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Readme [11.4K]
2 years ago
13

Y and x have a proportional relationship and y =5 when x = 4 what is the value of x when y =8

Mathematics
2 answers:
mart [117]2 years ago
8 0
Y = kx
k = y / x = 5/4 = 1.25
so
<span>y =8 then
8 = 1.25 x
x = 8/ 1.25  = 6.4

answer
x = 6.4 when y = 8</span>
Marizza181 [45]2 years ago
6 0
Y/x = 5/48/x = 5/45x = 32<span>x = 6.4

Sorry if this doesnt help</span>
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Ron is selling items at a craft show. The first hour his sales are $20. His sales grow by 10% each hour. What are Ron's total sa
olga nikolaevna [1]
C. $122.10

20 first hour
20+0.1*20 = 22 second hour
22+0.1*22 = 24.2 third hour
24.2+0.1*24.2 = 26.62 fourth hour
26.62+0.1*26.62 = 29.282 fifth hour
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5 0
3 years ago
2 questions in the 2 pictures and then im done thank you
Tamiku [17]

Answer:

Hey there!

For the first question we use the triangle area formula: 1/2bh, or 1/2(8)(5). This gives us 20 for the area.

For the second question we get a trapezoid, since the cross section does not pass through the vertex.

Hope this helps :)

3 0
3 years ago
Please help thanks in advance!!!!!
dedylja [7]

Answer:

5

Step-by-step explanation:

so 1/5 of 10 is 5 and 1/5 5 would be 1

area is LxW

so 5x1=5

6 0
3 years ago
What is the volume of the sphere given below? if necessary, round your answer to two decimal places.
Marrrta [24]
The formula for volume of a sphere is V=(4pi*r^3)/3.
Plugging in 12 for r we get
V=(4pi*(12)^3)/3
V=(4pi*1728)/3
V=(6912pi)/3
V=2304pi
Round to 2 decimal places: 7238.23
Final Answer:
7238.23 cubic units.
Hope I helped :)
6 0
2 years ago
What is the surface area of the cube shown?<br><br> 6.5 lenth 6.5 hieght
swat32

Answer:

253.5

Step-by-step explanation:

basically i had the same question so yeah! and im a pro at math

6 0
3 years ago
Read 2 more answers
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