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4 years ago

I am studying so I need to know how to do question 8 a. b. c. D. IS EASY PLZ AND THANK YOU!!!

Mathematics

1 answer:

frez [133]4 years ago

5 0

Answer:

Ask your parents

Step-by-step explanation:

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Consider the following scenario:

shusha [124]

C. The number of times a dessert was offered at a special price.

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3 years ago

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PLLLLLLLLZZZZZZ help will give brainliest

Elodia [21]

Answer:A. 3x^2-2x-1+9x+2x^2-3=5x^2+7x-4

B. 5x^3+4x^2-x-3-5x^2-7x+4=5x^3-x^2-8x+1

C. Polynomials are closed under addition and subtraction...

Step-by-step explanation:

7 0

3 years ago

How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

kolbaska11 [484]

Answer:

120 liters of 60% alcohol solution is needed

Step-by-step explanation:

Let's assume

x liters of 60% alcohol solution is added

so, we get solution as

$=\frac{60}{100}\times x$

$=0.6x$

we are given

40 liters of a 20% alcohol solution is

$=40\times\frac{20}{100}$

$=8$

so, total alcohol solution is

$=8+0.6x$

now, we can find total solutions

total solutions is

$=x+40$

now, it is making 50% solution

so, we get

$\frac{8+0.6x}{x+40} =\frac{50}{100}$

now, we can solve for x

$\left(8+0.6x\right)\cdot \:100=\left(x+40\right)\cdot \:50$

$800+60x=50x+2000$

$10x=1200$

$x=120$

So,

120 liters of 60% alcohol solution is needed

4 0

3 years ago

A geometric sequence has an initial value of −8 and a common ratio of 1.5. Select all the function(s) or formula(s) that could r

Feliz [49]

Answer:

A and c

Step-by-step explanation:

I took the test

4 0

3 years ago

In slope-intercept form, what is the equation of the line containing the points (−1, 2) and (2, −1)?

kvv77 [185]

Y2 - y1 over x2 - x1 = slope
2 - (-1) = 3
-1 - 2 = -3
the slope is 3/-3, or -1
y = -x
2 = 1 + 1
The equation of the line is y = -x + 1

6 0

3 years ago