3 years ago

The sum of 11 and k??

Mathematics

1 answer:

Marizza181 [45]3 years ago

5 0

11 + k

The 'sum' means addition. If the problem gives you a k value, therefore you can just plug the k value in for K.

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Evaluate and simplify the expression when a = 4 and b = -1.

Gwar [14]

Answer:

$\frac{3}{2}$

Step-by-step explanation:

$\frac{5 - 2(a + 3b)}{2}$

substitute a = 4 and b = -1

$= \frac{5 - 2(4 + 3( - 1))}{2}$

expand and simplify the numerator

$= \frac{5 - 2(4 - 3)}{2}$

$= \frac{5 - 2(1)}{2}$

$= \frac{5 - 2}{2}$

$= \frac{3}{2}$

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3 years ago

HELP.... BRAINLIEST FOR ANYONE WHO ANSWERS

sergiy2304 [10]

Answer:

7/12 miles i think

Step-by-step explanation:

3/4 x 1/3 = 1/4

1/3 + 1/4 = 7/12 miles

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2 years ago

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A cargo truck travels at 75 mi/h. There are two drivers that keep the

ra1l [238]

Answer:

750

Step-by-step explanation:

What is the empirical formula of a carbon- oxygen compound, given that a 95.2 g sample of the compound contains 40.8 g of carbon and the rest oxygen.

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2 years ago

tyler has a rectangular garden measuring 12m by 20 m that he wants to split diagonally from corner to corner using a fence. how

adelina 88 [10]

Answer:

23.3

(or $4\sqrt{34}$ (let me know if you wanted this one and is you want it explained) lol)

Step-by-step explanation:

To find the length of the fence, use the Pythagorean theorem because, if you cut a rectangle diagonally, you will create two right triangles, and this formula only works with right triangles:

$a^{2} +b^{2} =c^{2}$

Insert values:

$12^{2} +20^{2} =c^{2}$

Solve for c:

Evaluate exponents

$144+400=c^2$

Simplify addition

$544=c^2$

Find the square root of both

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The fence needs to be approximately 23.3 m.

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3 years ago

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A recipe has a ratio of 2 cups of sugar to 6 cups of flour. How many cups of flour are used for each cup of sugar in the recipe?

statuscvo [17]

The ratio 2 to 6 can be reduced to 1 to 3. That means for every 3 cups of flour there is one cup of sugar.

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3 years ago

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