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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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The length of each side of a square is increased by 2 inches. If the perimeter is 20 inches, write an equation to show the origi
Archy [21]
The new length side of the perimeter, we'll call p. The original length, we'll call o. P's equation looks like this:
p = 20 \times  \frac{1}{4}
Since 5 is the length of one side, subtract 2 from 5 to get 3. The equation looks like this:
o =  \frac{20}{4}  - 2
or simply
o = 5 - 2


3 0
3 years ago
Lance has 3 time as many pencils as Nick, and they have 84 pencils together. How many pencils does each of them have?
Rufina [12.5K]

Answer:

21 pencils for Nick and 63 pencils for Lance

Step-by-step explanation:

  • Lance is said to have 3 times the pencils Nick has.
  • Let's keep the number of pencils Nick has as x.
  • If Nick has x pencils that means Lance has 3x pencils.
  • The total number of pencils present is 84.

Now let's make an equation out of the information above:

3x + x = 84

Now solve for x.

3x + x = 84

4x = 84

x = 84/4

x = 21

So Nick has 21 pencils

Now for Lance:

3x

3 * (21) = 63

So Lance has 63 pencils

63 + 21 = 84 pencils

8 0
3 years ago
Maureen plants tulips in a rectangular flower bed that is 2 to the 3rd power feet wide and 2 to the 4th power feet long.
frez [133]
The area would be 128ft^2 because 2^4 is 2x2x2x2 and 2^3 is 2x2x2 and if you multiply them you get 128ft6=^2
8 0
3 years ago
Read 2 more answers
Why is 2x 3/4 less than 2?
Kipish [7]

Answer & Step-by-step explanation:

It is less because 2 times 3/4 is the same as 2/1 times 3/4 which is 6/4 then simplify it and you get 3/2 which then is 1 1/2.

That is why 2 times 3/4 is less than 2.

Hope that helps ;)

7 0
3 years ago
What’s the answer to <br><br> e^(2x-1)=(e^6)^-x
Leni [432]

Hmmmmmmmmmm....


Dunno

5 0
3 years ago
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