MATHEMATICS MIDDLE SCHOOL

f - 354 = 1221
A. f=877
B. f=1,565
C. f=867
D. f=1,575

Answers

Answer 1
Answer:

f-354=1221           add 354 to both sides

f+354-354=1221+354\n\n\boxed{f=1,575}\to\boxed{D.}

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#8 Dylan, Mike and Jeremy had $171. Mike had twice as much money as Dylan. Jeremy had three times as much money as Mike. How much money did Jeremy have?#9 we skipped this one


 
#10. Maddy had twice as many stamps as Simon. After Maddy sold 60 stamps, Sinom had twice as many stamps as Maddy. How many more stamps did Maddy have than Simon in the beginning?

Answers

Answer:

8.  $114

10.  60 stamps

Step-by-step explanation:

8.

Let Dylan have d, Mike have m, and Jeremy have j

3 of them have 171, so we can write:

1. d + m + j = 171

Mike has twice as Dylan, so we can write:

2. m = 2d

Jeremy had three times as Mike, so:

3. j = 3m

We can write equation 3 as m = j/3

Also, if we put this into equation 2, we have:

j/3=2d

d=j/6

Now we have d and m in terms of j. We put it into equation 1 and solve for j:

(j)/(6) + (j)/(3) + j = 171\n(3j+6j+18j)/(18)=171\n(27j)/(18)=171\n27j=18*171\n27j=3078\nj=(3078)/(27)\nj=114

Jaime has $114

10.

amount of stamps Maddy has is m and amount Simon has is s

Maddy had twice as many stamps as Simon:

m = 2s

Also

After Maddy sold 60 stamps, Sinom had twice as many stamps as Maddy:

s+60=2(m-60)

We put the first equation in the second and solve for s:

s+60=2(m-60)

s+60=2(2s-60)

s+60=4s-120

180=3s

s=60

THus, m = 2(60) = 120

So maddy had 120 - 60 = 60 more stamps than Simon

Which expression is equivalent to 16^3?
6^7
2^11
2^12
2^64

Answers

Answer:

2¹²

Step-by-step explanation:

= 16³

We'll divide 16 into the product of its prime factors

= ( 2×2×2×2)³

There are four 2s so it becomes 2⁴

= (2⁴)³

= 2⁴ˣ³

= 2¹²

Answer:

2^12

Step-by-step explanation:

16^3 = (2^4)^3 = 2^(4x3) = 2^12

Hope this helps!

a restaurant charge $12 for a spaghetti dinner special. during 1 hour 16 people ordered the spaghetti dinner special. What is the total amout that the restaurant charge for the spaghetti dinner special?

Answers

You do 12 times 16 because it is 12 dollars for a spaghetti dinner, and 16 people comes and orders it in an hour, so you do 12 times 16 which equals 192. So 192 dollars is the total. If you can, please mark mine the brainliest!!! I would appreciate it if you did!!!

Hope it works
You would do $12*16 to see what they have to charge for the dinner

Tyler makes $10 per hour at his job.The function f(x)=10x gives the amount of money Tyler makes after x hours.Graph this function and give its domain and range.

Answers

You will have the points: (0,0) and (1,10) and (2,20) and (3,30) etc etc

Plot at least 2 of these points. Then draw a line through them.

Each point has an x,y pair such that the y value is ten times the x value

For example, if x = 2, then

y = 10*x = 10*2 = 20

so that shows how (2,20) is one of the points.

-------------------

The domain would be the set of positive whole numbers assuming Tyler can only work a whole number of hours. If partial time values are accepted, then the domain would be the set of positive real numbers. Negative x values are not allowed as Tyler can't work negative 3 hours for instance.

In a similar fashion, the range is the set {0, 10, 20, 30, 40, ...} incrementing by multiples of 10 if x is the set of positive whole numbers. If x is the set of positive real numbers, then y can be 0 or larger which sets up the range of y being the set of positive real numbers as well.

which of these story problems describes the sum 19 + (-12)? check all that apply. show your work to justify your answer.

Answers

which of these story problems describes the sum 19 + (-12)? check all that apply. show your work to justify your answer.

1

2. is the right answer

3

Answer:

FREE PNTS!

Step-by-step explanation:

Karen is making 14 different kinds of greeting cards.She is making 12 of each Kind.How many greeting cards is she making?

Answers

She will be making 168 greeting cards.

What is multiplication?

In math, to multiply means to add equal groups. When we multiply, the number of things in the group increases.

Given is that Karen is making 14 different kinds of greeting cards. She is making 12 of each Kind.

The total number of greeting cards she is making are -

14 x 12

168

Therefore, she will be making 168 greeting cards.

To solve more questions on multiplication, visit the link below -

brainly.com/question/23536361

#SPJ3
14*12 is 168 so that's your answer
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