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3 years ago

5

18. what Gives the missing value in 2/5 = x/30?

1 answer:

Korolek [52]3 years ago

3 0

X is equal to 12
This is because 5 was multiplied and 6 making 30. So you have to multiply 2 and 6 making x 12. Hope that makes sense

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Ivenika [448]

<u>SOLUTION TO QUESTION 1</u>

For $v-6\ge4$

We add $6$ to both sides of the inequality. This gives us

$v-6+6\ge4+6$

We simplify to obtain;

$v+0\ge10$

Hence,

$v\ge 10$

See the attachment for graph.

<u>SOLUTION TO QUESTION 2</u>

For the inequality $-5x$

We divide both sides by $-5$ and reverse the inequality sign because, we are dividing by a negative number. This implies that;

$\frac{-5x}{-5}> \frac{15}{-5}$

We simplify to get,

$x>-3$

See attachment for graph

<u>SOLUTION TO QUESTION 3</u>

For $3k>5k+12$

We group the terms in $k$ on the left hand side of the inequality,

$3k-5k>12$

We simplify to obtain;

$-2k>12$

We divide both sides by $-2$ and reverse the inequality sign because, we are dividing by a negative number again. This implies that;

$\frac{-2k}{-2}$

This simplifies to;

$k$

See attachment for graph.

<u>SOLUTION TO QUESTION 4</u>

Given the set {5,10,15}

All the possible subsets are;

{}, {5}, {10}, {15}, {5,10}, {5,15}, {10,15}, and {5,10,15}

<u>SOLUTION TO QUESTION 5</u>

For $2t\le-4 \: or\:7t\ge 49$

We divide through the first inequality by 2 and the second inequality by 7 to obtain;

$t\le-2 \: or\: t\ge 7$

Or

$t\le-2 , t\ge 7$

<u>SOLUTION TO QUESTION 6</u>

We have $|n+2|=4$

This implies that;

$(n+2)=4$ or $-(n+2)=4$

This implies that;

$n+2=4$ or $n+2=-4$

This simplifies to;

$n=4-2$ or $n=-4-2$

$n=2$ or $n=--6$

<u>SOLUTION TO QUESTION 7</u>

We have $|2x-7|>1$

This implies that;

$2x-7>1$ or $-(2x-7)>1$

We divide the second inequality by negative 1 and reverse the inequality sign.

$2x-7>1$ or $2x-7$

We group like terms to get,

$2x>1+7$ or $2x$

$2x>8$ or $2x$

We divide both inequalities by 2 to obtain;

$x>4$ or $x$

<u>SOLUTION TO QUESTION 8</u>

Given A={1,2,3,4,5,6,7,8,9}

and

B={2.4,6,8}

The union of A and B, are the elements in set A or set B or both.

$A \cup B$ ={1,2,3,4,5,6,7,8,9}

<u>SOLUTION TO QUESTION 9</u>

Given:

P={1,5,7,9,13}

R={1,2,3,4,5,6,7}

and

Q={1,3,5}

We apply our understanding of subsets to draw the Venn diagram.

See attachment for the Venn Diagram.

3 0

3 years ago

Cube-shaped shipping boxes, like the one shown, are packed into a van. They form a solid without gaps or overlaps that is 3 feet

lukranit [14]

Answer: 18 feet

Step-by-step explanation:

You didn't put the picture but based on your question, the volume would be calculated by multiplying the length by the width and the height. This would be:

= Length × Width × Height

= 3 × 2 × 3

= 18 feet

8 0

2 years ago

Please need help 15 points

Nat2105 [25]

A=sss……………………..okokokokokok

5 0

2 years ago

I need help with area of a rectangle! Plese help me out this is a starr review!

Kryger [21]

Answer:

B

Step-by-step explanation:

5 0

2 years ago

Given f(x) = 9x - 5 and g(x) = x², choose<br> the expression for (fºg)(x).

svetlana [45]

Answer:

9x² -5

Step-by-step explanation:

(f○g)(x) means f(g(x))

Put the definition of g(x) in place of x in the definition of f(x):

f(g(x)) = f(x²) = 9(x²) - 5

(f○g)(x) = 9x² - 5

5 0

3 years ago