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ivolga24 [154]
1 year ago
10

I don’t understand this, can somebody help?

Mathematics
1 answer:
Klio2033 [76]1 year ago
8 0
<h2>29)</h2><h2>quarters = 13 \\ dimes = 25 \\ nickles = 18 \\ pennies = 30 \\ total \: coins = 86</h2>

not \: penny \: or \: dime = quarter \: or \: nickle

p(x) =  \frac{13 + 18}{86}  =  \frac{31}{86}  = 0.36

<h2>30)</h2>

gallons \: for \: car \: 1 =  \frac{450}{18}  = 25 \: gal

gallons \: for \: car \: 2 =  \frac{450}{25}  = 18 \: gal

we \: need \: 25 + 18 = 43 \: gallons

43 \times 2.49 = 107.07 \: dollars

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What is the solution to this inequality?
solong [7]

Answer: x>−4

Step-by-step explanation:

Let's solve your inequality step-by-step.

6x−5>−29

Step 1: Add 5 to both sides.

6x−5+5>−29+5

6x>−24

Step 2: Divide both sides by 6.

6x/6>-24/6

<h3>x>-4</h3>
7 0
3 years ago
What is an equation of the line that passes through the point
Keith_Richards [23]

Answer:

5x - 4y = 32

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

5x - 4y = 36 ( subtract 5x from both sides )

- 4y = - 5x + 36 ( divide all terms by - 4 )

y = \frac{5}{4} x - 9 ← in slope- intercept form

with slope m = \frac{5}{4}

Parallel lines have equal slopes, thus

y = \frac{5}{4} x + c ← is the partial equation

To find c substitute (8, 2) into the partial equation

2 = 10 + c ⇒ c = 2 - 10 = - 8

y = \frac{5}{4} x - 8 ← in slope- intercept form

Multiply through by 4

4y = 5x - 32 ( subtract 4y from both sides )

0 = 5x - 4y - 32 ( add 32 to both sides )

32 = 5x - 4y, that is

5x - 4y = 32 ← in standard form

4 0
3 years ago
Read 2 more answers
Find the surface area of a right prism whose bases are equilateral triangles with side lengths of 6in. The height of the prism i
vesna_86 [32]

ANSWER

211.2 {in}^{2}

EXPLANATION

The surface area of a triangular prism is

equal to the area of two triangular faces

plus the area of the three rectangular faces.

The area of the equilateral triangle is calculated using the formula:

= 2 \times \frac{ \sqrt{3} }{4}  {s}^{2}  + 3 \times  \: bh

where s=6 is the length of one side.

and b=6 is the breadth of the rectangle and h=10 is the height of the rectangle.

Surface area

= 2 \times \frac{ \sqrt{3} }{4}  \times  {6}^{2}  + 3 \times  \: 6 \times 10

= 18\sqrt{3} + 180

=211.2square inches.

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3 years ago
What percent of 50 is 12.5
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The answer is Seventy nigka
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0.23 I think hope I help
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