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Ksivusya [100]
3 years ago
10

First person to answer both of these will get 10 points and Brainliest. But your answer has to be correct!​

Mathematics
2 answers:
AlladinOne [14]3 years ago
6 0

Answer:

a. 7/2  OR  3 1/2     Either answer should be acceptable

b. 82/15   OR  5 7/15   Either answer should be acceptable

Step-by-step explanation:

a. 5 3/4 =  so first multiply the denominator, 4, by the whole number 5 so 4 x 5 is equal to 20. Add this to your numerator, 3.

20 + 3 = 23 so the new fraction is 23/4

Same thing with 2 1/4     4 x 2 = 8 + 1 = 9    9/4

23/4 - 9/4 = 14/4 simplify this to 7/2

b. Same process here:

7 2/3      3 x 7 = 21 + 2 = 23      23/3

2 1/5       5 x 2 = 10 + 1 = 11        11/5

This time, we need a common denominator

3 x 5 = 15

5 x 3 = 15

23/3 x 5/5 = 115/15

11/5 x 3 = 33/15

115/15 - 33/15 = 82/15

Gnoma [55]3 years ago
4 0

Answer:

The correct answer to a is 3 1/2 same answer for the other answer.

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Find the y-intercept of each exponential function and order the functions from least to greatest y-intercept.
kvv77 [185]

Answer:

Keep the exact order that is shown

Step-by-step explanation:

The first exponential already has a point at (1, -2) which means the y-intercept would be less than -2, which is the lowest among the three


The second has a y-int at -2

Third has y-int at 2

4 0
3 years ago
A plane traveled 240 miles. The trip was with the wind. It took 3 hours. The trip back was into the wind. The trip back took 6 h
sveta [45]

Answer:

Plane speed is 60 miles/hour

Wind speed is 20 miles/hour

Step-by-step explanation:

Lets suppose the speed of the plane in still air is s and speed of the wind is w and since speed in the formula below equals speed of the plane plus the wind's speed so speed=s+w for this journey with the wind

Speed=\frac{Distance}{Time}

Distance=Speed*Time

For the first journey the trip with the wind:

Distance=Speed*Time\\240=(s+w)(3)\\240/3=s+w\\s+w=80

Here we got our first equation for the second equation we use the information from the second trip which was into the wind. Which means the speed here would be speed=s-w

Distance=Speed*Time\\240=(s-w)*6\\240/6=s-w\\s-w=40

so now we got our two equations adding both equations would result into the following:

s+w=80\\s-w=40\\2s=120\\s=60

so speed of the plane is 60 miles/hour put the value of s in any our two equations to calculate the wind speed, lets take the first equation:

s+w=80\\60+w=80\\w=80-60\\w=20

so the wind speed is 20 miles/hour

8 0
3 years ago
I need help please! I uploaded a photo.
KATRIN_1 [288]
I can't do math sorry:((
5 0
3 years ago
Oliver runs for 9 more minutes than Bobby.
valentina_108 [34]
The answer is C 24 if you plug in 33 33 = 9 + b you have to subtract the 9 over to 33 to get 24
3 0
3 years ago
Read 2 more answers
Plz help!! Brainleist answer will be given if explanation is performed
wariber [46]

Answer:

x = 76 roses

Step-by-step explanation:

Step 1: Define variables

x = # of roses

y = # of tulips

Step 2: Write systems of equations

x = 4y + 8

5x + 2y = 414

Step 3: Use Substitution

5(4y + 8) + 2y = 414

20y + 40 + 2y = 414

22y = 374

y = 17

Step 4: Plug in <em>y</em> to find <em>x</em>

x = 4(17) + 8

x = 68 + 8

x = 76

5 0
3 years ago
Read 2 more answers
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