Problem: Tina bought some nail polish and lip gloss at the store. The nail polish cost $4.50 per bottle and lip gloss cost $7 per tube. Tina bought 9 items and spent $50.50. How many of each item did she buy?Use this 4-step plan to answer the problem above!

Step 1: Understand. What are the facts? What are you asked to find? Is there any information you will not use?
Step 2: Plan: How will you solve this problem? State which strategy you are choosing to use.
Step 3: Solve. Show your steps. What is the solution?

Step 4: Check: Also include your check. Does your answer make sense?

Answers

Answer 1

Answer: 4.50x + 7x= $50.50
you will use Guess and check as a strategy
4.50(5) +7(4) = 50.50

yes the answer does make sense

Answer 2

Answer: a - number of nail polish bottles
b - number of lip gloss tubes
a+b=9 => b=9-a
4.50*a+7*b=50.50
4.50*a+7*(9-a)=50.50
4.50*a+63-7a=50.50
63-50.50=7a-4.50a
2.50a=12.50
a=12.50/2.50
a=5 nail polish bottles
b=9-a=9-5
b=4 lip gloss tubes

Related Questions

Please answer this correctly I have to finish the sums by today.I want smart people to answer like helping hand people.
In 2000, there were 7689 weekly newspapers in the United States. This s about 94% of the number of weekly newspapers in the United States in 1960. How many weekly newspapers were there in 1960? Round to the nearest whole number.
PLEASE SOMEONE HELP ME I WILL MARK YOU AS BRAINLIEST IF YOU CAN EXPLIAN THE PROCEDURES YOU DID anyways too guys can you please give me an example with finding the population standard deviation for a data set my phone is acting up and since i only have one memory card i can't take a picture of the problem do not leave out any steps
A company logo is a white square inside a red square. The side length of the white square is x+2. The side length of the red square is three times the side length of the white square. What is the area of the red part of the logo? Write your answer in standard form.
A bakery 825 cookies a day. A large box contains 12 cookies. A small box contains 3 cookies. How many small boxes does the bakery fill in a day?

What is the perimeter, P, of a rectangle that has a length of (x + 8) and a width of (x − 1)? Show all work.

Answers

Answer:

4x + 14

Step-by-step explanation:

From the question,

L =(x + 8)

W =(x -1)

Perimeter of a rectangle

= 2(L + B)

P = 2( x+8 + x-1)

Using distributive property

We have

2xx +2x8 + 2xx -2x1

2x + 16 +2x -2

2x + 2x +16 -2

4x + 14

Sophia walked 6 miles in 90 minutes at bear creek park in eluless, Texas. if she continued at this rate , use a ratio table to determine how many miles she could walk in 60 minutes.

Answers

Answer:

4 miles

Step-by-step explanation:

the data we have is:

Miles Minutes

6 ⇒ 90

and the thing we want to know is how many miles she could walk in 60 minutes:

Miles Minutes

6 ⇒ 90

x ⇒ 60

where the x represents the unknown number of miles she will walk in 60 minutes.

we solve this problem using rule of three, for this we multiply cross quantities (6 by 60) and then we must divide by 90:

x = 6*60/90

x = 360/90

x = 4

in 60 minutes she walks 4 miles.

she can walk 4 miles in 60 minutes. 6/105=4 miles
90/1.5=60 minutes

What ratio doesn't belong 4/10 2/5 3/5 6/15

Answers

3/5 does nor belong, as the other three fractions are just different versions of the same fraction :) 4/10 can be simplified into 2/5. If you multiply this fraction by three, 2/5 would become 6/15 Hope this helped!

What is f(3) for the quadratic functionf(x)=2x2 + x – 12?
F -3
G 3
H 6
I. 9

Answers

Answer:

f(3) = 9

Step-by-step explanation:

Wherever you see an x on the right, put a 3 in for that x

f(x) = 2x^2 + x - 12

f(3) = 2*(3)^2 + 3 - 12

f(3) = 2*9 + 3 - 12

f(3) = 18 + 3 - 12

f(3) = 9

Rob has 40 coins,all dimes and quarters worth $3.60.how many quarters does she have?

Answers

Not logical the least you can have with 40 coins only dimes and quarters is $4 (40 dimes)

What does 2/3 + 4/5 equal?

Answers

First, find common denominators.

2/3 → 10/15

4/5 → 12/15

Second, add.

10/15 + 12/15 = 22/15

Third, turn into a mix number if needed.

22/15 = 1 7/15

Best of Luck!

Answer:

6/12

Step-by-step explanation:

2/3+4/5

find the common denominator

3:3,6,9,12

4:4,8,12

so its 12

so add them 2/12+4/12

6/12

Other Questions

if 4 bottles of juice were shared equally among 14 students, what fraction of the juice did each student drink

If the population is 22400000 in 2014 and its expected to increase by 272% find the expected population in 2050

Pls I need help. I just need to answer. Thx

What is 789,626,968,486,998 -1