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WINSTONCH [101]
3 years ago
15

4. Using the numbers 3, 2, and 4, which of these problems would have a solution of 4? (1 point)

Mathematics
1 answer:
Andru [333]3 years ago
8 0
The answer is = (3-2)x4 = (3-2)=1, 1x4=4
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a triceatops has to children. one is 3 times older than the other. Together, their age is 50 months how old are they?
Charra [1.4K]
To solve this problem, create two equations with x and y. The pieces of information that we know are that the first child is 3 times older than the second child. Therefore if we assign child #1 the variable of x and child #2 the variable of y, we could get the following equation: 

3x = y 

Now, we also know that together their ages equal 50 months. Therefore:

x + y = 50 (months) 

So, using these two equations you can use either substitution or elimination to find the values of x and y. You would first need to rearrange the first equation to 3x - y = 0 (just moving the y to the other side). 

Then, you could add the equations together as followed: 

3x - y = 0 
x  + y = 50 
___________
4x = 50 
x   = 12.5

And then fill that value in to one of the equations to find y.

3x = y 
3(12.5) = y 
y = 37.5

So, one child is 12.5 months old and the other is 37.5 months old!
5 0
3 years ago
Darren is trying to improve his typing speed. On his first practice assignment, he types 198 words in 6 minutes. On his second a
nataly862011 [7]
No he actually got slower. if you divide 198\6 it equals 33 if you divide 248\8 you get 31
6 0
3 years ago
Read 2 more answers
Solve the equation.<br> 10x + 2 = 32<br> X =<br> Solve for x.
KiRa [710]

Answer:

Step-by-step explanation:

10x = 30

x = 3

7 0
3 years ago
Why is the mechanical advantage of using a single pulley always 1? Assume there’s no friction. A. The input force is in a differ
Luba_88 [7]

Answer:

  D. The input force is equal to the output force

Step-by-step explanation:

A pulley changes the direction of the applied force, but does not change its magnitude. The mechanical advantage is the ratio of output force to input force, so must be 1 when the force magnitude does not change.

8 0
3 years ago
Q#1 please help t o resolve
Veseljchak [2.6K]

Answer: option. y=-1.33x; 2.67

Solution:

If y varies directly with x, the relation between y and x is:

y=kx

where k is a constant of proporcionality.

We know y=8 when x=-6. Replacing these values in the equation above:

8=k(-6)

8=-6k

Solving for k: Dividing both sides of the equation by -6:

8/(-6)=-6k/(-6)

-1.33=k

k=-1.33

Then the relation between y and x is:

y=kx→y=-1.33x

What is the value of y when x=-2?

Replacing x by -2 in the formula:

y=-1.33x→y=-1.33(-2)→y=2.66

3 0
3 years ago
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