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3 years ago

Factorise 6x - 3y + 9 Please explain how to do this

Mathematics

1 answer:

wel3 years ago

5 0

Answer:

3(2x-y+3)

you factor every number in the math question.

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If y = 6, what is the value of x given 8x + 5y = 62?

lord [1]

Answer:

x=4

Step-by-step explanation:

For this, we have to plug the y-value into the equation.

8x+5(6)=62

Now we solve for x: 8x+30=62

8x=32

x=4

Therefore, x=4

I hope this helped and have a good rest of your day!

5 0

3 years ago

Read 2 more answers

To multiply two fractions, multiply the numerator by the and the denominator by the

ArbitrLikvidat [17]

Answer:

numerator, denominator

Step-by-step explanation:

To multiply two fractions, multiply the numerator by the  numerator , and the denominator by the  denominator .

$\dfrac{a}{b}\cdot\dfrac{c}{d}=\dfrac{ac}{bd}$

3 0

3 years ago

Jan and Wayne went to the store to buy some groceries. Jan bought 2 cans of corn beef hash and 3 cans of creamed chipped beef fo

yulyashka [42]

Answer:

The system of equations that models the problem is:

$\left \{ {{2*H+3*C=4.95} \atop {3*H+2*C=5.45}} \right.$

Step-by-step explanation:

A system of equations is a set of two or more equations with several unknowns in which we want to find a common solution. So, a system of linear equations is a set of (linear) equations that have more than one unknown that appear in several of the equations. The equations relate these variables or unknowns to each other.

In this case, the unknown variables are:

H: price of a can of corn beef hash
C: price of a can of creamed chipped beef

Knowing the unit price of a product, the price of a certain quantity of that product is calculated by multiplying that quantity by the unit price. So the price for 2 cans of ground beef hash can be calculated as 2 * H and the price for 3 cans of ground beef with cream can be calculated as 3 * C. Jan paid $ 4.95 for those amounts from both cans. This means that the sum of the can prices must be $ 4.95. So: 2*H + 3*C= 4.95 Equation (A)

Thinking similarly, if Wayne bought 3 cans of corn beef hash and 2 cans of creamed chipped beef for $5.45, Wayne's buy can be expressed by the equation:

3*H + 2*C= 5.45 Equation (B)

Finally, the system of equations that models the problem is:

$\left \{ {{2*H+3*C=4.95} \atop {3*H+2*C=5.45}} \right.$

7 0

3 years ago

A carpenter use 65 shelves to make 13 bookcases. She uses the same number of shelves for each bookcase. Are 32 shelves enough to

serg [7]

Answer:

Yes.

Step-by-step explanation:

First, find the unit rate for 1 bookcase.

65 ÷ by 13 = 5 (unit rate)

Then, multiply the unit rate by the bookcases the carpenter wants to make.

6 · 5 = 30

Finally, subtract the shelves the carpenter wants to use by 30.

32 - 30 = 2 shelves.

Therefore, 32 shelves is enough to build 6 more bookcases. <3

5 0

3 years ago

A bird traveled 4 miles north before stopping to rest. The bird then flew 2,640 yards south in search of food. Finally, it flew

ra1l [238]

7 and 1/2 mile because 2,640=1.5 miles
4-1.5=2.5+5=7.5

8 0

3 years ago