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spin [16.1K]
4 years ago
5

It's PEMDAS please help

Mathematics
2 answers:
lapo4ka [179]4 years ago
8 0

Hello there,

15 - 20 / 2 • 4 + 20

15 - 10 • 4 + 20

15 - 40 + 20

-25 + 20

-5

Answer: -5

Hope I helped!

- Rose.

kicyunya [14]4 years ago
3 0

Answer:

A -5

Step-by-step explanation:

multiply and divide (left to right) = 20 / 2 x 4

Add and subtract (left to right) = -5

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The number 42 is increased to 46. what is the percentage by which the number was increased?
Arte-miy333 [17]

Answer:

9.52% ( to 2 dec. places )

Step-by-step explanation:

Calculate the percentage increase using

percent increase = \frac{increase}{original} × 100%

increase = 46 - 42 = 4, hence

percent increase = \frac{4}{42} × 100% ≠ 9.52%


7 0
3 years ago
Steve wants to buy a new music player. The player he wants costs $279.95. The city he lives charges a 5% sales tax, so for every
Yakvenalex [24]

Ultimately, the question is "What is 5% of $279.95?"

To answer this, multiply 279.95 by 5%, or 0.05 which is 5% in decimal form.

6 0
3 years ago
How do I simplify this (sinx)/(secx+1)
pochemuha

Answer:

Step-by-step explanation:

\frac{sin~x}{sec~x+1} =\frac{sin~x}{\frac{1}{cos~x}+1  } =\frac{sin~x~cos~x}{1+cos~x} \\=\frac{sin~x~cos~x}{1+cos~x} \times \frac{1-cos~x}{1-cos~x} \\=\frac{sin~x~cos~x(1-cos~x)}{1-cos^2 x} \\=\frac{sin~x~cos~x(1-cos~x)}{sin^2x} \\=\frac{cos~x(1-cos~x)}{sin~x} \\=cos ~x(csc~x-cot~x)\\or\\=cot~x(1-cos~x)

6 0
3 years ago
A group of market women sell at least one of yam, plantain and maize.12 of them sell maize,10 sell yam and 14 sell plantain,5 se
mina [271]

Let the three items be M, Y and P.

n{M ∩ Y} only = 4-3 = 1

n{M ∩ P) only = 5-3 = 2

n{ Y ∩ P} only = 2

n{M} only = 12-(1+3+2) = 6

n{Y} only = 10-(1+2+3) = 4

n{P} only = 14-(2+3+2) = 7

n{M∩P∩Y} = 3

Number of women in the group = 6+4+7+(1+2+2+3) as above =25 women.

8 0
3 years ago
What’s the right answers?
Umnica [9.8K]
The answer will be D
3 0
3 years ago
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