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3 years ago

Please solve:12−3∙(5+x)= Thanks!

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

8 0

Answer:

-3-3x

Step-by-step explanation:

12−3∙(5+x)=

We can simplify this expression

Distribute

12 -3*5 -3*x

Combine like terms

12-15 -3x

-3-3x

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kayden paddled a canoe to an island. the island is 8 miles from the shore. his trip to the island took two hours while paddling

Andrew [12]

Answer:

$2\text{ mph}$

Step-by-step explanation:

GIVEN: kayden paddled a canoe to an island. the island is $8$ miles from the shore. his trip to the island took two hours while paddling against the current. he paddles $6$ mph with no current.

TO FIND: what was the speed of the current.

SOLUTION:

distance of island from the shore $=8$ miles

total time taken by Kayden $=2$ hours

speed of Kayden in still water $=6\text{ mph}$

Let the speed of current be $x$

Speed of Kayden against current $=6-x\text{ mph}$

As,

$\text{Time}=\frac{\text{Distance}}{\text{speed}}$

$2=\frac{8}{6-x}$

$12-2x=8$

$x=2\text{ mph}$

Hence speed of current is $2\text{ mph}$

7 0

3 years ago

the ad giants baseball tearm has 20% of its 40 players that are left handed.how many left handed are their

dolphi86 [110]

8 are left handed bc 20% of its 40 is 0.2×40 =8

3 0

3 years ago

In TUV below, find m T to the nearest degree

Andre45 [30]

Answer:

T = 88 degrees to the nearest degree

Step-by-step explanation:

To find the measure of the angle T, we can use the cosine rule

We have the formula as;

t^2 = u^2 + v^2 - 2uv Cos T

t = 8.1

u = 7.1

v = 4.2

8.1^2 = 7.1^2 + 4.2^2 - 2(7.1)(4.2) cos T

-2.44 = -59.64 cos T

cos T = (2.44)/(59.64)

T = arc cos (2.44/59.64)

T = 87.66

to the nearest degree, this is 88 degrees

7 0

3 years ago

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4, 6, 2, 8, 4, 4, 2, 10<br> Mean:<br> Median:<br> Mode:

Troyanec [42]

Answer:

Mean: 5

Median: 4

Mode: 4

Step-by-step explanation:

Mean:

1. To find the mean given a data set, you have to add up all the data points and then divide them by the number of data points there is.

$\frac{4+6+2+8+4+4+2+10}{8}$
$\frac{40}{8}$
$5$

Therefore, the mean is 5.

Median:

1. To find the median given a data set, we first have to arrange the data points in order.

$2, 2, 4, 4, 4, 6, 8, 10$

2. Next, we have to find which data point is in the middle. In this case, the middle number is 4.

Therefore, the median is 4.

Mode:

1. To find the mode given a data set, you just have to find which data point is the most frequent.

1 data point of 2
3 data points of 4
1 data point of 6
1 data point of 8

1 data point of 10

Because the most frequent value is 4, the mode is 4.

6 0

3 years ago

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A line passes through the point (6,-6) and has a slope of 3/2. Write a equation in point-slope form for this line

Maru [420]

Answer: $y+6=\frac{3}{2} (x-6)$

Step-by-step explanation:

use the equation $y-y_{1} =m(x-x_{1})$

we know the slope, y, and x, so plug in

$y-(-6)=\frac{3}{2} (x-(6))$

$y+6=\frac{3}{2} (x-6)$

8 0

3 years ago

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