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3 years ago

Evaluate the algebraic expression h + h when b = 3, d = 12, h = 2 and r = 7.

Mathematics

2 answers:

tester [92]3 years ago

6 0

Wouldn’t it be 4 because it’s h+h and h=2 so 2+2=4

zubka84 [21]3 years ago

4 0

Given that h = 2,

h + h = 2 + 2
h + h = 4

Answer: h = 4

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15/30 = n/34 round to the nearest tenth.

avanturin [10]

The equation given in the question has to be answered to the nearest tenth. The only thing that one should be careful about is the cross multiplication part. Other than that there is no difficulty in the given problem. Now let us get down to the equation in the question.
15/30 = n/34
30 * n = 15 * 34
30n = 510
n = 510/30
= 51/3
= 17
So the value of the unknown variable "n" comes out to be 17.

6 0

3 years ago

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If 5% sales tax is added to her total, what is the greatest total cost of groceries Darla can spend in order to spend as close t

andrew-mc [135]

Answer:

Approximately $14.20

Step-by-step explanation:

Let the cost of the groceries be represented by c, then;

cost price + VAT = c + (5% of c)

To get the value of the cost, c, that would make him spend as close to $15. Since the tax is 5% of the cost price, then the cost price would be close to $15.

Let c = $14.20, then;

So that,

c + (5% of c) = 14.20 + (5% of 14.20)

= 14.20 + 0.71

= $14.91

Thus, the greatest total cost of groceries Darla can spend in order to spend as close to $15 as possible is approximately $14.20.

7 0

3 years ago

Diving simply the following: 3 power 12÷3 power 7

navik [9.2K]

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${3}^{12} \div {3}^{7} =$

${3}^{12} \times {3}^{ - 7} =$

${3}^{12 - 7} = {3}^{5}$

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8 0

3 years ago

Read 2 more answers

Need Answer Immediately!!!!!

Fiesta28 [93]

<h2>Answer:</h2>

y = $\frac{-5}{4}$ x + 3

<h2>Step-by-step explanation:</h2>

As shown in the graph, the line is a straight line. Therefore, the general equation of a straight line can be employed to derive the equation of the line.

The general equation of a straight line is given by:

y = mx + c <em>or </em>-------------(i)

y - y₁ = m(x - x₁) -----------------(ii)

Where;

y₁ is the value of a point on the y-axis

x₁ is the value of the same point on the x-axis

m is the slope of the line

c is the y-intercept of the line.

Equation (i) is the slope-intercept form of a line

Steps:

(i) Pick any two points (x₁, y₁) and (x₂, y₂) on the line.

In this case, let;

(x₁, y₁) = (0, 3)

(x₂, y₂) = (4, -2)

(ii) With the chosen points, calculate the slope <em>m</em> given by;

m = $\frac{y_2 - y_1}{x_2-x_1}$

m = $\frac{-2-3}{4-0}$

m = $\frac{-5}{4}$

(iii) Substitute the first point (x₁, y₁) = (0, 3) and m = $\frac{-5}{4}$ into equation (ii) as follows;

y - 3 = $\frac{-5}{4}$ (x - 0)

(iv) Solve for y from (iii)

y - 3 = $\frac{-5}{4}$ x

y = $\frac{-5}{4}$ x + 3 [This is the slope intercept form of the line]

Where the slope is $\frac{-5}{4}$ and the intercept is 3

8 0

3 years ago

What type of activities do you like to do and why? How can these activities help your personal physical fitness?

BigorU [14]

Answer:

sports because sports is fun and you can win stuff and also they can keep you in shape easy

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers