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Rzqust [24]
2 years ago
8

I need help on my tips for math could someone be nice and help

Mathematics
1 answer:
djverab [1.8K]2 years ago
6 0

Answer:

A im pretty sure its a try it and let me know

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Suppose that you currently own a clothes dryer that costs $35 per month to operate. A new efficient dryer costs $750 and has an
Gekata [30.6K]

Answer:

Step-by-step explanation:

Idk

8 0
3 years ago
A collection of nickels and dimes is worth $9.45. If the number of dimes is doubled, the value is
eduard

Answer:

The number of nickels is 45 and the number of dimes is 72.

Step-by-step explanation:

Let

x ----> number of nickels

y ----> number of dimes

Remember that

1\ nickel=\$0.05

1\ dime=\$0.10

so

0.05x+0.10y=9.45 ------> equation A

0.05x+0.10(2y)=16.65

0.05x+0.20y=16.65 ------> equation B

<em>Solve the system by substitution</em>

we have

0.05x+0.10y=9.45 ------> equation A

0.05x+0.20y=16.65 ------> equation B

Multiply both equations by 100 both sides

5x+10y=945 ---->5x=945-10y --> equation C

5x+20y=1,665 ----> equation D

substitute equation C in equation D

(945-10y)+20y=1,665

solve for y

945+10y=1,665

10y=1,665-945

10y=720

y=72\ dimes

Find the value of x

5x=945-10y

5x=945-10(72)

5x=225

x=45\ nickels

<em>Alternative Method</em>

Solve the system by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

the solution is the point (45,72)

therefore

The number of nickels is 45 and the number of dimes is 72.

7 0
3 years ago
Please help! (listing BRAINLIST and giving points) ​ :)​
NikAS [45]

Answer:

Tan B = 12/5

Sin B = 12/13

Cos B = 5/13

Step-by-step explanation:

sine B =  opposite (12)/hypotenuse (13)

          = 12/13

Cosine B = adjacent/hypotenuse

               = 5/13

Tangent B = opposite/adjacent

                 = 12/5

Here is a picture that can always help you with the three trig ratios.

3 0
3 years ago
Cho tập hợp A=(2;7)và tập hợp B=[7;10]tìm tập hợp a∩B
ahrayia [7]

sorry po di ko ma intindihan

Step-by-step explanation:

sorry po

6 0
2 years ago
The linear equation when b= 5 and m = -2 is O y = 5x – 2. Oy= 5x + 2. y = -2x - 5. O y = -2x + 5​
blondinia [14]

Answer:

y = -2x + 5

General Formulas and Concepts:

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define given</u>

y-intercept <em>b</em> = 5

Slope <em>m</em> = -2

<u>Step 2: Write function</u>

y = -2x + 5

5 0
2 years ago
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