The rational number -21/28 in standard form is
a) -3/4
b) 3/4
c) 3/7
d)-3/7

Answers

Answer 1
Answer:
-3/4

Explanation:
-21 and 28 are both multiples of 7. Divide the numerator and denominator by 7 to simplify it.

-21/28
= -3/4

I hope this helps!

Related Questions

solve each system of equations algebraically y= x-6 y= 2x

Answers

Answer: x = -6

Step-by-step explanation: The problem gave us the y value, so we can just substitute it into the equation and solve it.

y = x - 6

y = 2x

2x = x - 6 (substitute the y value into the equation)

1x = -6 (subtract x on each side)

x = -6 (1x is basically saying x so you do not need to divide)

An airplane can cruise at 570 mph. How far can it fly in 4/3 hours?

Answers

Answer:

The plane can fly 760 miles in 4/3 hours.

Step-by-step explanation:

Given that:

An airplane can cruise at 570 miles per hour.

We have to find the distance travelled by train in 4/3 hours.

Distance = Speed * Time

Distance = [tex]570*\frac{4}{3}[/tex]

Distance = [tex]\frac{2280}{3}[/tex]

Distance = 760 miles

Hence,

The plane can fly 760 miles in 4/3 hours.

5²- 4 +3 • (9 • 2) /2=

4³ - 4(8-7) +12=

6(5 +4) + 4 – 3 •4 =

10²- 4 + 1 • (9 • 2) /2 =

32 -5 + 8 / 2 • 5 =

3² • (1+4) + 4 – 3 • 4 =

9² • (1+4) + 7 – 3 • 4 =

3³ - (2+4) + 5 – 3 • 3 =

(2 + 5) – 3 + 4 • 2 + 1³ =

I NEED HELP!!!! I DONT GET THISSSS

Answers

Okay number 1
Would be 105

Help within 10min PLZZ❤️❤️

Answers

C is the answer You’re welcome

[Help Quick]. Fill in the table using this function rule

Answers

Answer:

9

15

24

33

Step-by-step explanation:

I hope this right

9, 15, 24, 33 with 9 being the top question and 33 being at the bottom(:

HELP ASAP I NEED THE HWLP KAHALANSLABSHSNSKSBAJAM

Answers

Answer:

3,2 im pretty because it's only asking g for the line the the whole triangle i believe

If Bill works on Saturdays, he earns $9 per hour (h), plus a $10 bonus for working on the weekend. He wrote a Function, f(h) = 9h + 10, to help calculate how much he would earn working different numbers of hours next Saturday. How much will Bill earn for 5 hours and 12 hours?

Answers

Answer:

[See Below]

Step-by-step explanation:

For 5 hours: f(5)

f(5) = 9(5) + 10

f(5) = 45 + 10

f(5) = 55

Bill would work earn $55 if he worked for 5 hours.

For 12 hours: f(12)

f(12) = 9(12) + 10

f(12) = 108 + 10

f(12) = 118

Bill would work earn $118 if he worked for 12 hours.

Hope this helps.

It takes 6 cups of mix to make 2 gallons of lemonade if x represents the number of cups of mix and y represents the gallons of lemonade. What is the slope of the line that represents this relationship?
A:6
B:1/3
C:3
D:1/6

Answers

The answers is B
B:1/3
C:3
Because to figure it out u have to simplify or divide it in half until you find the answer you’re looking for.
So 6cups divided by 2 gallons = 3

Jada and Noah wanted to find the total volume of a cube and a rectangular prism. They know that the prisms volume is 20 cubic units, and they know that the cube has side lengths of 10 units. Jada says the total volume is 27,000 cubic units. Noah says it is 1,020 cubic units. Do you agree with either of them?

Answers

Answer:

Noah answer is the correct answer

Step-by-step explanation:

The solution to the above question is given as:

Total Volume = Volume of the prism + Volume of the cube

Volume of the prism = 20 cubic units

Volume of a cube = (Side length)³

= 10³ = 1000 cubic units

Hence: The total volume =

20 cubic units + 1000 cubic units

= 1,020 cubic units

Therefore, I agree with Noah's answer.

Solve the equation 2x+3/3 - 3x/2=-4
Fast please

Answers

Answer:

x = 6

Step-by-step explanation:

Assuming the equation is

[tex]\frac{2x+3}{3}[/tex] - [tex]\frac{3x}{2}[/tex] = - 4

Multiply through by 6 ( the LCM of 3 and 2 ) to clear the fractions

2(2x + 3) - 9x = - 24

4x + 6 - 9x = - 24

- 5x + 6 = - 24 ( subtract 6 from both sides )

- 5x = - 30 ( divide both sides by - 5 )

x = 6

If x = -2, which inequality is true?

Answer
F
2x + 6 6

H
-5 + 3x > 1

J
3 – x < 10

Answers

Answer:

J

Step-by-step explanation:

If I remember correctly then its J

Answer:

Definitely J.

Step-by-step explanation:

plug in -2 into the where the x is.

so the equation is 3 - -2<10

it becomes 3 +2<10 because the minus and negative signs cancel each other out, making the equation true.

Write an equation with the following : m = -4 b 10

Answers

Answer:

Step-by-step explanation: Let's solve for b.

m=(−4b)(10)

Step 1: Flip the equation.

−40b=m

Step 2: Divide both sides by -40.

−40b

−40

=

m

−40

b=

−1

40

m

Answer:

b=

−1

40

m

Please help answer correctly !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!

Answers

I believe that the answer is 8 but I’m not 100%

⚠️⚠️ Ok I need some help here lol ⚠️⚠️

This is the only one and it’s honestly confusing

Answers

(4,6) :)
As it goes over the X axis, you pretty much just mirror it, over that axis.

Answer:

the answer is (4,6)

Step-by-step explanation:

Somebody please help me

Answers

Answer:

A). Scale factor = [tex]\frac{1}{4}[/tex]

B). Length of the unknown side = 2.75 feet

Step-by-step explanation:

Part A

Since, the large rectangle was scaled by a scale factor 'k' to form the smaller rectangle,

Scale factor = [tex]\frac{\text{Side length of the image}}{\text{Side length of the preimage}}[/tex]

                    = [tex]\frac{\text{Side length of the smaller rectangle}}{\text{Side length of the larger rectangle}}[/tex]

                    = [tex]\frac{4}{16}[/tex]

                    = [tex]\frac{1}{4}[/tex]

Part B

Scale factor = [tex]\frac{\text{Side length of the smaller rectangle}}{\text{Side length of the larger rectangle}}[/tex]

[tex]\frac{1}{4}=\frac{\text{Side length of the smaller rectangle}}{11}[/tex]

Therefore, side length of the unknown side = [tex]\frac{11}{4}[/tex] = 2.75 feet

A baker sold 35% of the cakes she baked, if she baked 80 cakes, how many cakes did she sell?

Answers

Answer:

28

Step-by-step explanation:

find 35% off 80 cakes

35% * 80

Converting percent to decimal:

35%/100 = 0.35

0.35 * 80

28

Therefore the baker sold 28 cakes out of the 80 cakes she baked. Hope this helps!

I think 35% of 80 is 28.

Step-by-step explanation:

....

Figure ABDC is a parallelogram find the information below
Please help thank you

Answers

9514 1404 393

Answer:

DC = 16∠DCB = 120°EB = 10.2∠ADC = 60°∠ABE = 17°

Step-by-step explanation:

The figure is a parallelogram, so ...

  AB ≅ DC = 16

Opposite angles are congruent, so ...

  ∠DAB ≅ ∠DCB = 120°

The diagonals cross at their midpoints, so ...

  ED ≅ EB = 10.2

Adjacent angles in a parallelogram are supplementary, so ...

  180° -∠DAC = 180° -120° = ∠ADC = 60°

The sum of angles in ∆ABD is 180°, so ...

  180° -120° -43° = ∠ABE = 17°

a particular tree is 18 m tall : a model of it was built with a. scale of 4 cm : 3m how tall is the model.

Answers

Answer:

24 cm

Step-by-step explanation:

We can set up a ratio of 18 m / x cm = 3 m / 4 cm because we know that it's a scale.

Cross multiplying, we get 3x = 72. Divide both sides by 3 and we have x = 24 cm.

We can also consider it by just dividing 18 m by 3 m to find the scale factor, which is 6. We then multiply the 4 cm by 6 to get 24 cm as well.

8( -4 - 9h) I REALLY REALLY REALLY NEED HELP PLEASE HELP

Answers

Answer:

-32 - 72h ...............

Answer: -32 - 72h

Step-by-step explanation:

so, i am not sure if this is 100% correct, but it should be if i read the problem correctly.

first, i multiplied the parentheses by 8.

-8 x 4 - 8 x 9h

then, i multiplied and calculated it.

-32 - 72h

13. The sum of the measures of angle Mand angle Ris 90°.
• The measure of angle Mis (5 x + 10).
• The measure of angle Ris 55°.
What is the value of x?

Answers

Answer:

x=5

Step-by-step explanation:

If the sum of the measures of angle M and R is 90 degrees, and you know that angle R is 55 degrees, subtract angle R from the total angle. Then, solve for M

90 - 55 = 35

5x + 10 = 35

5x = 25

x = 5

I need help I need help pleaseee

Answers

Answer:

f(-10) = -1/2

f(0) = -3

Step-by-step explanation:

Here, given the equation for f(x) we want to get the value of f(x) for each value of x supplied

We proceed as follows

f(-10) = 6/-10-2 = 6/-12 = -1/2

f(0) = 6/(0-2) = 6/-2 = -3

I need help I will give brainiest​

Answers

Answer:

question 5: 38 students total get a ride to school

question 6: 51 total girls were surveyed

Step-by-step explanation:

Answer:

walk

girls:22

boys:13

total:38

ride

girls:29

boys:9

total:38

total

girls:16

boys:25

SOPHOMORE GEOMETRY NEED HELP ASAP WILL MARK BRAINLY !!!

Answers

Answer:

(6x-5)+(4x-2)=43

10x-7=43

5

Step-by-step explanation:

Peaches are being sold for $2 per pound.The customer created a model to represent the total cost of peaches bought. If x represents the number of pounds of peaches bought and y represents the total cost of the peaches, which best describes the values of x and y?

The values of both x and y can be any real number.
The values of both x and y will be real numbers greater than or equal to 0.
The value of x and y will always be zero
The value of x can be any real number greater than or equal to 0, but the value of y must be an integer greater than or equal to 0.

Answers

Answer:

B - The values of both x and y will be real numbers greater than or equal to 0.

The answer choice that best describes the values of x and y is B - The values of both x and y will be real numbers greater than or equal to 0.

Calculations and Parameters:

Given that peaches are being sold for $2 per lb.

If we define x as the number of pounds that you buy, and y as the cost of these peaches, we can write the function:

y = $2*x

Therefore, the best description of the values of x and y is found in option B. The value of x can be any real number greater than or equal to 0, but the value of y must be an integer greater than or equal to 0.

Read more about equations here:

https://brainly.com/question/17939759

#SPJ9

Which pair of angles in the figure below are vertical angles

Answers

Answer:

There isn't an attachment to see what your talking about.

Step-by-step explanation:

Solve the equation for all values of x by completing the square.
x^2 + 4x = 32

Answers

Answer:

x^2+4x-32=0

(mid-term breaking---4 x 8=32)

x^2+8x-4x-32=0

x(x+8)-4(x+8)

x+8=0 or x-4=0

So x=+4 or x=-8

Step-by-step explanation:

The quadrilateral TOMA on a coordinate plane has the following characteristics.
TA can be represented by the equation y = 4x where −1 ≤ x ≤ 0.
OM can be represented by the equation y = 4x − 16 where 3 ≤ x ≤ 5.
Describe the quadrilateral.

Answers

Answer:

trapezoid

Step-by-step explanation:

y = 4x     slope = 4

y' = 4x -16   slope = 4

TA // OM

TA: -1 ≤ x ≤ 0   (limited value)

OM: 3 ≤ x ≤ 5

TA and OM limited in different range, their length is not equal

The shape is a trapezoid

5/8+(-3/5)+(-5/8)+5/3 what is the answer

Answers

Answer:

16/15

Step-by-step explanation:

I hope this is helpfull

Help due asap
Show workings!

Answers

Answer:

BQ = 16

QE = 8

Step-by-step explanation:

Centroid of a triangle divides the median in the ratio 2 : 1

Here, let BQ = 2x and QE = x

BQ + QE = BE

2x + x = 24

3x = 24

x = 24/3

x = 8

2x = 2*8 = 16

BQ = 16

QE = 8

At a state fair, each person pays $8 for admission plus $2 for each ride. While at the fair, Elizabeth goes on 6 rides. Which expression can be used to find the total amount Elizabeth spends?

Answers

Answer:

The expression is given as:

Total amount = 8 + 2x

Total amount = $20

Step-by-step explanation:

Let the number of rides Elizabeth goes on be represented by x

The expression used to find the total amount =

$8 + $2 × x

= 8 +2x

Elizabeth goes on 6 rides

Total amount =

8 + 2 × 6

= 8 + 12

= $20

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