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larisa86 [58]
3 years ago
14

3. At a bargain store, Tanya bought 3 items that each cost the same amount. Tony bought 4 items that each cost the same amount,

but each was $2.25 less than the items that Tanya bought. Both Tanya and Tony paid the same amount of money. What was the individual cost of each person's items? (a) Write an equation. Let x represent the cost of one of Tanya's items. (b) Solve the equation. Show your work. (c) Check your solution. Show your work. (d) State the solution in complete sentences. Answer:
Mathematics
1 answer:
julia-pushkina [17]3 years ago
5 0

3x = 4(x-2.25)

3x = 4x-9

add 9 to both sides

3x+9 =4x

subtract 3 x from each side

x=9

Tonya's items were $9 each

Tony's items were 9-2.25 = 6.75 each

check:

9*3=27

4 *6.75 = 27

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Alja [10]
He uses 15 gallons. Because 270/6 = 45. Meaning he drives 45 miles per gallon. So 675/45=15. 15 gallons he will need to use to drive 675 miles.
7 0
3 years ago
Penny's garden has alength of 16ft. and the width is 5 ft. with a rectangular fountain in the middle that measures 5 ft by 9 ft.
lilavasa [31]

First we need the whole garden:

16 x 5 = 80

Now we need to fountain:

5 x 9 = 45

Now to find our answer:

80 - 45 = 35

So our answer is B. 35ft²

4 0
3 years ago
(Will give brainliest to correct answer.)
Alex73 [517]

The answer would be 15.

7 0
3 years ago
Read 2 more answers
Ava buys a book for $8.58. she pays with a $10 bill. how much change will she get?
mestny [16]
It's $1.42 have a nice day
8 0
3 years ago
Read 2 more answers
Eddie Hibbs earns a gross income of $42,300 a
Maslowich

Using proportions, it is found that his tax rate is of 28.84%.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

His tax rate is the proportion that the <u>deductions are of the total salary</u>, hence:

12,200/42,300 = 0.2884 = 28.84%.

Hence his tax rate is of 28.84%.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

5 0
2 years ago
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