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3 years ago

Use the Distributive Property to rewrite each algebraic expression.

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

6 0

Answer:

1. 5y+20

2. r = -4

3. 12x+60

Step-by-step explanation:

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H + 52 72<br> ———- = —-<br> 70. 56

oee [108]

Answer:

h = 38

Step-by-step explanation:

$\frac{h + 52}{70} = \frac{9}{7}$

$h + 52 = \frac{9}{7} \times 70$

$h + 52 = \frac{9 \times 70}{7}$

$h + 52 = \frac{630}{7}$

$h + 52 = 90$

$h = 90 - 52$

$h = 38$

the answer is 38.

5 0

3 years ago

An item costs n dollars. If the price of the item increases by 25%, the new price can be represented by the expression n + 0.25n

Schach [20]

Explanation

I saw this answer in a different question today.

Moreover, 1n + 0.25n = 1.25n

4 0

3 years ago

Read 2 more answers

Identify the area of the trapezoid.

Vlad1618 [11]

Option B: The area of the trapezoid is 157.5 m²

Explanation:

We need to determine the area of the trapezoid.

The area of the trapezoid can be determined by the formula,

$Area=\frac{h}{2} (a+b)$

where h is the height, a and b are the base of the trapezoid.

From the figure, it is obvious that $a=14$ , $b=7$ and $h=15$

Substituting these values in the formula, we have,

$Area=\frac{15}{2} (14+7)$

Simplifying the terms, we have,

$Area=\frac{15}{2} (21)$

Multiplying the terms in the numerator, we have,

$Area=\frac{315}{2}$

Dividing, we get,

$Area= 157.5 \ m^2$

Thus, the area of the trapezoid is 157.5 m²

Hence, Option B is the correct answer.

4 0

4 years ago

7) If £1 = €1.14.<br> Work out what €144 is in pounds.

jonny [76]

Answer:

$126\frac{6}{19}$ £

Step-by-step explanation:

£1 = €1.14 / $*\frac{144}{1.14}$

£ $\frac{144}{1.14}$ =144€= $126\frac{6}{19} \\$ £

8 0

3 years ago

using a regression calculator, what is a good prediction for the height of the tree when it is 100 years old?

mylen [45]

Correct Question:

Tim is investigating the relationship between the number of years since a tree was planted and the height of the tree in feet. His data are shown in the table. Years Since Tree was Planted vs. Height of Tree

Years since the tree was planted, x

Height of tree in feet, y

2, 17, 3, 25, 5, 42, 6, 47, 7, 54, 9, 69

Using a regression calculator, what is a good prediction for the height of the tree when it is 100 years old?

Answer/explanation:

There is no good prediction for the height of the tree when it is 100 years old. If you analyze careful in details the regression calculator you realize that it probably will not valid that far in to the future say 100 years.

6 0

3 years ago