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viva [34]
2 years ago
5

A train goes twice as fast downhill as it can go uphill, and 2/3 feet as fast uphill as it can go on level ground. If it goes 12

0 miles per hour downhill, how long will it take to travel 45 miles per flat
Mathematics
2 answers:
lisabon 2012 [21]2 years ago
8 0

Answer:120/2=60 speed uphill. Speed level 3/2 uphill=90 speed downhill 120 on flat land d=45=90*t t=1/2 hrs

Step-by-step explanation:

Sergeu [11.5K]2 years ago
6 0

Answer:

Step-by-step explanation:

ion know?

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Start at 200. create a pattern that multiplies each number by 2. stop when you have 5 numbers
s2008m [1.1K]

Answer:

200 → 400 → 800 → 1600 → 3200

Step-by-step explanation:

starting at 200 and multiplying by 2 until you have 5 numbers.

8 0
2 years ago
A shopkeeper sold 12 bags on the first day. The number became four times
dybincka [34]

The total number of the bags sold by the shopkeeper will be 65532.

<h3>What is number series?</h3>

The sequence formed by using the numbers is termed as the number series.So in this question from day one to day seven each day the sold items are multiplied by 4.

So the mathematical expression will be given as:

=(12\times 4^0)+(12\times 4^1)+(12\times 4^2)+(12\times 4^3)+(12\times 4^4)+(12\times 4^5)+(12\times 4^6)

=12+48+192+768+3072+12288+49152\\\\=65532

Hence the total number of the bags sold by the shopkeeper will be 65532.

To know more about number series follow

brainly.com/question/6561461

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3 0
1 year ago
A right triangle is given with a missing value of t. It is stated that the triangle is an acute right triangle with angles 50∘ a
sergiy2304 [10]

Answer: t=20°


Step-by-step explanation:

1. By definition, the sum of the interior angles is 180 degrees.

2. Keeping the information above on mind, you can write the following expression:

90+50+2t=180

3. Now, you must solve for t as following:

140+2t=180\\2t=180-140\\2t=40\\t=\frac{40}{2}\\t=20

4. Therefore, the value of t is 20°


6 0
3 years ago
James is constructing a circle circumscribed about a triangle. He has partially completed the construction, as shown below. What
Nadya [2.5K]
Answer
From the construction that James is doing the
next step that he should take would be: Use the
circumcenter to determine the center of the
circle.
How to construct a circle from a triangle
In order to construct a circle for the triangle, one
would have to find the perpendicular bisector of
all sides of the triangle.
From the established circumcenter, a pair of
compass would be used to contruct the circle.
8 0
2 years ago
Mary has 6 shells. Her friend Tina has 3 times more than Mary. How many shells do the girls have together?
Mamont248 [21]

18 shells because since Mary has 6 and Tina has 3 shells all you have to do is multiply 6 and 3 to get 18

8 0
2 years ago
Read 2 more answers
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