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ruslelena [56]
3 years ago
7

Help with questions 21-23 using pemdas

Mathematics
1 answer:
taurus [48]3 years ago
5 0

Answer:

21. 123    22. 6.86 or 6/ 6/7  23. 90

Step-by-step explanation:

21. (6+4)² + (22+10÷2)

     (10)² + (22 + 5)

        100 + 27

           127

22. (11+42-5) ÷ (11-4)

         48 ÷ 7

        6.85 or 6 6/7

23. (17-3) × (14 - 6) -22

         14 × 8 - 22

         112 - 22

           90

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A middle school has 1200 students. The ratio of boys to girls is 5 to 4. How many girls
SOVA2 [1]

Answer:

Step-by-step explanation:

1200/4

3 0
3 years ago
Lines AB and CD are parallel. If 6 measures (3x - 33)°, and 5 measures 123°, what is the value of x?
Andrews [41]

The value of x from the figure is 30 degrees

<h3>Parallel lines</h3>

Parallel lines are lines that have the same slope and have 0 degrees as the angle between them.

The sum of angle 5 and angle 6 are supplementary. Hence;

m<5 + m<6 = 180

3x - 33 + 123 = 180

3x + 90 = 180

3x = 180 - 90

3x = 90

Divide both sides by 3

3x/3 = 90/3

x = 30

Hence the value of x from the figure is 30 degrees

Learn more on angles here: brainly.com/question/25770607

6 0
2 years ago
PLEASE HELP:
Tema [17]
X=moira y=mother

x=1/2y-3 

x=1/2(76)-3

x=38-3

x=35  

Moira is 35 years old.
3 0
3 years ago
Felix earns $450 per week plus 3% of sales over $4800. Felix’s sales are $53000. How much does Felix earn?
Leni [432]

1.  Felix’s sales are $53000. He has 3% of sales over $4800, then he has 3% of sales $(53000-4800)=$48200.

Now

$48200 -- 100%

$x -- 3%.

Write a proportion:

\dfrac{48200}{x}=\dfrac{100}{3},\\ \\x=\dfrac{48200\cdot 3}{100}=482\cdot 3=1446.

Thus, he additionally gets $1446.

2. If he earns $450 per week and earns $1446 of sales, then Felix earns

$450+$1446=$1896.

Answer: correct choice is A

5 0
4 years ago
(b) Four friends buy cinema tickets using this offer.
zalisa [80]

Answer:

The cost of one ticket will be £8.20

7 0
2 years ago
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