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MAVERICK [17]
3 years ago
14

HELP PLZ, im doing a quiz and i need answers!

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
6 0

Answer:

x= 38 degrees

Step-by-step explanation:

angle 2 and angle 3 is a straight line which is 180 degrees.

So,

4x + 28 = 180

4x = 180 -28

4x = 152

x= 152/4

x=38

KonstantinChe [14]3 years ago
4 0

Answer:

38°

Step-by-step explanation:

3 and 2 would have to equal 180 in total, so

if 3 is 28 then 4x=180-28=152

4x=152

152/4 is equal to 38,

So x=38

To check: 38*4=152 ; 152+28=180

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Please help immediately
EleoNora [17]

Answer:

.90(85.00) would give the same result

Step-by-step explanation:

Rhonda is using the total cost of the item ($85.00) multiplied by the discount (10%) to find the total discount:  85 x 0.10 = 8.50.  Once Rhonda subtracts the discount ($8.50) from the total:  $85 - $8.50 = $76.50.  The other way to look at the problem, is that Rhonda is only paying for 90% of the total cost of the items, instead of 100% since she is receiving the 10% discount.  So, she would get the same final total by multiplying the cost of the items ($85.00) by 90%, or 0.90.  

4 0
3 years ago
Javier's parents set an amount of money aside when he was born. They earned 4.5% simple interest on that money each year. When J
solmaris [256]

Answer:

Javier's parents set aside $1500 when he was born

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

In this question, we have that:

E = 1012.50, t = 15, I = 0.045

We have to find P. So

E = P*I*t

1012.50 = P*15*0.045

P = \frac{1012.50}{15*0.045}

P = 1500

Javier's parents set aside $1500 when he was born

6 0
2 years ago
There are two unknowns you are trying to find, and you cannot express one in terms of the other. Describe how you could use alge
serious [3.7K]

Answer:

When you solve systems with two variables and therefore two equations, the ... of any variable is 1, which means you can easily solve for it in terms of the other ... In the substitution method, you use one equation to solve for one variable and ... Look for a variable with a coefficient of 1 … that's how you'll know where to begin.

Step-by-step explanation:

4 0
3 years ago
A customer would like a wall constructed that is 4 feet high. If the bricklayer wants to use all of the 1,820 bricks that he has
yan [13]

Answer: 7,280

Step-by-step explanation:

If we take the wall that is feet high and use 1,820 bricks we multiply to get the answer of 7,280. ;) Hope this helps

3 0
2 years ago
Which is the first step in solving
sammy [17]

Answer:

X-4=4

Solution :

X=4+4

X=8

:)

4 0
2 years ago
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