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2 years ago

4. If b books cost $9.25 and p pens cost $1.30

Mathematics

1 answer:

Brilliant_brown [7]2 years ago

5 0

Step-by-step explanation:

A. One book =$9.25÷b

=$9.25/b

B.One pen=$1.30÷p

=$1.30/p

C. One book+One book

=[($9.25÷b)+($1.30÷p)]÷($9.25+$1.30)

=[(&9.25/b)+($1.30/p)]/($10.55)

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Solve the system of equations by the addition method { 5x-y=-3 { 4x+3y=-48

Svetach [21]

Answer:

(-3,-12)

Step-by-step explanation:

Multiply the first equation by three to match the second equations y-term

3(5x-y=-3)
4x+3y=-48

15x-3y=-9
4x+3y=-48

The y-terms cancel out

15x=-9
4x=-48

Add the x-terms with each other and the terms after the equal sign as well

19x=-57

Divide -57 by 19

x=-3

Input your x-term (-3) into one of the two first equations and multiply

Either:

5(-3)-y=-3 or

4(-3)+3y=-48

-15-y=-3 or

-12+3y=-48

Simplify your terms

-y=12

3y=-36

Divide

y=-12

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3 years ago

If EF bisects CD.CG = 5x - 1, GD = 7x-13, EF = 6x - 4, and GF = 13. find EG.

Iteru [2.4K]

Answer:

EG = 19

Step-by-step explanation:

* Lets explain how to solve the problem

- If a line bisects another line that means the point of intersection

divides the second line into two equal parts

∵ EF bisects CD at G

∴ CG = GD

∵ CG = 5x - 1

∵ GD = 7x - 13

∴ 7x - 13 = 5x - 1

* Lets solve the equation

∵ 7x - 13 = 5x - 1

- Subtract 5x from both sides and add 13 to both sides

∴ 7x - 5x = 13 - 1

∴ 2x = 12

- Divide both sides by 2

∴ x = 6

- Point G divides EF into two parts EG and GF

∴ EF = EG + GF

∵ EF = 6x - 4

- Substitute the value of x to find EF

∵ x = 6

∴ EF = 6(6) - 4 = 36 - 4 = 32

∴ EF = 32

∵ GF = 13

- Substitute the values of EF and GF in the equation of EF

∴ 32 = EG + 13

- Subtract 13 from both sides

∴ 19 = EG

* EG = 19

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3 years ago

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masha68 [24]

36% = 36/100 divide both numerator and denominator by 4 gives you 9/25

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2 years ago

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Find the point that splits segment AB in half if point A is located at (4,3) and point B is located at

musickatia [10]

Answer:

(1, 4.5 )

Step-by-step explanation:

The required point is at the midpoint of AB

Use the midpoint formula

Given A(4, 3) and B(- 2, 6 ), then

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3 years ago

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Please help fast

Vladimir79 [104]

Answer:

B: II, IV, I, III

Step-by-step explanation:

We believe the proof statement — reason pairs need to be ordered as shown below

Point F is a midpoint of Line segment AB Point E is a midpoint of Line segment AC — given

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Draw Line segment AG — by Construction

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IV Line segment GC is parallel to line segment BH and Line segment BG is parallel to line segment HC — Substitution

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