MATHEMATICS HIGH SCHOOL

Suppose Adriana spends $ 73.00 dollars on T-shirts and pants. A T-shirt costs $5.50 and pants cost $25.50. How can you represent this situation with an equation?

Answers

Answer 1

Answer:

Answer:

73.00=5.50x+25.50y

Step-by-step explanation:

Answer 2

Answer:

Answer:

25.50x + 5.50y = 73.00

Step-by-step explanation:

Pick a variable for x and y (x is pants and y is T-shirt)

Since she buys pants and T-shirts you add the two values

Since she spent $73 you make it equal to 73

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Which two numbers add up to 6 and multiply to 21
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An item regularly priced at $80 is on sale for 20% off. There is a 3% sales tax. What is the sale price before sales tax?

I don't understand number 25. Please I need an explanation.

Answers

First plot points J, K, and L randomly on a plane. Then, draw a line connecting J and K. Next, put a point on the line, JK named M. Now draw a ray from M to L connected the two points with an arrow at one end to indicate a ray.

Consider the linear expression 4x - 11The coefficient in this expression is ....... and the constant term is......

Answers

Answer:

4 will be the coefficient

while X will be the variable

and the constant term is 11.

X/3 = 10 question 24 options: 10 3 30 7

Answers

x ÷ 3 = 10

what you want to do is isolate for x by multiplying both sides by 3

10 × 3 = 30

So x = 30

$x/3=10$

$x=10*3$

$x=30$

What is 2% of $230,000

Answers

if you set it up to cross multiply you do 230,000*2=460,000

then you divide by 100 and get your answer of 4600$

2% of 230000
we make the 2% to deckmal
.02 * 230000
=4600

$800 is deposited in an account that pays 9% compounded semi-annually. Find the balance after 4 years.

Answers

The formula for compound interest is the following:

A=P(1+r/n)^nt
A=accumulated amount (what we're looking for)
P=Principal amount (initial amount). $800 in this case
r=rate. 0.09 in this case which we get from converting 9% to decimal by dividing by a 100.
n=number of times interest is compounded. In this case semi-annually which means 2
t=time. In this case 4 years
Let's calculate:
A=800(1+0.09/2)^(2*4)
A=800(1+0.045)^8
A=800(1.045)^8
A=800(1.42210061284)
A=1137.68049027
Let's round to the hundredth place (to represent cents) since the amount represents money.
Answer=The balance after 4 years will be $1,137.68

Answer:

Principal = $ 800

Time = 4 years

Rate of Interest = 9% compounded Semi Annually

$=(9\pr)/(2)$