
4. put them in 4 groups, 3 in each and one group has 4 and tell them to choose a leader.
5. use math

and much more

Just pick five and another group of five then leave the three for them self

solve the following proportion
x/2 = 8/9

Answers

Answer:

[tex]\huge\boxed{\sf x = 16/9}[/tex]

Step-by-step explanation:

Given proportion:

[tex]\displaystyle \frac{x}{2} =\frac{8}{9} \\\\Cross \ Multiply\\\\x \times 9=2\times 8\\\\9x = 16\\\\Divide \ 9 \ to \ both \ sides\\\\x = 16/9\\\\\rule[225]{225}{2}[/tex]

X=16/9
Cross multiply
2x8
=16
Xx9
=9x
Divide both sides by 9
=16/9

PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11111

Answers

£70,000 times by 1.08^3
The answer and solving out steps

Zareen spends RS 280 in a week on food, and Mamta spends
RS900 a month. Are they spending a proportional
amount . Why or why not?

Answers

Answer:
No

Explanation:
There is at least 4 weeks in a month. So, 280x4=$1120 which is greater than $900

Zareen spends more per month compared to Mamta.

Answer:

C.20%

78-65=13   than

Then you cross multiply and divide

13/65 = x/100

When you cross multiply and divide you should get 20 for X making the tip 20%.

hope it help's :)

Find the missing values in the ratio table. Then write the equivalent ratios.

Answers

The missing  values of the above ratio table are

1. 1 cake

1. 20 pies

2. 2 cakes

3. 25/3 pies

1)Given  :  3 cakes  =  5 pies

  then,  1 cake     =  5/3pies

       

2) 12 cakes  =  12 × 5/3

                    = 20 pies

3) 10/3  ×  3/5   =  2 cakes

4) 5 × 5/3    =   25/3 pies

Learn more about Ratio and Proportions at

brainly.com/question/13513438

answer: the top two are 20 in the first box then 7 in the next for pies

the answer is 1 for the remaining box in cakes

A soda dispenser puts out 6 ounces of orange soda to every 8 ounces of cola.

How do you express the ratio 6:8 as a unit rate?

Answers

Step-by-step explanation:

6+8= 14

6/14×100=3/7×100=300/7=42.85

8/14×10=4/7×100=400/7=57.14

Answer:

0.75

Step-by-step explanation:

in a unit rate the denominator is always 1. So, to find unit rate divide the denominator with the numerator in a way that the denominator becomes 1.

Draw a right-angled isosceles triangle and write its measures.

Answers

Answer:

45 ∘,45 ∘ ,90 ∘

Step-by-step explanation:

Since, the angle is right angled isosceles triangle. One of the angles will be 90 ∘

. let the other two angles be x

Thus, sum of angles = 180

90+x+x=180

2x=90

x = 45 ∘

The measure of each angle is: 45 ∘ ,45 ∘ ,90 ∘

___________

pls give me

brainlistttt

I need help with this can you please help.↑↓

Answers

Answer:

O = 8

K = 0

L = 1

V = 7

I = 2

M = 4

H = 9

E = 6

T = 9

N = 5

Step-by-step explanation:

May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 10 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

Answer:

1) O = 8

2) K = 0

3) L = 1

4) V = 7

5) I = 2

6) M = 4

7) H = 9

8) E = 6

9) T = 9

10) N = 5

Step-by-step explanation:

Kenny bought a 50-pound bag of chicken feed for $29.98 and a 25-pound bag for $15.49. Can you use proportional reasoning to find the price of a 40-pound bag? Explain.
Yes; The ratio of pounds to cost is equivalent.


Yes; The unit rates are the same.


Yes; The line containing these two points passes through the origin.


No; There is no constant of proportionality.

Answers

Answer:

No; There is no constant of proportionality.

Step-by-step explanation:

29.98 divided by 50 is 0.5996 and 15.49 divided by 25 is 0.6196. They are not proportional nor are they equal. There is a difference of 0.02.

no hope this helpped you

What is the value of this expression?

{5×(13−8)}+12÷6
HELP NOW PLSSSS

Answers

Answer:

27.

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

[5x 13-8)]+12/6


=[5x(5)]+12/6


=25+2

= 27

Convert 24/25 into percentage?

Answers

Answer:

96%

Step-by-step explanation:

Answer:
96%

Explanation:
(24/25) = (x/100)
25x = 2400
X = 96%

Which story problem could be solved using the given equation?

Answers

It’s number 4 I think

Convert the following decimals into percentages:
0.004, 0.26 & 0.58

Answers

Step-by-step explanation:

Convert the following decimals into percentages:

0.004 * 100 = 0.4%

0.26 * 100 = 26%

0.58 * 100 = 58%

If xx and y vary directly and y is 21 when x is 7, find y when x is 5

Answers

Answer:

y = 15

Step-by-step explanation:

We need to solve for k

y = x

21 = 7k  Divide both sides by 7 to solve for k

3 = k

y = xk

y = 5(3)

y = 15

Answer: y = 15

Step-by-step explanation:  

What is the product?

Answers

Answer:

-3/16

Step-by-step explanation:

Given problem,

→ (3/8) × (-3/6)

Let's solve the problem,

→ (3/8) × (-3/6)

→ (3 × -3)/(8 × 6)

→ -9/48

→ -3/16

Hence, answer is -3/16.

Answer:

[tex]\frac{1}{8}*(-\frac{3}{2})\\ =-\frac{3}{16}[/tex]

Step-by-step explanation:

A school charges $120 for 8 tickets to the class play.

What is the price per ticket?

Answers

Answer: $15

Step-by-step explanation: To solve this, just divide 120 by 8:

120÷8=15

hope this helps!

please give brainliest!

$120/8=$15 so $15 per ticket

(Sample Spaces LC)

Which event will have a sample space of S = {h, t}?

Flipping a fair, two-sided coin
Rolling a six-sided die
Spinning a spinner with three sections
Choosing a tile from a pair of tiles, one with the letter A and one with the letter B

Answers

Answer: The sample space S of a random experiment is defined as the set of all possible outcomes of an experiment. In a random experiment, the outcomes, also known as sample points, are mutually exclusive (i.e., they cannot occur simultaneously).

Step-by-step explanation: All we have to do is multiply the events together to get the total number of outcomes. Using our example above, notice that flipping a coin has two possible results, and rolling a die has six possible outcomes. If we multiply them together, we get the total number of outcomes for the sample space: 2 x 6 = 12!

Answer: A: Flipping a Flair, two-sided coin

Step-by-step explanation:

Write the parts of the triangle XYZ that are congruent to triangle PQR

Answers

Answer:

Step-by-step explanation:

PQ=XY (SIDE)

PR=XZ (SIDE)

QR=YZ. ( SIDE)

<P=<X. ( ANGLE)

<Q=<Y (ANGLE)

<R=<Z (ANGLE)

I cannot see the part of the image that shows the letters in correspondence with the two triangles

What is the product in simplest form?

Answers

-20/27
explanation: you multiply the numerators and multiply denominators to get 40/54. you then simplify by dividing both numerator and denominator by two to get 20/27

Answer:

c) -20/27

Step-by-step explanation:

Given problem,

→ (-8/9) × (5/6)

Then the product will be,

→ (-8/9) × (5/6)

→ (-8 × 5)/(9 × 6)

→ -40/54

→ -20/27

Hence, answer is -20/27.

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