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bekas [8.4K]
4 years ago
10

Which of the following represents “ 10 times the sum of a number and 14 is equal 9 times the number”?

Mathematics
1 answer:
solong [7]4 years ago
4 0

Answer:

The expressión is:

10(a+14) = 9a

and the number is:

-140

Step-by-step explanation:

The expression is:

10(a+14) = 9a

then:

10*a + 10*14 = 9a

10a + 140 = 9a

10a - 9a = -140

a = -140

Check:

10(-140+14) = 9*140

10*-126 = 1260

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Find the inverse of each of the given functions.
Leona [35]

Answer:

The inverse of the function is (3x+4)/2

Step-by-step explanation:

To find the inverse, exchange x and y and then solve for y

y = (2x-4) /3

Exchange x and y

x = (2y-4)/3

Solve for y

Multiply each side by 3

3x = (2y-4)/3 *3

3x =2y-4

Ad 4 to each side

3x+4 = 2y-4+4

(3x+4) =2y

Divide each side by 2

(3x+4)/2 =2y/2

(3x+4)/2 = y

The inverse of the function is (3x+4)/2

6 0
3 years ago
Read 2 more answers
Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $22 monthly fee
vladimir2022 [97]
Company a = 22 + 0.07m
company b = 8 + 0.12m

We are looking for the time when the prices are equal. i.e. the price of company a = the price of company b

company a = company b
22 + 0.07m = 8 + 0.12m
22 - 8 = 0.12m - 0.07m
14 = 0.05m
m = 14/0.05
m = 280

Therefore, the two companies will cost the same if you talk for 280 minutes
5 0
3 years ago
Which property can you use to show that 3x + (2x + 4) is equivalent to (3x + 2x) + 4?
Inessa [10]

Step-by-step explanation:

3x + (2x + 4) is equivalent to (3x + 2x) + 4

because there is no change of signs taking place as there is no (-) sign in front of the brackets

3x + (2x + 4) | (3x + 2x) + 4

3x + 2x + 4 | 3x + 2x +4

5x + 4 | 5x + 4

7 0
3 years ago
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What is the degree of the polynomial 9 + 4z?<br> O 4<br> O 2<br> O 9<br> O 1
damaskus [11]

Answer:

1

Step-by-step explanation:

There are no written exponents, meaning the highest power is the first power

5 0
3 years ago
I need help with a maths question please answer only if you know and not links​
kotegsom [21]

Answer:

x³/4z²

Step-by-step explanation:

Invert and multiply:

48x^5y²/12z^5 x z³/16x²y²=

(48x^5y²)(z³)/(16x²y²)(12z^5)

the y² cancel out

48÷16=3 (on top)

x^5÷x²=x³

12z^5/z³=z²(on bottom)

This leaves a 3x³ on top and 12z² on the bottom.  3÷12=4 (on bottom):

3x³/12z²

x³/4z²

8 0
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