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Degger [83]
3 years ago
10

Write the following proportion using colons. 7 is to 21 as 3 is to 9.

Mathematics
1 answer:
eduard3 years ago
8 0
This is how proportion is written 7:21=3:9. The colons are sign of division so it can be shown in the terms of fraction as 7/21=3/9 or 1/3=1/3
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7.19 divided by 58 estimate the quotients
lozanna [386]

Answer:

0.124

Step-by-step explanation:

\frac{7.19}{58}

To divide the numbers, we need to remove the decimal point

To remove decimal point , we multiply top and bottom by 100

\frac{719}{5800}

Use long division. After using decimal point at the top we can include any number of zeros with 719

                            . 1 2 3 9

                        ---------------------

        5800         7190

                          5800

                     ------------------------(subtract)

                          13900

                          11600

                       ---------------------------(subtract)

                           2300 0

                           1740 0

                       --------------------------(subtract)

                            56000

                            52200

                       ---------------------------(subtract)

                             3800 0

Division goes on ............

Estimate the quotient to 3 decimal places

Quotient = 0.124



6 0
3 years ago
Asapppppp!!!!!!!!!!!!!!!!!!!!!!!!!!!
svp [43]

Answer: x = 148 degrees

Step-by-step explanation:

This problem makes use of Supplementary Angles.  Supplementary Angles states that two angles that make up a line add to 180.  Thus, simply use the equation 32 + x = 180

x = 148

Hope it helps <3

5 0
3 years ago
If f(x) = 3x - 1 and 2f(b) = 28, what is the value of f(2b)?
Vlad1618 [11]
<h3>Answer:  29</h3>

=================================

Work Shown:

Solve the second equation for f(b)

2f(b) = 28

f(b) = 28/2

f(b) = 14

----------

Plug in x = b and solve for b

f(x) = 3x-1

f(b) = 3b-1 ... replace every x with b

14 = 3b-1 ..... plug in f(b) = 14

3b-1 = 14

3b = 14+1

3b = 15

b = 15/3

b = 5

-----------

f(x) = 3x-1

f(2b) = 3(2b)-1 .... replace every x with 2b

f(2b) = 3(2*5)-1 .... plug in b = 5

f(2b) = 3*10-1

f(2b) = 30-1

f(2b) = 29

3 0
3 years ago
Given △JKL, sin(38°) equals
AURORKA [14]
The answer would be cos(52°)
5 0
3 years ago
Read 2 more answers
Please help! (10 points i only have 21!)
vovikov84 [41]

Answer:

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7 0
3 years ago
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