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3 years ago

Evaluate x+x+x+2x for x=2

Mathematics

2 answers:

Marat540 [252]3 years ago

5 0

Answer:

Step-by-step explanation:

Okay, let's substitute all values for x as two.

(2) + (2) + (2) + 2(2) = ?

We get 6 + 4 = ?

6 + 4 = 10

Nutka1998 [239]3 years ago

4 0

Answer:

Step-by-step explanation: substitute 2 for all the x’s and add.

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3 years ago

8.76× 10 6 is times than 8.76× 10 2 .

VashaNatasha [74]

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4 years ago

Share 25 in the ratio of 4:1 plZ fast

Wittaler [7]

Answer:

20:5

Step-by-step explanation:

find how many parts (5)

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7 0

3 years ago

Find an explicit formula for the arithmetic sequence -31,-27,-23,-19,...

Yuri [45]

First term (a) = -31

Common Difference (d) = -27 - (-31) = -27 + 31 = 4

nth term = a + (n - 1)d = -31 + (n - 1)4 = -31 + 4n - 4 = 4n - 35

Hence, the formula is 4n - 35.

6 0

3 years ago

A recipe calls for 1/4 cup of brown sugar for every 2/3 cup of white sugar. How many cups of brown sugar is required for every c

sammy [17]

The right answer is Option B: 3/8

Step-by-step explanation:

Given,

1/4 cup of brown sugar is for 2/3 cup of white sugar.

Ratio of brown sugar to white sugar = $\frac{1}{4}:\frac{2}{3}$

Let,

x be the brown sugar required for 1 cup of white sugar.

Ratio of brown sugar to white sugar = x:1

Using proportion;

Ratio of brown sugar to white sugar :: Ratio of brown sugar to white sugar

$\frac{1}{4}:\frac{2}{3}::x:1$

Product of mean = Product of extreme

$\frac{2}{3}*x=\frac{1}{4}*1\\\frac{2}{3}x=\frac{1}{4}$

Multiplying both sides by 3/2

$\frac{3}{2}*\frac{2}{3}x=\frac{1}{4}*\frac{3}{2}\\x=\frac{3}{8}$

3/8 cups of brown sugar is required for 1 cup of white sugar.

The right answer is Option B: 3/8

Keywords: ratio, proportion

Learn more about ratios at:

#LearnwithBrainly

3 0

3 years ago