All categories

3 years ago

2 1/7 :(1.5a)= 5/14 :0.8 PLEASE HELP NEED ANSWER BY TOMORROW

Mathematics

1 answer:

koban [17]3 years ago

4 0

Value of a is 3.22

Step-by-step explanation:

Solving the given expression:

$2\frac{1}{7}:(1.5a)=\frac{5}{14}:0.8$

Solving and finding the value of a.

$2\frac{1}{7}:(1.5a)=\frac{5}{14}:0.8\\\frac{15}{7}:(1.5a)= \frac{5}{14}:0.8\\Ratio\,\,can\,\, be\,\, written\,\, in\,\, fraction\,\, form:\\\frac{\frac{15}{7}}{1.5a}=\frac{\frac{5}{14}}{0.8}\\ Cross\,\,multiply:\\\frac{15}{7}*0.8=\frac{5}{14}*1.5a\\1.71=0.53\,\,a\\a= \frac{1.71}{0.53}\\a=3.22$

So, value of a is 3.22

Keywords: Ratio

Learn more about Ratio at:

#learnwithBrainly

You might be interested in

5) A submarine is cruising at -40 meters (40 meters below the surface). It

Verdich [7]

Answer:

-25

Step-by-step explanation:

You begin with -40, then decrease by 20 so your new value is -60, then increase by 35 so your final value is -25m... hope this helps (:

5 0

4 years ago

One maid can clean the house four times faster than another. Working together they can clean the entire house in 4 hours. How lo

stich3 [128]

5 hours long would it take the faster maid cleaning alone.

What is a linear equation in math?

A linear equation only has one or two variables.
No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
When you find pairs of values that make a linear equation true and plot those pairs on a coordinate grid, all of the points lie on the same line.

Suppose, time taken by faster maid be x , hours.

So, time taken by slower maid ,

$x_{2} = 4x_{1}$ ( 4 time faster maid )

Now, time taken by both of the made together is given by ,

$( \frac{x_{1}x_{2} }{x_{1} + x_{2} } )$

$\frac{x_{1}(4x_{1} ) }{x_{1} + 4x_{1} } = 4 hours$

$\frac{4x_{1} }{5} = 4 hours$

$x_{1} = 5 hours$ which is the time required by faster maid.

Learn more about linear equation

brainly.com/question/12974594

#SPJ4

8 0

2 years ago

Please tell me the expression to this

kobusy [5.1K]

Answer:

5(5x+11)

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What is the common ratio of the geometric sequence: -1/12.-1/2,-3,18,...

Minchanka [31]

$\frac{1}{6}$ : Common ratio

Check:
= $-\frac{1}{12}$ ÷ $\frac{1}{6}$
= $-\frac{1}{12}$ × 6
= $-\frac{1}{2}$

= $-\frac{1}{2}$ ÷ $\frac{1}{6}$
= $- \frac{1}{2}$ × 6
=-3

8 0

3 years ago

ΔJKL is dilated about the origin with a scale factor of 2/3. Which of the following is the image point of K(6,12)?

Snowcat [4.5K]

Answer: (4,8) which is choice A

f = 2/3 is the scale factor

x = 6 and y = 12 pair up to get the coordinates for point K's location

multiply f by x and y to get the new location

f*x = (2/3)*6 = (2/3)*(6/1) = (2*6)/(3*1) = 12/3 = 4

f*y = (2/3)*12 = (2/3)*(12/1) = (2*12)/(3*1) = 24/3 = 8

The results we get are 4 and 8. So (6,12) moves to (4,8)

This scale factor 2/3 = 0.667 is less than 1, so the image is smaller compared to the pre-image.

8 0

3 years ago