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4 years ago

12

Will eight be less or more than 2/4

1 answer:

daser333 [38]4 years ago

5 0

Step-by-step explanation:

8 is more than 2/4 because the answer of 2/4 is 0.5 so 8 is more than 2/4

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Will give brainliest please help asap

ella [17]

What do you need help with?

4 0

3 years ago

Please please help fast , thank you !

Tresset [83]

Answer:

2>x

y>-1

Step-by-step explanation:

assume y=0 when finding x and vice versa

4 0

3 years ago

Solve using the quadratic formula. Approximate answers to the nearest tenth.

-BARSIC- [3]

Answer:

$\displaystyle x=-1, \ 8$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Algebra I</u>

Standard Form: ax² + bx + c = 0
Quadratic Formula: $\displaystyle x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

x² - 7x - 8

↓

<em>a</em> = 1, <em>b </em>= -7, <em>c</em> = -8

<u>Step 2: Solve for </u><em><u>x</u></em>

Substitute in variables [Quadratic Formula]: $\displaystyle x=\frac{7 \pm \sqrt{(-7)^2-4(1)(-8)}}{2(1)}$
[√Radical] Evaluate exponents: $\displaystyle x=\frac{7 \pm \sqrt{49-4(1)(-8)}}{2(1)}$
[√Radical] Multiply: $\displaystyle x=\frac{7 \pm \sqrt{49 + 32}}{2(1)}$
[√Radical] Add: $\displaystyle x=\frac{7 \pm \sqrt{81}}{2(1)}$
[√Radical] Evaluate: $\displaystyle x=\frac{7 \pm 9}{2(1)}$
Multiply: $\displaystyle x=\frac{7 \pm 9}{2}$
Add/Subtract: $\displaystyle x=\frac{-2}{2}, \ \frac{16}{2}$
Divide: $\displaystyle x=-1, \ 8$

5 0

3 years ago

4 is to 6 as 10 is to what

Karo-lina-s [1.5K]

Answer:

x = 15

Step-by-step explanation:

<u>Step 1: Make an expression</u>

<em>4/6 = 10/x</em>

<em />

<u>Step 2: Cross multiply</u>

4/6 = 10/x

<em>4x = 60</em>

<em />

<u>Step 3: Divide both sides by 4</u>

4x / 4 = 60 / 4

<em>x = 15</em>

<em />

Answer: x = 15

7 0

4 years ago

Read 2 more answers

Lilly and Rosie are sisters. The sum of their ages is 19 and the positive difference of their ages is 9. Set up a system of equa

likoan [24]

Answer:

14

Step-by-step explanation:

The sum of their age is 19.

This means that when you add their ages together, it will be 19.

L+R=19

The positive difference of their age is 9.

It tells you that Lily is the older child.

Since the difference is a positive number, that means it would be Lily's age minus Rosie's age since Lily is older.

L-R=9

Now you have 2 equations that can be used to find their ages.

Start with the first equation.

L+R=19.

Solve for L.

Subtract R on both sides.

L=19-R

Now use the substitution method (replacing or "substituting" L with 19-R) for the next equation.

L-R=9

(19-R)-R=9

19-2R=9

-2R=-10

R=5

Rosie's age is 5.

Rosie's age is 5. Now use the first equation to find Lily's age.

L+5=19

L=14.

Lily's age is 14.

7 0

3 years ago