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Vitek1552 [10]
3 years ago
5

Lakisha had 10 dollar bills and 1 bills in her wallet. She used seven bills to buy a pair of shoes for 43 dollars. How many of e

ach type of did she spend?
Mathematics
1 answer:
solmaris [256]3 years ago
6 0

Answer: she spent three 1 dollar bills and and four 10 dollar bill.

Step-by-step explanation:

Let x represent the number of 1 dollar bills that she used.

Let y represent the number of 10 dollar bill that she used.

She used seven bills to buy a pair of shoes. This means that

x + y = 7

The amount that she spent on the pair of shoes is $43. This means that

x + 10y = 43 - - - - - - - - - - 1

Substituting x = 7 - y into equation 1, it becomes

7 - y + 10y = 43

- y + 10y = 43 - 7

9y = 36

y = 36/9 = 4

x = 7 - y = 7 - 4

x = 3

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Mr. and mrs. lorenzo want to buy a home valued at $213,500. if they have 18% of this amount saved for a down payment, how much h
Vesnalui [34]

Option d is the correct answer. $38,430.00 is the amount saved for a down payment given that Mr. and Mrs. Lorenzo want to buy a home valued at $213,500 and they have 18% of this amount saved for the down payment. This can be obtained by using percentage formula.

<h3>How much have they saved?</h3>

The percentage of a number can be obtained using percentage formula,

If P% of X is Y then it can be denoted using the formula of percentage as,

⇒ P% of X = Y

⇒ P% × X = Y   (where P% is P/100)

Here in the question it is given that,

  • Mr. and Mrs. Lorenzo want to buy a home valued at $213,500
  • They have 18% of this amount saved for a down payment

We have to find the amount they saved for the down payment.

  • Given that the total amount = $213,500
  • Percentage they are saving = 18%

The amount they saved for the down payment,

18% of the total amount = 18% of $213,500

Using the percentage formula we get,

18% of $213,500 = 18% × $213,500  

18% of $213,500 = 18/100 × $213,500

18% of $213,500 = $ 38,430.00

Hence Option d is the correct answer. $38,430.00 is the amount saved for a down payment given that Mr. and Mrs. Lorenzo want to buy a home valued at $213,500 and they have 18% of this amount saved for the down payment.

Learn more about percentages here:

brainly.com/question/14366896

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3 0
2 years ago
There are 9 computers and 72 students. what is the unit rate of students to computers?
stepan [7]
8 Is the unit rate. For 9/27
7 0
3 years ago
Tyler brother works in a shoe store and the store brought a pair of shoes for $50 and sold it for $80 what percentage was the ma
Free_Kalibri [48]

Answer:

$60.

Step-by-step explanation:

Cost price=  $50

Selling price = $80

Percentage markup = Gain/Cost price x   100%

=30/50x100

=$60.

7 0
3 years ago
Help I don’t get it at all
Naily [24]
The answer to your question is n is equal to 70
5 0
3 years ago
Read 2 more answers
Someone please help me
Mars2501 [29]

Answer:

x=-1,-2

Step-by-step explanation:

Multiply the given equation with (x+1) on both sides. We'll get,

x+2/x=-3

or,x^2+2=-3x

or,x^2+3x+2=0

or,x^2+2x+x+2=0

or,x(x+2)+1(x+2)=0

or,(x+2)(x+1)=0

or,x=-2,-1

4 0
3 years ago
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