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My name is Ann [436]
3 years ago
14

Richard and Teo have a combined age of 31. Richard is 4 years older than twice Teo's age. Write a system of equations. How old a

re Richard and Teo?
I need to write an equation for this, please help
Mathematics
1 answer:
sweet [91]3 years ago
4 0

Answer:

richard is 22 and teo is 9

Step-by-step explanation:

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What is the range of the function below in set builder notation? y=|x-3|
Kisachek [45]

Answer:  \{y | \ y \in \mathbb{R}, \ y \ge 0\}

This translates to "y is any real number such that it is 0 or larger".

The reasoning is that the result of any absolute value function is either 0 or positive. In other words, we'll never get a negative result of an absolute value function. This is due to how absolute value represents distance. Negative distance does not make sense.

So if y = |x-3| then y = 0 is the smallest output possible. We could have any positive output we want.

In terms of a graph (see below), the V shape is at the lowest point (3,0). The y coordinate is all we care about in terms of finding the range. So we see the lowest y value is y = 0.

4 0
3 years ago
Erin created a scale drawing for a garden that will be 10 ft by 5 ft. She plans to include a section in the garden for herbs, wh
Elanso [62]

Answer:

The dimensions of the herb garden in the scale drawing are 2.4 in. by 6 in

Step-by-step explanation:

we know that

The dimensions of the garden in the actual are 10 ft by 5 ft

The dimensions of the garden on the scale drawing are 12 in. by 6 in

step 1

Find the scale factor

To find the scale factor divide the corresponding side on the scale drawing by the corresponding side in the actual

so

\frac{12}{10}\ \frac{in}{ft}

simplify

1.2\ \frac{in}{ft}

That means

1.2 inches in the drawing represent 1 foot in the actual

step 2

Find out  the dimensions of the herb garden on the scale drawing

we know that

The dimensions of the herb garden in the actual are 2 ft by 5 ft

Multiply by the scale factor

so

2\ ft=2(1.2)=2.4\ in

5\ ft=5(1.2)=6\ in

therefore

The dimensions of the herb garden in the scale drawing are 2.4 in. by 6 in

5 0
3 years ago
Which of the following shows the least expensive unit price?
Arlecino [84]
It would be the first one because each orange costs $0.34
3 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE DONT SEND ME LINKS TO WEBSITES. ANSWER THE QUESTION HERE THANK YOU.
mote1985 [20]

Answer:

33

Step-by-step explanation:

The two angles add up to 180 degrees because a straight line is 180 degrees

<em>Add both equations and set equal to 180</em>

3m + 138 + 7m +12 = 180

<em>Algebra yeet</em>

<em>Simplify</em>

10m +150 = 180

10m = 30

m = 3

Angle DBC is (7m + 12):

<em>Substitute m = 3</em>

7(3) + 12 = 21 + 12 = 33 degrees

7 0
3 years ago
Translate this phrase into an algebraic expression.
ELEN [110]
Twenty four more than twice Carlos's score would be 24+2c
7 0
3 years ago
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