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3 years ago

Evaluate the expression if b= 6 and c= 10. 5b/c

Mathematics

2 answers:

damaskus [11]3 years ago

7 0

Answer:

Step-by-step explanation:

5b/c

=5*6/10

=30/10

alexgriva [62]3 years ago

4 0

Answer:

If b = 6 and c = 10, the value of an expression is 3.

Step-by-step explanation:

Given the expression

$\frac{5b}{c}$

We have to evaluate the expression if b = 6 and c = 10.

Important Tip:

In order to evaluate the expression $\frac{5b}{c}$ , all we need to do is to substitute the value of b and c in the expression.

As the expression is

$\frac{5b}{c}$

substitute b = 6 and c = 10 in the expression

$\frac{5b}{c}=\frac{5\left(6\right)}{10}$

$=\frac{30}{10}$

$=3$ ∵ $\frac{30}{10}=3$

Therefore, if b = 6 and c = 10, the value of an expression is 3.

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A rectangular vegetable garden will have a width that is 4 feet less than the length, and an area of 140 square feet. If x repre

UNO [17]

Answer:

The length of the garden=14 feet

Step-by-step explanation:

Step 1: Determine the dimensions of the garden

length of the garden=x feet

width of the garden=(x-4) feet

Step 2: Determine the area of the garden

Area of the garden=length×width

where;

area=140

length=x

width=x-4

replacing'

x(x-4)=140

x²-4x-140=0, solve the quadratic equation;

x={-b±√(b²-4ac)}/2a

x={4±√4²-4×1×-140}/2×1

x={4±√(16+560)}/2

x={4±√576}/2

x=(4±24)/2

x=(4+24)/2=14, or (4-24)/2=-10, take x=14

The length=14 feet, width=(14-4)=10 feet

The length of the garden=14 feet

8 0

2 years ago

area of a triangle: sine formula just please help i’m stuck and i don’t know what to do this was due yesterday

Katyanochek1 [597]

Answer:

269.0

Step-by-step explanation:

Trigonmetric area formula: 0.5 * a* b* sin(C)

a = 46

b=19

c = 38 degrees

0.5 * 46 * 19 * sin(38)

Pulg it into a calculator and you get 269.0441

Then round to the nearest tenth to get 269.0

3 0

3 years ago

Julissa is running a 10-kilometer race at a constant pace. After running for 18 minutes, she completes 2 kilometers. After runni

iren [92.7K]

Answer:

The required equation $k-2=\dfrac{1}{9}(t-18)$

C should be correct.

Step-by-step explanation:

Given: Julissa is running a 10-kilometer race at a constant pace.

After running for 18 minutes, she completes 2 kilometers.

First point: (18,2)

After running for 54 minutes, she completes 6 kilometers.

Second Point: (54,6)

We need to write an equation letting t, the time in minutes, represent the independent variable and k, the number of kilometers, represent the dependent variable

Using two point formula to find the equation of line

Formula:

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

Required Equation:

$k-2=\dfrac{6-2}{54-18}(t-18)$

$k-2=\dfrac{4}{36}(t-18)$

$k-2=\dfrac{1}{9}(t-18)$

Hence, The required equation $k-2=\dfrac{1}{9}(t-18)$

6 0

3 years ago

Read 2 more answers

The lateral surface area of a cylinder is given by the formula S=2pieRH . Solve the equation for r

Leona [35]

S=2pieRh
To solve for R you have to get it by itself.
R=S/2pieh

8 0

2 years ago

Keisha's paycheck is $154. She puts 18% of her paycheck into her savings account. How much from her paycheck does Keisha put int

Blizzard [7]

Keshia puts $27.72 into her savings account from her paycheck.

Step-by-step explanation:

Given,

Keshia's paycheck = $154

Savings added to account = 18% of paycheck

Amount of savings = $\frac{18}{100}*154$

Amount of savings = $\frac{2772}{100}$

Amount of savings = $27.72

Keshia puts $27.72 into her savings account from her paycheck.

Keywords: percentage, division

Learn more about division at:

#LearnwithBrainly

4 0

3 years ago