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3 years ago

Pick all of correct solutions 1/5+3/5+5/2

Mathematics

2 answers:

vazorg [7]3 years ago

8 0

• 69/20
• 3 9/20
-I can’t see the last one but i’m pretty sure those are the only two

Ilia_Sergeevich [38]3 years ago

6 0

Answer:69/20

Step-by-step explanation:

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A washer and dryer cost 1003 combined the washer cost 53 more than dryer what’s the cost of dryer

NeX [460]

Answer:

475

Step-by-step explanation:

Let's call the dryer price is x

Then, the price for the washer is 53 more than the dryer, it would be: x+53

Total price of washer and dryer = 1003

We get the equation:

x+(x+53) = 1003

2x + 53 = 1003

2x + 53 - 53 = 1003 - 53

2x = 950

x = 475

The dryer price is 475

Extra: you can find the cost of the washer by using x+53 = 475+53 = 528

4 0

3 years ago

Can someone please help me with this problem!

Anna71 [15]

Answer:

11 yards

Step-by-step explanation:

The volume of a cone formula is:

$V=\frac{1}{3}\pi r^2 h$

Where V is the volume,

r is the radius (half of diameter)

h is the height

Given,

h = 15

V = 475.17

We find the radius (r) first by substituting given values:

$V=\frac{1}{3}\pi r^2 h\\475.17=\frac{1}{3}\pi r^2 (15)\\475.17=5\pi r^2\\r^2=30.25\\r=5.5$

The radius (r) is 5.5 yards

We need the diameter, which is DOUBLE THE RADIUS, so diameter would be:

Diameter = 5.5 * 2 = 11 yards

8 0

3 years ago

kevin uses a coupon for 75% off one item. he only pays $3.00 for a train set. how much money was the train set originally?

Natalka [10]

Answer:

$4.00

Step-by-step explanation:

75% of 4

75% × 4 =

75/100 × 4 =

(75 ÷ 100) × 4 =

75 × 4 ÷ 100 =

300 ÷ 100 =

= 3

Hope this helps.

3 0

3 years ago

Which represents the solution(s) of the system of equations, y = x2 – 2x – 15 and y = 8x – 40? Determine the solution set algebr

Elden [556K]

Answer:

<u>Therefore, the value of x is 5.</u>

Step-by-step explanation:

We can match each equation to find the solutions.

$8x-40=x^{2}-2x-15$

$0=x^{2}-2x-8x-15+40$

$x^{2}-10x+25=0$

Now, we need solve this quadratic equation.

$(x-5)^{2}=0$

<u>Therefore, the value of x is 5.</u>

<u />

I hope it helps you!

5 0

3 years ago

9x-3.3=6.8+8x what is x

trasher [3.6K]

Answer:

Step-by-step explanation:

$9x-3.3=6.8+8x\qquad\text{add 3.3 to both sides}\\\\9x-3.3+3.3=6.8+3.3+8x\\\\9x=10.1+8x\qquad\text{subtract 8x from both sides}\\\\9x-8x=10.1+8x-8x\\\\x=10.1$

7 0

4 years ago