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Alexxx [7]
3 years ago
7

Please help me evaluate the expression 10a + 7 if a =1/5

Mathematics
1 answer:
sattari [20]3 years ago
6 0

Answer:

9

Step-by-step explanation:

10a+7

<u>10(1/5)</u> + 7

<u>2+7</u>

9

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Complete the statement with equal to greater than or less than 5/5 * 2 3/4​
Westkost [7]

5/5*2 3/4 > 2 3/4

hope this helps :)

3 0
3 years ago
The area of the surface of a sphere is described by the formula S=4(3.14)r^2. The earth has a radius of 3960 miles and dry land
Stella [2.4K]

Answer: 57,512,581.63miles^2

Step-by-step explanation:

Substitute the value of the radius of the Earth into the formula given in the problem, where r is the radius, to obtain the surface area of the Earth:

S=4(3.14)r^2\\S=4(3.14)(3,960miles)^2\\S=196,960,896miles^2

The problem says that the dry land forms 29.2% of the Earth’s surface, therefore, multiply the surface area by \frac{29.2}{100}=0.292

Threfore, the area of dry land is the following:

S_{land}=(0.292)(196,960,896miles^2)=57,512,581.63miles^2

8 0
3 years ago
What is the solution to the system of equations?
gizmo_the_mogwai [7]
The solution to the system of equation is
(- 3,5,6)
8 0
3 years ago
Read 2 more answers
-3 + 5 is _ units from -3, in the _ direction.
Vilka [71]
Not sure!!!!!;( next time put a pic
8 0
3 years ago
Hi I need help on one questions it is Cora has two links of ribbon one ribbon is 2 feet long. The other ribbon is 30 inches long
Assoli18 [71]

Answer:

The ribbon that is 30 inches is longer.

Step-by-step explanation:

1 foot = 12 inches

2 feet = 24 inches

30 inches > 24 inches

4 0
3 years ago
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