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3 years ago

Solve for x to the nearest tenth I WILL MARK BRAINLIEST.

Mathematics

1 answer:

VikaD [51]3 years ago

3 0

(You will definitely not mark brainliest)
Look at the pictures.

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Gas mileage is the number of miles you can drive on one gallon of gas. A test of a Nissan car results in 450 miles on 10 gallons

Ratling [72]

A. 45 miles per gallon of gas
B. 2700 miles

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3 years ago

What is the product of (-1/4)x(-3/7)

Oksana_A [137]

Answer: Multiply from left to right.

(-3/4)(-4/7)(-2/3)

3/7(-2/3)

-2/7

Step-by-step explanation:

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3 years ago

If sum of two no is 21 and sum of their square is 256 find the number

polet [3.4K]

Step-by-step explanation:

you're going to solve for y in the first equation and then substitute it in for the second equation and solve.

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3 years ago

A cookie recipes call for 2 3/4 cups of flour and 2 1/2 cups of sugar. Will you be using more flour or sugar to bake the cookies

Ghella [55]

More flour cause you put the fractions over the same denominator and change to an improper fraction to get 2 3/4 = 11/4 and 2 1/2 = 5/2 = 10/4 and 11/4 is greater than 10/4.

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3 years ago

How many bucketloads would it take to bucket out the world’s oceans? Write your answer in scientific notation.

kodGreya [7K]

Answer: $7\times10^{19} buckets$

Step-by-step explanation:

Given: A cubic kilometer= $10^{15}$ cubic centimeters

The volume of world’s oceans= $1.4\times10^{9}$ cubic kilometers of water.

⇒ The volume of world’s oceans= $1.4\times10^{9}\times10^{15}$ cubic centimeters of water.

Volume of a bucket = 20,000 cubic centimeters of water.

The number of bucket-loads would it take to bucket out the world’s oceans

$n=\frac{\text{volume of ocean}}{\text{volume of bucket}}=\frac{1.4\times10^{9}\times10^{15}}{20000}$

$\Rightarrow\ n=\frac{1.4\times10^{9+15}}{0.2\times10^5}......[a^n\times a^m=a^{m+n}]\\\Rightarrow\ n=7\times10^{24-5}.....[\frac{a^m}{a^n}=a^{m-n}]\\\Rightyarrow\ n=7\times10^{19}$

hence, $7\times10^{19}$ bucketloads would it take to bucket out the world’s oceans.

5 0

3 years ago