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Natasha2012 [34]
3 years ago
8

How to solve 8(y+2.4) if y equals 0.3

Mathematics
1 answer:
anastassius [24]3 years ago
6 0

Answer:

21.6

Step-by-step explanation:

To solve for expressions with variables, substitute the variable's value is where the variable is in the expression.

The variable is y, and y's value is 0.3

Substitute y for 0.3

8(y+2.4)

= 8(0.3+2.4)

Now solve by following BEDMAS (brackets, exponents, division, multiplication, addition, subtraction).

= 8(0.3+2.4)      <=Solve the brackets by adding

= 8(2.7)    <= multiply

= 21.6

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I need help asap with this whole question!! what is the answer? with work. please!!
WARRIOR [948]

Answer:

the other percentage is 70 percent if thats what your asking.

Step-by-step explanation:

6 0
3 years ago
Find the slope of the line y = 5/8x - 1/2
VashaNatasha [74]

Answer:

slope = \frac{5}{8}

Step-by-step explanation:

Slope-intercept form is the way in which an equation is written to easily identify the line's slope and y-intercept. It is represented by the equation y = mx + b, in which m represents the slope.

By looking at the equation, we can see that it takes the y = mx + b format - y is isolated - therefore it is in slope-intercept form. Remember that the number in place of the m would represent the slope - and in this case, that number is \frac{5}{8}.

6 0
3 years ago
If cot(theta)=1.5 and theta is in quadrant 3, what is the value of sin theta
____ [38]
The answer:
cot(theta)=1.5, to find theta, cot(theta)=1.5 implies theta= arc cot (1.5)

but we kknow that cot(theta) = 1 /  tan(theta), this implies 

 1 /  tan(theta) =1.5, and  tan(theta) = 1 / 1.5 = 0.6
 
and theta is in quadrant 3,  costheta and sintheta are negatives

so  tan(theta) is positive, 

tan(theta) = 0.6, therefore,  (theta) = arctan ( 0.6)= 30.9°

finally  (theta) =  30.9°


7 0
3 years ago
Which of the following equations has no solution?
Ronch [10]

Answer:

B and D

Step-by-step explanation:

Equations with the same x- term on both sides will have no solution

A

4x - 13 = 5(x + 4) = 5x + 20

4x ≠ 5x

This equation has a solution

B

5(3 + 2x) = 10x + 4

15 + 10x = 10x + 4

10x on both sides ⇒ no solution

C

2(3 - 5x) = 8(x + 1)

6 - 10x = 8x + 8

- 10x ≠ 8x

This equation has a solution

D

9x - 6 = 3(3x - 2) = 9x - 6

9x on both sides ⇒ no solution

8 0
3 years ago
In a class, 60% of the students are girls. There are 18 girls in the class.
N76 [4]

Answer:

The answer is 30

Step-by-step explanation:

If you were to do 50% of 30, it would be 15 students that are girls. There's 18 students that are girls though, so the extra 10% would make 18 students in the class girls. The remaining 40% would be 12 boys. So basically you're taking 10% from one side and putting it in the other because 50% of 30 is 15 (well this is at least how I would do it, I don't know how others would do it though)

5 0
3 years ago
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