MATHEMATICS HIGH SCHOOL

If you have 16×18, and you double it and then halve it, what do you get? a) 16×9 b) 18×9 c) 8×9 d) 9×8

Answers

Answer 1
Answer:

Answer:

none of the answers

Step-by-step explanation:

16x8=128 and if you double it and half it, it would still be 128. none of the answer choices equal 128.

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44 tens is the same as?

The missing number in the box is 3, find the value of X and show work please

Answers

Answer:

x=9

Step-by-step explanation:

the equal of angles in triangle is 180°

so

180 = 81 + 69 + 3x + 3

Colvert the decimal to percent: 0.272

Answers

Answer:

27.2%

Step-by-step explanation:

multiply 0.272 by 100

What is the mean? If the answer is a decimal, round it to the nearest tenth.
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Answers

Answer:

Round out to the nearest 10th say 5 it would stay 5 unlike 8 would round to 10

Step-by-step explanation:
add all the numbers together, that gets you 50 and then divide 50 by the number of numbers you added. 50/10=5 your answer is 5.

Match each fraction with its equivalent decimal number.1.2/5
2.7/20
3.3/25
4.7/10


A.0.35
B.0.7
C.0.12
D.0.4

Answers

Changing a fraction to its decimal form can be done by long division method. Dividing the denominator by its numerator will change the fraction into decimal form. Alternatively, you can use a calculator to do that for you. Below are the fractions with their decimal forms listed:

1.) 2/5 = 0.4 (D)
2.) 7/20 = 0.35 (A)
3.) 3/25 = 0.12 (C)
4.) 7/10 = 0.7 (B)

Answer:

Answer:

68 km/hr,3 hrs

Step-by-step explanation:

340/5 km=68 km

204 km/68 km=3 hrs

Step-by-step explanation:

O is the center of the circle. Assume that lines that appear to be tangent are tangent. What is the value of x?

Answers

Answer:

\boxed{\boxed{x^(\circ)=78^(\circ)}}

Step-by-step explanation:

Given that, O is the center of the circle and PQ is a tangent to the circle at point Q. OQ is a radius of the circle.

We know that, a tangent to a circle is a line which just touches the circle. And the angle between the tangent and radius is 90°.

Hence, ΔOQP is a right angle triangle. We know that the sum of the measurements of all the 3 angles of a triangle leads to 180°. So,

\Rightarrow m\angle O+m\angle Q+m\angle P=180^(\circ)

\Rightarrow x^(\circ)+90^(\circ)+12^(\circ)=180^(\circ)

\Rightarrow x^(\circ)=180^(\circ)-90^(\circ)-12^(\circ)=78^(\circ)
Angle q is right angle so you would first do 12+90=102 then you would do 180-102=78 so x=78

Jina reads 30 chapters of a book in 6 hours. What is her rate in chapters per hour?

Answers

Answer:

providing structure, regulating cell processes and creating movement. Proteins are large molecules consisting of one or more polypeptide chains. They perform many important functions in the body such as: Structural base: they are the building blocks of the cell.

Step-by-step explanation:
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