3 years ago

PLEASE HELP!!!!!!!!!!

Mathematics

1 answer:

LenKa [72]3 years ago

8 0

Answer:

Step-by-step explanation:

because add all then divied all the mutiply the too numbers

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78 % of the class scored a C or above on their test. If there are 35 students in the class, how many scored a C or higher? Write

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Answer:

27 students

Step-by-step explanation:

$\frac{78}{100} =\frac{x}{35} \\$

cross multiply and you get 27

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Three of the quadrilaterals are square rectangle rhombus. Give a reason why the rectangle could be the odd one out.

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Answer: rectangle does not have all equal sides

Step-by-step explanation:

the square and rhombus are quadrilaterals that have equal side lengths on all sides

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What is the sum of the arithmetic series: s10 = -20, d = 4, a1 =?

Otrada [13]

<h2>Step-by-step explanation:</h2><h3> $\green\star$ Given</h3>

$\blue\star$ s10 = -20

$\blue\star$ n = 10

$\blue\star$ an = -20

$\green\star$ solution

$\green\star$ s10 = n\2 [a+(n-1)d]

$\green\star$ -20 = 10a2[a+(10-1)4]

$\green\star$ -4 = a +36

$\green\star$ a1 = -40

$\small\boxed{a = -40}$

Hope it helps.

Hope it helps

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3 years ago

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If f(x)= -2 , what is x?

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3 years ago

The Taylor family went on vacation. They traveled 412 miles on Monday. At the end of the day Tuesday, the average speed of the c

mixer [17]

Answer:

d = 56x + 412

Step-by-step explanation:

To find the total number of miles traveled on Monday and Tuesday, use a linear equation to write the function.

y = mx+b where m is the speed or rate of change and b is the starting point.

The starting point on Tuesday is 412 miles. This is b.

The number of miles traveled on Tuesday is found by calculating 56 miles times the number of hours traveled. This is the slope or m.

So the equation is d = 56h + 412.

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3 years ago