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maks197457 [2]
2 years ago
11

Okay so I’m stuck on 5. It says “ 10% of __ is 7” what’s the __ answer?

Mathematics
2 answers:
stepan [7]2 years ago
7 0

Answer:

70

Step-by-step explanation:

Okay so 10%=0.1. let's say that mystery number is x

that means that 0.1x=7

now to solve for x we need to multiply both sides of the equal sign by 10

so.....x=7*10=70        

Marat540 [252]2 years ago
3 0
10% of 70 is 7
.1 times 70 is 7
so the answer should be 70
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Write the exact value of the side length of each square. If the value is not a whole number, estimate the length.
Savatey [412]

Given:

The area of the squares are given.

To find:

The exact side length or estimate side length of the square.

Solution:

We know that, the area of a square is

A=a^2

Where, a is the side length of the square.

a=\sqrt{A}

Area of the square is 100 square units. So, the side length is:

a=\sqrt{100}

a=10

Therefore, the side length is 10 units.

Area of the square is 95 square units. So, the side length is:

a=\sqrt{95}

It is not exact. We know that \sqrt{81}.

Therefore, the side length is between 9 and 10.

Area of the square is 36 square units. So, the side length is:

a=\sqrt{36}

a=6

Therefore, the side length is 6 units.

Area of the square is 30 square units. So, the side length is:

a=\sqrt{30}

It is not exact. We know that \sqrt{25}.

Therefore, the side length is between 5 and 6.

8 0
3 years ago
ALGEBRA evaluate each eapression if x= -3, y=8, and z=-12<br> y-10 <br> 12-z<br> 3-x<br> z-24
Vinvika [58]

Answer:

  • -2
  • 24
  • 6
  • -36

Step-by-step explanation:

Put the numbers in place of the corresponding letter and do the arithmetic.

  y -10 = 8 -10 = -2

  12 -z = 12 -(-12) = 24

  3 -x = 3 -(-3) = 6

  z -24 = -12 -24 = -36

6 0
3 years ago
Find a Cartesian equation for the curve and identify it. r=8tanxsecx
ANTONII [103]
R = 8 tan(x) sec(x)

In order to solve this, we are going to use the following:
r = sqrt(x^2 + y^2) //but in this case, we don't need this.
tan(x) = Y / X
X = r cos(x)
Y = r sin(x)

<span>(r cos x)^2 = 8(r sin x)</span>

x^2 = 8y
3 0
3 years ago
Find the midpoint of (1, 3) and (6, 5)
olasank [31]

Answer:

(3.5, 4)

Step-by-step explanation:

add and then divide (x1+x2 / 2, y1 + y2 / 2) so [(1+6)/2, (3+5)/2], so (3.5, 4)

5 0
3 years ago
2x + y = 4<br> y = 32 – 1<br> Is (1, 2) a solution to both equations?
Digiron [165]

Answer:

No

Step-by-step explanation:

y = 32 – 1 is  not true to (1,2) because y=2 and 2 does not equal 31.

6 0
2 years ago
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