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2 years ago

How to find missing number in equivalent ratio

Mathematics

1 answer:

Rashid [163]2 years ago

5 0

Explanation:

Consider ...

x/a = b/c . . . . . find x

Multiplying by the denominator under x gives ...

x = ab/c . . . . the value of the unknown.

____

In the case where the unknown is in the denominator, you can invert the ratios and solve as above:

a/x = c/b . . . . . note that x is in the denominator

x/a = b/c . . . . . equivalent equation, solve as above

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Find the area of the figure. If needed, round to the nearest tenth.

Umnica [9.8K]

Answer:

$18 \:ft^2$

Step-by-step explanation:

The area of a trapezoid.

$(a+b)h\frac{1}{2}$

$(8+4)3 \times \frac{1}{2}$

$(12)3 \times \frac{1}{2}$

$36 \times \frac{1}{2}$

$=18$

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3 years ago

Taxi Driver charges a fixed rate of R to pick up a passenger in addition to Taxi Driver charges a rate of M for each mile driven

IRISSAK [1]

Answer:

t=nm+r

Step-by-step explanation:

Since you are trying to find time, represented by t, you set the equation equal to t. Then you need to add n multiplied by miles, m, to the fixed rate, r.

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3 years ago

The ratio of band students to choir students is 4:6. There are a total of 60 students in the band and choir. How many students a

xenn [34]

Answer:

Step-by-step explanation:

Given that:

The ratio of band students to choir students is 4 : 6.

Total number of students in the band and choir combined = 60

To find:

The number of students in the band = ?

Solution:

First of all, let us understand the meaning of the ratio given.

Ratio of 4 : 6 means there are 4 number of band students for every 6 number of choir students.

Also, number of band students will be in the multiples of 4 only and

number of choir students will be in the multiples of 6 only

Let the total number of band students = 4 $x$

Let the total number of choir students = 6 $x$

Total number of students = 60

As per question statement, we can write the following equation:

$\Rightarrow 4x+6x=60\\\Rightarrow 10x = 60\\\Rightarrow x =6$

Total number of band students = 4 $\times$ 6 = 24

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2 years ago

Which of the following shows 2 + (x + 3y) rewritten using the Associative Property of Addition?

Paha777 [63]

B (2+x) +3y

Other examples include (14 + 6) + 7 = 14 + (6 + 7)
because Adding 14 + 6 easily gives the sum of 20 to which we can add 7. The right hand side of the equation is where we add 14 and 13. Both sides will result in 27.

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3 years ago

What is the surface area of the pyramid?

xxMikexx [17]

Answer:

B.) 166

Step-by-step explanation:

10 x 2 = 20

12 x 10 = 120

13 x 2 = 26

20 + 120 + 26 = 166

8 0

3 years ago

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