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2 years ago

Use the five-step strategy for solving word problems to find the number described.

2 answers:

7 0

Not sure what five-step strategy you need but here’s how to solve the general problem:

1. Let the unknown number be x

2. Apply steps described in problem to x
2x-5=43

3. Add 5 on both sides
2x=48

4. Divide both sides by 2
x=24

tester [92]2 years ago

6 0

Answer: Let n = the number

n + 0.7n = 204

1.7n = 204

1.7n/1.7 = 204/1.7

n = 120

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Find the slope of the line passing through the points (-3. 7) and (2. -6).

Oksana_A [137]

Answer:

( 3 , 7 )

Step-by-step explanation:

maybe this will help you

5 0

2 years ago

Simplify the expression by combining like

MatroZZZ [7]

Answer:

Step-by-step explanation:

2m^2-m+4m^2+8m combine like terms

6m^2+7m

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3 years ago

Read 2 more answers

Please help me answer thanks.

Dmitry_Shevchenko [17]

Answer:

see explanation

Step-by-step explanation:

Given that M is directly proportional to r³ then the equation relating them is

M = kr³ ← k is the constant of proportion

To find k use the condition when r = 4, M = 160, thus

160 = k × 4³ = 64k ( divide both sides by 64 )

2.5 = k

M = 2.5r³ ← equation of variation

(a)

When r = 2, then

M = 2.5 × 2³ = 2.5 × 8 = 20

(b)

When M = 540, then

540 = 2.5r³ ( divide both sides by 2.5 )_

216 = r³ ( take the cube root of both sides )

r = $\sqrt[3]{216}$ = 6

5 0

3 years ago

Using the concepts of marginal social benefit and marginal social cost, explain how the optimal combination of goods can be dete

PtichkaEL [24]

Answer:

Optimal combination of goods can be determined in an economy that produces only two goods, with production of extra units of the two goods at a minimal marginal social cost. The consumption of the additional units of the two goods being produced will be benefitted by the consumers. This is known as marginal social benefit.

Step-by-step explanation:

Marginal social cost is the change in society's total cost brought about by the production of an additional unit of a good or service. It includes both marginal private cost and marginal external cost.

Marginal social benefit is the change in benefits associated with the consumption of an additional unit of a good or service. It is measured by the amount people are willing to pay for the additional unit of a good or service.

6 0

3 years ago

If the local linear approximation of f(x) = 2cos x + e^2x at x = 2 is used to find the approximation for f(2.1), then the % erro

yKpoI14uk [10]

Answer-

The % error of this approximation is 1.64%

Solution-

Here,

$\Rightarrow f(x) = 2\cos x + e^{2x}$