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2 years ago

1. Adelle solved the equation ½ (x + 8) = - 30 as shown.

Mathematics

1 answer:

Deffense [45]2 years ago

5 0

Answer:

-68

Step-by-step explanation:

1/2(x+8)=-30

1/2x+4=-30

You then subtract 4 on both sides which makes:

1/2x=-34

Then you divided 1/2 on both sides:

x=-68

(Did I do this correctly, if not I appologize!)

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Your teacher will grade your response for questions 21–23 to ensure you receive proper credit for your answer.

mario62 [17]

Answer:

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(b) By 2/9 hours

Step-by-step explanation:

Given

Arts = four over nine hours

Maths = two over nine hours

Solving (a): Which takes longer?

First, represent both as fraction

$Arts = \frac{4}{9}\ hours$

$Maths = \frac{2}{9}\ hours$

Convert fraction to decimal

$Arts = \frac{4}{9}\ hours$

$Arts = 0.444\ hours$

$Maths = \frac{2}{9}\ hours$

$Maths = 0.222\ hours$

By comparison:

$0.444 > 0.222$

Hence, Arts take longer

Solving (b): How much longer?

To do this, we calculate the difference.

$Difference = Arts - Maths$

$Difference = \frac{4}{9} - \frac{2}{9}$

Take L.C.M

$Difference = \frac{4 - 2}{9}$

$Difference = \frac{2}{9}\ hours$

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3 years ago

What is the next term in this geometric sequence<br>5/6,5/9,10/27,20/81

Ghella [55]

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Carla purchased a hat for $12, a purse for $26, and a dress for $125. The sales tax rate was 5.6 percent. What was the total amo

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