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3 years ago

Please help.. this is so difficult..

Mathematics

1 answer:

Mariana [72]3 years ago

8 0

Answer:

$42.06

Step-by-step explanation:

step 1: find the 6% of 34.50; by multiplying 34.50 x 0.06 ( 0.06 = 6/100 or 6%).

34.50 x 0.06 = 2.07

Step 2: 2.07 + 34.50 = 36.57 -----Total cost of meal + 6% tax.

Step 3: find 15% of 36.57

36.57 x 0.15 = 5.4855

Step 4: 36.57 + 5.49 (rounded because money only has two decimal places)

Answer:

$42.06

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2 years ago

1 Calculator What is the area of this figure? Enter your answer in the box. units²

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Answer:

44 units²

Step-by-step explanation:

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3 years ago

Given f(x) = x − 7 and g(x) = x2 . Find g(f(−1)).

ivann1987 [24]

Answer:

Step-by-step explanation:

$g(f(-1))$ can be found by first finding $f(-1)$ then taking that result and putting it into the function $g$ .

$f(-1)$ means we are going to take the expression $x-7$ and evaluate it for $x=-1$ :

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3 years ago

Plz helppppp will add u as friend

elixir [45]

Answer:

$y=1.44$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Step-by-step explanation:

Step 1: Define

$\frac{4.5}{y} =\frac{12.5}{4}$

Step 2: Solve for y

Cross-multiply: $4(4.5) = 12.5y$
Multiply: $18 = 12.5y$
Isolate y: $1.44 = y$
Rewrite: $y=1.44$

Step 3: Check

Plug in y to verify it's a solution.

Substitute: $\frac{4.5}{1.44} =\frac{12.5}{4}$
Divide: $3.125=3.125$

Here, we see that 3.125 does indeed equal 3.125. ∴ y = 1.44 is a solution of the equation.

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