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rewona [7]
2 years ago
12

Which expression is equivalent to -2(-7h -

Mathematics
1 answer:
disa [49]2 years ago
3 0

Answer:

a. 20h + 8

Step-by-step explanation:

-2(-7h-4) + 6h = 14h + 8 + 6h = 20h + 8

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Two student clubs were selling t-shirts and school notebooks to raise money for an upcoming school event. In the first few minut
mixas84 [53]

Using a system of equations, it is found that the cost of a t-shirt is of $3 and the cost of a notebook is of $5.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

The variables are given as follows:

  • Variable x: Cost of a t-shirt.
  • Variable y: Cost of a notebook.

Considering the costs of the purchases of Clubs A and B, the matrices give the equations as follows:

  • 3x + 2y = 19.
  • x + y = 8 -> y = (8 - x).

Hence, replacing the second equation into the first:

3x + 2(8 - x) = 19

x = 3.

y = 8 - x = 8 - 3 = 5.

The cost of a t-shirt is of $3 and the cost of a notebook is of $5.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

7 0
2 years ago
If one quart is the same amount as 2 pints, how many are in 8 quearts?
Verizon [17]

Answer

16 pints

Step-by-step explanation:

its basically 8x2

6 0
3 years ago
What is two mixed numbers that have the sum of 3
Juli2301 [7.4K]
Mixed numbers are a mix of a whole number and a fraction
a easy one is
1 and 1/4+1 and 3/4
1 and 1/2 +1 and 1/2
1 and 9/10 and 1 and 1/10
etc
6 0
3 years ago
Does the table below represent a proportional<br> relationship? Show your work to prove
dolphi86 [110]

Answer:

the table does represent a propor. rela. since y=12x

you can multiply the x values by 12 and that y value will be just that, and in this case, all of them are multiplied by 12.

7 0
3 years ago
The solution set for an inequality is graphed on this number line which numbers below belong to the solution set of the inequali
Rudiy27

Answer:

B, C E and F

Step-by-step explanation:

The inequality is x > -30

the numbers belonging to the solution are all on the heavy line.

Note -30 is not included because of the clear circle on -30

also -44 is not on the heavy line.


7 0
3 years ago
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