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ira [324]
2 years ago
15

Which quantity is proportional to 40/8?

Mathematics
2 answers:
nataly862011 [7]2 years ago
7 0

Answer:

5

Step-by-step explanation:

Divide each side by 8 or do 40 divided by 8.

Hope this helps! Have a great day!

kakasveta [241]2 years ago
5 0

Answer:

5

Step-by-step explanation:

40/8 is 5. You can check this by multiplying 8 and 5 and seeing if it equals 40. Also, if you look at 40/8 as a fraction, you can simplify it. 40/8 = 20/4 = 10/2 = 5/1 = 5.

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If isme estimated that there are 50 students in the seventh grade class but there are actually 40 what is isme’s percent error?
Temka [501]

The percent error is 25 %

<em><u>Solution:</u></em>

Given that it is estimated that there are 50 students in the seventh grade class, but there are actually 40

<em><u>To find: percent error</u></em>

Percent error is the difference between a measured and known value, divided by the known value, multiplied by 100%

<em><u>The formula for percent error is given as:</u></em>

\text{ percent error }=\frac{\text { approximate value }-\text {exact value}}{\text { exact value }} \times 100$

Here, exact value = 40 and approximate value or estimated value = 50

Substituting the values in above formula,

\begin{aligned}&\text { percent error }=\frac{50-40}{40} \times 100\\\\&\text { percent error }=\frac{10}{40} \times 100=\frac{100}{4}=25\end{aligned}

Thus the percent error is 25 %

8 0
3 years ago
Figure ABCD is a kite
Mars2501 [29]
The kite is symmetric about line segment BD.
Therefore
AB = BC
3x + 1 = 22
3x = 22 - 1 = 21
x = 21/3 = 7

Similarly,
AD = CD by symmetry
Therefore
4x = CD
4*7 = CD
28 = CD, the required line segment

Answer: 28
4 0
2 years ago
Read 2 more answers
Please see the photo.
Andreas93 [3]

Answer:

CE and GD

Step-by-step explanation:

A secant of a circle is a line which passes through only 2 points of the circle. So it bisects the circle at exactly 2 points. BF is not a secant because even though the points are labelled there is no line passing through. The reason why GD is a secant is because there are the points G and F and a straight line runs through them so that's why it's a secant

4 0
3 years ago
Read 2 more answers
The ratio of red marbles to blue marbles in a bag is 3:4 . If there are 42 marbles in the bag. how many marbles are red?
PolarNik [594]

Answer:

18 marbles

Step-by-step explanation:

Step 1

Express the fraction of each type of marble as a function of the total number of marbles as shown;

Let;

total marbles=x

red marbles=3/(3+4)=3/7x

blue marbles=4/7 x

But x=42 marbles

The total number of marbles for each type can be expressed as;

total number of red marbles=fraction of red marbles×total number of marbles

where;

fraction of red marbles=3/7 x

total number of marbles=42

replacing;

total number of red marbles=(3/7)×42=18 marbles

total number of blue marbles=fraction of blue marbles×total number of marbles

where;

fraction of blue marbles=4/7 x

total number of marbles=42

replacing;

total number of blue marbles=(4/7)×42=24 marbles

5 0
2 years ago
Which of the following equations is equivalent to 6.87p + 9.2 = -7.056?
zhuklara [117]
P=8128/3435 that’s the Answr
8 0
2 years ago
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