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3 years ago

The mean of the following numbers is 15. 14,10,18,,21,15,14

Mathematics

1 answer:

Leona [35]3 years ago

6 0

Answer:

= 15.285714285714

Step-by-step explanation:

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Peyton is building a model tower using plastic bricks. The height of the tower is proportional to how many layers of bricks he u

Alex777 [14]

75 layers

15 layers/24 cm = x layers/120cm
(120*15)/24 = x
75 layers = x

3 0

3 years ago

One number is one more than another. Their sum is nine. Find both numbers.

STatiana [176]

Answer:

4 and 5

Step-by-step explanation:

Let's make an equation to solve. Let's call "one number" x. Another number is 1 more than x, so now we have x + 1. x plus x + 1 is equal to 9... and this gives us our equation:

x + (x + 1) = 9

We can now simplify by adding like terms together:

2x + 1 = 9

Now, let's take away 1 from both sides:

2x = 8

We can finally divide both sides by 2 to isolate x:

x = 4

One of our numbers is 4. Our other number is one more than 4, and 4 + 1 = 5. So our numbers are 4 and 5.

Hopefully this was helpful! If you need more help, let me know.

5 0

3 years ago

Question 1

melomori [17]

Answer: C

Step-by-step explanation:l

4 0

4 years ago

Lin has a pet German shepherd that weighs 38 when measured in one unit and 84 when measured in a different unit. which measureme

harkovskaia [24]

Given :

Lin has a pet German shepherd that weighs 38 when measured in one unit and 84 when measured in a different unit.

To Find :

Which measurement is in pounds, and which is in kilograms.

Solution :

We know, mass in kg and pounds are related as :

$m_P = 2.2m_{kg}$

Putting, $m_{kg}=38$ and $m_P=84$ , we get :

LHS = 84

RHS = 2.2 × 38 = 83.6 ≈ 84

Since, LHS = RHS .

Therefore, 38 units is Kg and 84 units in Pounds.

Hence, this is the required solution.

7 0

3 years ago

What does the value of x have to be so that

Natali5045456 [20]

The value of x is 5

Solution:

The slope of a line is given by formula:

$Slope = \frac{ y_2-y_1}{x_2-x_1}$

From given,

$slope = \frac{11}4}\\\\(x_1, y_1) = (x, -7)\\\\(x_2, y_2) = (-1, 4)$

Substituting the values we get,

$\frac{11}{4} = \frac{4+7}{-1-x}\\\\-11 - 11x = 11 \times 4\\\\-11-11x = 44\\\\11x = -11-44\\\\11x = 55\\\\x = 5$

Thus the value of x is 5

5 0

3 years ago

The mean of the following numbers is 15. 14,10,18,,21,15,14​

The mean of the following numbers is 15. 14,10,18,,21,15,14