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GenaCL600 [577]
4 years ago
11

Can u all help with these plzz

Mathematics
2 answers:
jeyben [28]4 years ago
6 0
Use coucalater and divide and multiply and add and ya for them
Goshia [24]4 years ago
3 0
Answer:
11. D
12. A

step-by-step explanation:
11. using pemdas
(6/3) • 4 + 8
2 • 4 + 8
8 + 8
16 false
27 - 9/3 • (4 + 1)
27 - 3 • 5
27 - 15
12 false
(18 + 12) • 6 - 4
30 • 6 - 4
180 - 4
176 false
71 - 5 • (9 + 4)
71 - 5 • 13
71 - 65
6 true
12.
60 is divisible by 6 (60/6 = 10), 2 (60/2 = 30), and 3 (60/3 = 20)
33 is only divisible by 3 (33/3 = 11)
46 is only divisible by 2 (46/2 = 23)
21 is only divisible by 3 (21/3 = 8)
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Which of the following ordered pairs are solutions to the system of equations below?
Masja [62]

The ordered pair (-1, 6) is the solution to the system of equations.

Step-by-step explanation:

Given equations are;

3x+2y=9     Eqn 1

y=4x+10    Eqn 2

Putting value of y from Eqn 2 in Eqn 1

3x+2(4x+10)=9\\3x+8x+20=9\\11x=9-20\\11x=-11

Dividing both sides by 11

\frac{11x}{11}=\frac{-11}{11}\\x=-1

Putting x=-1 in Eqn 2

y=4(-1)+10\\y=-4+10\\y=6

Solution: (-1, 6)

The ordered pair (-1, 6) is the solution to the system of equations.

8 0
3 years ago
100 times 9/5 +32 what is the answer
ivanzaharov [21]

Answer:

212

Step-by-step explanation:

I hope this helps you!

6 0
3 years ago
Read 2 more answers
Select the correct answer. For which quotient is x=7 an excluded value?
Lisa [10]

Answer:

\frac{7x}{x^2 - 10x + 21} / \frac{x + 7}{7}

Step-by-step explanation:

Given

See attachment

To answer this question, we start by equating the denominators of each option to 0; then, solve for x

(a):

\frac{7x}{x^2 - 10x + 21} / \frac{x + 7}{7}

This gives

\frac{7x}{x^2 - 10x + 21} * \frac{7}{x + 7}

Set the denominator to 0

(x^2 - 10x + 21)(x + 7) = 0

Solve for x

(x^2 - 7x - 3x + 21)(x + 7) = 0

Factorize:

(x(x - 7) - 3(x - 7))(x + 7) = 0

(x - 7)(x - 3)(x + 7) = 0

This implies that:

x = 7\ or\ x = 3\ or\ x = -7

From above, one of the values of x is 7.

This implies that x = 7 is an excluded value for this quotient.

<em>Other options do not need to be checked, since there is only one answer.</em>

6 0
3 years ago
I NEED HELP IF YOU DONT KNOW THE ANSWER DONT COMMENT. <br><br> Please help me
Damm [24]

Answer:

Yeah

Step-by-step explanation:

1. understand time management

2. Value time.

3. use time wisely

4. take advantage of the opportunity of extra time.

5. smile, it's all linear! : )

6 0
3 years ago
Gary won $70,000 in the lottery after all tax deductions. He invested part of the money at 11% and deposited the remainder in ta
Tju [1.3M]
X - invested for the money at 11%
70 000 - x - deposited at 12%

0.11x + 0.12(70000-x)=7900
0.11x + 8400 - 0.12x = 7900
8400- 7900 = 0.01x
500 = 0.01x
x=50 000 invested at 11%
rest (20K) invested at 12%

4 0
4 years ago
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