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3 years ago

Solve: -10(x - 1) = 10 - 10x A) no solution B) x = -1 C) x = 0 D) infinitely many solutions

1 answer:

7 0

The answer is D because:

-10 (x - 1) = 10 - 10x
-10x + 10 = 10 - 10x
-10x + 10x = 10 - 10
0x = 0

fil in x = 1 --> 0 * 1 = 0 : 0 = 0
fil in x = 2 --> 0 * 2 = 0 : 0 = 0
etc.

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Samantha wants to buy a new computer monitor for $125 dollars. Her weekly allowance is $14. If she

Sati [7]

It would be 25 weeks for her to buy a computer monitor

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3 years ago

Milly wrote the equation 6= -2x-6 What is the value of x ?

Sphinxa [80]

Answer:

x = -6

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

6 = -2x - 6

Step 2: Solve for x

[Addition Property of Equality] Add 6 on both sides: 12 = -2x
[Division Property of Equality] Divide -2 on both sides: -6 = x
Rewrite: x = -6

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3 years ago

pls help me do if u don't know how to do pls don't answer or else u will be reported I need it under 25min thank u

Vesna [10]

Answer:

see explanation

Step-by-step explanation:

given that V is directly proportional to u and inversely proportional to f , then the equation relating them is

V = $\frac{ku}{f}$ ← k is the constant of proportion

(a)

to find k use the condition when u = 1 and f = 3 , V = $\frac{1}{6}$ , then

$\frac{1}{6}$ = $\frac{k}{3}$ ( cross- multiply )

6k = 3 ( divide both sides by 6 )

k = $\frac{3}{6}$ = $\frac{1}{2}$

V = $\frac{u}{2f}$ ← equation of proportion

(b)

when f = 4 and V = 1 $\frac{1}{4}$ = $\frac{5}{4}$ , then

$\frac{5}{4}$ = $\frac{u}{2(4)}$ = $\frac{u}{8}$ ( cross- multiply )

4u = 40 ( divide both sides by 4 )

u = 10

5 0

2 years ago

A 2-quart carton of soy milk costs $6.08. What is the price per cup?

fomenos

Answer:

$0.76 per cup

Step-by-step explanation:

Step 1: Find the unit price for a quart

To find the unit price, divide the amount by the price

6.08 / 2

$3.04 per quart

Step 2: Find the unit price for a cup

1 quart = 4 cups

3.04 quarts / 4 cups

$0.76 per cup

Answer: $0.76 per cup

6 0

3 years ago

vitfil [10]

Answer:

45-(-15)

430-(-180)

11,560-(-185)

Step-by-step explanation:

just add the two numbers together for diffrence.

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3 years ago