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neonofarm [45]
3 years ago
13

Q (x + 40) (3x – 20) R S Find m

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
5 0

Answer:

30

Step-by-step explanation:

1. x + 40 = 3x - 20

2. 40 = 2x - 20

3. 60 = 2x

4. 30 = x

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What's the inverse of 5y+4 = (x+3)2 + 1/2
kondor19780726 [428]
F^-1 (x) = 5x/2 - 5/4
8 0
3 years ago
A customer orders a round of coffee for her friends. If she orders two 12-ounce cups and one 16-ounce cup, she will owe the coff
astra-53 [7]

Answer:

D.$3.95

Step-by-step explanation:

Let us represent

12-ounce cup = x

16-ounce cup = y

A customer orders a round of coffee for her friends.

If she orders two 12-ounce cups and one 16-ounce cup, she will owe the coffee shop $10.75.

Hence:

2x + y = 10.75.....Equation 1

y = 10.75 - 2x

If she orders one 12-ounce cup and two 16-ounce cups, she will owe the coffee shop $11.30.

Hence:

x + 2y = 11.30.....Equation 2

We substitute 10.75 -2x for y in Equation 2

x + 2(10.75 - 2x) = 11.30

x + 21.50 - 4x = 11.30

Collect like terms

x - 4x = 11.30 - 21.50

-3x = -10.20

x = -10.20/-3

x = $3.40

Solving for y

y = 10.75 - 2x

y = 10.75 - 2($3.40)

y = 10.75 - 6.8

y = $3.95

Therefore , 16-ounce cup is represented by y, the cost for a 16-ounce cup of coffee is $3.95

Option D is correct

3 0
2 years ago
What is the answer?
Alex73 [517]

Answer:

see explanation

Step-by-step explanation:

k=3, giving 3, 4, 5 as the three integers.

He should have used k + (k+2) + (k+4) = 4k

which gives k = 4 and the correct answer is

4, 6, 8

5 0
3 years ago
in 2005 a company spent 493,749,335 on advertising. round the advertising figure to the nearest hundred thousand.​
anastassius [24]

Answer: 493,700,000

Step-by-step explanation:

7 0
2 years ago
(x+5)2−(x−2)=A<br> Need help!
valkas [14]
IF YOUR SOLVING FOR A THE ANSWER WOULD BE A=X+12

IF YOUR SOLVING FOR X IT WOULD BE X=-12+A
5 0
3 years ago
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