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sveticcg [70]
3 years ago
11

Please help I’ll mark you as brainliest if correct

Mathematics
2 answers:
DedPeter [7]3 years ago
7 0

Answer:

According to me the correct answer is the last one (12 out of the 32 marbles will be blue).

lara [203]3 years ago
3 0
11 yeah Mark branliest
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A motorcycle traveling at 70 miles per hour overtakes a car traveling at 40 miles per hour that had a three-hour head start. How
Schach [20]

A motorcycle traveling at 70 miles per hour overtakes a car traveling at 40 miles per hour that had a three-hour head start. How far from the starting point are the two vehicles.

----------------------

The car is 120 miles away when the motorcycle starts.

The bike gains on the car at 30 mph (70-40).

It takes 4 hours for the bike to close the gap (120/30).

In 4 hours, the bike and the car are 280 miles from the starting point.

---------

4*70 = 280

7*40 = 280

Since Distance = Speed x Time, and in this case, the distances are equal, we, therefore, have: 70T = 40(T + 3)

70T = 40T + 120

30T = 120

T=4, which makes the distance that both vehicles traveled, highlight_green280miles, calculated as (70 * 4), or (40 * 7).

It also means that the motorcycle took 4 hours to travel 280 miles, and the car took 3 hours more, or 7 hours to travel the same distance.

Learn more about Distance:

brainly.com/question/12356025

#SPJ4

4 0
2 years ago
If f(x)=2x+4 and g(x)=3x-7; then find (f+g)(4)
Arisa [49]
2x+4 +3x-7
5x-3(4)
(f+g)(4)=20x-12
5 0
3 years ago
What is the solution to the equation below?<br> log 20x3 - 2log x=4
andrey2020 [161]

Answer:

x=500

Step-by-step explanation:

To solve the equation given, we will follow the steps below:

log 20x³ - 2log x=4

using the law of logarithm,

2log x = log x²

so, our equation becomes;

log 20x³ - log x²=4

Also using another law of logarithm;

log 20x³ - log x² = log (20x³/x²)

our equation becomes;

log (20x³/x²) = 4

log 20x = 4

from the definition of logarithm, logarithm is the power of the exponential

10⁴ = 20 x

10000 = 20x

divide both-side of the equation by 20

10000/20 = 20x/20

at the right-hand side of the equation 20 will cancel-out 20 leaving us with just x  and the left-hand side of the equation, 10000 will be divided by 20

500 = x

x = 500

8 0
4 years ago
(First correct answers get brainliest or a lot of points)
docker41 [41]

Answer:

I believe that it is −1.3622188906

8 0
3 years ago
In the cafeteria 100 milk cartons were put out for breakfast. After breakfast there were 40 milk cartons left. What is the ratio
cupoosta [38]

Answer:

The ratio of milk cartons left over to milk cartons taken is <u>2:3.</u>

Step-by-step explanation:

Given:

In the cafeteria 100 milk cartons were put out for breakfast.

After breakfast there were 40 milk cartons left.

Now, to find the ratio of milk cartons left over to milk cartons taken.

Total cartons of milk put out for breakfast = 100.

<em>Cartons of milk left over after breakfast = 40.</em>

So, to get the cartons of milk taken by subtracting cartons of milk left after breakfast from total cartons of milk put out for breakfast:

100-40\\\\=60.

<em>Thus, cartons of milk taken for breakfast = 60.</em>

Now, to get the ratio of milk cartons left over to milk cartons taken:

40:60

=\frac{40}{60}

<em>On simplifying it:</em>

=\frac{2}{3}

=2:3.

Therefore, the ratio of milk cartons left over to milk cartons taken is <u>2:3.</u>

6 0
3 years ago
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