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3 years ago

Solve 15x2÷6×18-5+70-18+23

Mathematics

2 answers:

tankabanditka [31]3 years ago

8 0

Answer is: 160 with

lesya [120]3 years ago

3 0

15 * 2 / 6 * 18- 5 + 70 - 18 + 23 =
30/6 * 18 - 5 + 70 - 18 + 23 =
5 * 18 - 23 + 93 =
90 - 23 + 93 =
183 - 23 =
160 <==

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A big department store employs a total of 180 people. of these 180 people, 27 are managers, 100 are floor assistants, and the re

PilotLPTM [1.2K]

Among 180 people 27 are managers, 100 are floor assistants and the rest are helpers. Under the rest we mean 180-27-100=53 people.

The event "randomly selected employee is not a floor assistant" is the same as "randomly selected employee is manager or helper". You can count that in total 27+53=80 people form the set of managers and helpers.

Then the probability that randomly selected employee is not a floor assistant is

$Pr=\dfrac{80}{180}=\dfrac{4}{9}.$

Answer: $Pr=\dfrac{4}{9}.$

6 0

3 years ago

ASAP help me with this ty!

iren2701 [21]

Answer:

96 degrees

Step-by-step explanation:

The angle bisectors splits the two angles mentioned down the middle so the 2 angles are equal to each other.

4x + 4 = 2(x + 13) Distribute the 2

4x + 4 = 2x + 26 Subtract 2x from both sides

2x + 4 = 26 Subtract 4 from both sides

2x = 22 Divide both sides by 2

x = 11 Plug that back into either the right side or the left side of the original equation

4x + 4

4(11) + 4

44 + 4

48. Each angle is 48 degrees. 48 + 48 is 96

4 0

2 years ago

Vincente and ricarda perez have invested $27,000 in bonds paying 7%. How much additional money should they invest in a certifica

IgorC [24]

Invested amount = $27,000

Interest is getting 7% on $27,000 of bonds.

Let us assume additional money should invest = $x.

Interest payed on additional money invested = 4%.

Total money invested = 27,000 + x.

Total interest on both amount should be equal to = 6%.

We can setup an equation as

7% of starting invested amount + 4% of additional invested amount = 6% of total invested amount.

0.07 * 27,000 + 0.04 x = 0.06(27,000+x).

On simplifying, we get

1890 +0.04x = 0.06(27000+x).

Distributing 0.06 over (27000+x), we get

1890 +0.04x = 1620 +0.06x

Subtracting 0.04x from both sides, we get

1890 +0.04x-0.04x = 1620 +0.06x - 0.04x

1890 = 1620 + 0.02x

Subtracting 1620 on both sides

1890 -1620 = 1620 -1620 + 0.02x.

270 = 0.02x.

Dividing both sides by 0.02, we get

270/0.02 = 0.02x/0.02

13500 = x.

Therefore, $13500 is the additional money should they invest.

8 0

3 years ago

Your cousin gave you $9 to buy a present with.

Roman55 [17]

Answer,

9/3 = 3

3 x 5 = 15

Hope this helps :-)

7 0

3 years ago

Can someone help me

JulsSmile [24]

The y-intercept is the y-coordinate of the point that has zero as its x-coordinate.

First, we find the y-intercept of function f.

f(x) = 3x - 9

Let x = 0, and solve for f(0).

f(0) = 3(0) - 9

f(0) = -9

The y-intercept of function f is -9.

Now we find the y-intercept of function g.

We are told that both functions are linear, so equal changes in x produce equal changes in y. Look at these two points in function g: (3, 10) and (4, 14).

As x goes from 4 to 3, y goes from 14 to 10. When x is 1 less than it was, the corresponding y is 4 less than it was. That allows us to find the y-coordinate when x = 0. When x = 1, y = 2. By subtracting 1 from x, you must subtract 4 from y, so when x = 0, y = -2. That gives us point (0, -2). The y-intercept of function g is -2.

Now we subtract the y-intercept of f(x) from the y-intercept of g(x).

g(0) - f(0) = -9 - (-2) = -9 + 2 = -7

Answer: -7

5 0

3 years ago