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7nadin3 [17]
2 years ago
10

The ratio of math teachers to choir teachers is 3:2 respectively. There are 12 math teachers. How many math and choir teachers a

re there all together?
Mathematics
2 answers:
marysya [2.9K]2 years ago
8 0

Answer:

30

Step-by-step explanation:

3 + 2 = 5 \\  \frac{2}{5}  \times x = 12 \\   \\  \frac{2x}{5}   = 12 \\ cross \: mutiply \\ 2x = 60 \\ divde \:both \: sides \: by \: 2 \\ x = 30

IrinaK [193]2 years ago
8 0

Answer:

30

Step-by-step explanation:

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How do you solve this question<br><br> /
Alinara [238K]

Answer:

5/18

Step-by-step explanation:

Parentheses next to each other mean to multiply. So, this problem means you need to multiply -4/9 and -5/8. To multiply fractions, you just have to multiply across. To make it easier to understand what I mean...

<u>-4 </u>x <u>-5</u>  = <u>20</u> (when you multiply two negatives, it makes a positive)

9 x 8   = 72

20/72 simplifies to 5/18.

Hope this helps!! Have a wonderful day C:

8 0
3 years ago
Given f(x)=10(3−x)+6, what is the value of f(−1)?
Ber [7]

Answer: 46

Step-by-step explanation:

10 (3 +1) + 6

30 + 10 + 6

46

5 0
3 years ago
What is the equation of a line with a slope of 2 and a y intercept of -5?
Elanso [62]

Answer:

y=2x-5

Step-by-step explanation:

The slope is how you move so you could also call it m

The y intercept is where you begin so you could call it b

So every time you need to find the equation or which one is like the slope just remember m=move b= begin

y=mx+b

7 0
3 years ago
If x-9 is a factor of x^2 -5x-36 what is the other factor?<br> A-x-4<br> B-x+4<br> C-x-6<br> D-x+6
poizon [28]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the mid point of points A (-8, -8) and B (-1, -3) graphically<br><br> its deltamath
Misha Larkins [42]

-4.5,-5.5

Step-by-step explanation:

-8-1/2 , -8-3/2

=-4.5 , -5.5 (midpoint)

7 0
2 years ago
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