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2 years ago

Plz help me to answer

Mathematics

1 answer:

givi [52]2 years ago

8 0

Answer:

if you can only pick one it's e

Step-by-step explanation:

Im 90% sure a and c are both true answers while 70% sure that b and d are both true answers so unless someone says otherwise e is your best bet

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Need help asap this is due in 20 min!!! i will gove brainliest too! questions 8-11

andreev551 [17]

8. x= 7

9. x= 9

10. x= -10

11. x= -18

7 0

3 years ago

Given that R=9x+8y find x when y=8 and R=4

Ilya [14]

Answer:

Step-by-step explanation:

R = 9x + 8y

4 = 9x + 8*8

4 = 9x + 64

Subtract 64 from both sides

4 - 64 = 9x + 64 - 64

-60 = 9x

Divide both sides by 9

-60/9 = 9x/9

-20/3 = x

x = -6 2/3

8 0

4 years ago

Read 2 more answers

An excursion party had $2.00 to pay in total, but before the bill was paid 10 people from the party went away, and those that re

KatRina [158]

Answer:

20 people

Step-by-step explanation:

Let x be the number of people initially. We can find the amount each of them has to pay at first

2 / x

But when 10 people walk away, the remaining (x - 10) has to pay 10 cents more to get the same total of $2. This would means

$(\frac{2}{x} + 0.1)(x-10) = 2$

From here we can perform cross multiplication

$2 - 20/x + 0.1x - 1 = 2$

$0.1x - 20/x - 1 = 0$

Multiply both sides by 10x:

$x^2 -10x - 200 = 0$

$x= \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$

$x= \frac{10\pm \sqrt{(-10)^2 - 4*(1)*(-200)}}{2*(1)}$

$x= \frac{10\pm30}{2}$

x = 20 or x = -10

Since x can only be positive we will pick x = 20

3 0

3 years ago

How do I expand 1/6(18X_24)

USPshnik [31]

Distributive Property.
You would get 3x-4

5 0

3 years ago

What is GA in this photo?

antiseptic1488 [7]

Something angle nit sure ask your teacher

7 0

3 years ago