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3 years ago

-3x + 4y – 5xy ; x= -3, y = 2 Need help ASAP plz

Mathematics

2 answers:

marysya [2.9K]3 years ago

4 0

Answer:

Step-by-step explanation:

First, plug in the numbers.

x = -3 and y = 2.

-3(-3) + 4(2) - 5(-3)(2)

Simplify by multiplying.

-3 * -3 = 9

4 * 2 = 8

-5 * -3 * 2 = 30

Your new equation is:

9 + 8 + 30 = ?

Simplify by adding. 9 + 8 + 30 = 47

stepan [7]3 years ago

3 0

Answer:

Step-by-step explanation:

-3(-3) + 4(2) - 5(-3)(2)

9 + 8 + 30 = 47

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Answer:

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Step-by-step explanation:

2 quarters

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3 years ago

Simplify the following fraction 4½-2⅝

Sophie [7]

Answer:

Step-by-step explanation:

4 1/2 - 2 5/8

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3 years ago

Read 2 more answers

WhiThree-fifths of the members of the Spanish club are girls. There are a total of 30 girls in the Spanish club.

vesna_86 [32]

Answer:

The total members in the Spanish Club = 50

Step-by-step explanation:

Let the total members in the Spanish Club = x

Now, number of girls in the club = 30

Three-fifths of the members are girls.

⇒ $(\frac{3}{5} )$ of total members x = 30

or, $(\frac{3}{5}) \times x = 30\\$

Now, solving for x, we get:

$x = 30 \times\frac{5}{3} = 50$

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7 0

3 years ago

6. Steve is packing sacks for treats at a party. Every sack is exactly the same. Steve has 42 candy bars and 126 lollipops. a. W

Sergeu [11.5K]

Answer:

Greatest sack = 42

1 candy bar and 3 lollipops

Step-by-step explanation:

Represent Candy bars with C and Lollipops with L

$C = 42$

$L= 126$

Solving (a): Greatest number of treat sacks

To solve this, we simply calculate the GCF of C and L

$42 = 2^1 * 3^1 * 7^1$

$126 = 2^1 * 3^2 * 7^1$

Hence, the GCF is

$GCF = 2^1 * 3^1 * 7^1$

$GCF = 42$

Hence, greatest number of sack is 42

Solving (b): Number of treat in each sack.

To do this, we simply divide the number of C and L by the calculated GCF

For C:

$Treats = \frac{C}{GCF}$

$Treats = \frac{42}{42}$

$Treats = 1$

For L:

$Treats = \frac{L}{GCF}$

$Treats = \frac{126}{42}$

$Treats = 3$

<em>Hence, 1 candy bar and 3 lollipops</em>

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3 years ago

Which of these figures has rotational symmetry?

Karo-lina-s [1.5K]

The answer is B,D

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3 years ago