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poizon [28]
3 years ago
10

You have a total of 42 math and science problems for homework you have 10 more math problems and science problems how many probl

ems do you have in each subject use a system of linear equations to justify your answer
Mathematics
2 answers:
Kipish [7]3 years ago
3 0
<span>X= math problems y= science problems x +y =42 x= y+10 Substitute: (y+10) + y =42 Combine y: 2y +10=42 Solve for y: y= 16 There are 16 science questions and 26 math questions</span>
Kryger [21]3 years ago
3 0
Math problems→x
Science problems→y
x+y=42
x=10+y

10+y+y=42⇒2y=32⇒y=32/2⇒y=16
x=10+y

y=16
x=10+16⇒x=26
I have 26 math problems and 16 science problems.

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What is the equation of the line passing through the point (4, 5) that is parallel to the line with the equation
Reptile [31]

Answer:

y=2x-3

Step-by-step explanation:

1. find the slope

6x-3y=21

-3y=-6x+21 divide both sides by -3

y=2x-7

slope is 2

2.y-5=2(x-4)

  y-5=2x-8

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7 0
3 years ago
A first number is nine less than a second. The sum of the numbers is 45. Find the numbers.
oee [108]

Answer:

The first number is <u>18</u> and the second number is <u>27</u>.

Step-by-step explanation:

Given:

A first number is nine less than a second.

The sum of the numbers is 45.

Now, to find the numbers.

Let the second number be x.

And the first number be x-9.

The sum of the both numbers is 45.

According to question:

(x-9)+x=45.

⇒ x-9+x=45.

⇒ 2x-9=45.

<em>Adding both sides by 9 we get:</em>

⇒ 2x=54.

<em>Dividing both sides by 2 we get:</em>

⇒ x=27.

<u><em>The second number = 27</em></u>.

Now, to get the first number we put the value of x:

x-9

=27-9

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Therefore, the first number is 18 and the second number is 27.

4 0
3 years ago
Determine the salary per pay period. Law Clerk: $48,950; weekly. Round to the nearest Hundredth.
Viktor [21]
49,000 is the nearest round to the hundredth to 48,950
4 0
2 years ago
A clock has a diameter of 16 inches. Which measurement is closest to the area of the clock in square inches? 804.25 in2 50.27 in
meriva

Answer:

200.96 in2

Step-by-step explanation:

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n = 3.14

r = radius

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

diameter = 2r

radius = 16 inches / 2 = 8 in

Area = 3.14 x 8² =  200.96 in²

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2 years ago
Which expression is equivalent to the given polynomial expression?
PilotLPTM [1.2K]

Answer:

-4 a^2 - 3 b

Step-by-step explanation:

8 0
3 years ago
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