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3 years ago

Okay i know the answer but how to write it as an expression??? please help

Mathematics

1 answer:

givi [52]3 years ago

7 0

Answer:

to write an expression, we often have to interpret a written phrase. For example, the phrase “ 6 added to some number” can be written as the expression x + 6, where the variable x represents the unknown number.

Step-by-step explanation:

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The Augello family is driving from Columbus to St. Louis at a constant rate of 65 miles per hour. The distance between the two c

Anestetic [448]

Answer:

$y = -65x + 420$

Step-by-step explanation:

Slope-intercept form equation is given as $y = mx + b$

Where,

y = distance remaining

x = hours driven

m = slope/constant rate. In this case, the value of m would be -65. This means the distance will reduce at a constant rate of 65 miles per hour.

b = y-intercept, which is the initial value or the distance between the cities = 420

Plug in the values into the slope-intercept equation, to represent the distance y in miles remaining after driving x hours. You would have:

$y = -65x + 420$

7 0

3 years ago

A beetle is down in the ground and he digs down to find an ant. A beetle starts at 2 inches below ground level. The beetle digs

luda_lava [24]

Answer:

1 - (1/3 x 2) = 4 inches (The equation may not be exactly correct but the answer of 4 inches is.)

Step-by-step explanation:

The beetle has 4 inches, 2 of which it already had before hand.

4 - 2 = 2

1/3 distance that the ant is would be 2 inches, so then you would find the number that 2 is one third of.

1/3 = 2/6

1 - 2/6 = 4/6

The ant is 4 inches below ground level.

4 0

3 years ago

(x–3)^2(x+3)^2<br> HELP MEE

Vsevolod [243]

(x^2-6x+9)(x^2+6x+9) and expand it

8 0

3 years ago

(12a^(2) - 3)/(2)*(2a + 1)^(-2)*((6)/((2a + 1)))^(-1)

Elena L [17]

Answer:

$\frac{144a^{4}+144a^{3} - 36 - 12a} {2a+1}\\$

Step-by-step explanation:

$\frac{(12a^2-3)}{2*(2a+1)^{-2}}*\frac{6}{(2a+1)^{-1} }\\ = \frac{(12a^2-3)}{2 * \frac{1}{(2a+1)^{2} }} * \frac{6}{\frac{1}{2a+1} }\\ =\frac{(12a^2-3)(2a+1)^{2}}{2} * \frac{6}{2a+1}\\=\frac{(12a^2-3)(2a+1)^{2}}{2} * \frac{6}{2a+1}$

$= \frac{(12a^2-3)(4a^{2} + 1 + 2 (2a)(1))}{2} * \frac{6}{2a+1}\\= \frac{(12a^2-3)(4a^{2} + 1 + 4a)}{2} * \frac{6}{2a+1}\\= \frac{(12a^2-3)(4a^{2} + 1 + 4a)}{1} * \frac{3}{2a+1}\\= \frac{3(12a^2-3)(4a^{2} + 1 + 4a)} {2a+1}\\\\= \frac{3(12a^2(4a^{2} + 1 + 4a) - 3 (4a^{2}+1+4a)} {2a+1}\\= \frac{3(48a^{4}+12a^{2}+48a^{3} - 12a^{2} -12 - 4a)} {2a+1}\\= \frac{144a^{4}+36a^{2}+144a^{3} - 36a^{2} - 36 - 12a)} {2a+1}$

$= \frac{144a^{4}+36a^{2}+144a^{3} - 36a^{2} - 36 - 12a} {2a+1}\\= \frac{144a^{4}+144a^{3} - 36 - 12a} {2a+1}\\$

6 0

4 years ago

Find 50% of 152:<br> Find 25% of 152:<br> Find 75% of 152:

Maslowich

I think:
50% of 152 = 76
25% of 152 = 38
75% of 152 = 114

Sorry if im wrong

6 0

3 years ago

Read 2 more answers