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tamaranim1 [39]
3 years ago
13

Sophie is 3.5 years younger than her brother. She knows that when she is b years old, her brother is b+3.5 years old. Right now,

Sophie is 11.5 years old.
How old is Sophie's brother?
Write your answer as a whole number or decimal.
Mathematics
2 answers:
Elden [556K]3 years ago
4 0

Answer:

The answer is 15

Step-by-step explanation:

Lets say b is the age of Sophie, so B would equal 11.5

11.5 + 3.5 = 15 years old.

djyliett [7]3 years ago
3 0

Answer:

b = 8

Step-by-step explanation:

b + 3.5 = 11.5

Subtract 11.5 from 3.5 to get her brother's age

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quester [9]

Answer: She could create 60 platters.

Step-by-step explanation:

Given: A salad bar offers vegetable platters in 4 sizes (small, medium, large, and super-sized) and 6 different vegetables to choose from.

Number of combinations of selecting <em>r</em> things from <em>n</em> things is given by:-

^nC_r=\dfrac{n!}{r!(n-r)!}

So, the number of combinations of selecting 2 different vegetables from 6 = ^6C_2=\dfrac{6!}{2!4!}=\dfrac{6\times5}{2}=15

Now, By Fundamental counting principle, the number of different platters she could create = (number of ways of selecting 2 different vegetables from 6) x (Number of sizes)

= 15 x 4

= 60

Hence, she could create 60 platters.

6 0
3 years ago
A typical television newscast has three cameras. The center camera directly faces the news anchors desk. The other two cameras a
Mnenie [13.5K]
<span>150 degrees. Let's assume the center camera is pointed to at an angle of 0 degrees. Since it has a coverage of 60 degrees, then it will cover the angles from -30 to +30 degrees. Now we'll continue to use the +/- 30 degree coverage for the other two cameras. The second camera is aimed at 45 degrees, so it's range of coverage is 15 degrees to 75 degrees (45 +/- 30). Notice that the range from 15 degrees to 30 degrees is covered by 2 cameras. Now the 3rd camera is pointed at -45 degrees, so its coverage is from -15 degrees to -75 degrees. It also has an overlap with the 1st camera from -15 to -30 degrees. The total coverage of all three cameras ranges from -75 degrees to 75 degrees. That means that an arc of 150 degrees in total is covered by all three cameras.</span>
7 0
3 years ago
Simplify 16m6-15mn+m6+17mn​
tia_tia [17]

Answer:

17m^6 + 2mn

Step-by-step explanation:

16m^6 -15mn +m^6 + 17mn

Combine like terms, rewrite the equation and perform the operations between the coefficients,

16m^6 +m^6 -15mn+17mn

17m^6 + 2mn

3 0
3 years ago
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Which line has a constant of proportionality between y and x of 1/2?
Gnesinka [82]

Answer:

It's line C.

Step-by-step explanation:

the slope of line C is 1/2 so that's the constant of proportionality

6 0
3 years ago
50 POINTS &amp; BRAINLIEST!!!! HELP ASAP!!!
Allisa [31]

6(2x - 11) + 15 = 21

First step use distributive property on the left side to remove the parenthesis, to do this multiply 6 by each term inside the parenthesis:

12x - 66 + 15 = 21

Second step, simplify the left side by combining the like terms:

12x - 51 = 21

Third step, add 51 to both sides of the equation:

12x = 72

Last step, divide both sides by 12:

x = 72/12

x = 6

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3 years ago
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