Factorise this expression: 7y + 14

Answers

Answer 1

Answer: $7y=7\cdot y\n14=7\cdot2\n\ntherefore\n\n7y+14=7\cdot y+7\cdot2=7(y+2)$

Answer 2

Answer: you can take 7 out (it's the GCF) so you have 7(y+2)

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3x + 4y =10 6x -2y = 40

Answers

Simplifying

3X + 10 = 6X + 40

Reorder the terms:

10 + 3X = 6X + 40

Reorder the terms:

10 + 3X = 40 + 6X

Solving

10 + 3X = 40 + 6X

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-6X' to each side of the equation.

10 + 3X + -6X = 40 + 6X + -6X

Combine like terms: 3X + -6X = -3X

10 + -3X = 40 + 6X + -6X

Combine like terms: 6X + -6X = 0

10 + -3X = 40 + 0

10 + -3X = 40

Add '-10' to each side of the equation.

10 + -10 + -3X = 40 + -10

Combine like terms: 10 + -10 = 0

0 + -3X = 40 + -10

-3X = 40 + -10

Combine like terms: 40 + -10 = 30

-3X = 30

Divide each side by '-3'.

X = -10

Simplifying

X = -10

Show me 475 in expanded form

Answers

400+70+5 because 400 is in the hundreds place and 70 in the tens place while 5 is in the ones place.

400+90+0+5 is the answer

Factor the expression and exlplain
20b - 16

Answers

Answer:

4(5b-4)

Step-by-step explanation:

20b -16

Both terms are divisible by 4 so we can factor out a 4

4*5b -4*4

4(5b-4)

Two equations are given below: a − 3b = 9 a = b − 3 What is the solution to the set of equations in the form (a, b)? (−9, −6) (−4, −3) (−6, −3) (−9, −7)

Answers

To solve this equation you can plug in these numbers into the equations, so for example you can that the equation a-3b=9 and the points are (-9,-6). you would then insert the numbers so you would have the equation (-9)-3(-6)=9. simplify -9+18=9 and there you have it, the answer is (-9,-6)

Teddy makes 32 ounces of hot cocoa he needs to put equal amounts of cocoa into 5 cups each cup will contain between

Answers

32 divided by 5= about 6
Hope this helped

32/5=6
6*2=12
The answer is *12*

Which product is negative? A.

–3 • 5 • (–6) • 4

B.

–7 • (–3) • (–9) • 0

C.

–4 • (–6) • (–3) • (–5)

D.

–3 • 4 • (–2) • (–7)

Answers

Negative times a Negative = Positive
Positive times a Positive = Positive
Negative times a Positive = Negative
Positive times a Negative = Negative

Option A:

Negative * Positive * Negative * Positive

Negative * Negative * Positive

Positive * Positive

Positive

Option B:

Anything times 0 is 0, this is incorrect.

Option C:

Negative * Negative * Negative * Negative

Positive * Negative * Negative

Negative * Negative

Positive

Option D:

Negative * Positive * Negative * Negative

Negative * Negative * Negative

Positive * Negative

Negative

Therefore your answer is D.

the answer is d-( -168)

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PLZ HELP!Find the volume of this right triangular prism.A. 90cm^3B. 60cm^3C. 120cm^3D. 150cm^3

Jay and Blair went fishing. Together, they caught 27 fish. Jay caught 2 times as many fish as Blair. How many fish did Jay and Blair each catch?

What are the solution(s) to the quadratic equation 40 - x2 = 0?A. x = +2,10B. x = +4/10C. x = +2/5D. x = -4/5