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Grace [21]
3 years ago
6

If the compound ratio of 7:5 and 8:x is 83:60 then find X​

Mathematics
1 answer:
baherus [9]3 years ago
5 0

Note: Consider 84 instead of 83 because the value of x is a decimal value of 83 which is not possible.

Given:

Compound ratio of 7:5 and 8:x is 84:60.

To find:

The value of x.

Solution:

Compound ratio of 7:5 and 8:x is 84:60.

\dfrac{7}{5}\times \dfrac{8}{x}=\dfrac{84}{60}

\dfrac{7\tims 8}{5\times x}=\dfrac{84}{60}

\dfrac{56}{5x}=\dfrac{84}{60}

By cross multiplication, we get

56\times 60=84\times 5x

3360=420x

Divide both sides by 1420.

\dfrac{3360}{420}=x

8=x

Therefore, the value of x is 8.

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What is 2k-8>-12 in word form
Dmitriy789 [7]

Answer:

k is greater than negative 2 or negative 2 is less than k.

Step-by-step explanation:

2k-8>-12

+8 +8

2k>-4

÷2 ÷2

k>-2

k is greater than negative 2

3 0
3 years ago
Hannah's school hosted a book donation. There are 150 students at her school, and they donated a total of b books! Hannah donate
svetoff [14.1K]

Answer:

x=3*\dfrac{b}{150}

Step-by-step explanation:

Let x = number of books that Hannah donated

We know that the number of students is 150 and the total number of books is represented by b, we can write that as:

Average number of books donated by each student = \dfrac{b}{150}

Now we know that Hannah donated 3 times as much as the average. We can write that as:

x=3*\dfrac{b}{150}

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3 years ago
WHAS UP MY PEEPS. I<br> haven't been here in a year
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Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If M is the Midpoint of AB, then solve for x find the unknown measures the given segments.
Leto [7]

Answer:

If M is midpoint of AB, then

AM=MB

4x-5= 2x+11

2x=16

x=8

AM= 4x-5

=4(8)-5

=32-5

=27

BM=2x+11

=2(8)+11

=16+11

=27

Hope it helps:-)

8 0
3 years ago
Find the equation of the line with slope 3/7 and that passes through the point (14, 0). Write your answer in the form y = mx + b
Allushta [10]

Answer:

y = 3/7x - 6

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

Slope <em>m</em> = 3/7

Point (14, 0)

<u>Step 2: Find y-intercept </u><em><u>b</u></em>

  1. Substitute:                    0 = 3/7(14) + b
  2. Multiply:                        0 = 6 + b
  3. Isolate <em>b</em>:                       -6 = b
  4. Rewrite:                         b = -6

<u>Step 3: Write linear equation</u>

y = 3/7x - 6

7 0
3 years ago
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