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Margarita [4]
3 years ago
10

Stefan sells Jin a bicycle for ​$152 and a helmet for ​$.16 The total cost for Jin is 140​% of what Stefan spent originally to b

uy the bike and helmet. How much did Stefan spend​ originally? How much money did he make by selling the bicycle and helmet to​ Jin?
Mathematics
1 answer:
vodka [1.7K]3 years ago
8 0

Answer:

The answer is 28 more he sold it for.

Step-by-step explanation:

152+16=168. 168-140=28

I hope this helped have a good day!!

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Two lines or equations are described in each part. Decide whether each system has one solution, no solution, or infinitely many
Vedmedyk [2.9K]
It has no solution bc there or no point and because its not the same line 
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3 years ago
The volume V of a cylinder is computed using the values 8.8m for the diameter and 5.8m for the height. Use the linear approximat
Delvig [45]

Answer:

The maximum error is approximately Ev=24%

Step-by-step explanation:

the volume of the cylinder V is

V= π/4*H*D²

where H= height and D= diameter

the variation of V will be

dV = (∂V/∂H)*dH + (∂V/∂D)*dD

dV = π/4*D²*dH  +π/2*H*D*dD

if we divide by the volume V

dV /V  = (π/4*D²*dH  +π/2*H*D*dD )/( π/4*H*D²) = dH/H + 2*dD/D

dV /V =  dH/H + 2*dD/D

then we can approximate

error in V= Ev= ΔV/V ≈ dV/V

error in H= Eh=ΔH/H ≈ dH/H

error in D= Ed=ΔD/D ≈ dD/D

thus

Ev= Eh + 2*Ed

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Ev=  Eh + 2*Ed =3*E=3*8%=24%

Ev= 24%

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5 0
3 years ago
1. what is the area of the board shown on the scale drawing? explain how you found the area.2. how can Adam use the scale factor
bixtya [17]

Answer:

1. 1800 square cm.

2. See below

3. 45000 square cm.

Explanation:

Part 1

The dimensions of the drawing are 36cm by 50cm.

\begin{gathered} \text{The area of the board}=36\times50 \\ =1800\operatorname{cm}^2 \end{gathered}

Part 2

Given a scale factor, k

If the area of the scale drawing is A; then we can find the area of the actual board by multiplying the area of the scale drawing by the square of k.

Part 3

\begin{gathered} \text{Area of the scale drawing}=1800\operatorname{cm}^2 \\ \text{Scale Factor,k=5} \end{gathered}

Therefore, the area of the actual drawing will be:

\begin{gathered} 1800\times5^2 \\ =45,000\operatorname{cm}^2 \end{gathered}

7 0
1 year ago
Pls help me and i mark u as brainlist
raketka [301]

Answer:

the fourth one, H

6 0
3 years ago
Find −2310+425. Write your answer as a mixed number in simplest form.
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2 years ago
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