Mathematics Middle School

five more than the product of two and a number, decreased by seven;

evaluate when a = 8

A 2-column table with 7 rows. Column 1 is labeled Key Words with entries five, more than, product, two, a number, decreased by, seven. Column 2 is labeled Replace with entries 5, +, times, 2, a, minus, 7.

Write and evaluate the expression. Then, complete the statements.

First, write the expression
.

Second,
8 in for the variable, a.

Third,
by using
✔ order of operations
.

The answer is
.

Answers

Answer 1

Answer:

First, write the expression

✔ 5 + 2a – 7

.

Second,

✔ substitute

8 in for the variable, a.

Third,

✔ simplify

by using

✔ order of operations

The answer is

✔ 14

Answer 2
5+ (2a-7)
= 5 + (2•8-7)
= 5 + (16-7)
= 5+9
= 14

Related Questions

Dan has 4 over 5 cup of ice cream. How many 1 over 8-cup servings are in 4 over 5 cup of ice cream?

Answers

6 and 1 over 2

i did lots of math

Item 11
Write and solve an equation to answer the question.

91 is 130% of what number w?

Answers

Answer:

The answer is 70.

Hope this helps :)

-ilovejiminssi ♡

70, im pretty sure if my calculations are correct

James types 90 words in 2 minutes. At this rate, how many words can James type in 15 minutes?

Answers

it would probably be 675 cause i did it and got that

Answer:

675 words

Step-by-step explanation:

If James can types 90 words in 2 minutes, we can assume that he can type 45 words per minute. If we multiply 45 words per minute by 15 minutes, we get 675.

Pls help Im stuck on the porblem.

Answers

Answer:

4860  is about 4900

Step-by-step explanation:

It grew by 6% but fell by 4% so were looking for 2% of 243,000. So 243,000x0.02= 4860 You want to roughd to the nearserst hundred people so it's 4900.

4860 and can round up to 4900

Paula is running a race that is 10 kilometers long. After running 8
minutes, she passes the 3.75 kilometer marker. How many more
kilometers does Paula need to run to cross the finish line?

Answers

Answer:

10-3.75= 6.25 more kilometers

Step-by-step explanation:

The number of kilometers that Paola needs to run to cross the finish line will be 6.25 kilometers.

What is the length?

It is the measure of distance between the two points and is known as length. The length is measured in meters generally.

It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.

Paula is running a race that is 10 kilometers long. After running for 8 minutes, she passes the 3.75 kilometers marker.

Then the number of kilometers that Paola needs to run to cross the finish line will be given by the difference of 10 km and 3.75 km.

⇒ 10 - 3.75

⇒ 6.25 kilometers

Thus, the number of kilometers that Paola needs to run to cross the finish line will be 6.25 kilometers.

More about the distance link is given below.

https://brainly.com/question/26711747

#SPJ2

Solve and explination

Answers

Answer:

160ft

Step-by-step explanation:

To find the area of something, you need to do base x height. Which is,

8 x 20 = 160

Please give me brainlist!

8 x 20 = 160

base x height
i hope this helped !

Heather deposits $7000 into an account that pays simple interest at a rate of 2% per year. How much interest will she be paid in the first 3 years?

Answers

Answer:

year after 3 year(s).

The formula we'll use for this is the simple interest formula, or:

Where:

P is the principal amount, $7000.00.

r is the interest rate, 2% per year, or in decimal form, 2/100=0.02.

t is the time involved, 3....year(s) time periods.

So, t is 3....year time periods.

To find the simple interest, we multiply 7000 × 0.02 × 3 to get that:

The interest is: $420.00

Usually now, the interest is added onto the principal to figure some new amount after 3 year(s),

or 7000.00 + 420.00 = 7420.00. For example:

If you borrowed the $7000.00, you would now owe $7420.00

If you loaned someone $7000.00, you would now be due $7420.00

If owned something, like a $7000.00 bond, it would be worth $7420.00 now.

420 dollars in 3 years

Please help this is worth 15 points!

Answers

It should be Non proportional

One of the triangles pictured is a rotation of triangle ABC and one of them is a reflection.

1. Identify the center of rotation, and label the rotated image PQR.
2. Identify the line of reflection, and label the reflected image XYZ.

Answers

1) the green triangle would be labeled PQR starting at the bottom angle and going counter clockwise
2) the red triangle should be labeled XYZ starting at the top angle and going clockwise

can someone please do this :// I need B done on Question 9 but I'm so mad because no one is giving me a correct fkin answer

Answers

Should be 4 for B because 8-4 would equal 4

Answer:

9.

4= length A

3= width B

B. The volume is 72

Step-by-step explanation:

I got 72 by making the whole shape into 2 different shapes and finding the volume of those first. I am not sure if this is correct but I hope it is and I hope this helps! :)

Simplify the expression:
–7c2–c2+–5c2–2c2+8c2–9c2

Answers

Answer:

the answer is why is math so hard

Step-by-step explanation:

Duh

i would start by grouping them into sections because they’re all like terms.
(-7c2-c2) = -8c2
(-5c2-2c2)= -7c2
(8c2-9c2) =-c2
then add them all together.
-8c2-7c2-c2
since they’re all negative you can add them together but don’t forget the negative.
8+7=15
15+1 = 16
add the negative back in to get -16c2

Which of the following relations represent functions? Select all that apply.

Answers

Answer:

Step-by-step explanation:

hello

The soccer team has 16 1/2 boxes of wraping paper left to sell. If each of the 12 players sells the same amount, how man boxes should each player sell?

Answers

Each player should sell 1.3 boxes

Find the area of this figure

Answers

Base X height(parallelogram) + Length X breadth(rectange)

It would be more easy to explain if the figure was labelled.
The figure is not labeled correctly

1) A train travels 25 miles in 1/5 of an hour whats the trains speed in miles per hour?
2) The height of a stack of books, h inches, is directly proportional to the number of books, n. The height of a stack of 10 books is 12 inches. A-find the constant of proportionality. B-write and equation relating to h and n. C-find the height of a stack of 24 books.
3) An 8-ounce serving of milk provides 30% of the daily value of calcium. How much milk would you have to drink to get 100% of your daily value of calcium
PLEASE HELP I NEED THESE ANSWERS FASTT

Answers

Answer:

Hope this helps! ↓

Step-by-step explanation:

1.) 90 Km/h. Example: What is the speed of a cheetah that travels 112.0 meters in 4.0 seconds? ... Speed of the cheetah in miles per hour 28m 1 mile 3600 s 63 miles

2.) y=kx is the direct variation formula. Inserting the information and variables from this scenario we get h = kn.

12 = k*(10) First solve for 'k', the constant of proportionality by dividing by 10.

1.2 = k

Next write the equation using this k and the h & n.

h = 1.2*n

Now we want to find the height if we have 24 books so plug 24 in for n.

h = 1.2 * 24

h = 28.8 inches

3.) 10/3

It’s 3 step by step because follow me to get free point

Which expression has a value of 15 when p = 12?

StartFraction 18 Over p EndFraction
3p
18 minus p
p + 3

Answers

Answer:

18 minus p

Step-by-step explanation:

if u subtract 18-p u will get p=12

uqiwoeugyfhbjckdisuygehbfjkdehgfvjdenfhu heelppppp pelele;lkelekleke pleaseeeee pleseese ok i can spell just hellpppp

Answers

C is your answer


Have a great day :)

Answer:

it would be:

C.

hope that helps u! :)

Step-by-step explanation:

Please help fill in the blanks, better with explanation but optional

Answers

The scale factor is 3 as the lengths in the bigger triangle when divided by 3 gives the lengths in the smaller triangle

Answer:

The scale factor is 3

Step-by-step explanation:

The scale factor is 3 as the lengths in the bigger triangle when divided by 3 gives the lengths in the smaller triangle

PLEASE HELP AND SHOW WORK

Answers

Answer:

9%

Step-by-step explanation:

[tex]119.27/1.31 = |P-100|[/tex]

P is percent

[tex]119.27/1.31 = |91 - 100|[/tex]

[tex]|91-100|=9[/tex]

9% is your answer.

Could somebody PLEASE help ASAP! I will mark brainliest!
2x + 11 = 39
Please solve for x

Answers

X=39 .. i thunk thats it !

pls help it is due today

Answers

Answer:

21 thousand and 51 thousand

Step-by-step explanation:

28683 point 3 to the 86

Write an equation that looks like x^2 = # such that it will have no real
solutions. Justify why your equation will not have any real solutions.

Answers

3^2 = 9

Because 3 times 3 is 9 LOL

If a radius of a sphere is divided by 2, will the surface area be divided by 2?

Answers

If r is the radius of a sphere its surface area = 4(pi)r^2.

If the radius is doubled then its surface area = 4(pi)(2r)^2 = 4*4(pi)r^2.

So the surface area becomes 4-fold or the increase in surface area is 300%.

Explain how to write and evaluate an algebraic expression.

one more than the product of a number and seven, decreased by five; evaluate when n = 6
(PS, I'm giving brainliest and its worth 30 points)

Answers

Answer:

38

Step-by-step explanation:

Which year saw the warmest temperatures, on average?

A. 2006
B. 2007
C. they are the same
D. you cannot tell from the graph

Answers

Answer:

A. 2006

Step-by-step explanation:

The blue line is 2006 and goes the highest on the graph, up to 100 degrees.

A. 2006
The graph you’ve provided shows the purple line at 100* during 2006.

Extended Answer

IT IS ALGEBRA!!!! HELP ME PLZ

15. Evan is sewing trim on a pair of shorts. He needs four equal length pieces of trim to put two stripes down each side of the shorts. The teacher gives him a piece of black trim that is 185 cm long. He measures and cuts 4 equal lengths. He ends up with a small piece of leftover trim that is 13 cm long. How long is each piece of trim?

a) Write an equation to represent this situation.

Answers

Answer:

185- 13= 172= 43

Step-by-step explanation:

172 divided by 4= 43

43 hope this helps!!!!!! hope this is the right answer for you

Match the equivalent expressions.

Answers

Answer:

1: 2x^4

2: 5x+4

3: 12x+6

4: 4+x

Step-by-step explanation:

I used a calculator and paper

the answers that she gave u are correct

Becky uses 10 strawberries and 4 oranges to make 8 servings of fruit salad.
Drag oranges and strawberries into the box to show how many Becky needs to make 12 servings.

plzzzz help thx

Answers

Answer:

what do you need to know... bc i can't drag and drop anything on brainly

Step-by-step explanation:

Answer:

6 oranges needed per 12 servings

15 strawberries per 12 servings

Step-by-step explanation:

Hope it helps!

Cody and Jordan were selling Flamin' Hot Cheetos to raise money for the Tornados. Cody sold 5 bags of Cheetos for every 3 bags Jordan sold. Together they sold 160 bags total. How many bags did each boy sell?

Answers

They sold 160 and for each 5 bags sold by one 3 bags are sold by another 3+5=8.

160/8=20.

Now Since Cody Sold 5 Bags for every 3 bags for Jordan

5x20=100

3x20=60

Cody Sold 100 and Jordan Sold 60

Answer:

cody sold 100 & jordan sold 60

Okay it might be simple but can yall help and give me a real answer plz UwU
I'll make you brilintest UwU

Answers

Answer:

6 cubic cm

Step-by-step explanation:

3 · 3 · 2 = 18

18 · 1/3 = 6

did you already answer the question or do I need to do it because im not trying to answer for no reason
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