Please help! 20 points and brainly!!
Which ratio forms a proportion with 14/42? 1/4 7/21 12/40 28/80
(Please explain how you got the answer)

Answers

Answer 1

Answer: 7/21 is the answer because 7 * 2 = 14 and 21*2=42

Step-by-step explanation:

Answer 2

Answer:

7/21

Step-by-step explanation:

This Correct Answer


Related Questions

Samuel earns $5 per hour plus 65% commission on all his sales. If y represents
his sales for one day, which expression represents Samuel’s total earnings for a
day when he worked 6 hours?
A. 5(6) + 65y
B. 5(65) + 6y
C. 5(6) + 0.65y
D. 5(6) + 1.65y

Answers

Answer:

B

Step-by-step explanation:

Answer:

5(6)+0.65y

Step-by-step explanation:

$5(6hrs)+65÷100=0.65

5(6)+0.65y

[tex]x^2+8x+11=0[/tex]

Answers

Answer : what’s the question ?
If you are looking for it to be solved in quadratic equation then it is x=−4±√5

A student records the sexes and breeds of a dog in animal shelter. Which kind of data is the student recording

Answers

Answer:

sexes and breeds duh

Step-by-step explanation:

Answer:

data of the dogs

Step-by-step explanation:

There are three nickels, three dimes, and three quarters in your pocket. You randomly pick a coin. It is a nickel or dime.

Answers

Answer:

(B) mutually exclusive

Step-by-step explanation: hope this helps!

In triangle ABC, what is the measure of angle Cif A = 85°, a = 35, and c = 25?

Answers

yes the answer is C = 25

20%= ?/50. What is the question mark?
7/4
7/1
10/4
3/2

Answers

Answer:

10/4

Step-by-step explanation:

Courtney drove 48 miles to her friends house she got there in a hour and 12 minutes how fast was she driving on average

Answers

Answer:

Yea she drove

Step-by-step explanation:

Answer:

40 mph

Step-by-step explanation:

s=vt

v = s/t

putt values

Samantha and her friends are going on a road trip that is 245 7/50 miles long. They have already driven 128 53/100. How much farther do they have to go?

Answers

Answer:

They have to drive 182, 2820 miles more.

Step-by-step explanation:

... ;)

Answer:

no :)

Step-by-step explanation:

I’ll give brainliest
At Silver Gym, membership is $25 per month, and personal training sessions are $40 each. At Fit Factor, membership is $55 per month, and personal training sessions are $30 each. In one month, how many personal training sessions would Sarah have to buy to make the total cost at the two gyms equal?

Answers

I’m not sure if this answer.

All of the following are equivalent, except _____.

(8 + 3)x
11x²
11x
8x + 3x






hellllllllllllppppppppppp

Answers

Answer:  B)   11x^2

Explanation:

Choice A combines to 11x since the 8+3 simplifies to 11.

Choice D is a very similar story. Think of having 8 boxes, which we denote in shorthand as 8x. Then adding on 3 more boxes leads to adding on 3x. Having 8 boxes plus another 3 boxes gives 8+3 = 11 boxes total. So that's why 8x+3x = 11x. Alternatively, we can factor out the x to say 8x+3x = (8+3)x.

This shows choices A,C, and D are equivalent expressions. Choice B is the odd one out.

PLEASE ANSWER THESE FOR GOD SAKE IF YOU DONT KNOW THEN DONT ANSWER PLEASE. Giving up all my points.... I only had 28

Answers

Answer:

d. y=2x-8

b. y=3/4x-1 & y=-4/3x+9

Step-by-step explanation:

I used desmos and put in all of the answer options to see which one worked the best.

What are the zeros of the function defined by 2x^2 - 9x + 4?
O A. -1/2, -4
O B. -1/2, 4
OC. 1/2, -4
O D. 1/2, 4

Answers

The answe is c I think

A toy maker wants to re-create the Wright Brothers 1903 airplane. The actual plane was 21 feet long. The toy maker wants to use a scale model of 3 feet = 2 inches. How long will the replica plane be?

Answers

Answer:

[tex]x = 14ft[/tex]

Step-by-step explanation:

Given

[tex]Actual\ Length = 21ft[/tex]

Model:

[tex]3\ ft = 2\ in[/tex]

Required

Determine the length of the replica

Represent the model as a ratio:

[tex]Ratio = 3\ in:2\ ft[/tex]

Convert to fraction

[tex]Ratio = \frac{3\ in}{2\ ft}[/tex]

Represent the actual lengths as a ratio

[tex]Ratio = 21\ ft : x[/tex]

Where x is the length of the replica

Convert to fraction

[tex]Ratio = \frac{21\ in}{x}[/tex]

Equate both ratios (because they are in proportion)

[tex]\frac{3\ in}{2\ ft} = \frac{21\ in}{x}[/tex]

[tex]\frac{3}{2\ ft} = \frac{21}{x}[/tex]

Cross Multiply:

[tex]3 * x = 21 * 2\ ft[/tex]

[tex]3x = 42\ ft[/tex]

Solve for x

[tex]x = \frac{42ft}{3}[/tex]

[tex]x = 14ft[/tex]

Hence, the length of the replica is 14ft

Covert the equations from standard form to slope intercept form y=-3 and x=-6

Answers

Answer:

y = -3x + 0

and

y = -6x + 0

Step-by-step explanation:

I think this is correct we're currently working on slope in my class.

charli has 100 million!!!

Answers

I know!! Why don’t people respect her she’s a good kid!

f(x)=4x-3

find f(5)​

Answers

Answer:

17

Step-by-step explanation:

4(5)-3

20-3

17

the answer is 17

Write 2200 feet to 6 seconds as a rate in lowest terms. Label the rate correctly.
1100 feet/6 sec
2200 feet/6 sec
2200 feet/3 sec
1100 feet/3 sec

Answers

Answer:

1100/3

Step-by-step explanation:

If the mean of the four numbers 4, 8, 2x and
12 is 10, then x is

Answers

Answer:

8

4+8+2x+12=10*4

24+2x=40

2x=16

x=8

The quotient of a number and 8 decreased by 17 is -15. What is the number?

Answers

Answer: 1/4

Step-by-step explanation:

A shirt is advertised for 30% off the list price of $19.00. What is the sale price?

The sale price is $ ????????????

Answers

Answer:

13 dollars

Step-by-step explanation

30 percent - 0.3

0.3 times 19 = 13

Answer:

$13.30

Step-by-step explanation:

This problem is asking you to find thirty percent of nineteen. So, after setting up the proportion and doing the cross multiplying, I found that the amount of the discount is five dollars and seventy cents.

Now that I have the discount price, I just needed to subtract that from the regular price. Nineteen dollars minus five dollars and seventy cents is thirteen dollars and thirty cents. The cost of the shirt on sale is thirteen dollars and thirty cents.

What is 30% of 19? ?/ 19 = 30/100  19 x 30 = 570 ÷100= 5.7. The discount is $5.70 $19.00-$5.70= $13.30. so the sale price is $13.30

HELP ILL GIVE BRAINLIEST AND POINTS
Find the percent decrease. Where necessary round to the nearest tenth of a percent

1. from 60 to 48

2. from 180 to 108

3. from 64 to 24

4. from 6.5 to 4.8

5. The average cost of a gallon of gasoline was $1.29 in 1997 and $1.12 in 1998. Find the percent of decrease.

Answers

Answer:

Hey, ill do like 2 and you can do the rest

percent decrease or change is

new-old over old

So like #1

1) 60 is old, 48 is new

so 48-60=-12

now over old which is 60

-12/60

-1/5

20 percent decrease

2) 180 is old, 108 is new

108-180=-72

-72/180

40 percent decrease

Step-by-step explanation:

Help once more please

Answers

Answer:

84

Step-by-step explanation:

they are all equal sides so what you'd do is 28+28+28= 84

Answer: 56

Step-by-step explanation: It's an equilateral shape so all sides are equal, so then both angle UVS and UTS are congruent to each other. But since it's asking for the whole angle T you can just do 28+28=56 and that's your answer. Hope I'm right

If f(x) = 7x - 3, then f(4) = ?

Answers

Step-by-step explanation:

7(4)-3=25

i hope it will help

You have at most 8 hours to spend at a beach and at a planetarium. You want to spend more than 2 hours at the beach and at least 2 hours at the planetarium. Let x be the number of hours at the beach and let y be the number of hours at the planetarium. Which system represents the situation

Answers

Answer:

x > 2

y ≥ 2

x + y ≤ 8

Step-by-step explanation:

Here, we want to write a system of equations according to the given variables

More than means, greater than

since x is the variable we want to use;

x > 2

At least 2 hours means greater than or equal to 2

That is mathematically represented as;

y ≥ 2

At most means less than or equal to

So;

x + y ≤ 8

i need help because i dont understand it

Answers

Answer:

6,371.15

Step-by-step explanation:

3.14 times 13^2 times 12

Answer:

Volume equals pi times radius to the power of 2 times height

that will be pi times 13^2 times 12= 6,367.92

radius is the 13 and you have to put it to the power of 2 and multiply it by 3.14 which is pi and multiply it by 12 and the answer is 6,367.92

Step-by-step explanation:

A circular clock has a circumference of 48.5 meters. What the measurement of the radius, in meters, of the clock?

Answers

Answer:

The radius of the clock is 7.72 meters

Step-by-step explanation:

Here, we want to calculate the radius of a clock which has a circumference of 48.5 m

Mathematically;

Circumference C = 2 * pi * r

48.5 = 2 * 22/7 * r

7 * 48.5 = 44r

r = (7 * 48.5)/44

r = 7.72 meters

45 points I will give BRAINLIEST! I give stars to! First place gets Brainlest, 5 stars, and a heart! Second place gets 4 stars and a heart! But it has to be right or you won't get anything.

Write the percent as a fraction in simplest form and as a decimal. 23.5%
The fraction is
The decimal is

Answers

Answer:

Fraction:  47/200

Decimal: 0.235

Step-by-step explanation:

Answer:

fraction is 47/200

decimal is 0.235

Step-by-step explanation:

sorry i forgot to add a couple numbers i was in a rush

Armoni took a quiz. On her quiz, she got a 95%. If there were 20 questions on the quiz, how many did Armoni get correct?

Answers

Answer:

19 questions right

Step-by-step explanation:

95% > .95

.95 * 20 = 19

Armoni got 19 questions correct

hope it helps!

f(x) = -4x^2+ 10
Find f(-2)

Answers

Answer:

-6

Step-by-step explanation:

plug -2 into x

-6 should be the correct answer

What is the slop of a line that passes through (2,10) and (1,6)

Answers

Answer:

4

Step-by-step explanation:

Slope is x2-y2/ x1-y1

So, its 6-10/1-2

or, -4/-1

Or 4.

Hope this helps you!

#Team Rainbows.

Answer:

4.

Step-by-step explanation:

The slope = (difference in y coordinates) / (corresponding difference in the x coordinates)

= (10-6)/ (2-1)

= 4 / 1

= 4.

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