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Fittoniya [83]
2 years ago
15

Can you pls help me thank you have a good day

Mathematics
2 answers:
dezoksy [38]2 years ago
8 0

Answer:

7 dogs

Step-by-step explanation:

f(x) = 2x + 1

f(3) = 3(2) + 1

= 7

Alex_Xolod [135]2 years ago
4 0
7 Dogs!
There are seven dogs in total.
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Please help me to figure out this question. Thanks
Marta_Voda [28]

Answer:

a) 5 : 7

b) 25 black keys

c) 100 black keys will appear.

Step-by-step explanation:

a) From the picture,

There are 5 black keys and 7 white keys.

Therefore, the ratio of black keys to white keys are = 5 : 7 = 5/7

b) If the pattern continues, 25 black keys will be appeared on a portable full-sized keyboard.

Explanation -

From part A, we get the ratio of black keys to white keys = 5 : 7. Therefore,

If there are 7 white keys, there are 5 black keys

If there are 1 white keys, there are 5/7 black keys

If there are 35 white keys, there are (5*35)/7 black keys

= 25 black keys.

c) If there are 240 keys, the black keys will appear -

We get, the ratio of black keys to white keys = 5 : 7

The summation of the black keys and white keys = (5 + 7) = 12.

Therefore, if there are 240 keys, the black keys will be

= (5/12) x 240

= (5 x 240)/12

= 100

Therefore, there are 100 black keys.

7 0
3 years ago
Find the measure of an angle B of a triangle with the following datas: C=80, side b=40 cm, side c=56cm
Oliga [24]

Answer:

3200/560000983663562666663672

8 0
3 years ago
Carter I hope you see this please respond back
gulaghasi [49]

Answer:

who?

Step-by-step explanation:

3 0
2 years ago
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-6+(-1)=<br> ..................
Mice21 [21]

Answer:

It's -7

Step-by-step explanation:

8 0
3 years ago
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Which expression represents, six times a number plus 8 times a number?
Goryan [66]
B  is the answer 6a + 8b
6 0
3 years ago
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