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Anestetic [448]
2 years ago
14

Astrid travels 130 km in 2 hours and then at 85 km/h for another 3 hours to reach her

Mathematics
1 answer:
Pie2 years ago
4 0

Answer:

\huge\boxed{\sf Speed = 77\ km/hr}

Step-by-step explanation:

<h3><u>Formula to be used in the question:</u></h3>
  • Speed = Distance / Time
<h3><u>Distance for the first 2 hours:</u></h3>

= 130 km

<h3><u>Distance for the next 3 hours:</u></h3>

Speed = 85 km/h

Time = 3 hours

So,

Distance = Speed × Time

Distance = 85 × 3

Distance = 255 km

So,

<h3><u>Total distance from home to destination:</u></h3>

= 130 + 255

= 385 km

<h3><u>Speed on the return journey:</u></h3>

Total distance = 385 km

Time = 5 hours

Speed = Distance / Time

Speed = 385 / 5

Speed = 77 km/hr

\rule[225]{225}{2}

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Anyhoot, you can multiply 1.5 by 0.75 to find the time. And you can multiply by 60 to get 67.5 minutes, aka, 1.125 hours
4 0
4 years ago
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Leon wants to buy a shirt that costs $80. The sales tax is 5.5%. How much is the sales tax?
GenaCL600 [577]

Answer:

4,4

Step-by-step explanation:

80×5,5%

80/1×5,5/100

4/1×5,5/5

22/5 = 4 2/5

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7 0
3 years ago
Write a two column proof
atroni [7]

Answer:

Step-by-step explanation:

Given:

TU ≅ WU

∠T ≅ ∠W

To Prove:

\overline{TS} \cong \overline{WV}

Proof:

In  Δ TUS and Δ  WUV

STATEMENT                                                 REASON

1. TU ≅ WU                                     1. Given

2. ∠T ≅ ∠W                                    2. Given

3.∠TUS ≅ ∠WUV                           3. Vertically Opposite Angles are equal

4. ΔTUS  ≅ ΔWUV                         4. Angle-Side-Angle congruence test.

5. ∴ TS ≅  WV                                 5. Corresponding parts of congruent triangles.

\overline{TS} \cong \overline{WV}.......Proved

3 0
3 years ago
On Thursday, a local hamburger shop sold a combined total of 327 hamburgers and cheeseburgers. The number of cheeseburgers sold
jeka94

Answer:

The number of hamburgers is 109.

Step-by-step explanation:

Let h = number of hamburgers

Let c = number of cheeseburgers

The total number sold gives us the equation below.

h + c = 327

"The number of cheeseburgers sold was two times the number of hamburgers sold.

This gives us the equation

c = 2h

Now we substitute c with 2h in the first equation and solve for h.

h + 2h = 327

3h = 327

h = 109

The number of hamburgers is 109.

5 0
3 years ago
Given f(x)=-4+1 find f(2)
AleksAgata [21]
I think you left out something, is it -4x+1
8 0
3 years ago
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