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2 years ago

−6+{14+2[60−9(1+3)]}

Mathematics

2 answers:

Mamont248 [21]2 years ago

5 0

Simplify:

−6 + 14 + 2 (60−9(1+3))

Therefore, the answer is 56.

tangare [24]2 years ago

5 0

Answer:

The answer is 56. See attachment.

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The price of a 7-minute phone call is $2.45. What is the price of a 13-minute phone call?

Umnica [9.8K]

If 7 minutes is $2.45, then 13 minutes is $4.55 cuz 1 minute is 0.35 cents

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2 years ago

Read 2 more answers

What is the first step to solve the following system of equations using substitution?

Akimi4 [234]

Answer:

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

Thus, option A) is true.

The solution to the system of equations be:

$x = 4, y = 5$

Step-by-step explanation:

It is important to remember that when we solve the system of equations, the first step we need to do is to solve one of the equations for one of the variables.

Given the system of equations

$x - y = -1$

$2x - y = 3$

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

$x-y=-1$

Add y to both sides

$x-y+y=-1+y$

$x=-1+y$

Thus, option A) is true.

<u>NOW LET US SOLVE THE REMAINING PORTION</u>

$\mathrm{Subsititute\:}x=-1+y$ to solve for y

$\begin{bmatrix}2\left(-1+y\right)-y=3\end{bmatrix}$

$-2+y=3$

$y=5$

For x = -1 + y

substitute y = 5

$x=-1+5$

$x=4$

Thus, the solution to the system of equations be:

$x = 4, y = 5$

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2 years ago

What is the answer? pls help

worty [1.4K]

Answer:

117

Hope this helped :)

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2 years ago

Hey can someone help:)?

Zolol [24]

I think it’s the first one

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2 years ago

Given sample set A= {1,2,3,4,5} how many items are in the complement of set B if set B= all numbers greater than 2? (30 pts)

neonofarm [45]

Alright, so first we need to establish two things.

First, the compliment of a set is like the extreme opposite; everything that is not in set B will be in the complement.

Second, we need to find out what B is.

Okay, so B is everything that is greater than 2, that's given. That includes 3, 4, and 5. B = {3, 4, 5}. There are three items in this set.

The numbers that aren't included are 1 and 2. The complement of B, let's call this C I guess, is C = {1, 2}. There are 2 items in this set.

The answer, I believe, is <em>two</em>. Hope this helps!

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2 years ago