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HACTEHA [7]
3 years ago
8

Emily is 41 years old. Colin is 10 years older than Emily. Dan is 15 years younger than Emily. What is the total of their combin

ed ages?
Mathematics
2 answers:
Oliga [24]3 years ago
8 0
118 is the answer add them all together would’ve of gave you the answer
jok3333 [9.3K]3 years ago
3 0

Answer:

118

Step-by-step explanation:

E = 41

Colin is 10 years older than Emily.     C = E + 10 = 41 + 10 = 51, C = 51

Dan is 15 years younger than Emily.   D = E - 15 = 41 - 15 = 26, D = 26

E + C + D = 41 + 51 + 26 =  118

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If u subtract 17 from my number and multiply the difference by -7, the result is -35.What is my number
Kryger [21]

Let x = your number.

(x - 17) * -7 = -35. Divide each side by -7.

(x - 17) = 5. Add 17 to each side.

x = 22.

Your number is 22

5 0
3 years ago
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Find the vertex of the graph of f(x) = x2 + 4x - 5.
Fofino [41]
You can solve this in two ways.

1. Graphical. Plot the graph for x between -5 and 1 (see attachement).
The vertex of the graph is the peak of the curve, which has the coordinates x=-2, y=-9.

2. Analytical. Calculate the derivative of the function f(x)
\frac{df}{dx}=2x+4
Solve the equation:
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Replace x=-2 in the f(x) function and you'll get the value of y:
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So the answer is
<span>B. (-2, -9)</span>

7 0
3 years ago
Solve the equation 6(3x + 4) = 4x -4.<br> 10<br> 7<br> 0x = -2<br> Ox=2
Tanzania [10]
-2 is the answer! Remove the parentheses then move the terms. After that, collect the terms and calculate. Lastly, divide both sides.
5 0
3 years ago
A scientist conducted an experiment. Due to chemical reaction, the temperature of a compound rose 1/10 degree every 1/4 hour for
klio [65]

Answer:

The rate is \frac{2}{5} degree per hour.

Step-by-step explanation:

Given : A scientist conducted an experiment. Due to chemical reaction, the temperature of a compound rose \frac{1}{10} degree every \frac{1}{4} hour for a limited time.

To find : What was the rate, in degrees per hour that the temperature of the compound rose ?

Solution :

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To get  the rate, in degrees per hour,

In every 1 hour the temperature of a compound rose is

r=\dfrac{\frac{1}{10}}{\frac{1}{4}} degree

r=\dfrac{4}{10} degree/hr

r=\dfrac{2}{5} degree/hr

Therefore, the rate is \frac{2}{5} degree per hour.

5 0
3 years ago
Easy points. see image below
tatuchka [14]

Answer:

 6

Given expression:

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Simplify following inside parenthesis

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If following is |-a| then |-a| = a

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Evaluate following

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4 0
2 years ago
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