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3 years ago

A toy airplane cost 4.84.It cost 4 times as much as a toy car.What is the cost of the toy car?

Mathematics

2 answers:

BaLLatris [955]3 years ago

5 0

Divide 4.84 by 4
4.84/4=1.21

Veronika [31]3 years ago

4 0

Divide the cost of the airplane by 4.

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Solve by substitution y=9x-19 6x-2y=26

sineoko [7]

Answer:

Step-by-step explanation:

6x-2(9x-19)=26

6x -18x +38 =26

-12x = 26-38

-12x = -12

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3 years ago

What is the equation of the graph below?

SOVA2 [1]

Answer:

Step-by-step explanation:

Y=cos(x+r/2)

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3 years ago

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Please help me please

spayn [35]

Answer:

A. 34°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] tanθ = opposite over adjacent
Inverse Trig

Step-by-step explanation:

Step 1: Define

Identify variables

Angle θ = x

Opposite leg AC = 24

Adjacent leg CB = 35

Step 2: Solve for x

Substitute in variables [Tangent]: $\displaystyle tanx^\circ = \frac{24}{35}$
Inverse Trig [Tangent]: $\displaystyle x^\circ = tan^{-1}(\frac{24}{35})$
Evaluate: $\displaystyle x = 34.439^\circ$
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3 years ago

The times for completing one circuit of a bicycle course are normally distributed with a mean of 72.5 minutes and a standard dev

polet [3.4K]

Answer:

76.881 minutes

Step-by-step explanation:

If we look for the value of 25% in the normal distribution table, it corresponds to z = - 0.674

I mean:

P( Z < - 0.674) = 0.25

Now, we know that the formula in this case would be

cut off time = m - z*sd

where m is the mean and sd is the standard deviation.

replacing these values we have left:

cut off time = 72.5 - (-0.674)*6.5

cut off time = 76.881

Therefore the time limit would be 76.881 minutes

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3 years ago

You have $50 in your bank account. You make $8 per hour mowing lawns. How many hours must you mow lawns to have a total of $130

Lynna [10]

First you find how much you need to make
130 - 5 = 80

now simply divide that by the amount earned per hour
80 ÷ 8 = 10

$10 \: hours$

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3 years ago

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