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3 years ago

Which expressions are equivalent to -1/2 ?

1 answer:

8 0

It’s A, because it doesn’t matter which part of the fraction has the negative sign, as long as either ONE number is negative, it’s the same. Option b, -1/-2, would make it positive but option A, 1/-2, keeps it negative. So it’s A.

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Mrs. Gargantua thinks she finally may have found

docker41 [41]

Answer:

She should used 4.5 ounces of the 4% and 1.5 ounces of the 20%.

Step-by-step explanation:

x = amount of 4% fuel

6 - x = amount of 20% fuel

0.04x + 0.2(6 - x) = 0.08(6) Multiply both sides by 100 to remove the decimals

4x + 20(6 - x) = 8(6)

4x + 120 - 20x = 48

-16x + 120 = 48

-16x = -72

x = 4.5

She should used 4.5 ounces of the 4% and 1.5 ounces of the 20%.

6 0

3 years ago

Solve for equation4y+4=3x

Basile [38]

Answer:

Step-by-step explanation:

Switch sides:

3x = 4y+4

Divide both sides by 3:

$\frac{3x}{3}=\frac{4y}{3}+\frac{4}{3}$

Simplify to give:

$x=\frac{4y+4}{3}$

5 0

2 years ago

What is the answer to X/4 = 7/8

IgorLugansk [536]

Answer:

$x=\frac{7}{2}$

Step-by-step explanation:

To solve a proportional equation, cross-multiply the numerators and denominators:

$\frac{x}{4}=\frac{7}{8}\\8x=28\\x=\frac{28}{8}\\x=\frac{7}{2}$

7 0

3 years ago

Write the fraction 28 in its simplest form.<br>70

vovangra [49]

Answer: 2/5

Step-by-step explanation: 28/70 ÷ 12/12 = 2/5

6 0

3 years ago

Find / or<br> Find1/8of1/9

Archy [21]

Answer:

1/72

Step-by-step explanation:

1/8 of 1/9

=1/8x1/9

=1/72

6 0

3 years ago

Read 2 more answers