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3 years ago

Write the following using algebraic notation, using the letter x for any unknown numbers:

Mathematics

1 answer:

Furkat [3]3 years ago

7 0

Answer:

a) The algebraic notation is 4 ( x -3 ) = 4x -3

b) The algebraic notation is 2x +2

Step-by-step explanation:

Explanation:-

Let 'x' be the number

Given 'x' is a number, subtract three

⇒ x - 3 and multiply '4'

The result of algebraic is 4 ( x -3 ) = 4x -3

Let 'x' be a number and add one

⇒ (x+1) and then double

∴ The algebraic notation is

(x+1 ) (2) = 2x +2

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Help please!!! Thank you

dybincka [34]

Answer:

B: 54

Step-by-step explanation:

for the first digit: 1 or 3 (2 choices)

for the second digit: 0, 1, or 3 (3 choices)

for the third digit: 0, 1, or 3 (3 choices)

for the forth digit: 0, 1, or 3 (3 choices)

2×3×3×3=54

4 0

4 years ago

Read 2 more answers

Combine like terms to complete the equivalent expression. 2 1/2 z² + 4 1/2 + 7z - 4 +5z - 1/2 z² = ( _ z² - _z²) + ( 7z + _ z) +

postnew [5]

Step-by-step explanation:

z is 1 and 2 is 2

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3 years ago

Tyrell bought a house for $186,500. He has a 30 year mortgage with a fixed rate of 6.5%. Tyrell's monthly payments

Rashid [163]

Answer:

b. 18,650 should be the correct answer

Step-by-step explanation:

6 0

4 years ago

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slope intercept form of equation of a line that passes through (-3,8) y=-2/3x+6 what is the point slope equation for this line??

nlexa [21]

Answer:

$\large\boxed{y-8=-\dfrac{2}{3}(x+3)}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

The point-slope form of an equation of a line:

$y-y_1=m(x-x_1)$

We have the equation of a line in the slope-intercept form

$y=-\dfrac{2}{3}x+6\Rightarrow m=-\dfrac{2}{3}$

and the point (-3, 8).

Substitute:

$y-8=-\dfrac{2}{3}(x-(-3))\\\\y-8=-\dfrac{2}{3}(x+3)$

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3 years ago

How many quarts of pure pineapple juice should Theo add to a 20% pineapple drink to create 5 quarts of a 50% pineapple juice mix

PIT_PIT [208]

1.875 quarts of pure pineapple juice should Theo add to a 20% pineapple drink.

Explanation

Suppose, $x$ quarts of pure pineapple juice should be added with 20% pineapple drink.

As the amount of the mixture is 5 quarts, so the amount of 20% pineapple drink will be: $(5-x) quarts$

Percentage of juice in the pure pineapple juice is 100% and in the mixture is 50%

So, the equation will be.....

$1.00(x)+0.20(5-x)=0.50(5)\\ \\ 1.00x+1-0.20x=2.50\\ \\ 0.80x=2.50-1\\ \\ 0.80x= 1.50\\ \\ x=\frac{1.50}{0.80}=1.875$

So, 1.875 quarts of pure pineapple juice should Theo add to a 20% pineapple drink.

5 0

3 years ago