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4vir4ik [10]
3 years ago
7

The data set below gives the prices (in dollars) of cordless phones at an electronics store. 35, 50, 60, 60, 75, 65, 80

Mathematics
1 answer:
tangare [24]3 years ago
5 0

Answer: ?

Step-by-step explanation:

?

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Norman bought 5/6 pounds of cookies. He ate 3/5 cookies. What was the weight of the cookies he ate
schepotkina [342]

Answer:

Half a pound.

Step-by-step explanation:

To find the number of pounds he ate, multiply the fractions.

\frac{5}{6}*\frac{3}{5} = \frac{15}{30}=\frac{1}{2}

He ate 1/2 a pound.

8 0
3 years ago
If 2 inches on a map represents 100 miles, how much does 3.5 inches
Sidana [21]

Answer:

175 miles

Step-by-step explanation:

3.5 has 2 miles in it so it has 100 then it has another 1 to make It 3 and half of 2 is ahh it's hard to explain but there's the anwser

4 0
3 years ago
Subtract 2x 2 - 6x - 4<br> from 4x 2 - 4x + 3.
mafiozo [28]
X subtracted from y means y-x
(4x^2-4x+3)-(2x^2-6x-4)
4x^2-4x+3-2x^2+6x+4
4x^2-2x^2-4x+6x+3+4=
2x^2+2x+7
6 0
3 years ago
which of these shows the result of using the first equation to substitute for y in the second equation, then combining like term
Furkat [3]

Answer:

C. \Rightarrow \bold{8x = 16}

Step-by-step explanation:

Given the two equations:

y=2x ........ (1)\\ 2x+3y=16.......(2)

To find:

The correct option when value of y is substituted to 2nd equation using the 1st equation.

Solution:

First of all, let us learn about the substitution method.

Substitution method is the method to provide solutions to two variables when we have two equations and two variables.

In substitution method, we find the value of one variable in terms of the other variable and put this value in the other equation.

Now, the other equation becomes only single variable and then we solve for the variable's value.

Here, we have two equations and value of one varible is:

y=2x

Let us put value of y in 2nd equation:

2x+3y=16\\\Rightarrow 2x + 3(2x) = 16\\\Rightarrow 2x + 6x = 16\\\Rightarrow \bold{8x=16}

So, the correct answer is option C. \Rightarrow \bold{8x = 16}

7 0
3 years ago
If you invested $100 at an interest rate of 5% per year compounded quarterly, how much will the investment be worth at the end o
mojhsa [17]

Answer: the investment would be

$110.45

Step-by-step explanation:

Initial amount deposited into the account is $100 This means that the principal is

P = 100

It was compounded quarterly. This means that it was compounded 4 times in a year. So

n = 4

The rate at which the principal was compounded is 5%. So

r = 5/100 = 0.05

It was compounded for 2 years. So

t = 2

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount in the account at the end of t years. Therefore

A = 100 (1+0.05/4)^4×2

A = 100 (1.0125)^8

A = $110.45

5 0
3 years ago
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