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3 years ago

Write each expression in exponential form.

Mathematics

1 answer:

Artist 52 [7]3 years ago

7 0

Any number times 10.

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Rico can walk 3 miles in the same amount of time that Donna can walk 2 miles. Rico walks at a rate 2 miles per hour faster than

tatyana61 [14]

Answer:

$13$

Step-by-step explanation:

Donna's Rate is $R$

Rico's Rate is $R+2$

$\frac{R}{R+2}=\frac{2}{3}$

Cross-Multiply

$2(R+2)=32$

$2R+4=3R$

$4=R$

Donna's Rate is $R=4$

Rico's Rate is $R+2=6$

$\frac{6(130)}{60} = \frac{130}{10}=13$

5 0

3 years ago

which equation forms a pair of linear equations with 9x + 12y = 48 such that the system has no solution?

MA_775_DIABLO [31]

Answer:

Option D

Step-by-step explanation:

The given equation is 9x + 12y = 48.

When we simplify this equation by dividing through by 3, we obtain:

$3x + 4y = 12$

The slope-intercept form is

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

The slope is

$- \frac{3}{4}$

and the y-intercept is 3.

An equation that forms a pair of linear equations with 9x + 12y = 48 such that the system has no solution must have a slope of

$- \frac{3}{4}$

and a y-intercept not equal to 3.

That should obviously be the last option.

D) 6x +8y=32

The slope-intercept form is:

$y = - \frac{3}{4} x + 8$

5 0

4 years ago

3×10+7+(5×1/10)+(6×1/100)

jeka94

939/25 or decimal ( 37.56)

7 0

3 years ago

Read 2 more answers

За + 4 = 25 whats the answer

pychu [463]

The answer is a=7 :)

4 0

3 years ago

Read 2 more answers

Answer

timurjin [86]

Answer:

Betty = $600

Step-by-step explanation:

3/4 of Alice's salary is the same as 1/2 of Betty's salary

(3/4)a = (1/2)b

multiply both sides by 2

(3/2)a = b

Alice earns $200 less than Betty

b - a = 200

Substitute for b

(3/2)a - a = 200

(1/2)a = 200

multiply both sides by 2

a = 400

b = (3/2)400

b = 600

5 0

3 years ago