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Dafna1 [17]
2 years ago
11

Round to the nearest whole number: a) 19.3 b) 127.8

Mathematics
2 answers:
enot [183]2 years ago
7 0

Answer:

19 and 128

Step-by-step explanation:

19.3 is closer to 19 than 20 and 127.8 is closer to 128 than 127

tatiyna2 years ago
5 0

Answer:

A- 19, when rounding up it's usually .5 and up since this is .3 you would round down

B- 128, since this one is above .5 you would round-up and get 128

Step-by-step explanation:

A- 19

B-128

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Given:

'a' and 'b' are the intercepts made  by a straight-line with the co- ordinate axes.

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The equation of the line.

Solution:

The intercept form of a line is

\dfrac{x}{a}+\dfrac{y}{b}=1         ...(i)

where, a is x-intercept and b is y-intercept.

We have, 3a=b.

\dfrac{x}{a}+\dfrac{y}{3a}=1           ...(ii)

The line  pass through the point (1, 3). So, putting x=1 and y=3, we get

\dfrac{1}{a}+\dfrac{3}{3a}=1

\dfrac{1}{a}+\dfrac{1}{a}=1

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Multiply both sides by a.

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The value of a is 2. So, x-intercept is 2.

Putting a=2 in b=3a, we get

b=3(2)

b=6

The value of b is 6. So, y-intercept is 6.

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\dfrac{x}{2}+\dfrac{y}{6}=1

Therefore, the equation of the required line in intercept form is \dfrac{x}{2}+\dfrac{y}{6}=1.

5 0
3 years ago
A combination lock uses three numbers between 1 and 78 with​ repetition, and they must be selected in the correct sequence. whic
Oksana_A [137]

  first number      and       second number       and     third number   =     Total

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"Permutation lock" would be a more appropriate name.

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3 years ago
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Step-by-step explanation:

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input the values, so the equation would be 2π9(45/360), which equals 7.1

8 0
2 years ago
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GenaCL600 [577]

Answer:

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Step-by-step explanain:

For the bananas you have to multiply 3.5 lbs by 0.52 cents. You will then get $1.82

For the Pineapple you have to multiply 4.5 lbs by $1.19 and you will get $5.40

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I hope i helped! :))

3 0
3 years ago
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fomenos

Answer:

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Step-by-step explanation:

3 0
3 years ago
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