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2 years ago

A restaurant bill is $84.97 find the 20% show your work

Mathematics

2 answers:

Zarrin [17]2 years ago

6 0

Answer:

20% of $84.97 is 16.99, or 17 if you're rounding.

Step-by-step explanation:

83.97*0.30 = 16.994

That's pretty much all the work there is to do.

ICE Princess25 [194]2 years ago

3 0

Answer:

16.994

Step-by-step explanation:

it will be

20% = 0.2

84.97×0.2 =16.994

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70% of a number is 98.

Anni [7]

Set up the proportion:
70% - 98
90% - x

$\frac{70\%}{90\%}=\frac{98}{x} \\
\frac{7}{9}=\frac{98}{x} \\
\frac{7}{9}x=98 \\
x=98 \times \frac{9}{7} \\
x=14 \times 9 \\
x=126$

The answer is D. 126.

8 0

2 years ago

Use the substitution method to solve the system of equations.

Murrr4er [49]

Answer:

D. (1/4, -2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = -8x

4x - y = 3

Step 2: Solve for x

Substitution

Substitute in y: 4x - (-8x) = 3
Simplify: 4x + 8x = 3
Combine like terms: 12x = 3
Isolate x: x = 3/12
Simplify: x = 1/4

Step 3: Solve for y

Define equation: y = -8x
Substitute in x: y = -8(1/4)
Multiply: y = -2

8 0

2 years ago

Find the cost of tiling a rectangular plot of land 300m long and 150m wide at the rate of $6 per hundred square m

Ugo [173]

Answer:

hope this helps you.................

3 0

2 years ago

G(b) = 5b- 9 h(b) = (b - 1)^2 Evaluate. (hog)(-6) =

laiz [17]

Given:

The two functions are:

$g(b)=5b-9$

$h(b)=(b-1)^2$

To find:

The value of $(h\circ g)(-6)$ .

Solution:

We have,

$g(b)=5b-9$

$h(b)=(b-1)^2$

We know that,

$(h\circ g)(b)=h(g(b))$

$(h\circ g)(b)=h(5b-9)$

$(h\circ g)(b)=[(5b-9)-1]^2$

$(h\circ g)(b)=[5b-10]^2$

Putting $b=-6$ , we get

$(h\circ g)(-6)=[5(-6)-10]^2$

$(h\circ g)(-6)=[-39-10]^2$

$(h\circ g)(-6)=[-49]^2$

$(h\circ g)(-6)=2401$

Therefore, the value of $(h\circ g)(-6)$ is 2401.

7 0

3 years ago

Help me solve the out and inputs of the table

velikii [3]

The in is -5 the out for 7 is -21 the out for -3 is 9the infor 15 is -5 the out for -10 is 30

5 0

3 years ago