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2 years ago

Which of the following ratios is equivalent to 3:4?

Mathematics

2 answers:

Lana71 [14]2 years ago

8 0

9:12 because if you multiply both sides by three it gives you 9 and 12

sveticcg [70]2 years ago

6 0

Answer:

Its A

Step-by-step explanation:

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Find exact value for cos(pi/16)

stellarik [79]

The exact value for cos(pi/16) would be :

cos (pi/16) = +/- √1+cosa/2

cos (pi/4) = sqrt2/2

Hope this helps

6 0

3 years ago

Please help me with this

inn [45]

It's the first one and the last one need any more help let me know okay

7 0

3 years ago

Is 1/4 greater than, less than or equal to 2/3<br>

Romashka-Z-Leto [24]

Answer:

Less than

Step-by-step explanation:

1/4 = 0.25 and 2/3 is approximately 0.67 so 1/4 is less than 2/3

8 0

3 years ago

Read 2 more answers

Which statements are true about the place values in the number 99.999? Choose all answers that are correct. A. The 9 in the hund

In-s [12.5K]

B and b only but pls check

4 0

3 years ago

Read 2 more answers

Rod is paid $85 to install a screen door and $115 to install a wooden door. In one week he installed 18 doors and was paid a tot

Rainbow [258]

Answer:Rod installed 7 screen doors

Step-by-step explanation:

Step 1

Let the number of screen door = x

And the number of wooden doors = y

since he installed 18 doors , we have that

screen door + wooden doors = 18

x + y = 18------ equation 1

Also the cost to install a screen door -= $85

and to install a wooden door = $115

And he was therefore paid a total of $1850

Therefore

85x + 115 y = $1860------- equation 2

Step 2----- Solving

x + y = 18------ equation 1

85x + 115 y = $1860------- equation 2

Multiplying equation 1 BY 85

85x + 85y= 1530------- equation 3

85x + 115 y = $1860------- equation 4

subtracting from equation 1 from (2)

115y- 85y= 1860-1530

30y=330

y = 330/30 = 11

To find x

x+ y=18

x= 18-y

x= 18-11= 7

Rod installed 7 screen doors and 11 wooden doors.

8 0

3 years ago