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belka [17]
4 years ago
6

Sams brother is 7 years older than Sam. His mother is 4 less than 3 times sams age. Their combined age is 63. How old isn’t Sam,

his brother, and his mother
Mathematics
1 answer:
statuscvo [17]4 years ago
4 0

The answer is 14. This is because 63=3+x+3x-4. Then You just subtract it and then you get 64=4x. Then you just divide it and then you get x=16.

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A tank that holds up 10 gallons. when its active, a drain empties water from the tank at a constant rate, when Jada first see th
Mamont248 [21]

Answer:

-2/3 gallon/minute

Step-by-step explanation:

In three minutes the water volume has decreased by 2 gallons (7 less 5 is 2).  The unit rate of decrease of the amount of water in the tank is thus:

- 2 gallons

------------------- = -2/3 gallon/minute

 3 minutes

6 0
3 years ago
1. Based on data collected over several sessions, a statistically minded trainer of office typists modeled the linzoom in
ipn [44]

Answer:

Statement D is correct.

Step-by-step explanation:

Solution:

Data Given:

Linear Regression Relationship = Speed = 10.3 + 5.4 (hour)

Linear Regression Relationship = y = mx + c

Here,

m = slope = 5.4

c = 10.3 = y - intercept

The correct Answer is D)

Because:

As, the residual value is positive, it means the typist attained faster speed than the model predicted. As we know, residuals is the result of difference between predicted values of the model and data values. On the contrary, if residual would be negative then we would say that typist speed is slower than the model predicted.

Hence, Statement D is correct.

6 0
3 years ago
How many times greater is one hour then one miuntes
dezoksy [38]


There are 60 minutes in 1 hour

60 minutes -  1 minute = 59 minutes

One hour is 59 minutes greater than 1 minute.

Hope this helps. :)

8 0
3 years ago
Read 2 more answers
How to you solve -4a -8 <= -44 or 6-9a >= -12
dimaraw [331]
<span>The answer to your question is a≥<span><span>9<span> or </span></span>a</span></span>≤<span>2</span>
8 0
3 years ago
What is the value of x in the equation is 4+6x=-3+7x​
Anvisha [2.4K]

Answer:

x=1

Step-by-step explanation:

  1. choose a side to get rid of so since its easier to take 6 away from seven we will do that but remember what you do to one side you have to do to the other
  2. so take away 6x from the left that leaves 0 your equation should look like this 4=-3+7x remember that we have to to it to the right side too
  3. so take 6x away from the 7x on the right side and that leaves 1x so it should look like this 4=-3+1x
  4. then since it's a -3 you will need to add 3 for it ton equal 0 so it will look like this 4=7x
  5. but dont for get to do the same to the other side so add 3 to the 4 on the left so it will look like this 7=7x
  6. then divide by 7 to get x by itself so it will look like this 7=x
  7. but you aren't done yet you still have to divide the left by 7 so it will look like this 1=x

and thats all there is to it hope this helps

5 0
3 years ago
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