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tino4ka555 [31]
3 years ago
6

Evaluate the expression x−2×8, if x = 27.8

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
7 0

Answer:

11.8

Step-by-step explanation:

the answer is above hope it helps. mark me as brainlist plz

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A real estate broker's base salary is $18,000. She earns a 4% commission on total sales. How much must she sell to earn $55,000
VladimirAG [237]

The salary of the real estate broker = $18,000

Commission earned on total sales = 4% or 0.04

Total income earnings = $55,000

Let the total sales be = x

Equation becomes :

18000+0.04x=55000

0.04x=55000-18000

0.04x=37000

x=925000

Hence, the real estate broker must sell $925,000 worth of real estate to earn $55,000.

5 0
4 years ago
Keith wants to triple a recipe for chocolate milk. The original recipe call for 8 oz of milk and 3 teaspoons of chocolate mix. H
jolli1 [7]

Answer: 9 teaspoons

Step-by-step explanation:

To triple the recipe, multiply the amount of chocolate mix by 3.

3 x 3 = 9 teaspoons.

hope this helps

8 0
3 years ago
D1 = 35 m
olasank [31]
A=1/2d1d2
plug in
a=1/2(35)(12)
a=210
4 0
4 years ago
The lifetimes of a certain type of calculator battery are normally distributed. The mean lifetime is 400 days, with a standard d
Licemer1 [7]

Complete question :

The lifetimes of a certain type of calculator battery are normally distributed. The mean lifetime is 400 days, with a standard deviation of 50 days. For a sample of 6000 new batteries, determine how many batteries will last: 360 and 460 days

Answer:

0.67307

Step-by-step explanation:

Given that :

Mean, m = 400

Standard deviation, s = 50

Sample size, n = 6000

Obtain the standardized score :

Zscore =(x - m) / s

For X = 360

P(x < 360)

Zscore =(360 - 400) / 50

Zscore = - 40 / 50

Zscore = - 0.8

P(Z < - 0.8) = 0.21186

For X = 460

P(x < 460)

Zscore =(460 - 400) / 50

Zscore = 60 / 50

Zscore = 1.2

P(Z < 1.2) = 0.88493

P(Z < 1.2) - P(Z < - 0.8)

0.88493 - 0.21186

= 0.67307

5 0
3 years ago
Write a real world problem that involves a percent then model the percent used in the problem
s344n2d4d5 [400]
You go to a restaurant and your bill is $35.00. Your service was excellent so you leave a 20% tip. What was the total amount paid for the bill including the tip?

10%=$1 for every $10
15%=$1.50 for every $10
20%=2% for every $10

10% of the bill would be $3.50(move the decimal to the tens place)
15% of the bill would be $5.25( halve the 10% and add it to the original 10% tip; $3.50+$1.75)
20% of the bill would be $7.00(double the 10% tip)
7 0
4 years ago
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