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3 years ago

What is the reciprocal of the number 2 3/4

Mathematics

1 answer:

Ne4ueva [31]3 years ago

6 0

C.4/11 is the answer
hope this helps ya ∩ω∩

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Three glasses of milk and 4 snack bars have a total of 89 carbohydrates (carbs), and 4 glasses of milk and 3 snack bars have a

EleoNora [17]

Answer:

There are 15 carbs in each glass of milk and 11 carbs in each snack bar.

Step-by-step explanation:

Let us assume:

The carbs in each glass of milk = x

The carbs in each snack bar = y

So, the carbs in 3 glass of milk = 3 ( Carbs in 1 glass of milk ) = 3 x

and the carbs in 4 snack bars = 4 ( Carbs in 1 snack bar) = 4 y

⇒ 3 x + 4 y = 89

Similarly, the carbs in 4 glass of milk = 4 ( Carbs in 1 glass of milk ) = 4 x

and the carbs in 3 snack bars = 3 ( Carbs in 1 snack bar) = 3 y

⇒ 4 x + 3 y = 93

Solving the given system of equation:

3 x + 4 y = 89 ............(1)

4 x + 3 y = 93 ............. (2)

Multiply equation (1) with (-4) , and (2) by 3 and add both equation.

-12 x - 16 y + 12 x + 9 y = -356 + 279

or, - 7 y = -77

⇒ y = 77 / 7 = 11 , or y = 11

Putting this in (1) , we get 3 x + 4y = 89

⇒ 3 x + 4(11) = 89 or, 3 x = 89 - 44 = 45

or, x = 45/3 = 15

⇒ x = 15

Hence, there are 15 carbs in each glass of milk.

There are 11 carbs in each snack bar.

4 0

3 years ago

A snail move 6 feet every 10 hours. how far it does in 15 hours

Anna007 [38]

6 feet:10 hours

multiply by 1.5 on both sides

9 feet:15 hours

answer: 9 ft

4 0

3 years ago

Which of the following statements about the volume of a sphere and the volume of a cone are true? Select two answers.

Tanzania [10]

B would be the answer to your question

4 0

3 years ago

Find u, v , u , v , and d(u, v) for the given inner product defined on Rn. u = (0, −4), v = (5, 3), u, v = 3u1v1 + u2v2

tigry1 [53]

Answer:

$=-12$

$d(u,v)=2\sqrt{31}$

Step-by-step explanation:

We are given that inner product defined on $R_n$

$=3u_1v_1+u_2v_2$

u=(0,-4),v=(5,3)

We have to find the value of <u,v> and d(u,v)

We have $u_1=0,u_2=-4,v_1=5,v_2=3$

Substitute the value then we get

$=3(0\cdot5)+(-4)(3)=-12$

Now, $d(u,v)=\left \|v-u\right \|$

Using this formula we get

$d(u,v)=\left \| (5,7) \right \|=\sqrt{3(5)^2+(7)^2}=\sqrt{75+49}=\sqrt{124}$

$d(u,v)=2\sqrt{31}$

7 0

3 years ago

Name the property of equality that justifies the following statement. If p = q, then p - r = q - r A) Multiplication Property .

Sonja [21]

Answer:

Option B is correct.

The property of equality that justifies the following statement is; Subtraction property.

Step-by-step explanation:

Subtraction property of equality states that you subtract the same number from both sides of an equation.

i.e, if a=b then, a-c=b -c

Given the statement:

if p =q

then, by definition of subtraction Property

Subtract r from both sides of an equation we get,

$p-r = q -r$

Therefore, the property of equality that justifies the following statement is; Subtraction property.

6 0

3 years ago

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