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kow [346]
2 years ago
7

Evaluate the expression.

Mathematics
2 answers:
mr Goodwill [35]2 years ago
5 0

Answer:

21

Step-by-step explanation:

We need to follow PEMDAS

15+3*2

We need to multiply first

3*2 = 6

Then we add

15+6

21

Hunter-Best [27]2 years ago
4 0

Answer:

21

Step-by-step explanation:

We use (BODMAS) :

Brackets

Order/Index

Division

Multiplication

Addition

Subtraction

15 + 3 × 2

We do multiplication before addition :

3 × 2 = 6

15 + 6 = 21

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Lyrx [107]

Answer:

27 years

Step-by-step explanation:

Let Holly's age be h and Aunt's age be a. We can setup 2 equations and solve.

1. \frac{h}{a}=\frac{4}{9}

2. a - 15 = h

We can plug in equation 2 into equation 1 to solve for aunt's age:

\frac{h}{a}=\frac{4}{9}\\\frac{a-15}{a}=\frac{4}{9}\\9(a-15)=4a\\9a-135=4a\\5a=135\\a=\frac{135}{5}=27

Holly's aunt's age is 27

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3 years ago
I don’t understand this problem
Wittaler [7]

68x87 i think?

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3 years ago
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Westkost [7]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Function : y=4 sin(3x)-2
STatiana [176]
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To find the period, you divide 2π by the term in front of x. In this case, it's 3, so we do 2π/3. This cannot be simplified further, but in degrees this equals 120°. This means that, with the question asking for 2 full cycles, that the graph will go through 2 full cycles in 240°

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Identical sweaters are on sale in two different stores. The sale price in store A is 30% off the regular price of $25. The sale
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3 years ago
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