Evaluate 7y - 3y for y=3

Answers

Answer 1

7 . 3 - 3 . 3

= 21 - 9

= 12

Just substitute you y = 3 into the equation

Answer 2

Answer:

The correct answer is 12.

Step-by-step explanation:

To solve this problem, we must plug in 3 for each occurrence of y in the expression because we are given that y = 3.  In this case, we will get the following:

7y - 3y

7(3) - 3(3)

To evaluate, we must simplify this expression.  Due to the order of operations, we should compute the multiplication first.  7*3 = 21 and 3*3=9, so we can plug in these values into our expression.

21 - 9

Now, we can perform the subtraction.

21-9=12

Therefore, the correct answer is 12.

Hope this helps!


Related Questions

Which expression is equal to 5 6 (6 is an exponent)

6x5
36x6x6x6
25x5x5x5
125x125

Answers

Answer:

125 x 125

Step-by-step explanation:

I got it correct on my i ready pls trust.

Five more than the product of a number and three is negative twenty-five.

Answers

The number is -10.

Explanation:

3x + 5 = -25

3x = -30

x = -10

easy question just need to be sure

Answers

Answer: 46

Step-by-step explanation:

Answer:

72m²

Step-by-step explanation:

yeh that's pretty easy actually

HELP ME ASAP YOU GET 10 POINTS

Answers

Answer:

domain 12

range 24

brainliest?

domain is 12 range is 24

A school librarian has enough money to order 8 paperback books at $155 each. If the librarian decided instead to
order books with hard covers at $188 each, how many books can the librarian buy?

Answers

hi

money he has  :   155 *8  =     800 + 440  =  1240

SO  1240 / 188 ≈ 6.59

so answer  is  6  as you cannot buy half books...

Answer: 6 hard cover books

Step-by-step explanation:

$155 x 8 =1,240

$188 x 6 = 1,128 which is as close as you can get without going over

A line has a slope of -3/4 and passes through the point (-5, 4). Which is the equation of the line?

Answers

Answer: A

Step-by-step explanation:

y-4 = -3/4(x+5)

y = -3/4x+1/4

Answer: the equation is y= 3/4 times + 1/4 is your answer

Which expression is a difference of cubes?
9w33 - y12
18p15-q21
36a22-b16
64c15 - d27

Answers

Answer:

D. 64c15 - d27

Step-by-step explanation:

A. 9w33 - y12

No. 9 is not a perfect cube

B. 18p15-q21

No. 18 is not a perfect cube

C. 36a22-b16

No. 36 is not a perfect cube and 16 is not divisible by 3

D. 64c15 - d27

Yes. (4c^5)^3 - (d^9)^3

Answer:

Answer:

D. 64c15 - d27

Step-by-step explanation:

A. 9w33 - y12

No. 9 is not a perfect cube

B. 18p15-q21

No. 18 is not a perfect cube

C. 36a22-b16

No. 36 is not a perfect cube and 16 is not divisible by 3

D. 64c15 - d27

Yes. (4c^5)^3 - (d^9)^3

Step-by-step explanation:

It rained all day on Mother's Day and the temperature dropped fourteen and seven tenth degrees. The next day the rain stopped and the temperature rose ten and nine tenths degrees. If the temperature at the beginning of Mother's Day was sixty five and eight tenths degrees, what was the temperature at the end of the day after Mother's Day?
PLEASE ANSWER< I WILL GIVE YOU BRAINLIEST

Answers

Answer:

62 Degrees

Step-by-step explanation:

65 8/10 - 14 7/10 = 51 1/10

51 1/10 + 10 9/10 = 62

hurry plz yeyeyeyeyeyye

Answers

Answer:

$250

Step-by-step explanation:

your car gets 25 miles per hour and you want to go on a 400 mile road trip right now gas costs 2.59 per gallon how much would the gas for you road trip cost??

Answers

Answer:

40.96

Step-by-step explanation:

25       400

2.56       ?

400*2.56

=1024

1024/25

=40.96

are the adjacent angles in a parallelogram congruent always, sometimes, or never

Answers

Answer:

always

Step-by-step explanation:

if something parallel then it never touch each other and are opposite of each other

Alyssa used a scale in which 1 inch represents 100 feet. If the actual landmark has a height of 508 feet, find the height of Alyssa's model in inches.

Answers

Answer:

5.08 inches

Step-by-step explanation:

Alyssa used a scale in which 1 inch represents 100 feet. If the actual landmark has a height of 508 feet, find the height of Alyssa's model in inches.

The scale =

1 inch = 100 feet

100 feet = 1 inch

508 feet = x inches

Cross Multiply

100 × x = 508 × 1

x = 508 × 1/100

x = 5.08 inches

The height of the model is 5.08 inches

Bryce grows a sunflower that contains 1,354 sunflower seeds. Six people share the harvested seeds. If they share the seeds equally, how many seeds will be left over?

Answers

Answer: 4 seeds will left over.

Step-by-step explanation:

Total sunflower seeds = 1354

Number of people shared sunflower  seeds equally = 6

By division operation,

Number of seeds each people will get = (Total sunflower  seeds) ÷ (Number of people shared seeds equally)

[tex]= (1354) \div (6)[/tex]

[tex]=225\dfrac{4}{6}[/tex]

Hence, each people will get 256 sunflower seeds and 4 seeds will left.

What's the answer to this question because im having trouble

Answers

Answer:

The Answer Is A The First One On The Very Left 5/12 - 3/12

PLEASE HELP!! WILL MARK BRAINLIEST :))

Answers

Answer:

It would be the third one (x, y) for all real numbers

A bag contains 36 calculators. This number is 75% of the number of calculators that can fit in the bag. How many calculators can the bag hold when filled?

Answers

Answer:

48

Step-by-step explanation:

Let X represent the total number of the calculator, then we can form an equation from the explanation of the question as

X × 75/100=36

75x=36×100

Making X the subject of the formula we have,

X=3600/75

X=48

Hence, 48 calculators can the bag hold when filled

When completing an online shopping transaction, a typical shopper takes 5 seconds to select each product and another 28 seconds to complete the check-out process. If it takes 48 seconds to complete a transaction, how many products are being purchased? If it takes 80 seconds to complete a transaction, how many products are being purchased?​If it takes 80 seconds to complete a transaction, how many products are being purchased? If it takes 80 seconds to complete a transaction, how many products are being purchased?​ If it takes 80 seconds to complete a transaction, how many products are being purchased? If it takes 48 seconds to complete a transaction, how many products are being purchased?​

Answers

Answer:

a) 4 products

b) 10 products

Step-by-step explanation:

When completing an online shopping transaction, a typical shopper takes 5 seconds to select each product and another 28 seconds to complete the check-out process.

For 1 product, the total time =

5 seconds + 28 seconds = 33 second.

We can derive an equation

Total time of transaction = 5x + 28

Where x is the number of products you are selecting

a) If it takes 48 seconds to complete a transaction, how many products are being purchased?

Total time = 5x + 28

48s = 5x + 28

5x = 48 - 28

5x = 20

x = 20/5

x = 4 items

b) If it takes 80 seconds to complete a transaction, how many products are being purchased?

Total time = 5x + 28

80s = 5x + 28

5x = 80 - 28

5x = 52

x = 52/5

x = 10 items

In whole number = 10 items

HELP WITH MY GEOMETRY REVIEW

Answers

1. Corresponding angles
2. Supplementary angles
3. Same side interior angles
4. Alternate interior angles

hii, this geometry, please help haha!!

Answers

Answer:

its 6

Step-by-step explanation:

(16x+5) = 1

50 - 45 = 5

5+1=6

Answer:

x=5

Step-by-step explanation:

since both triangles are equivalent then both given angles add up to 95. So to find x you would see what value makes it equal 85 when it's plugged in to equal 180 in total.

16(5)+5=85+95=180

WILL GIVE BRAINLIEST.
Find the equation of the line. Use the exact numbers.

Equation: y = __ x + __

Answers

Answer:

y=1/2x+4

Step-by-step explanation:

Answer:

y=2x+4

Step-by-step explanation:

A 7 inch candle burns at a rate of 2 inches per hour. Which equation represents the
relationship between y, the height of the candle, and x, the number of hours the
candle burns?

Answers

Answer:

b

Step-by-step explanation:

Find the area of the triangle

Answers

Answer:

The area of the triangle WYX  = [tex]\frac{35}{2}[/tex] = 17[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The area of the triangle WYX  is [tex]\frac{1}{2}[/tex]*b*h

We need to find base (b) and height (h)

By counting from the drawing, the base which is horizontal is 7 and the height which is vertical is 5

The area of the triangle WYX  is [tex]\frac{1}{2}[/tex]*b*h

The area of the triangle WYX  = [tex]\frac{1}{2}[/tex]*7*5 = [tex]\frac{35}{2}[/tex] = 17[tex]\frac{1}{2}[/tex]

Plot the line for the equation on the graph.





y−2=−2(x+4)

Answers

Answer:

(-3,0) and (0,-6)

Step-by-step explanation:

I need help asap thxss​

Answers

Answer:

Step-by-step explanation:

Kyle has 2 3/4 pounds of flour. He wants to divide the flour into 3 equal-sized
bags. How many pounds of flour are in each bag?

Answers

about .92 lbs or 11/12 lbs in each bag

Answer:

11/12

Step-by-step explanation:

All you do is make 2 3/4 a improper fraction and then divided the improper fraction by 3 to get 11/12

Hope it helps :D

私はこれをGoogle翻訳を使って書き留めています。地面からうんちをすくい取ります。今やれ!

Answers

Answer:

yessssss

Step-by-step explanation:

thanks ;p;p;

$97.55 business breakfast, 18% tip

Answers

Answer:

115.109 or 115.11 dollars

Step-by-step explanation:

multiply 97.55 by 1.18 to get the amount.

Answer:

$17.60

Step-by-step explanation:

Have an excellent day everyone!


Please help!! I need the answer and the explanation on how to do this

Answers

Answer:

the first one

Step-by-step explanation:

y=3x+2

2x+y=-4

becomes

3x+2=y

2x+4=-y

add them

5x+6=0

5x=-6

x=-5/6

take x and replace it for one equation

y=-8/5

Hi. Please I need help with these questions.
It's urgent . 50pts.
No jokes. This time
Answer No 10and 11

Answers

next question

11)

[tex] {x}^{2} + (k - 1)x - k = 0[/tex]

[tex](x - 1)(x + k) = 0 \\ x = 1 \\ x = - k[/tex]

they are equal so both are one

then k = -1

be careful the answer of q 10 is in the pictures


HELPPP
Timmy and Sam ran in a marathon. Timmy ran at a constant speed of 5 miles per hour. Sam ran at a
constant speed of 4 miles per hour and had a head start of 2 miles. Determine where Timmy and Sam will
meet.

Answers

Answer:

they will meet 10 miles out after 2 hours

Step-by-step explanation:

10/2 my dude have a good day
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