Write the sum and the expression in standard form. − − 11 and the opposite of −11

Solve the inequality -24 less than or equal to x-3-8x

AleksAgata [21]

The value of X is 3.

6 0

4 years ago

Lawrence sells 40% of the apples on his cart, and are left with 420 apples. How many apples had Lawrence started with?

lutik1710 [3]

Answer:

700 apples

Step-by-step explanation:

Let

x = Total number of apples in the cart

Percentage of apples sold = 40%

Number of apples sold = Percentage of apples sold * Total number of apples in the cart

= 40% * x

= 0.4 * x

= 0.4x

Number of apples left in the cart = 420

Total number of apples in the cart = Number of apples sold + Number of apples left in the cart

x = 0.4x + 420

x - 0.4x = 420

0.6x = 420

x = 420/0.6

x = 700

x = Total number of apples in the cart = 700

Lawrence started with 700 apples

4 0

3 years ago

Help me asap please!

sveta [45]

Answer:

Earths moon:

Scientific: 7.35x10^22

Standard:73500000000000000000000

for the rest im only going to give you the scientific method

Mercury: 3.205x10^23

Venus 4.867x10^24

Jupiter 1.898x10^27

Saturn 5.683x10^26

Uranus 8.681x10^25

Neptune 1.024x10^26

Phobos 10.6x10^15

Ariel 1.27x10^21

Titan 1.3452x10^23

I hope this helps

4 0

3 years ago

4-2x divided by 5 plus 3 =9

choli [55]

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5 0

3 years ago

Read 2 more answers

An environmentalist wants to find out the fraction of oil tankers that have spills each month. Suppose a sample of 836 tankers i

Alexxandr [17]

Answer:

The 99% confidence interval for the population proportion of oil tankers that have spills each month.

(0.6489 , 0.7311)

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 836

Suppose a sample of 836 tankers is drawn. Of these ships, 577 did not have spills.

sample proportion

$p^{-} = \frac{x}{n} = \frac{577}{836} = 0.690$

The 99% confidence interval for the population proportion is determined by

$(p^{-} - Z_{0.01} \sqrt{\frac{p(1-p)}{n} } , p^{-} + Z_{0.01} \sqrt{\frac{p(1-p)}{n} })$

Step(ii):-

The Z- value = 2.576

$(0.690 - 2.576 \sqrt{\frac{0.690(1-0.690)}{836} } , 0.690 + 2.576 \sqrt{\frac{0.690(1-0.690)}{836} })$

On calculation , we get

(0.690 - 0.0411 , 0.690 + 0.0411)

(0.6489 , 0.7311)

Final answer:-

The 99% confidence interval for the population proportion of oil tankers that have spills each month.

(0.6489 , 0.7311)

8 0

4 years ago