2 years ago

Select the choice that translates the following verbal phrase correctly to algebra: y less than 21

Mathematics

2 answers:

Reil [10]2 years ago

7 0

21-y because they are asking for the answer to be y (a number) less than 21

8_murik_8 [283]2 years ago

4 0

Y less than 21 = 21 - y

Remember, "less than" indicates a subtraction with the terms in inverted order.

Hope I helped!

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Help me with this if anyone can! Please and thank you

Valentin [98]

ANSWER

$y = 3x - 3$

EXPLANATION

Let

$y = mx + c$

be the equation.

We can choose any two ordered pairs to determine the equation of the relation.

$(6,15) \: and \: (8,21)$

We find m using the formula;

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

$m = \frac{21 - 15}{8 - 6} = \frac{6}{2} = 3$

The equation becomes

$y = 3x + c$

When x=6, y=15.

This implies that,

$15 = 3(6) + c$

$15= 18 + c$

$15 - 18= c$

$c = -3$

The equation of the relation is therefore,

$y = 3x -3$

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3 years ago

In a wildlife park, there were 18 gray wolves. After three years, there were 27 gray wolves. What is the percent gain?

natulia [17]

27-18=9 (difference between)
9/18=0.5 (9 as a percentage of original as a decimal)
0.5x100=50 (as a percentage)

50% increase

4 0

2 years ago

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2/3 as a real number

BaLLatris [955]

Answer:

Yes

Step-by-step explanation:

I don't know the question but 2/3 is a real number.

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3 years ago

Write the word sentence as an inequality.<br> One plus a number y is no more than -13.

kolbaska11 [484]

Answer:

1+y $\leq$ -13

Step-by-step explanation:

The problem states that one plus y is No greater than -13.

This means that is less than or equal to -13.

It also gives you one plus y, or 1+y

Put everything together to get 1+y $\leq$ -13

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Answer:

27.7% of third year girls study biology

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