All categories

3 years ago

What is the solution to the equation: 5 = 2/5a A: 2 B: 4 2/3 C: 12 1/2 D: 25

Mathematics

1 answer:

rodikova [14]3 years ago

3 0

Answer:C

Step-by-step explanation:

5= 2/5a

Multiply by 5/2 on each side

5/2 x5=2/5ax5/2

25/2=10/10a

25 divided by 2 is 12 1/2

You might be interested in

Angela bought gifts for her friends in each gift was $10 Y represent the total cost and X represent the number of guests right i

Nezavi [6.7K]

Answer:

each gift =$10

total=y

number of gifts =x

therefore,total= each gift * number of gifts

=$10* x

6 0

3 years ago

A tent is in the form of a right circular cylinder surmounted by a cone. The volume of the tent can be modeled by the function V

Setler [38]

Answer:

Check this explaination below

Step-by-step explanation:

Check the attached picture

6 0

2 years ago

Cherie is jogging around a circular track. She

skelet666 [1.2K]

Answer:

Measure of minor angle JOG is $95.5^{\circ}$

Step-by-step explanation:

Consider a circular track of radius 120 yards. Assume that Cherie starts from point J and runs 200 yards up to point G.

$\therefore m JG = 200 yards, JO=120 yards$ .

Now the measure of minor arc is same as measure of central angle. Therefore minor angle is the central angle $\angle JOG = \theta$ .

To calculate the central angle, use the arc length formula as follows.

$Arc\:Length\left(s\right) = r\:\theta$

Where $\theta$ is measured in radian.

Substituting the value,

$200=120\:\theta$

Dividing both side by 120,

$\dfrac{200}{120}=\theta$

Reducing the fraction into lowest form by dividing numerator and denominator by 40.

$\therefore \dfrac{5}{3}=\theta$

Therefore value of central angle is $\angle JOG = \theta=\left(\dfrac{5}{3}\right)^{c}$ , since angle is in radian

Now convert radian into degree by using following formula,

$1^{c}=\left(\dfrac{180}{\pi}\right)^{\circ}$

So multiplying $\theta$ with $\left(\dfrac{180}{\pi}\right)^{\circ}$ to convert it into degree.

$\left(\dfrac{5}{3}\right)^{c}=\left(\dfrac{5}{3}\right) \times \left(\dfrac{180}{\pi}\right)^{\circ}$

Simplifying,

$\therefore \theta = 95.49^{circ}$

So to nearest tenth, $\angle JOG=95.5^{circ}$

8 0

3 years ago

What is the area and perimeter of a rectangle that has base of 18 inches and height of 5 inches

KATRIN_1 [288]

Answer:

area is 90 and perimeter is 46

Step-by-step explanation:

the area for a rectangle is l * w, so 18*5 is 90, and the perimeter is 2l+2w, which is 46.

8 0

3 years ago

Read 2 more answers

Graph the linear equation. <br> 3x-4y=12 Thanks

WITCHER [35]

Hi
You can choose to points (x,y) which solve the equation, like (0,-3) and (4,0) and then draw a line through the points.

6 0

3 years ago

Read 2 more answers