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3 years ago

I just need help on number 7 and 11

Mathematics

2 answers:

Len [333]3 years ago

5 0

7. Your answer should be greater then 48 because 45.3+3.21 equals 48.51 11. It is important to keep the decimals lined up when adding or subtracting fractions because if you don’t line them up no digit will place value for one of the numbers .

coldgirl [10]3 years ago

3 0

45.3+3.21=48.51 which is greater than,its important to add the decimals because u would never know with what number your working with on decimal occasions.

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Find GCF of 40 and 120

vagabundo [1.1K]

Answer:

Hi there!

The GCF of 40 and 120 is 40

40 ÷ 40 = 1

120 ÷ 40 = 3

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2 years ago

A recipe that yields 12 cups of soup calls for 28 ounces of beef broth how many ounces of beef broth do you need to make 18 cups

Genrish500 [490]

Answer:

Step-by-step explanation:

for one cup 28/12

for 18 cup,

(28/12)×18

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2 years ago

The density d kg/m3 of a cube of mass m kilograms and side length x meters is given by the formula: What is the value of d if

bearhunter [10]

Answer:

5000kg/m3

Step-by-step explanation:

Its easy to get the answer of a question from the unit.

So, it will be mass over metre cube.

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3 years ago

Write the standard form of the equation of the circle with the given characteristics.

SOVA2 [1]

<h2><u>Circle Equations</u></h2>

<h3>Write the standard form of the equation of the circle with the given characteristics.</h3><h3>Center: (0, 0); Radius: 2</h3>

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<u>(h, k)</u> is the center; and
<u>r</u> is the radius

Substitute the values of the center and radius to the standard form.

<u>Given:</u>

<u>(0, 0)</u> - <u>center</u>

<u>2</u> - <u>radius</u>

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2 years ago

If a plane can travel 490 miles per hour with the wind and 430 miles per hour against the wind, find the speed of the wind and

zavuch27 [327]

let the speed of plane in still air be x and that wind be y

therefore:

x+y=490

x-y=390

next we solve for the values of x and y, first we add the above equations. This will give us:

2x=880

x=880/2

x=440 miles per hour.

substituting the value of x in one of the equations and solving for y we get:

440+y=490

y=490-440

y=50 miles per hour

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3 years ago